able/windows-nt
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
windows-nt/Source/XPSP1/NT/com/ole2ui32/pastespl.cpp

1886 lines
79 KiB
C++
Raw Normal View History

Add source files
2020-09-26 03:20:57 -05:00
/*
* PASTESPL.CPP
*
* Implements the OleUIPasteSpecial function which invokes the complete
* Paste Special dialog.
*
* Copyright (c)1992 Microsoft Corporation, All Rights Reserved
*/
#include "precomp.h"
#include "common.h"
#include "utility.h"
#include "resimage.h"
#include "iconbox.h"
#include <stdlib.h>
OLEDBGDATA
// Length of buffers to hold the strings 'Unknown Type', Unknown Source'
// and 'the application which created it'
// Extra long to allow room for localization.
#define PS_UNKNOWNSTRLEN 200
#define PS_UNKNOWNNAMELEN 256
// Property label used to store clipboard viewer chain information
#define NEXTCBVIEWER TEXT("NextCBViewer")
// Internally used structure
typedef struct tagPASTESPECIAL
{
// Keep this item first as the Standard* functions depend on it here.
LPOLEUIPASTESPECIAL lpOPS; //Original structure passed.
UINT nIDD; // IDD of dialog (used for help info)
/*
* What we store extra in this structure besides the original caller's
* pointer are those fields that we need to modify during the life of
* the dialog but that we don't want to change in the original structure
* until the user presses OK.
*/
DWORD dwFlags; // Local copy of paste special flags
int nPasteListCurSel; // Save the selection the user made last
int nPasteLinkListCurSel; // in the paste and pastelink lists
int nSelectedIndex; // Index in arrPasteEntries[] corresponding to user selection
BOOL fLink; // Indicates if Paste or PasteLink was selected by user
HGLOBAL hBuff; // Scratch Buffer for building up strings
TCHAR szUnknownType[PS_UNKNOWNSTRLEN]; // Buffer for 'Unknown Type' string
TCHAR szUnknownSource[PS_UNKNOWNSTRLEN]; // Buffer for 'Unknown Source' string
TCHAR szAppName[OLEUI_CCHKEYMAX]; // Application name of Source. Used in the result text
// when Paste is selected. Obtained using clsidOD.
// Information obtained from OBJECTDESCRIPTOR. This information is accessed when the Paste
// radio button is selected.
CLSID clsidOD; // ClassID of source
SIZEL sizelOD; // sizel transfered in
// ObjectDescriptor
TCHAR szFullUserTypeNameOD[PS_UNKNOWNNAMELEN]; // Full User Type Name
TCHAR szSourceOfDataOD[PS_UNKNOWNNAMELEN]; // Source of Data
BOOL fSrcAspectIconOD; // Does Source specify DVASPECT_ICON?
BOOL fSrcOnlyIconicOD; // Does Source specify OLEMISC_ONLYICONIC?
HGLOBAL hMetaPictOD; // Metafile containing icon and icon title
HGLOBAL hObjDesc; // Handle to OBJECTDESCRIPTOR structure from which the
// above information is obtained
// Information obtained from LINKSRCDESCRIPTOR. This infomation is accessed when the PasteLink
// radio button is selected.
CLSID clsidLSD; // ClassID of source
SIZEL sizelLSD; // sizel transfered in
// LinkSrcDescriptor
TCHAR szFullUserTypeNameLSD[PS_UNKNOWNNAMELEN];// Full User Type Name
TCHAR szSourceOfDataLSD[PS_UNKNOWNNAMELEN]; // Source of Data
BOOL fSrcAspectIconLSD; // Does Source specify DVASPECT_ICON?
BOOL fSrcOnlyIconicLSD; // Does Source specify OLEMISC_ONLYICONIC?
HGLOBAL hMetaPictLSD; // Metafile containing icon and icon title
HGLOBAL hLinkSrcDesc; // Handle to LINKSRCDESCRIPTOR structure from which the
// above information is obtained
BOOL fClipboardChanged; // Has clipboard content changed
// if so bring down dlg after
// ChangeIcon dlg returns.
} PASTESPECIAL, *PPASTESPECIAL, FAR *LPPASTESPECIAL;
// Data corresponding to each list item. A pointer to this structure is attached to each
// Paste\PasteLink list box item using LB_SETITEMDATA
typedef struct tagPASTELISTITEMDATA
{
int nPasteEntriesIndex; // Index of arrPasteEntries[] corresponding to list item
BOOL fCntrEnableIcon; // Does calling application (called container here)
// specify OLEUIPASTE_ENABLEICON for this item?
} PASTELISTITEMDATA, *PPASTELISTITEMDATA, FAR *LPPASTELISTITEMDATA;
// Internal function prototypes
// PASTESPL.CPP
INT_PTR CALLBACK PasteSpecialDialogProc(HWND, UINT, WPARAM, LPARAM);
BOOL FPasteSpecialInit(HWND hDlg, WPARAM, LPARAM);
BOOL FTogglePasteType(HWND, LPPASTESPECIAL, DWORD);
void ChangeListSelection(HWND, LPPASTESPECIAL, HWND);
void EnableDisplayAsIcon(HWND, LPPASTESPECIAL);
void ToggleDisplayAsIcon(HWND, LPPASTESPECIAL);
void ChangeIcon(HWND, LPPASTESPECIAL);
void SetPasteSpecialHelpResults(HWND, LPPASTESPECIAL);
BOOL FAddPasteListItem(HWND, BOOL, int, LPPASTESPECIAL, LPTSTR, LPTSTR);
BOOL FFillPasteList(HWND, LPPASTESPECIAL);
BOOL FFillPasteLinkList(HWND, LPPASTESPECIAL);
BOOL FHasPercentS(LPCTSTR, LPPASTESPECIAL);
HGLOBAL AllocateScratchMem(LPPASTESPECIAL);
void FreeListData(HWND);
BOOL FPasteSpecialReInit(HWND hDlg, LPPASTESPECIAL lpPS);
/*
* OleUIPasteSpecial
*
* Purpose:
* Invokes the standard OLE Paste Special dialog box which allows the user
* to select the format of the clipboard object to be pasted or paste linked.
*
* Parameters:
* lpPS LPOLEUIPasteSpecial pointing to the in-out structure
* for this dialog.
*
* Return Value:
* UINT One of the following codes or one of the standard error codes (OLEUI_ERR_*)
* defined in OLEDLG.H, indicating success or error:
* OLEUI_OK User selected OK
* OLEUI_CANCEL User cancelled the dialog
* OLEUI_IOERR_SRCDATAOBJECTINVALID lpSrcDataObject field of OLEUIPASTESPECIAL invalid
* OLEUI_IOERR_ARRPASTEENTRIESINVALID arrPasteEntries field of OLEUIPASTESPECIAL invalid
* OLEUI_IOERR_ARRLINKTYPESINVALID arrLinkTypes field of OLEUIPASTESPECIAL invalid
* OLEUI_PSERR_CLIPBOARDCHANGED Clipboard contents changed while dialog was up
*/
STDAPI_(UINT) OleUIPasteSpecial(LPOLEUIPASTESPECIAL lpPS)
{
UINT uRet;
HGLOBAL hMemDlg=NULL;
uRet = UStandardValidation((LPOLEUISTANDARD)lpPS, sizeof(OLEUIPASTESPECIAL),
&hMemDlg);
if (uRet != OLEUI_SUCCESS)
return uRet;
// Validate PasteSpecial specific fields
if (NULL != lpPS->lpSrcDataObj && IsBadReadPtr(lpPS->lpSrcDataObj, sizeof(IDataObject)))
{
uRet = OLEUI_IOERR_SRCDATAOBJECTINVALID;
}
if (NULL == lpPS->arrPasteEntries ||
IsBadReadPtr(lpPS->arrPasteEntries, lpPS->cPasteEntries * sizeof(OLEUIPASTEENTRY)))
{
uRet = OLEUI_IOERR_ARRPASTEENTRIESINVALID;
}
if (0 > lpPS->cLinkTypes || lpPS->cLinkTypes > PS_MAXLINKTYPES ||
IsBadReadPtr(lpPS->arrLinkTypes, lpPS->cLinkTypes * sizeof(UINT)))
{
uRet = OLEUI_IOERR_ARRLINKTYPESINVALID;
}
if (0 != lpPS->cClsidExclude &&
IsBadReadPtr(lpPS->lpClsidExclude, lpPS->cClsidExclude * sizeof(CLSID)))
{
uRet = OLEUI_IOERR_LPCLSIDEXCLUDEINVALID;
}
// If IDataObject passed is NULL, collect it from the clipboard
if (NULL == lpPS->lpSrcDataObj)
{
if (OleGetClipboard(&lpPS->lpSrcDataObj) != NOERROR)
uRet = OLEUI_PSERR_GETCLIPBOARDFAILED;
if (NULL == lpPS->lpSrcDataObj)
uRet = OLEUI_PSERR_GETCLIPBOARDFAILED;
}
if (uRet >= OLEUI_ERR_STANDARDMIN)
{
return uRet;
}
UINT nIDD = bWin4 ? IDD_PASTESPECIAL4 : IDD_PASTESPECIAL;
//Now that we've validated everything, we can invoke the dialog.
uRet = UStandardInvocation(PasteSpecialDialogProc, (LPOLEUISTANDARD)lpPS,
hMemDlg, MAKEINTRESOURCE(nIDD));
return uRet;
}
/*
* PasteSpecialDialogProc
*
* Purpose:
* Implements the OLE Paste Special dialog as invoked through the
* OleUIPasteSpecial function.
*
* Parameters:
* Standard
*
* Return Value:
* Standard
*/
INT_PTR CALLBACK PasteSpecialDialogProc(HWND hDlg, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
// Declare Win16/Win32 compatible WM_COMMAND parameters.
COMMANDPARAMS(wID, wCode, hWndMsg);
// This will fail under WM_INITDIALOG, where we allocate it.
UINT fHook = FALSE;
LPPASTESPECIAL lpPS = (LPPASTESPECIAL)LpvStandardEntry(
hDlg, iMsg, wParam, lParam, &fHook);
LPOLEUIPASTESPECIAL lpOPS = NULL;
if (lpPS != NULL)
lpOPS = lpPS->lpOPS;
//If the hook processed the message, we're done.
if (0!=fHook)
return (INT_PTR)fHook;
// Process help message from Change Icon
if (iMsg == uMsgHelp)
{
// if lPS is NULL (in low memory situations, just ignore it.
if (lpPS != NULL)
{
PostMessage(lpPS->lpOPS->hWndOwner, uMsgHelp, wParam, lParam);
}
return FALSE;
}
//Process the temination message
if (iMsg == uMsgEndDialog)
{
EndDialog(hDlg, wParam);
return TRUE;
}
switch (iMsg)
{
case WM_DESTROY:
if (lpPS)
{
HWND hwndNextViewer;
// Free the icon/icon-title metafile corresponding to Paste/PasteList option which is not selected
if (lpPS->fLink)
OleUIMetafilePictIconFree(lpPS->hMetaPictOD);
else
OleUIMetafilePictIconFree(lpPS->hMetaPictLSD);
// Free data associated with each list box entry
FreeListData(GetDlgItem(hDlg, IDC_PS_PASTELIST));
FreeListData(GetDlgItem(hDlg, IDC_PS_PASTELINKLIST));
//Free any specific allocations before calling StandardCleanup
if (lpPS->hObjDesc) GlobalFree(lpPS->hObjDesc);
if (lpPS->hLinkSrcDesc) GlobalFree(lpPS->hLinkSrcDesc);
if (lpPS->hBuff)
{
GlobalFree(lpPS->hBuff);
lpPS->hBuff = NULL;
}
// Change the clipboard notification chain
hwndNextViewer = (HWND)GetProp(hDlg, NEXTCBVIEWER);
if (hwndNextViewer != HWND_BROADCAST)
{
SetProp(hDlg, NEXTCBVIEWER, HWND_BROADCAST);
ChangeClipboardChain(hDlg, hwndNextViewer);
}
RemoveProp(hDlg, NEXTCBVIEWER);
StandardCleanup(lpPS, hDlg);
}
break;
case WM_INITDIALOG:
FPasteSpecialInit(hDlg, wParam, lParam);
return FALSE;
case WM_DRAWCLIPBOARD:
{
HWND hwndNextViewer = (HWND)GetProp(hDlg, NEXTCBVIEWER);
HWND hDlg_ChgIcon;
if (hwndNextViewer == HWND_BROADCAST)
break;
if (hwndNextViewer)
{
SendMessage(hwndNextViewer, iMsg, wParam, lParam);
// Refresh next viewer in case it got modified
// by the SendMessage() (likely if multiple
// PasteSpecial dialogs are up simultaneously)
hwndNextViewer = (HWND)GetProp(hDlg, NEXTCBVIEWER);
}
if (!(lpPS->dwFlags & PSF_STAYONCLIPBOARDCHANGE))
{
SetProp(hDlg, NEXTCBVIEWER, HWND_BROADCAST);
ChangeClipboardChain(hDlg, hwndNextViewer);
/* OLE2NOTE: if the ChangeIcon dialog is currently up, then
** we need to defer bringing down PasteSpecial dialog
** until after ChangeIcon dialog returns. if the
** ChangeIcon dialog is NOT up, then we can bring down
** the PasteSpecial dialog immediately.
*/
if ((hDlg_ChgIcon=(HWND)GetProp(hDlg,PROP_HWND_CHGICONDLG))!=NULL)
{
// ChangeIcon dialog is UP
lpPS->fClipboardChanged = TRUE;
}
else
{
// ChangeIcon dialog is NOT up
// Free icon and icon title metafile
SendDlgItemMessage(
hDlg, IDC_PS_ICONDISPLAY, IBXM_IMAGEFREE, 0, 0L);
SendMessage(
hDlg, uMsgEndDialog, OLEUI_PSERR_CLIPBOARDCHANGED,0L);
}
}
else
{
// skip refresh, ignoring clipboard change if PSF_NOREFRESHDATAOBJECT
if (lpPS->dwFlags & PSF_NOREFRESHDATAOBJECT)
break;
// release current data object
if (lpOPS->lpSrcDataObj != NULL)
{
lpOPS->lpSrcDataObj->Release();
lpOPS->lpSrcDataObj = NULL;
}
// obtain new one
if (OleGetClipboard(&lpOPS->lpSrcDataObj) != NOERROR)
{
SendMessage(hDlg, uMsgEndDialog, OLEUI_PSERR_GETCLIPBOARDFAILED, 0);
break;
}
// otherwise update the display to the new clipboard object
FPasteSpecialReInit(hDlg, lpPS);
}
}
break;
case WM_CHANGECBCHAIN:
{
HWND hwndNextViewer = (HWND)GetProp(hDlg, NEXTCBVIEWER);
if ((HWND)wParam == hwndNextViewer)
SetProp(hDlg, NEXTCBVIEWER, (hwndNextViewer = (HWND)lParam));
else if (hwndNextViewer && hwndNextViewer != HWND_BROADCAST)
SendMessage(hwndNextViewer, iMsg, wParam, lParam);
}
break;
case WM_COMMAND:
switch (wID)
{
case IDC_PS_PASTE:
FTogglePasteType(hDlg, lpPS, PSF_SELECTPASTE);
break;
case IDC_PS_PASTELINK:
FTogglePasteType(hDlg, lpPS, PSF_SELECTPASTELINK);
break;
case IDC_PS_DISPLAYLIST:
switch (wCode)
{
case LBN_SELCHANGE:
ChangeListSelection(hDlg, lpPS, hWndMsg);
break;
case LBN_DBLCLK:
// Same as pressing OK
if (IsWindowEnabled(GetDlgItem(hDlg, IDOK)))
SendCommand(hDlg, IDOK, BN_CLICKED, hWndMsg);
break;
}
break;
case IDC_PS_DISPLAYASICON:
ToggleDisplayAsIcon(hDlg, lpPS);
break;
case IDC_PS_CHANGEICON:
ChangeIcon(hDlg, lpPS);
if (lpPS->fClipboardChanged)
{
// Free icon and icon title metafile
SendDlgItemMessage(
hDlg, IDC_PS_ICONDISPLAY, IBXM_IMAGEFREE,0,0L);
SendMessage(hDlg, uMsgEndDialog,
OLEUI_PSERR_CLIPBOARDCHANGED, 0L);
}
break;
case IDOK:
{
BOOL fDestAspectIcon =
((lpPS->dwFlags & PSF_CHECKDISPLAYASICON) ?
TRUE : FALSE);
// Return current flags
lpOPS->dwFlags = lpPS->dwFlags;
// Return index of arrPasteEntries[] corresponding to format selected by user
lpOPS->nSelectedIndex = lpPS->nSelectedIndex;
// Return if user selected Paste or PasteLink
lpOPS->fLink = lpPS->fLink;
/* if user selected same ASPECT as displayed in the
** source, then sizel passed in the
** ObjectDescriptor/LinkSrcDescriptor is
** applicable. otherwise, the sizel does not apply.
*/
if (lpPS->fLink)
{
if (lpPS->fSrcAspectIconLSD == fDestAspectIcon)
lpOPS->sizel = lpPS->sizelLSD;
else
lpOPS->sizel.cx = lpOPS->sizel.cy = 0;
}
else
{
if (lpPS->fSrcAspectIconOD == fDestAspectIcon)
lpOPS->sizel = lpPS->sizelOD;
else
lpOPS->sizel.cx = lpOPS->sizel.cy = 0;
}
// Return metafile with icon and icon title that the user selected
lpOPS->hMetaPict = (HGLOBAL)SendDlgItemMessage(hDlg,
IDC_PS_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
SendMessage(hDlg, uMsgEndDialog, OLEUI_OK, 0L);
}
break;
case IDCANCEL:
// Free icon and icon title metafile
SendDlgItemMessage(
hDlg, IDC_PS_ICONDISPLAY, IBXM_IMAGEFREE, 0, 0L);
SendMessage(hDlg, uMsgEndDialog, OLEUI_CANCEL, 0L);
break;
case IDC_OLEUIHELP:
PostMessage(lpPS->lpOPS->hWndOwner, uMsgHelp,
(WPARAM)hDlg, MAKELPARAM(IDD_PASTESPECIAL, 0));
break;
}
break;
}
return FALSE;
}
BOOL FPasteSpecialReInit(HWND hDlg, LPPASTESPECIAL lpPS)
{
LPOLEUIPASTESPECIAL lpOPS = lpPS->lpOPS;
// free the icon/icon-title metafiel
if (lpPS->fLink)
OleUIMetafilePictIconFree(lpPS->hMetaPictOD);
else
OleUIMetafilePictIconFree(lpPS->hMetaPictLSD);
// Free data assocatiated with each list box entry
FreeListData(GetDlgItem(hDlg, IDC_PS_PASTELIST));
FreeListData(GetDlgItem(hDlg, IDC_PS_PASTELINKLIST));
SendDlgItemMessage(hDlg, IDC_PS_DISPLAYLIST, LB_RESETCONTENT, 0, 0);
// Initialize user selections in the Paste and PasteLink listboxes
lpPS->nPasteListCurSel = 0;
lpPS->nPasteLinkListCurSel = 0;
// Free previous object descriptor/link descriptor data
if (lpPS->hObjDesc != NULL)
{
GlobalFree(lpPS->hObjDesc);
lpPS->hObjDesc = NULL;
}
if (lpPS->hLinkSrcDesc != NULL)
{
GlobalFree(lpPS->hLinkSrcDesc);
lpPS->hLinkSrcDesc = NULL;
}
lpPS->szAppName[0] = '\0';
// GetData CF_OBJECTDESCRIPTOR. If the object on the clipboard in an
// OLE1 object (offering CF_OWNERLINK) or has been copied to
// clipboard by FileMaager (offering CF_FILENAME), an
// OBJECTDESCRIPTOR will be created will be created from CF_OWNERLINK
// or CF_FILENAME. See OBJECTDESCRIPTOR for more info.
STGMEDIUM medium;
CLIPFORMAT cfFormat;
lpPS->hObjDesc = OleStdFillObjectDescriptorFromData(
lpOPS->lpSrcDataObj, &medium, &cfFormat);
if (lpPS->hObjDesc)
{
LPOBJECTDESCRIPTOR lpOD = (LPOBJECTDESCRIPTOR)GlobalLock(lpPS->hObjDesc);
// Get FullUserTypeName, SourceOfCopy and CLSID
if (lpOD->dwFullUserTypeName)
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpPS->szFullUserTypeNameOD, (LPWSTR)((LPBYTE)lpOD+lpOD->dwFullUserTypeName), PS_UNKNOWNNAMELEN);
#else
lstrcpyn(lpPS->szFullUserTypeNameOD, (LPTSTR)((LPBYTE)lpOD+lpOD->dwFullUserTypeName), PS_UNKNOWNNAMELEN);
#endif
else
lstrcpyn(lpPS->szFullUserTypeNameOD, lpPS->szUnknownType, PS_UNKNOWNNAMELEN);
if (lpOD->dwSrcOfCopy)
{
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpPS->szSourceOfDataOD, (LPWSTR)((LPBYTE)lpOD+lpOD->dwSrcOfCopy), PS_UNKNOWNNAMELEN);
#else
lstrcpyn(lpPS->szSourceOfDataOD, (LPTSTR)((LPBYTE)lpOD+lpOD->dwSrcOfCopy), PS_UNKNOWNNAMELEN);
#endif
// If CF_FILENAME was offered, source of copy is a
// path name. Fit the path to the static control that will display it.
if (cfFormat == _g_cfFileName)
{
lstrcpyn(lpPS->szSourceOfDataOD, ChopText(GetDlgItem(hDlg, IDC_PS_SOURCETEXT), 0,
lpPS->szSourceOfDataOD, 0), PS_UNKNOWNNAMELEN);
}
}
else
lstrcpyn(lpPS->szSourceOfDataOD, lpPS->szUnknownSource, PS_UNKNOWNNAMELEN);
lpPS->clsidOD = lpOD->clsid;
lpPS->sizelOD = lpOD->sizel;
// Does source specify DVASPECT_ICON?
if (lpOD->dwDrawAspect & DVASPECT_ICON)
lpPS->fSrcAspectIconOD = TRUE;
else
lpPS->fSrcAspectIconOD = FALSE;
// Does source specify OLEMISC_ONLYICONIC?
if (lpOD->dwStatus & OLEMISC_ONLYICONIC)
lpPS->fSrcOnlyIconicOD = TRUE;
else
lpPS->fSrcOnlyIconicOD = FALSE;
// Get application name of source from auxusertype3 in the registration database
LPOLESTR lpszAppName = NULL;
if (OleRegGetUserType(lpPS->clsidOD, USERCLASSTYPE_APPNAME,
&lpszAppName) == NOERROR)
{
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpPS->szAppName, lpszAppName, OLEUI_CCHKEYMAX);
#else
lstrcpyn(lpPS->szAppName, lpszAppName, OLEUI_CCHKEYMAX);
#endif
OleStdFree(lpszAppName);
}
else
{
if (0 == LoadString(_g_hOleStdResInst, IDS_PSUNKNOWNAPP, lpPS->szAppName,
PS_UNKNOWNSTRLEN))
{
PostMessage(hDlg, uMsgEndDialog, OLEUI_ERR_LOADSTRING, 0L);
return FALSE;
}
}
// Retrieve an icon from the object
if (lpPS->fSrcAspectIconOD)
{
lpPS->hMetaPictOD = OleStdGetData(
lpOPS->lpSrcDataObj,
(CLIPFORMAT) CF_METAFILEPICT,
NULL,
DVASPECT_ICON,
&medium
);
}
// If object does not offer icon, obtain it from the CLSID
if (NULL == lpPS->hMetaPictOD)
lpPS->hMetaPictOD = OleGetIconOfClass(lpPS->clsidOD, NULL, TRUE);
}
// Does object offer CF_LINKSRCDESCRIPTOR?
lpPS->hLinkSrcDesc = OleStdGetData(
lpOPS->lpSrcDataObj,
(CLIPFORMAT) _g_cfLinkSrcDescriptor,
NULL,
DVASPECT_CONTENT,
&medium);
if (lpPS->hLinkSrcDesc)
{
// Get FullUserTypeName, SourceOfCopy and CLSID
LPLINKSRCDESCRIPTOR lpLSD = (LPLINKSRCDESCRIPTOR)GlobalLock(lpPS->hLinkSrcDesc);
if (lpLSD->dwFullUserTypeName)
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpPS->szFullUserTypeNameLSD, (LPWSTR)((LPBYTE)lpLSD+lpLSD->dwFullUserTypeName), PS_UNKNOWNNAMELEN);
#else
lstrcpyn(lpPS->szFullUserTypeNameLSD, (LPTSTR)((LPBYTE)lpLSD+lpLSD->dwFullUserTypeName), PS_UNKNOWNNAMELEN);
#endif
else
lstrcpyn(lpPS->szFullUserTypeNameLSD, lpPS->szUnknownType, PS_UNKNOWNNAMELEN);
if (lpLSD->dwSrcOfCopy)
#if defined(WIN32) && !defined(UNICODE)
WTOA(lpPS->szSourceOfDataLSD, (LPWSTR)((LPBYTE)lpLSD+lpLSD->dwSrcOfCopy), PS_UNKNOWNNAMELEN);
#else
lstrcpyn(lpPS->szSourceOfDataLSD, (LPTSTR)((LPBYTE)lpLSD+lpLSD->dwSrcOfCopy), PS_UNKNOWNNAMELEN);
#endif
else
lstrcpyn(lpPS->szSourceOfDataLSD, lpPS->szUnknownSource, PS_UNKNOWNNAMELEN);
// if no ObjectDescriptor, then use LinkSourceDescriptor source string
if (!lpPS->hObjDesc)
lstrcpyn(lpPS->szSourceOfDataOD, lpPS->szSourceOfDataLSD, PS_UNKNOWNNAMELEN);
lpPS->clsidLSD = lpLSD->clsid;
lpPS->sizelLSD = lpLSD->sizel;
// Does source specify DVASPECT_ICON?
if (lpLSD->dwDrawAspect & DVASPECT_ICON)
lpPS->fSrcAspectIconLSD = TRUE;
else
lpPS->fSrcAspectIconLSD = FALSE;
// Does source specify OLEMISC_ONLYICONIC?
if (lpLSD->dwStatus & OLEMISC_ONLYICONIC)
lpPS->fSrcOnlyIconicLSD = TRUE;
else
lpPS->fSrcOnlyIconicLSD = FALSE;
// Retrieve an icon from the object
if (lpPS->fSrcAspectIconLSD)
{
lpPS->hMetaPictLSD = OleStdGetData(
lpOPS->lpSrcDataObj,
CF_METAFILEPICT,
NULL,
DVASPECT_ICON,
&medium
);
}
// If object does not offer icon, obtain it from the CLSID
if (NULL == lpPS->hMetaPictLSD)
{
HWND hIconWnd = GetDlgItem(hDlg, IDC_PS_ICONDISPLAY);
RECT IconRect; GetClientRect(hIconWnd, &IconRect);
LPTSTR lpszLabel = OleStdCopyString(lpPS->szSourceOfDataLSD);
// width is 2 times width of iconbox because it can wrap
int nWidth = (IconRect.right-IconRect.left) * 2;
// limit text to the width or max characters
LPTSTR lpszChopLabel = ChopText(hIconWnd, nWidth, lpszLabel,
lstrlen(lpszLabel));
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszChopLabel[MAX_PATH];
ATOW(wszChopLabel, lpszChopLabel, MAX_PATH);
lpPS->hMetaPictLSD =
OleGetIconOfClass(lpPS->clsidLSD, wszChopLabel, FALSE);
#else
lpPS->hMetaPictLSD =
OleGetIconOfClass(lpPS->clsidLSD, lpszChopLabel, FALSE);
#endif
OleStdFree(lpszLabel);
}
}
else if (lpPS->hObjDesc) // Does not offer CF_LINKSRCDESCRIPTOR but offers CF_OBJECTDESCRIPTOR
{
// Copy the values of OBJECTDESCRIPTOR
lstrcpyn(lpPS->szFullUserTypeNameLSD, lpPS->szFullUserTypeNameOD, PS_UNKNOWNNAMELEN);
lstrcpyn(lpPS->szSourceOfDataLSD, lpPS->szSourceOfDataOD, PS_UNKNOWNNAMELEN);
lpPS->clsidLSD = lpPS->clsidOD;
lpPS->sizelLSD = lpPS->sizelOD;
lpPS->fSrcAspectIconLSD = lpPS->fSrcAspectIconOD;
lpPS->fSrcOnlyIconicLSD = lpPS->fSrcOnlyIconicOD;
// Don't copy the hMetaPict; instead get a separate copy
if (lpPS->fSrcAspectIconLSD)
{
lpPS->hMetaPictLSD = OleStdGetData(
lpOPS->lpSrcDataObj,
CF_METAFILEPICT,
NULL,
DVASPECT_ICON,
&medium
);
}
if (NULL == lpPS->hMetaPictLSD)
{
HWND hIconWnd = GetDlgItem(hDlg, IDC_PS_ICONDISPLAY);
RECT IconRect; GetClientRect(hIconWnd, &IconRect);
LPTSTR lpszLabel = OleStdCopyString(lpPS->szSourceOfDataLSD);
// width is 2 times width of iconbox because it can wrap
int nWidth = (IconRect.right-IconRect.left) * 2;
// limit text to the width or max characters
LPTSTR lpszChopLabel = ChopText(hIconWnd, nWidth, lpszLabel,
lstrlen(lpszLabel));
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszChopLabel[MAX_PATH];
ATOW(wszChopLabel, lpszChopLabel, MAX_PATH);
lpPS->hMetaPictLSD =
OleGetIconOfClass(lpPS->clsidLSD, wszChopLabel, FALSE);
#else
lpPS->hMetaPictLSD =
OleGetIconOfClass(lpPS->clsidLSD, lpszChopLabel, FALSE);
#endif
OleStdFree(lpszLabel);
}
}
// Not an OLE object
if (lpPS->hObjDesc == NULL && lpPS->hLinkSrcDesc == NULL)
{
lstrcpyn(lpPS->szFullUserTypeNameLSD, lpPS->szUnknownType, PS_UNKNOWNNAMELEN);
lstrcpyn(lpPS->szFullUserTypeNameOD, lpPS->szUnknownType, PS_UNKNOWNNAMELEN);
lstrcpyn(lpPS->szSourceOfDataLSD, lpPS->szUnknownSource, PS_UNKNOWNNAMELEN);
lstrcpyn(lpPS->szSourceOfDataOD, lpPS->szUnknownSource, PS_UNKNOWNNAMELEN);
lpPS->hMetaPictLSD = lpPS->hMetaPictOD = NULL;
}
// Allocate scratch memory to construct item names in the paste and pastelink listboxes
if (lpPS->hBuff != NULL)
{
GlobalFree(lpPS->hBuff);
lpPS->hBuff = NULL;
}
lpPS->hBuff = AllocateScratchMem(lpPS);
if (lpPS->hBuff == NULL)
{
PostMessage(hDlg, uMsgEndDialog, OLEUI_ERR_GLOBALMEMALLOC, 0L);
return FALSE;
}
// Select the Paste Link Button if specified. Otherwise select
// Paste Button by default
if (lpPS->dwFlags & PSF_SELECTPASTELINK)
lpPS->dwFlags = (lpPS->dwFlags & ~PSF_SELECTPASTE) | PSF_SELECTPASTELINK;
else
lpPS->dwFlags =(lpPS->dwFlags & ~PSF_SELECTPASTELINK) | PSF_SELECTPASTE;
// Mark which PasteEntry formats are available from source data object
OleStdMarkPasteEntryList(
lpOPS->lpSrcDataObj, lpOPS->arrPasteEntries, lpOPS->cPasteEntries);
// Check if items are available to be pasted
BOOL fPasteAvailable = FFillPasteList(hDlg, lpPS);
if (!fPasteAvailable)
lpPS->dwFlags &= ~PSF_SELECTPASTE;
StandardEnableDlgItem(hDlg, IDC_PS_PASTE, fPasteAvailable);
// Check if items are available to be paste-linked
BOOL fPasteLinkAvailable = FFillPasteLinkList(hDlg, lpPS);
if (!fPasteLinkAvailable)
lpPS->dwFlags &= ~PSF_SELECTPASTELINK;
StandardEnableDlgItem(hDlg, IDC_PS_PASTELINK, fPasteLinkAvailable);
// If one of Paste or PasteLink is disabled, select the other one
// regardless of what the input flags say
if (fPasteAvailable && !fPasteLinkAvailable)
lpPS->dwFlags |= PSF_SELECTPASTE;
if (fPasteLinkAvailable && !fPasteAvailable)
lpPS->dwFlags |= PSF_SELECTPASTELINK;
BOOL bEnabled = TRUE;
if (lpPS->dwFlags & PSF_SELECTPASTE)
{
// FTogglePaste will set the PSF_SELECTPASTE flag, so clear it.
lpPS->dwFlags &= ~PSF_SELECTPASTE;
CheckRadioButton(hDlg, IDC_PS_PASTE, IDC_PS_PASTELINK, IDC_PS_PASTE);
FTogglePasteType(hDlg, lpPS, PSF_SELECTPASTE);
}
else if (lpPS->dwFlags & PSF_SELECTPASTELINK)
{
// FTogglePaste will set the PSF_SELECTPASTELINK flag, so clear it.
lpPS->dwFlags &= ~PSF_SELECTPASTELINK;
CheckRadioButton(hDlg, IDC_PS_PASTE, IDC_PS_PASTELINK, IDC_PS_PASTELINK);
FTogglePasteType(hDlg, lpPS, PSF_SELECTPASTELINK);
}
else // Items are not available to be be Pasted or Paste-Linked
{
// Enable or disable DisplayAsIcon and set the result text and image
EnableDisplayAsIcon(hDlg, lpPS);
SetPasteSpecialHelpResults(hDlg, lpPS);
SetDlgItemText(hDlg, IDC_PS_SOURCETEXT, lpPS->szSourceOfDataOD);
CheckRadioButton(hDlg, IDC_PS_PASTE, IDC_PS_PASTELINK, 0);
bEnabled = FALSE;
}
StandardEnableDlgItem(hDlg, IDOK, bEnabled);
return TRUE;
}
/*
* FPasteSpecialInit
*
* Purpose:
* WM_INITIDIALOG handler for the Paste Special dialog box.
*
* Parameters:
* hDlg HWND of the dialog
* wParam WPARAM of the message
* lParam LPARAM of the message
*
* Return Value:
* BOOL Value to return for WM_INITDIALOG.
*/
BOOL FPasteSpecialInit(HWND hDlg, WPARAM wParam, LPARAM lParam)
{
// Copy the structure at lParam into our instance memory.
HFONT hFont;
LPPASTESPECIAL lpPS = (LPPASTESPECIAL)LpvStandardInit(hDlg, sizeof(PASTESPECIAL), &hFont);
// PvStandardInit sent a termination to us already.
if (NULL == lpPS)
return FALSE;
LPOLEUIPASTESPECIAL lpOPS = (LPOLEUIPASTESPECIAL)lParam;
// Copy other information from lpOPS that we might modify.
lpPS->lpOPS = lpOPS;
lpPS->nIDD = IDD_PASTESPECIAL;
lpPS->dwFlags = lpOPS->dwFlags;
// If we got a font, send it to the necessary controls.
if (NULL!=hFont)
{
SendDlgItemMessage(hDlg, IDC_PS_SOURCETEXT, WM_SETFONT, (WPARAM)hFont, 0L);
SendDlgItemMessage(hDlg, IDC_PS_RESULTTEXT, WM_SETFONT, (WPARAM)hFont, 0L);
}
// Hide the help button if required
if (!(lpPS->lpOPS->dwFlags & PSF_SHOWHELP))
StandardShowDlgItem(hDlg, IDC_OLEUIHELP, SW_HIDE);
// Show or hide the Change icon button
if (lpPS->dwFlags & PSF_HIDECHANGEICON)
DestroyWindow(GetDlgItem(hDlg, IDC_PS_CHANGEICON));
// Hide all DisplayAsIcon related controls if it should be disabled
if (lpPS->dwFlags & PSF_DISABLEDISPLAYASICON)
{
StandardShowDlgItem(hDlg, IDC_PS_DISPLAYASICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_PS_CHANGEICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, SW_HIDE);
}
// clear PSF_CHECKDISPLAYASICON -> it's an output parameter only
lpPS->dwFlags &= ~ PSF_CHECKDISPLAYASICON;
// Change the caption if required
if (NULL != lpOPS->lpszCaption)
SetWindowText(hDlg, lpOPS->lpszCaption);
// Load 'Unknown Source' and 'Unknown Type' strings
int n = LoadString(_g_hOleStdResInst, IDS_PSUNKNOWNTYPE, lpPS->szUnknownType, PS_UNKNOWNSTRLEN);
if (n)
n = LoadString(_g_hOleStdResInst, IDS_PSUNKNOWNSRC, lpPS->szUnknownSource, PS_UNKNOWNSTRLEN);
if (!n)
{
PostMessage(hDlg, uMsgEndDialog, OLEUI_ERR_LOADSTRING, 0L);
return FALSE;
}
if (!FPasteSpecialReInit(hDlg, lpPS))
return FALSE;
// Give initial focus to the list box
SetFocus(GetDlgItem(hDlg, IDC_PS_DISPLAYLIST));
// Set property to handle clipboard change notifications
SetProp(hDlg, NEXTCBVIEWER, HWND_BROADCAST);
SetProp(hDlg, NEXTCBVIEWER, SetClipboardViewer(hDlg));
lpPS->fClipboardChanged = FALSE;
/*
* PERFORM OTHER INITIALIZATION HERE.
*/
// Call the hook with lCustData in lParam
UStandardHook(lpPS, hDlg, WM_INITDIALOG, wParam, lpOPS->lCustData);
return TRUE;
}
/*
* FTogglePasteType
*
* Purpose:
* Toggles between Paste and Paste Link. The Paste list and PasteLink
* list are always invisible. The Display List is filled from either
* the Paste list or the PasteLink list depending on which Paste radio
* button is selected.
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
* dwOption Paste or PasteSpecial option
*
* Return Value:
* BOOL Returns TRUE if the option has already been selected.
* Otherwise the option is selected and FALSE is returned
*/
BOOL FTogglePasteType(HWND hDlg, LPPASTESPECIAL lpPS, DWORD dwOption)
{
DWORD dwTemp;
HWND hList, hListDisplay;
LRESULT dwData;
int i, nItems;
LPTSTR lpsz;
// Skip all this if the button is already selected
if (lpPS->dwFlags & dwOption)
return TRUE;
dwTemp = PSF_SELECTPASTE | PSF_SELECTPASTELINK;
lpPS->dwFlags = (lpPS->dwFlags & ~dwTemp) | dwOption;
// Hide IconDisplay. This prevents flashing if the icon display is changed
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, SW_HIDE);
hListDisplay = GetDlgItem(hDlg, IDC_PS_DISPLAYLIST);
// If Paste was selected
if (lpPS->dwFlags & PSF_SELECTPASTE)
{
// Set the Source of the object in the clipboard
SetDlgItemText(hDlg, IDC_PS_SOURCETEXT, lpPS->szSourceOfDataOD);
// If an icon is available
if (lpPS->hMetaPictOD)
// Set the icon display
SendDlgItemMessage(hDlg, IDC_PS_ICONDISPLAY, IBXM_IMAGESET,
0, (LPARAM)lpPS->hMetaPictOD);
hList = GetDlgItem(hDlg, IDC_PS_PASTELIST);
// We are switching from PasteLink to Paste. Remember current selection
// in PasteLink list so it can be restored.
lpPS->nPasteLinkListCurSel = (int)SendMessage(hListDisplay, LB_GETCURSEL, 0, 0L);
if (lpPS->nPasteLinkListCurSel == LB_ERR)
lpPS->nPasteLinkListCurSel = 0;
// Remember if user selected Paste or PasteLink
lpPS->fLink = FALSE;
}
else // If PasteLink was selected
{
// Set the Source of the object in the clipboard
SetDlgItemText(hDlg, IDC_PS_SOURCETEXT, lpPS->szSourceOfDataLSD);
// If an icon is available
if (lpPS->hMetaPictLSD)
// Set the icon display
SendDlgItemMessage(hDlg, IDC_PS_ICONDISPLAY, IBXM_IMAGESET,
0, (LPARAM)lpPS->hMetaPictLSD);
hList = GetDlgItem(hDlg, IDC_PS_PASTELINKLIST);
// We are switching from Paste to PasteLink. Remember current selection
// in Paste list so it can be restored.
lpPS->nPasteListCurSel = (int)SendMessage(hListDisplay, LB_GETCURSEL, 0, 0L);
if (lpPS->nPasteListCurSel == LB_ERR)
lpPS->nPasteListCurSel = 0;
// Remember if user selected Paste or PasteLink
lpPS->fLink = TRUE;
}
// Turn drawing off while the Display List is being filled
SendMessage(hListDisplay, WM_SETREDRAW, (WPARAM)FALSE, 0L);
// Move data to Display list box
SendMessage(hListDisplay, LB_RESETCONTENT, 0, 0L);
nItems = (int) SendMessage(hList, LB_GETCOUNT, 0, 0L);
lpsz = (LPTSTR)GlobalLock(lpPS->hBuff);
for (i = 0; i < nItems; i++)
{
SendMessage(hList, LB_GETTEXT, (WPARAM)i, (LPARAM)lpsz);
dwData = SendMessage(hList, LB_GETITEMDATA, (WPARAM)i, 0L);
SendMessage(hListDisplay, LB_INSERTSTRING, (WPARAM)i, (LPARAM)lpsz);
SendMessage(hListDisplay, LB_SETITEMDATA, (WPARAM)i, dwData);
}
GlobalUnlock(lpPS->hBuff);
// Restore the selection in the Display List from user's last selection
if (lpPS->dwFlags & PSF_SELECTPASTE)
SendMessage(hListDisplay, LB_SETCURSEL, lpPS->nPasteListCurSel, 0L);
else
SendMessage(hListDisplay, LB_SETCURSEL, lpPS->nPasteLinkListCurSel, 0L);
// Paint Display List
SendMessage(hListDisplay, WM_SETREDRAW, (WPARAM)TRUE, 0L);
InvalidateRect(hListDisplay, NULL, TRUE);
UpdateWindow(hListDisplay);
// Auto give the focus to the Display List
if (GetForegroundWindow() == hDlg)
SetFocus(hListDisplay);
// Enable/Disable DisplayAsIcon and set the help result text and bitmap corresponding to
// the current selection
ChangeListSelection(hDlg, lpPS, hListDisplay);
return FALSE;
}
/*
* ChangeListSelection
*
* Purpose:
* When the user changes the selection in the list, DisplayAsIcon is enabled or disabled,
* Result text and bitmap are updated and the index of the arrPasteEntries[] corresponding
* to the current format selection is saved.
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
* hList HWND of the List
*
* Return Value:
* No return value
*/
void ChangeListSelection(HWND hDlg, LPPASTESPECIAL lpPS, HWND hList)
{
LPPASTELISTITEMDATA lpItemData;
int nCurSel;
EnableDisplayAsIcon(hDlg, lpPS);
SetPasteSpecialHelpResults(hDlg, lpPS);
// Remember index of arrPasteEntries[] corresponding to the current selection
nCurSel = (int)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (nCurSel == LB_ERR)
return;
lpItemData = (LPPASTELISTITEMDATA) SendMessage(hList, LB_GETITEMDATA,
(WPARAM)nCurSel, 0L);
if ((LRESULT)lpItemData == LB_ERR)
return;
lpPS->nSelectedIndex = lpItemData->nPasteEntriesIndex;
}
/*
* EnableDisplayAsIcon
*
* Purpose:
* Enable or disable the DisplayAsIcon button depending on whether
* the current selection can be displayed as an icon or not. The following table describes
* the state of DisplayAsIcon. The calling application is termed CONTAINER, the source
* of data on the clipboard is termed SOURCE.
* Y = Yes; N = No; Blank = State does not matter;
* =====================================================================
* SOURCE SOURCE CONTAINER DisplayAsIcon
* specifies specifies specifies Initial State
* DVASPECT_ICON OLEMISC_ONLYICONIC OLEUIPASTE_ENABLEICON
*
* N Unchecked&Disabled
* Y Y Checked&Disabled
* Y N Y Checked&Enabled
* N N Y Unchecked&Enabled
* =====================================================================
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
*
* Return Value:
* No return value
*/
void EnableDisplayAsIcon(HWND hDlg, LPPASTESPECIAL lpPS)
{
int nIndex;
BOOL fCntrEnableIcon;
BOOL fSrcOnlyIconic = (lpPS->fLink) ? lpPS->fSrcOnlyIconicLSD : lpPS->fSrcOnlyIconicOD;
BOOL fSrcAspectIcon = (lpPS->fLink) ? lpPS->fSrcAspectIconLSD : lpPS->fSrcAspectIconOD;
HWND hList;
LPPASTELISTITEMDATA lpItemData;
HGLOBAL hMetaPict = (lpPS->fLink) ? lpPS->hMetaPictLSD : lpPS->hMetaPictOD;
hList = GetDlgItem(hDlg, IDC_PS_DISPLAYLIST);
// Get data corresponding to the current selection in the listbox
nIndex = (int)SendMessage(hList, LB_GETCURSEL, 0, 0);
if (nIndex != LB_ERR)
{
lpItemData = (LPPASTELISTITEMDATA) SendMessage(hList, LB_GETITEMDATA, (WPARAM)nIndex, 0L);
if ((LRESULT)lpItemData != LB_ERR)
fCntrEnableIcon = lpItemData->fCntrEnableIcon;
else fCntrEnableIcon = FALSE;
}
else fCntrEnableIcon = FALSE;
// If there is an icon available
if (hMetaPict != NULL)
{
if (!fCntrEnableIcon) // Does CONTAINER specify OLEUIPASTE_ENABLEICON?
{
// Uncheck & Disable DisplayAsIcon
lpPS->dwFlags &= ~PSF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, IDC_PS_DISPLAYASICON, FALSE);
StandardEnableDlgItem(hDlg, IDC_PS_DISPLAYASICON, FALSE);
// Hide IconDisplay and ChangeIcon button
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_PS_CHANGEICON, SW_HIDE);
}
else if (fSrcOnlyIconic) // Does SOURCE specify OLEMISC_ONLYICONIC?
{
// Check & Disable DisplayAsIcon
lpPS->dwFlags |= PSF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, IDC_PS_DISPLAYASICON, TRUE);
StandardEnableDlgItem(hDlg, IDC_PS_DISPLAYASICON, FALSE);
// Show IconDisplay and ChangeIcon button
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, SW_SHOWNORMAL);
StandardShowDlgItem(hDlg, IDC_PS_CHANGEICON, SW_SHOWNORMAL);
}
else if (fSrcAspectIcon) // Does SOURCE specify DVASPECT_ICON?
{
// Check & Enable DisplayAsIcon
lpPS->dwFlags |= PSF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, IDC_PS_DISPLAYASICON, TRUE);
StandardEnableDlgItem(hDlg, IDC_PS_DISPLAYASICON, TRUE);
// Show IconDisplay and ChangeIcon button
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, SW_SHOWNORMAL);
StandardShowDlgItem(hDlg, IDC_PS_CHANGEICON, SW_SHOWNORMAL);
}
else
{
//Uncheck and Enable DisplayAsIcon
lpPS->dwFlags &= ~PSF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, IDC_PS_DISPLAYASICON, FALSE);
StandardEnableDlgItem(hDlg, IDC_PS_DISPLAYASICON, TRUE);
// Hide IconDisplay and ChangeIcon button
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_PS_CHANGEICON, SW_HIDE);
}
}
else // No icon available
{
// Unchecked & Disabled
lpPS->dwFlags &= ~PSF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, IDC_PS_DISPLAYASICON, FALSE);
StandardEnableDlgItem(hDlg, IDC_PS_DISPLAYASICON, FALSE);
// Hide IconDisplay and ChangeIcon button
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_PS_CHANGEICON, SW_HIDE);
}
}
/*
* ToggleDisplayAsIcon
*
* Purpose:
* Toggles the DisplayAsIcon button. Hides or shows the Icon Display and
* the ChangeIcon button and changes the help result text and bitmap.
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
*
* Return Value:
* None
*
*/
void ToggleDisplayAsIcon(HWND hDlg, LPPASTESPECIAL lpPS)
{
BOOL fCheck;
int i;
fCheck = IsDlgButtonChecked(hDlg, IDC_PS_DISPLAYASICON);
if (fCheck)
lpPS->dwFlags |= PSF_CHECKDISPLAYASICON;
else lpPS->dwFlags &= ~PSF_CHECKDISPLAYASICON;
// Set the help result text and bitmap
SetPasteSpecialHelpResults(hDlg, lpPS);
// Show or hide the Icon Display and ChangeIcon button depending
// on the check state
i = (fCheck) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, IDC_PS_ICONDISPLAY, i);
StandardShowDlgItem(hDlg, IDC_PS_CHANGEICON, i);
}
/*
* ChangeIcon
*
* Purpose:
* Brings up the ChangeIcon dialog which allows the user to change
* the icon and label.
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
*
* Return Value:
* None
*
*/
void ChangeIcon(HWND hDlg, LPPASTESPECIAL lpPS)
{
OLEUICHANGEICON ci;
UINT uRet;
CLSID clsid = (lpPS->fLink) ? lpPS->clsidLSD : lpPS->clsidOD;
//Initialize the structure
memset((LPOLEUICHANGEICON)&ci, 0, sizeof(ci));
ci.hMetaPict = (HGLOBAL)SendDlgItemMessage(hDlg, IDC_PS_ICONDISPLAY,
IBXM_IMAGEGET, 0, 0L);
ci.cbStruct = sizeof(ci);
ci.hWndOwner = hDlg;
ci.clsid = clsid;
ci.dwFlags = CIF_SELECTCURRENT;
// Only show help in the ChangeIcon dialog if we're showing it in this dialog.
if (lpPS->dwFlags & PSF_SHOWHELP)
ci.dwFlags |= CIF_SHOWHELP;
// Let the hook in to customize Change Icon if desired.
uRet = UStandardHook(lpPS, hDlg, uMsgChangeIcon, 0, (LPARAM)&ci);
if (0 == uRet)
uRet=(UINT)(OLEUI_OK==OleUIChangeIcon(&ci));
// Update the display if necessary.
if (0!=uRet)
{
/*
* OleUIChangeIcon will have already freed our
* current hMetaPict that we passed in when OK is
* pressed in that dialog. So we use 0L as lParam
* here so the IconBox doesn't try to free the
* metafilepict again.
*/
SendDlgItemMessage(hDlg, IDC_PS_ICONDISPLAY,
IBXM_IMAGESET, 0, (LPARAM)ci.hMetaPict);
// Remember the new icon chosen by the user. Note that Paste and PasteLink have separate
// icons - changing one does not change the other.
if (lpPS->fLink)
lpPS->hMetaPictLSD = ci.hMetaPict;
else
lpPS->hMetaPictOD = ci.hMetaPict;
}
}
/*
*SetPasteSpecialHelpResults
*
* Purpose:
* Sets the help result text and bitmap according to the current
* list selection. The following state table indicates which ResultText
* and ResultImage are selected. If %s in the lpstrFormatName is present,
* it is assumed that an object is being pasted/paste-linked, otherwise it
* is assumed that data is being pasted/paste-linked.
* Y = Yes; N = No; Blank = State does not matter;
* The numbers in the the ResultText and ResultImage columns refer to the table
* entries that follow.
* =====================================================================
* Paste/ lpstrFormatName in DisplayAsIcon Result Result
* PasteLink arrPasteEntry[]contains %s checked Text Image
* (Is Object == Y, Is Data == N)
* Paste N 1 1
* Paste Y N 2 2
* Paste Y Y 3 3
* PasteLink N 4 4
* PasteLink Y N 5 4
* PasteLink Y Y 6 5
* =====================================================================
* Result Text:
*
* 1. "Inserts the contents of the Clipboard into your document as <native type name,
* and optionally an additional help sentence>"
* 2. "Inserts the contents of the Clipboard into your document so that you may
* activate it using <object app name>"
* 3. "Inserts the contents of the Clipboard into your document so that you may
* activate it using <object app name>. It will be displayed as an icon."
* 4. "Inserts the contents of the Clipboard into your document as <native type name>.
* Paste Link creates a link to the source file so that changes to the source file
* will be reflected in your document."
* 5. "Inserts a picture of the Clipboard contents into your document. Paste Link
* creates a link to the source file so that changes to the source file will be
* reflected in your document."
* 6. "Inserts an icon into your document which represents the Clipboard contents.
* Paste Link creates a link to the source file so that changes to the source file
* will be reflected in your document."
* =====================================================================
* Result Image:
*
* 1. Clipboard Image
* 2. Paste image, non-iconic.
* 3. Paste image, iconic.
* 4. Paste Link image, non-iconic
* 5. Paste Link image, iconic
* ====================================================================
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
*
* Return Value:
* No return value
*/
void SetPasteSpecialHelpResults(HWND hDlg, LPPASTESPECIAL lpPS)
{
LPTSTR psz1, psz2, psz3, psz4;
UINT i, iString, iImage, cch;
int nPasteEntriesIndex;
BOOL fDisplayAsIcon;
BOOL fIsObject;
HWND hList;
LPPASTELISTITEMDATA lpItemData;
LPOLEUIPASTESPECIAL lpOPS = lpPS->lpOPS;
LPTSTR szFullUserTypeName = (lpPS->fLink) ?
lpPS->szFullUserTypeNameLSD : lpPS->szFullUserTypeNameOD;
LPTSTR szInsert;
hList = GetDlgItem(hDlg, IDC_PS_DISPLAYLIST);
i=(UINT)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (i != LB_ERR)
{
lpItemData = (LPPASTELISTITEMDATA)SendMessage(hList, LB_GETITEMDATA, i, 0L);
if ((LRESULT)lpItemData == LB_ERR) return;
nPasteEntriesIndex = lpItemData->nPasteEntriesIndex;
// Check if there is a '%s' in the lpstrFormatName, then an object is being
// pasted/pastelinked. Otherwise Data is being pasted-pastelinked.
fIsObject = FHasPercentS(lpOPS->arrPasteEntries[nPasteEntriesIndex].lpstrFormatName,
lpPS);
}
else
return;
// Is DisplayAsIcon checked?
fDisplayAsIcon=(0L!=(lpPS->dwFlags & PSF_CHECKDISPLAYASICON));
szInsert = szFullUserTypeName;
if (lpPS->dwFlags & PSF_SELECTPASTE) // If user selected Paste
{
if (fIsObject)
{
iString = fDisplayAsIcon ? IDS_PSPASTEOBJECTASICON : IDS_PSPASTEOBJECT;
iImage = fDisplayAsIcon ? RESULTIMAGE_EMBEDICON : RESULTIMAGE_EMBED;
szInsert = lpPS->szAppName;
}
else
{
iString = IDS_PSPASTEDATA;
iImage = RESULTIMAGE_PASTE;
}
}
else if (lpPS->dwFlags & PSF_SELECTPASTELINK) // User selected PasteLink
{
if (fIsObject)
{
iString = fDisplayAsIcon ? IDS_PSPASTELINKOBJECTASICON : IDS_PSPASTELINKOBJECT;
iImage = fDisplayAsIcon ? RESULTIMAGE_LINKICON : RESULTIMAGE_LINK;
}
else
{
iString = IDS_PSPASTELINKDATA;
iImage = RESULTIMAGE_LINK;
}
}
else // Should never occur.
{
iString = IDS_PSNONOLE;
iImage = RESULTIMAGE_PASTE;
}
// hBuff contains enough space for the 4 buffers required to build up the help
// result text.
cch = (UINT)(GlobalSize(lpPS->hBuff) / sizeof(TCHAR)) / 4;
psz1 = (LPTSTR)GlobalLock(lpPS->hBuff);
psz2 = psz1 + cch;
psz3 = psz2 + cch;
psz4 = psz3 + cch;
// Default is an empty string.
*psz1 = 0;
if (0 != LoadString(_g_hOleStdResInst, iString, psz1, cch) &&
nPasteEntriesIndex != -1)
{
// Insert the FullUserTypeName of the source object into the partial result text
// specified by the container.
wsprintf(psz3, lpOPS->arrPasteEntries[nPasteEntriesIndex].lpstrResultText,
(LPTSTR)szInsert);
// Insert the above partial result text into the standard result text.
wsprintf(psz4, psz1, (LPTSTR)psz3);
psz1 = psz4;
}
// If LoadString failed, we simply clear out the results (*psz1 = 0 above)
SetDlgItemText(hDlg, IDC_PS_RESULTTEXT, psz1);
GlobalUnlock(lpPS->hBuff);
// Change the result bitmap
SendDlgItemMessage(hDlg, IDC_PS_RESULTIMAGE, RIM_IMAGESET, iImage, 0L);
}
/*
* FAddPasteListItem
*
* Purpose:
* Adds an item to the list box
*
* Parameters:
* hList HWND List into which item is to be added
* fInsertFirst BOOL Insert in the beginning of the list?
* nPasteEntriesIndex int Index of Paste Entry array this list item corresponsds to
* lpPS Paste Special Dialog Structure
* lpszBuf LPSTR Scratch buffer to build up string for list entry
* lpszFullUserTypeName LPSTR full user type name for object entry
*
* Return Value:
* BOOL TRUE if sucessful.
* FALSE if unsucessful.
*/
BOOL FAddPasteListItem(
HWND hList, BOOL fInsertFirst, int nPasteEntriesIndex,
LPPASTESPECIAL lpPS, LPTSTR lpszBuf, LPTSTR lpszFullUserTypeName)
{
LPOLEUIPASTESPECIAL lpOPS = lpPS->lpOPS;
LPPASTELISTITEMDATA lpItemData;
int nIndex;
// Allocate memory for each list box item
lpItemData = (LPPASTELISTITEMDATA)OleStdMalloc(sizeof(PASTELISTITEMDATA));
if (NULL == lpItemData)
return FALSE;
// Fill data associated with each list box item
lpItemData->nPasteEntriesIndex = nPasteEntriesIndex;
lpItemData->fCntrEnableIcon = ((lpOPS->arrPasteEntries[nPasteEntriesIndex].dwFlags &
OLEUIPASTE_ENABLEICON) ? TRUE : FALSE);
// Build list box entry string, insert the string and add the data the corresponds to it
wsprintf(
lpszBuf,
lpOPS->arrPasteEntries[nPasteEntriesIndex].lpstrFormatName,
lpszFullUserTypeName
);
// only add to listbox if not a duplicate
if (LB_ERR!=SendMessage(hList,LB_FINDSTRING, 0, (LPARAM)lpszBuf))
{
// item is already in list; SKIP this one
OleStdFree((LPVOID)lpItemData);
return TRUE; // this is NOT an error
}
nIndex = (int)SendMessage(
hList,
(fInsertFirst ? LB_INSERTSTRING : LB_ADDSTRING),
0,
(LPARAM)lpszBuf
);
SendMessage(
hList,
LB_SETITEMDATA,
nIndex,
(LPARAM)(LPPASTELISTITEMDATA)lpItemData
);
return TRUE;
}
/*
* FFillPasteList
*
* Purpose:
* Fills the invisible paste list with the formats offered by the clipboard object and
* asked for by the container.
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
*
* Return Value:
* BOOL TRUE if sucessful and if formats could be found.
* FALSE if unsucessful or if no formats could be found.
*/
BOOL FFillPasteList(HWND hDlg, LPPASTESPECIAL lpPS)
{
LPOLEUIPASTESPECIAL lpOPS = lpPS->lpOPS;
HWND hList;
int i, j;
int nItems = 0;
int nDefFormat = -1;
BOOL fTryObjFmt = FALSE;
BOOL fInsertFirst;
BOOL fExclude;
hList = GetDlgItem(hDlg, IDC_PS_PASTELIST);
SendMessage(hList, LB_RESETCONTENT, 0, 0);
// Loop over the target's priority list of formats
for (i = 0; i < lpOPS->cPasteEntries; i++)
{
if (lpOPS->arrPasteEntries[i].dwFlags != OLEUIPASTE_PASTEONLY &&
!(lpOPS->arrPasteEntries[i].dwFlags & OLEUIPASTE_PASTE))
continue;
fInsertFirst = FALSE;
if (lpOPS->arrPasteEntries[i].fmtetc.cfFormat == _g_cfFileName
|| lpOPS->arrPasteEntries[i].fmtetc.cfFormat == _g_cfEmbeddedObject
|| lpOPS->arrPasteEntries[i].fmtetc.cfFormat == _g_cfEmbedSource)
{
if (! fTryObjFmt)
{
fTryObjFmt = TRUE; // only use 1st object format
fInsertFirst = TRUE; // OLE obj format should always be 1st
//Check if this CLSID is in the exclusion list.
fExclude=FALSE;
for (j=0; j < (int)lpOPS->cClsidExclude; j++)
{
if (IsEqualCLSID(lpPS->clsidOD, lpOPS->lpClsidExclude[j]))
{
fExclude=TRUE;
break;
}
}
if (fExclude)
continue; // don't add the object entry to list
}
else
{
continue; // already added an object format to list
}
}
// add to list if entry is marked TRUE
if (lpOPS->arrPasteEntries[i].dwScratchSpace)
{
if (nDefFormat < 0)
nDefFormat = (fInsertFirst ? 0 : nItems);
else if (fInsertFirst)
nDefFormat++; // adjust for obj fmt inserted 1st in list
LPTSTR lpszBuf = (LPTSTR)GlobalLock(lpPS->hBuff);
if (lpszBuf)
{
if (!FAddPasteListItem(hList, fInsertFirst, i, lpPS,
lpszBuf, lpPS->szFullUserTypeNameOD))
{
GlobalUnlock(lpPS->hBuff);
goto error;
}
GlobalUnlock(lpPS->hBuff);
}
nItems++;
}
}
// initialize selection to first format matched in list
if (nDefFormat >= 0)
lpPS->nPasteListCurSel = nDefFormat;
// Clean up
// If no items have been added to the list box (none of the formats
// offered by the source matched those acceptable to the container),
// return FALSE
if (nItems > 0)
return TRUE;
else
return FALSE;
error:
FreeListData(hList);
return FALSE;
}
/*
* FFillPasteLinkList
*
* Purpose:
* Fills the invisible paste link list with the formats offered by the clipboard object and
* asked for by the container.
*
* Parameters:
* hDlg HWND of the dialog
* lpPS Paste Special Dialog Structure
*
* Return Value:
* BOOL TRUE if sucessful and if formats could be found.
* FALSE if unsucessful or if no formats could be found.
*/
BOOL FFillPasteLinkList(HWND hDlg, LPPASTESPECIAL lpPS)
{
LPOLEUIPASTESPECIAL lpOPS = lpPS->lpOPS;
LPDATAOBJECT lpSrcDataObj = lpOPS->lpSrcDataObj;
LPENUMFORMATETC lpEnumFmtEtc = NULL;
OLEUIPASTEFLAG pasteFlag;
UINT arrLinkTypesSupported[PS_MAXLINKTYPES]; // Array of flags that
// indicate which link types
// are supported by source.
FORMATETC fmtetc;
int i, j;
int nItems = 0;
BOOL fLinkTypeSupported = FALSE;
HWND hList;
int nDefFormat = -1;
BOOL fTryObjFmt = FALSE;
BOOL fInsertFirst;
HRESULT hrErr;
// Remember which link type formats are offered by lpSrcDataObj.
memset(&fmtetc, 0, sizeof(FORMATETC));
for (i = 0; i < lpOPS->cLinkTypes; i++)
{
if (lpOPS->arrLinkTypes[i] == _g_cfLinkSource)
{
OLEDBG_BEGIN2(TEXT("OleQueryLinkFromData called\r\n"))
hrErr = OleQueryLinkFromData(lpSrcDataObj);
OLEDBG_END2
if(NOERROR == hrErr)
{
arrLinkTypesSupported[i] = 1;
fLinkTypeSupported = TRUE;
}
else
arrLinkTypesSupported[i] = 0;
}
else
{
fmtetc.cfFormat = (CLIPFORMAT)lpOPS->arrLinkTypes[i];
fmtetc.dwAspect = DVASPECT_CONTENT;
fmtetc.tymed = 0xFFFFFFFF; // All tymed values
fmtetc.lindex = -1;
OLEDBG_BEGIN2(TEXT("IDataObject::QueryGetData called\r\n"))
hrErr = lpSrcDataObj->QueryGetData(&fmtetc);
OLEDBG_END2
if(NOERROR == hrErr)
{
arrLinkTypesSupported[i] = 1;
fLinkTypeSupported = TRUE;
}
else arrLinkTypesSupported[i] = 0;
}
}
// No link types are offered by lpSrcDataObj
if (! fLinkTypeSupported)
{
nItems = 0;
goto cleanup;
}
hList = GetDlgItem(hDlg, IDC_PS_PASTELINKLIST);
SendMessage(hList, LB_RESETCONTENT, 0, 0);
// Enumerate the formats acceptable to container
for (i = 0; i < lpOPS->cPasteEntries; i++)
{
fLinkTypeSupported = FALSE;
// If container will accept any link type offered by source object
if (lpOPS->arrPasteEntries[i].dwFlags & OLEUIPASTE_LINKANYTYPE)
fLinkTypeSupported = TRUE;
else
{
// Check if any of the link types offered by the source
// object are acceptable to the container
// This code depends on the LINKTYPE enum values being powers of 2
for (pasteFlag = OLEUIPASTE_LINKTYPE1, j = 0;
j < lpOPS->cLinkTypes;
(UINT&)pasteFlag *= 2, j++)
{
if ((lpOPS->arrPasteEntries[i].dwFlags & pasteFlag) &&
arrLinkTypesSupported[j])
{
fLinkTypeSupported = TRUE;
break;
}
}
}
fInsertFirst = FALSE;
if (lpOPS->arrPasteEntries[i].fmtetc.cfFormat == _g_cfFileName
|| lpOPS->arrPasteEntries[i].fmtetc.cfFormat == _g_cfLinkSource)
{
if (! fTryObjFmt)
{
fTryObjFmt = TRUE; // only use 1st object format
fInsertFirst = TRUE; // OLE obj format should always be 1st
}
else
{
continue; // already added an object format to list
}
}
// add to list if entry is marked TRUE
if (fLinkTypeSupported && lpOPS->arrPasteEntries[i].dwScratchSpace)
{
if (nDefFormat < 0)
nDefFormat = (fInsertFirst ? 0 : nItems);
else if (fInsertFirst)
nDefFormat++; // adjust for obj fmt inserted 1st in list
LPTSTR lpszBuf = (LPTSTR)GlobalLock(lpPS->hBuff);
if (lpszBuf)
{
if (!FAddPasteListItem(hList, fInsertFirst, i, lpPS,
lpszBuf, lpPS->szFullUserTypeNameLSD))
{
GlobalUnlock(lpPS->hBuff);
goto error;
}
GlobalUnlock(lpPS->hBuff);
}
nItems++;
}
} // end FOR
nItems = (int)SendMessage(hList, LB_GETCOUNT, 0, 0L);
// initialize selection to first format matched in list
if (nDefFormat >= 0)
lpPS->nPasteLinkListCurSel = nDefFormat;
cleanup:
// Clean up
// If no items have been added to the list box (none of the formats
// offered by the source matched those acceptable to the destination),
// return FALSE
if (nItems > 0)
return TRUE;
else
return FALSE;
error:
FreeListData(hList);
return FALSE;
}
/*
* FreeListData
*
* Purpose:
* Free the local memory associated with each list box item
*
* Parameters:
* hList HWND of the list
*
* Return Value:
* None
*/
void FreeListData(HWND hList)
{
int nItems, i;
LPPASTELISTITEMDATA lpItemData;
nItems = (int) SendMessage(hList, LB_GETCOUNT, 0, 0L);
for (i = 0; i < nItems; i++)
{
lpItemData = (LPPASTELISTITEMDATA)SendMessage(hList, LB_GETITEMDATA, (WPARAM)i, 0L);
if ((LRESULT)lpItemData != LB_ERR)
OleStdFree((LPVOID)lpItemData);
}
}
/*
* FHasPercentS
*
* Purpose:
* Determines if string contains %s.
*
* Parameters:
* lpsz LPCSTR string in which occurence of '%s' is looked for
*
* Return Value:
* BOOL TRUE if %s is found, else FALSE.
*/
BOOL FHasPercentS(LPCTSTR lpsz, LPPASTESPECIAL lpPS)
{
int n = 0;
LPTSTR lpszTmp;
if (!lpsz) return FALSE;
// Copy input string to buffer. This allows caller to pass a
// code-based string. Code segments may be swapped out in low memory situations
// and so code-based strings need to be copied before string elements can be accessed.
lpszTmp = (LPTSTR)GlobalLock(lpPS->hBuff);
lstrcpy(lpszTmp, lpsz);
while (*lpszTmp)
{
if (*lpszTmp == '%')
{
lpszTmp = CharNext(lpszTmp);
if (*lpszTmp == 's') // if %s, return
{
GlobalUnlock(lpPS->hBuff);
return TRUE;
}
else if (*lpszTmp == '%') // if %%, skip to next character
lpszTmp = CharNext(lpszTmp);
}
else
lpszTmp = CharNext(lpszTmp);
}
GlobalUnlock(lpPS->hBuff);
return FALSE;
}
/*
* AllocateScratchMem
*
* Purpose:
* Allocates scratch memory for use by the PasteSpecial dialog. The memory is
* is used as the buffer for building up strings using wsprintf. Strings are built up
* using the buffer while inserting items into the Paste & PasteLink lists and while
* setting the help result text. It must be big enough to handle the string that results after
* replacing the %s in the lpstrFormatName and lpstrResultText in arrPasteEntries[]
* by the FullUserTypeName. It must also be big enough to build the dialog's result text
* after %s substitutions by the FullUserTypeName or the ApplicationName.
*
* Parameters:
* lpPS Paste Special Dialog Structure
*
* Return Value:
* HGLOBAL Handle to allocated global memory
*/
HGLOBAL AllocateScratchMem(LPPASTESPECIAL lpPS)
{
LPOLEUIPASTESPECIAL lpOPS = lpPS->lpOPS;
int nLen, i;
int nSubstitutedText = 0;
int nAlloc = 0;
// Get the maximum length of the FullUserTypeNames specified by OBJECTDESCRIPTOR
// and the LINKSRCDESCRIPTOR and the Application Name. Any of these may be substituted
// for %s in the result-text/list entries.
if (lpPS->szFullUserTypeNameOD)
nSubstitutedText = lstrlen(lpPS->szFullUserTypeNameOD);
if (lpPS->szFullUserTypeNameLSD)
nSubstitutedText = __max(nSubstitutedText, lstrlen(lpPS->szFullUserTypeNameLSD));
if (lpPS->szAppName)
nSubstitutedText = __max(nSubstitutedText, lstrlen(lpPS->szAppName));
// Get the maximum length of lpstrFormatNames & lpstrResultText in arrPasteEntries
nLen = 0;
for (i = 0; i < lpOPS->cPasteEntries; i++)
{
nLen = max(nLen, lstrlen(lpOPS->arrPasteEntries[i].lpstrFormatName));
nLen = max(nLen, lstrlen(lpOPS->arrPasteEntries[i].lpstrResultText));
}
// Get the maximum length of lpstrFormatNames and lpstrResultText after %s has
// been substituted (At most one %s can appear in each string).
// Add 1 to hold NULL terminator.
nAlloc = (nLen+nSubstitutedText+1)*sizeof(TCHAR);
// Allocate scratch memory to be used to build strings
// nAlloc is big enough to hold any of the lpstrResultText or lpstrFormatName in arrPasteEntries[]
// after %s substitution.
// We also need space to build up the help result text. 512 is the maximum length of the
// standard dialog help text before substitutions. 512+nAlloc is the maximum length
// after %s substition.
// SetPasteSpecialHelpResults() requires 4 such buffers to build up the result text
return GlobalAlloc(GHND, (DWORD)4*(512 * sizeof(TCHAR) + nAlloc));
}
Reference in a new issue Copy permalink