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windows-nt/Source/XPSP1/NT/multimedia/media/mmcaps2k/mmcaps.c

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//==========================================================================;
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
// TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR
// A PARTICULAR PURPOSE.
//
// Copyright (C) 1993 - 1997 Microsoft Corporation. All Rights Reserved.
//
//--------------------------------------------------------------------------;
//
// mmcaps.c
//
// Description:
//
//
// History:
// 11/ 8/92
//
//==========================================================================;
#include <windows.h>
#include <windowsx.h>
#include <mmsystem.h>
#include <commdlg.h>
#include <stdarg.h>
#include "appport.h"
#include "mmcaps.h"
#include "debug.h"
//
// globals, no less
//
HINSTANCE ghinst;
TCHAR gszAppSection[] = TEXT("MMCaps");
TCHAR gszNull[] = TEXT("");
TCHAR gszAppName[APP_MAX_APP_NAME_CHARS];
//
//
//
PZYZTABBEDLISTBOX gptlbDrivers;
TCHAR gszUnknown[] = TEXT("Unknown");
TCHAR gszNotSpecified[] = TEXT("Not Specified");
UINT guDriverType = MMCAPS_DRIVERTYPE_LOWLEVEL;
//==========================================================================;
//
// Application helper functions
//
//
//==========================================================================;
//--------------------------------------------------------------------------;
//
// BOOL AppProfileWriteBytes
//
// Description:
// This function writes a raw structure of bytes to the application's
// ini section that can later be retrieved using AppProfileReadBytes.
// This gives an application the ability to write any structure to
// the ini file and restore it later--very useful.
//
// NOTE! Starting with Windows for Workgroups 3.1 there are two new
// profile functions that provide the same functionality of this
// function. Specifically, these functions are GetPrivateProfileStruct
// and WritePrivateProfileStruct. These new functions are provided
// by the Common Controls DLL. The prototypes are as follows:
//
// BOOL GetPrivateProfileStruct
// (
// LPSTR szSection,
// LPSTR szKey,
// LPBYTE lpStruct,
// UINT uSizeStruct,
// LPSTR szFile
// );
//
// BOOL WritePrivateProfileStruct
// (
// LPSTR szSection,
// LPSTR szKey,
// LPBYTE lpStruct,
// UINT uSizeStruct,
// LPSTR szFile
// );
//
// If you are building an application that is for Window for Workgroups
// or newer versions of Windows, you will probably want to use the
// above functions.
//
// Arguments:
// PCTSTR pszKey: Pointer to key name for the stored data.
//
// LPBYTE pbStruct: Pointer to the data to be saved.
//
// UINT cbStruct: Count in bytes of the data to store.
//
// Return (BOOL):
// The return value is TRUE if the function is successful. It is FALSE
// if it fails.
//
// History:
// 3/10/93
//
//--------------------------------------------------------------------------;
BOOL FNGLOBAL AppProfileWriteBytes
(
PCTSTR pszKey,
LPBYTE pbStruct,
UINT cbStruct
)
{
static TCHAR achNibbleToChar[] =
{
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
};
#define NIBBLE2CHAR(x) (achNibbleToChar[x])
TCHAR ach[APP_MAX_STRING_RC_CHARS];
LPTSTR psz;
LPTSTR pch;
UINT cchTemp;
BOOL fAllocated;
BOOL fReturn;
BYTE b;
BYTE bChecksum;
//
// if pbStruct is NULL, then erase the key from the ini file, otherwise
// format the raw bytes into a hex string and write that out...
//
fAllocated = FALSE;
psz = NULL;
if (NULL != pbStruct)
{
//
// check if the quick buffer can be used for formatting the output
// text--if it cannot, then alloc space for it. note that space
// must be available for an ending checksum byte (2 bytes for high
// and low nibble) as well as a null terminator.
//
psz = (LPTSTR)ach;
cchTemp = cbStruct * 2 + 3;
if (cchTemp > SIZEOF(ach))
{
psz = GlobalAllocPtr(GHND, cchTemp * sizeof(TCHAR));
if (NULL == psz)
return (FALSE);
fAllocated = TRUE;
}
//
// step through all bytes in the structure and convert it to
// a string of hex numbers...
//
bChecksum = 0;
for (pch = psz; 0 != cbStruct; cbStruct--, pbStruct++)
{
//
// grab the next byte and add into checksum...
//
bChecksum += (b = *pbStruct);
*pch++ = NIBBLE2CHAR((b >> (BYTE)4) & (BYTE)0x0F);
*pch++ = NIBBLE2CHAR(b & (BYTE)0x0F);
}
//
// add the checksum byte to the end and null terminate the hex
// dumped string...
//
*pch++ = NIBBLE2CHAR((bChecksum >> (BYTE)4) & (BYTE)0x0F);
*pch++ = NIBBLE2CHAR(bChecksum & (BYTE)0x0F);
*pch = '\0';
}
//
// write the string of hex bytes out to the ini file...
//
fReturn = WriteProfileString(gszAppSection, pszKey, psz);
//
// free the temporary buffer if one was allocated (lots of bytes!)
//
if (fAllocated)
GlobalFreePtr(psz);
return (fReturn);
} // AppProfileWriteBytes
//--------------------------------------------------------------------------;
//
// BOOL AppProfileReadBytes
//
// Description:
// This function reads a previously stored structure of bytes from
// the application's ini file. This data must have been written with
// the AppProfileWriteBytes function--it is checksumed to keep bad
// data from blowing up the application.
//
// NOTE! Starting with Windows for Workgroups 3.1 there are two new
// profile functions that provide the same functionality of this
// function. Specifically, these functions are GetPrivateProfileStruct
// and WritePrivateProfileStruct. These new functions are provided
// by the Common Controls DLL. The prototypes are as follows:
//
// BOOL GetPrivateProfileStruct
// (
// LPSTR szSection,
// LPSTR szKey,
// LPBYTE lpStruct,
// UINT uSizeStruct,
// LPSTR szFile
// );
//
// BOOL WritePrivateProfileStruct
// (
// LPSTR szSection,
// LPSTR szKey,
// LPBYTE lpStruct,
// UINT uSizeStruct,
// LPSTR szFile
// );
//
// If you are building an application that is for Window for Workgroups
// or newer versions of Windows, you will probably want to use the
// above functions.
//
// Arguments:
// PCTSTR pszKey: Pointer to key that contains the data.
//
// LPBYTE pbStruct: Pointer to buffer to receive the data.
//
// UINT cbStruct: Number of bytes expected.
//
// Return (BOOL):
// The return value is TRUE if the function is successful. It is FALSE
// if the function fails (bad checksum, missing key, etc).
//
// History:
// 3/10/93
//
//--------------------------------------------------------------------------;
BOOL FNGLOBAL AppProfileReadBytes
(
PCTSTR pszKey,
LPBYTE pbStruct,
UINT cbStruct
)
{
//
// note that the following works for both upper and lower case, and
// will return valid values for garbage chars
//
#define CHAR2NIBBLE(ch) (BYTE)( ((ch) >= '0' && (ch) <= '9') ? \
(BYTE)((ch) - '0') : \
((BYTE)(10 + (ch) - 'A') & (BYTE)0x0F) )
TCHAR ach[APP_MAX_STRING_RC_CHARS];
LPTSTR psz;
LPTSTR pch;
UINT cchTemp;
UINT u;
BOOL fAllocated;
BOOL fReturn;
BYTE b;
BYTE bChecksum;
TCHAR ch;
//
// add one the the number of bytes needed to accomodate the checksum
// byte placed at the end by AppProfileWriteBytes...
//
cbStruct++;
//
// check if the quick buffer can be used for retrieving the input
// text--if it cannot, then alloc space for it. note that there must
// be space available for the null terminator (the +1 below).
//
fAllocated = FALSE;
psz = (LPTSTR)ach;
cchTemp = cbStruct * 2 + 1;
if (cchTemp > SIZEOF(ach))
{
psz = GlobalAllocPtr(GHND, cchTemp * sizeof(TCHAR));
if (NULL == psz)
return (FALSE);
fAllocated = TRUE;
}
//
// read the hex string... if it is not the correct length, then assume
// error and return.
//
fReturn = FALSE;
u = (UINT)GetProfileString(gszAppSection, pszKey, gszNull, psz, cchTemp);
if ((cbStruct * 2) == u)
{
bChecksum = 0;
for (pch = psz; 0 != cbStruct; cbStruct--, pbStruct++)
{
ch = *pch++;
b = CHAR2NIBBLE(ch) << (BYTE)4;
ch = *pch++;
b |= CHAR2NIBBLE(ch);
//
// if this is not the final byte (the checksum byte), then
// store it and accumulate checksum..
//
if (cbStruct != 1)
bChecksum += (*pbStruct = b);
}
//
// check the last byte read against the checksum that we calculated
// if they are not equal then return error...
//
fReturn = (bChecksum == b);
}
//
// free the temporary buffer if one was allocated (lots of bytes!)
//
if (fAllocated)
GlobalFreePtr(psz);
return (fReturn);
} // AppProfileReadBytes
//--------------------------------------------------------------------------;
//
// int AppMsgBox
//
// Description:
// This function displays a message for the application in a standard
// message box.
//
// Note that this function takes any valid argument list that can
// be passed to wsprintf. Because of this, the application must
// remember to cast near string pointers to FAR when built for Win 16.
// You will get a nice GP fault if you do not cast them correctly.
//
// Arguments:
// HWND hwnd: Handle to parent window for message box holding the
// message.
//
// UINT fuStyle: Style flags for MessageBox().
//
// PCTSTR pszFormat: Format string used for wvsprintf().
//
// Return (int):
// The return value is the result of MessageBox() function.
//
// History:
// 2/13/93
//
//--------------------------------------------------------------------------;
int FNCGLOBAL AppMsgBox
(
HWND hwnd,
UINT fuStyle,
PCTSTR pszFormat,
...
)
{
va_list va;
TCHAR ach[APP_MAX_STRING_ERROR_CHARS];
int n;
//
// format and display the message..
//
va_start(va, pszFormat);
wvsprintf(ach, pszFormat, va);
va_end(va);
n = MessageBox(hwnd, ach, gszAppName, fuStyle);
return (n);
} // AppMsgBox()
//--------------------------------------------------------------------------;
//
// int AppMsgBoxId
//
// Description:
// This function displays a message for the application. The message
// text is retrieved from the string resource table using LoadString.
//
// Note that this function takes any valid argument list that can
// be passed to wsprintf. Because of this, the application must
// remember to cast near string pointers to FAR when built for Win 16.
// You will get a nice GP fault if you do not cast them correctly.
//
// Arguments:
// HWND hwnd: Handle to parent window for message box holding the
// message.
//
// UINT fuStyle: Style flags for MessageBox().
//
// UINT uIdsFormat: String resource id to be loaded with LoadString()
// and used a the format string for wvsprintf().
//
// Return (int):
// The return value is the result of MessageBox() if the string
// resource specified by uIdsFormat is valid. The return value is zero
// if the string resource failed to load.
//
// History:
// 2/13/93
//
//--------------------------------------------------------------------------;
int FNCGLOBAL AppMsgBoxId
(
HWND hwnd,
UINT fuStyle,
UINT uIdsFormat,
...
)
{
va_list va;
TCHAR szFormat[APP_MAX_STRING_RC_CHARS];
TCHAR ach[APP_MAX_STRING_ERROR_CHARS];
int n;
n = LoadString(ghinst, uIdsFormat, szFormat, SIZEOF(szFormat));
if (0 != n)
{
//
// format and display the message..
//
va_start(va, uIdsFormat);
wvsprintf(ach, szFormat, va);
va_end(va);
n = MessageBox(hwnd, ach, gszAppName, fuStyle);
}
return (n);
} // AppMsgBoxId()
//--------------------------------------------------------------------------;
//
// void AppHourGlass
//
// Description:
// This function changes the cursor to that of the hour glass or
// back to the previous cursor.
//
// This function can be called recursively.
//
// Arguments:
// BOOL fHourGlass: TRUE if we need the hour glass. FALSE if we need
// the arrow back.
//
// Return (void):
// On return, the cursor will be what was requested.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
void FNGLOBAL AppHourGlass
(
BOOL fHourGlass
)
{
static HCURSOR hcur;
static UINT uWaiting = 0;
if (fHourGlass)
{
if (!uWaiting)
{
hcur = SetCursor(LoadCursor(NULL, IDC_WAIT));
ShowCursor(TRUE);
}
uWaiting++;
}
else
{
--uWaiting;
if (!uWaiting)
{
ShowCursor(FALSE);
SetCursor(hcur);
}
}
} // AppHourGlass()
//--------------------------------------------------------------------------;
//
// int AppDialogBox
//
// Description:
// This function is used to display a dialog modal box.
//
// Arguments:
// HWND hwnd: Handle to parent window for new dialog.
//
// LPCSTR pszDlg: Dialog template to use.
//
// DLGPROC pfnDlg: Pointer to dialog procedure.
//
// LPARAM lParam: Any lParam to be passed as lParam for WM_INITDIALOG.
//
// Return (int):
// The return value is the nResult from EndDialog.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
int FNGLOBAL AppDialogBox
(
HWND hwnd,
LPCTSTR pszDlg,
DLGPROC pfnDlg,
LPARAM lParam
)
{
int nResult;
//
// !!! NT doesn't need this--neither does Win 3.1 with C7/C8 !!!
//
//
nResult = 0;
pfnDlg = (DLGPROC)MakeProcInstance((FARPROC)pfnDlg, ghinst);
if (NULL != pfnDlg)
{
nResult = DialogBoxParam(ghinst, pszDlg, hwnd, pfnDlg, lParam);
FreeProcInstance((FARPROC)pfnDlg);
}
return (nResult);
} // AppDialogBox()
//--------------------------------------------------------------------------;
//
// int AppSetWindowText
//
// Description:
// This function formats a string and sets the specified window text
// to the result.
//
// Arguments:
// HWND hwnd: Handle to window to receive the new text.
//
// PCTSTR pszFormat: Pointer to any valid format for wsprintf.
//
// Return (int):
// The return value is the number of bytes that the resulting window
// text was.
//
// History:
// 2/ 7/93
//
//--------------------------------------------------------------------------;
int FNCGLOBAL AppSetWindowText
(
HWND hwnd,
PCTSTR pszFormat,
...
)
{
va_list va;
TCHAR ach[APP_MAX_STRING_ERROR_CHARS];
int n;
//
// format and display the string in the window...
//
va_start(va, pszFormat);
n = wvsprintf(ach, pszFormat, va);
va_end(va);
SetWindowText(hwnd, ach);
return (n);
} // AppSetWindowText()
//--------------------------------------------------------------------------;
//
// int AppSetWindowTextId
//
// Description:
// This function formats a string and sets the specified window text
// to the result. The format string is extracted from the string
// table using LoadString() on the uIdsFormat argument.
//
// Arguments:
// HWND hwnd: Handle to window to receive the new text.
//
// UINT uIdsFormat: String resource id to be loaded with LoadString()
// and used a the format string for wvsprintf().
//
// Return (int):
// The return value is the number of bytes that the resulting window
// text was. This value is zero if the LoadString() function fails
// for the uIdsFormat argument.
//
// History:
// 2/ 7/93
//
//--------------------------------------------------------------------------;
int FNCGLOBAL AppSetWindowTextId
(
HWND hwnd,
UINT uIdsFormat,
...
)
{
va_list va;
TCHAR szFormat[APP_MAX_STRING_RC_CHARS];
TCHAR ach[APP_MAX_STRING_ERROR_CHARS];
int n;
n = LoadString(ghinst, uIdsFormat, szFormat, SIZEOF(szFormat));
if (0 != n)
{
//
// format and display the string in the window...
//
va_start(va, uIdsFormat);
n = wvsprintf(ach, szFormat, va);
va_end(va);
SetWindowText(hwnd, ach);
}
return (n);
} // AppSetWindowTextId()
//--------------------------------------------------------------------------;
//
// int AppMEditPrintF
//
// Description:
// This function is used to print formatted text into a Multiline
// Edit Control as if it were a standard console display. This is
// a very easy way to display small amounts of text information
// that can be scrolled and copied to the clip-board.
//
// Arguments:
// HWND hedit: Handle to a Multiline Edit control.
//
// PCTSTR pszFormat: Pointer to any valid format for wsprintf. If
// this argument is NULL, then the Multiline Edit Control is cleared
// of all text.
//
// Return (int):
// Returns the number of characters written into the edit control.
//
// History:
// 05/16/93
//
//--------------------------------------------------------------------------;
int FNCGLOBAL AppMEditPrintF
(
HWND hedit,
PCTSTR pszFormat,
...
)
{
va_list va;
TCHAR ach[APP_MAX_STRING_RC_CHARS];
int n;
//
// if the pszFormat argument is NULL, then just clear all text in
// the edit control..
//
if (NULL == pszFormat)
{
SetWindowText(hedit, gszNull);
return (0);
}
//
// format and display the string in the window...
//
va_start(va, pszFormat);
n = wvsprintf(ach, pszFormat, va);
va_end(va);
Edit_SetSel(hedit, (WPARAM)-1, (LPARAM)-1);
Edit_ReplaceSel(hedit, ach);
return (n);
} // AppMEditPrintF()
//--------------------------------------------------------------------------;
//
// DWORD AppGetWindowsVersion
//
// Description:
// This function returns the version of Windows that the application
// is running on plus some platform information.
//
// Arguments:
// PTSTR pach: Options pointer to buffer to receive text string of
// the Windows version and platform.
//
// Return (LRESULT):
// The return value will be the version and platform information of
// the current operating system in the following format:
//
// 0xPPPPMMRR where:
//
// MM : major version of Windows
// RR : minor version (revision) of Windows
// PPPP : the platform the application is running on which
// will be one of the following:
//
// #ifdef WIN32
// the HIWORD() is RESERVED except for the high bit:
// high bit is 0 = Windows NT
// high bit is 1 = Win32s/Windows 3.1
// #else
// 0xMMRR = Major and Minor version of [MS-]DOS
// GetWinFlags() & 0x8000 = Windows on OS/2 (WLO)
// GetWinFlags() & 0x4000 = Windows on Windows NT (WOW)
// #endif
//
// History:
// 2/13/93
//
//--------------------------------------------------------------------------;
LRESULT FNGLOBAL AppGetWindowsVersion
(
PTSTR pszEnvironment,
PTSTR pszPlatform
)
{
BYTE bVerWinMajor;
BYTE bVerWinMinor;
UINT uVerEnv;
DWORD dw;
LRESULT lr;
dw = GetVersion();
//
// massage the version information into something intelligent
//
//
bVerWinMajor = LOBYTE(LOWORD(dw));
bVerWinMinor = HIBYTE(LOWORD(dw));
uVerEnv = HIWORD(dw);
lr = MAKELPARAM(((UINT)bVerWinMajor << 8) | bVerWinMinor, uVerEnv);
//
// if caller wants the environment string version...
//
if (NULL != pszEnvironment)
{
//
//
//
#ifdef WIN32
{
static TCHAR szFormatVersion[] = TEXT("%s Version %u.%.2u");
static TCHAR szEnvWinNT[] = TEXT("Windows NT");
static TCHAR szEnvWin32s[] = TEXT("Win32s");
wsprintf(pszEnvironment, szFormatVersion,
(LPSTR)((0x8000 & uVerEnv) ? szEnvWin32s : szEnvWinNT),
bVerWinMajor, bVerWinMinor);
}
#else
{
#ifndef WF_WINNT
#define WF_CPUR4000 0x0100
#define WF_CPUALPHA21064 0x0200
#define WF_WINNT 0x4000
#define WF_WLO 0x8000
#endif
static TCHAR szFormatSubSys[]= TEXT("Windows Version %u.%.2u (%s%s)\n%s Subsystem, DOS Version %u.%.2u");
static TCHAR szFormatDOS[] = TEXT("Windows Version %u.%.2u (%s%s)\nDOS Version %u.%.2u");
static TCHAR szSubSysWLO[] = TEXT("WLO");
static TCHAR szSubSysWOW[] = TEXT("WOW");
static TCHAR szModeEnhanced[]= TEXT("Enhanced");
static TCHAR szModeStandard[]= TEXT("Standard");
static TCHAR szEnvPaging[] = TEXT(", Paging");
DWORD dwWinFlags;
PTSTR pszMode;
BYTE bVerEnvMajor = HIBYTE(LOWORD(uVerEnv));
BYTE bVerEnvMinor = LOBYTE(LOWORD(uVerEnv));
dwWinFlags = GetWinFlags();
pszMode = (dwWinFlags & WF_ENHANCED) ? szModeEnhanced : szModeStandard;
if (dwWinFlags & (WF_WLO | WF_WINNT))
{
wsprintf(pszEnvironment, szFormatSubSys, bVerWinMajor, bVerWinMinor,
(LPSTR)pszMode,
(LPSTR)((dwWinFlags & WF_PAGING) ? szEnvPaging : gszNull),
(LPSTR)((dwWinFlags & WF_WINNT) ? szSubSysWOW : szSubSysWLO),
bVerEnvMajor, bVerEnvMinor);
}
else
{
wsprintf(pszEnvironment, szFormatDOS, bVerWinMajor, bVerWinMinor,
(LPSTR)pszMode,
(LPSTR)((dwWinFlags & WF_PAGING) ? szEnvPaging : gszNull),
bVerEnvMajor, bVerEnvMinor);
}
}
#endif
}
//
// if caller wants the platform string version...
//
if (NULL != pszPlatform)
{
#ifdef WIN32
{
static TCHAR szFormatPlatform[] = TEXT("%s%u, %u Processor(s)");
static TCHAR szProcessorIntel[] = TEXT("Intel ");
static TCHAR szProcessorMIPS[] = TEXT("MIPS R");
static TCHAR szProcessorAlpha[] = TEXT("DEC Alpha ");
static TCHAR szProcessorDunno[] = TEXT("Dunno zYz");
SYSTEM_INFO sysinfo;
PTSTR pszProcessor;
//
// this is absolutely silly. one would think that the dwOemId member
// would provide something useful like the processor class... but
// no, it doesn't--it is always 0.
//
GetSystemInfo(&sysinfo);
switch (sysinfo.dwProcessorType)
{
case PROCESSOR_INTEL_386:
case PROCESSOR_INTEL_486:
pszProcessor = szProcessorIntel;
break;
case PROCESSOR_MIPS_R4000:
pszProcessor = szProcessorMIPS;
break;
case PROCESSOR_ALPHA_21064:
pszProcessor = szProcessorAlpha;
break;
default:
pszProcessor = szProcessorDunno;
break;
}
//
//
//
wsprintf(pszPlatform, szFormatPlatform, (LPSTR)pszProcessor,
sysinfo.dwProcessorType, sysinfo.dwNumberOfProcessors);
}
#else
{
static TCHAR szPlat286[] = TEXT("80286");
static TCHAR szPlat386[] = TEXT("80386");
static TCHAR szPlat486[] = TEXT("i486");
static TCHAR szPlatR4000[] = TEXT("MIPS R4000, Emulation: ");
static TCHAR szPlatAlpha21064[] = TEXT("Alpha 21064, Emulation: ");
static TCHAR szPlat80x87[] = TEXT(", 80x87");
DWORD dwWinFlags;
dwWinFlags = GetWinFlags();
pszPlatform[0] = '\0';
if (dwWinFlags & (WF_WLO | WF_WINNT))
{
if (dwWinFlags & WF_CPUR4000)
lstrcpy(pszPlatform, szPlatR4000);
else if (dwWinFlags & WF_CPUALPHA21064)
lstrcpy(pszPlatform, szPlatAlpha21064);
}
if (dwWinFlags & WF_CPU286)
lstrcat(pszPlatform, szPlat286);
else if (dwWinFlags & WF_CPU386)
lstrcat(pszPlatform, szPlat386);
else if (dwWinFlags & WF_CPU486)
lstrcat(pszPlatform, szPlat486);
if (dwWinFlags & WF_80x87)
lstrcat(pszPlatform, szPlat80x87);
}
#endif
}
//
// return the result
//
return (lr);
} // AppGetWindowsVersion()
//--------------------------------------------------------------------------;
//
// HFONT AppChooseFont
//
// Description:
// This function is a wrapper for the ChooseFont() common dialog.
// The purpose of this function is to let the user choose a font that
// looks good to them--regardless of how stupid it really looks.
//
// Arguments:
// HWND hwnd: Handle to parent window for chooser dialog.
//
// HFONT hfont: Handle to current font (default for chooser dialog).
//
// PLOGFONT plf: Pointer to optional LOGFONT structure to receive a
// copy of the LOGFONT information for the newly chosen font.
//
// Return (HFONT):
// The return value is the newly chosen font. If no new font was chosen
// then the return value is NULL.
//
// History:
// 2/ 7/93
//
//--------------------------------------------------------------------------;
HFONT FNGLOBAL AppChooseFont
(
HWND hwnd,
HFONT hfont,
PLOGFONT plf
)
{
LOGFONT lf;
CHOOSEFONT cf;
BOOL f;
HFONT hfontNew;
//
// get the font info for the current font...
//
GetObject(hfont, sizeof(LOGFONT), (LPVOID)&lf);
//
// fill in the choosefont structure
//
cf.lStructSize = sizeof(CHOOSEFONT);
cf.hwndOwner = hwnd;
cf.hDC = NULL;
cf.Flags = CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT;
cf.lCustData = 0;
cf.lpfnHook = NULL;
cf.hInstance = NULL;
cf.nFontType = SCREEN_FONTTYPE;
cf.lpLogFont = (LPLOGFONT)&lf;
//
// splash a dialog into the user's face..
//
hfontNew = NULL;
f = ChooseFont(&cf);
if (f)
{
//
// create the new font..
//
hfontNew = CreateFontIndirect(&lf);
if (NULL == hfontNew)
return (NULL);
//
// copy the logfont structure if caller wants it
//
if (NULL != plf)
*plf = lf;
}
//
// return the new font (if one was chosen)
//
return (hfontNew);
} // AppChooseFont()
//==========================================================================;
//
// Misc rarely used application dialogs and stuff...
//
//
//==========================================================================;
//--------------------------------------------------------------------------;
//
// BOOL AboutDlgProc
//
// Description:
// This dialog procedure is used for the ubiquitous about box.
//
// Arguments:
// HWND hwnd: Handle to window.
//
// UINT uMsg: Message being sent to the window.
//
// WPARAM wParam: Specific argument to message.
//
// LPARAM lParam: Specific argument to message.
//
// Return (BOOL):
// The return value is specific to the message that was received. For
// the most part, it is FALSE if this dialog procedure does not handle
// a message.
//
// History:
// 1/ 2/93
//
//--------------------------------------------------------------------------;
BOOL FNEXPORT AboutDlgProc
(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
)
{
HWND hwndT;
PTSTR pach;
UINT u;
switch (uMsg)
{
case WM_INITDIALOG:
//
// display some OS version information
//
//
pach = (PTSTR)LocalAlloc(LPTR, APP_MAX_STRING_RC_BYTES);
if (NULL == pach)
return (TRUE);
AppGetWindowsVersion(pach, NULL);
hwndT = GetDlgItem(hwnd, IDD_ABOUT_VERSION_OS);
SetWindowText(hwndT, pach);
AppGetWindowsVersion(NULL, pach);
hwndT = GetDlgItem(hwnd, IDD_ABOUT_VERSION_PLATFORM);
SetWindowText(hwndT, pach);
wsprintf(pach, "MMREG.H V%u.%.02u",
(_INC_MMREG / 100), (_INC_MMREG % 100));
hwndT = GetDlgItem(hwnd, IDD_ABOUT_VERSION_MMSYSTEM);
SetWindowText(hwndT, pach);
LocalFree((HLOCAL)pach);
//
// return nonzero to set the input focus to the control
// identified by the (hwndFocus = (HWND)wParam) argument.
// a zero return tells the dialog manager that this function
// has set the focus using SetFocus.
//
return (TRUE);
case WM_COMMAND:
u = GET_WM_COMMAND_ID(wParam, lParam);
if ((IDOK == u) || (IDCANCEL == u))
{
EndDialog(hwnd, (IDOK == u));
}
break;
}
return (FALSE);
} // AboutDlgProc()
//==========================================================================;
//
// Initialization and exit code...
//
//
//==========================================================================;
TCHAR gszKeyWindow[] = TEXT("Window");
TCHAR gszKeyFont[] = TEXT("Font");
//--------------------------------------------------------------------------;
//
// BOOL MMCapsChooseFont
//
// Description:
// This function lets the user choose a new font for the script window.
// After a new font is chosen, the font structure is stored to the
// .ini file so it can be restored on the next run of this application.
//
// Arguments:
// HWND hwnd: Handle to main window.
//
// Return (BOOL):
// The return value is TRUE if a new font was chosen. It is FALSE if
// the user canceled the operation.
//
// History:
// 2/ 7/93
//
//--------------------------------------------------------------------------;
BOOL FNGLOBAL MMCapsChooseFont
(
HWND hwnd
)
{
LOGFONT lf;
HWND hlb;
HFONT hfont;
HFONT hfontNew;
hlb = GetDlgItem(hwnd, IDD_APP_LIST_DEVICES);
//
// get the current font and pass it to the choose font dialog
//
hfont = GetWindowFont(gptlbDrivers->hlb);
hfontNew = AppChooseFont(hwnd, hfont, &lf);
if (NULL == hfontNew)
return (FALSE);
//
// select the new font into the script window and delete the old one
//
TlbSetFont(gptlbDrivers, hfontNew, TRUE);
DeleteFont(hfont);
//
// save the complete description of the chosen font so there can be
// no strangness in the font mapping next run. this is overkill, but
// it works...
//
AppProfileWriteBytes(gszKeyFont, (LPBYTE)&lf, sizeof(lf));
return (TRUE);
} // MMCapsChooseFont()
//--------------------------------------------------------------------------;
//
// BOOL MMCapsSettingsRestore
//
// Description:
// This function restores state information for the application. This
// function is called just after the main window is created (it has
// not been ShowWindow()'d). This function will generate the call
// to ShowWindow before returning.
//
// Arguments:
// HWND hwnd: Handle to main window that has just been created but
// not shown.
//
// int nCmdShow: The state that the application window should show as.
//
// Return (BOOL):
// The return value is always TRUE.
//
// History:
// 05/11/93
//
//--------------------------------------------------------------------------;
BOOL FNLOCAL MMCapsSettingsRestore
(
HWND hwnd,
int nCmdShow
)
{
WINDOWPLACEMENT wp;
PRECT prc;
HFONT hfont;
LOGFONT lf;
RECT rc;
POINT pt;
int n;
BOOL f;
//
// restore the user's preferred font.
//
hfont = NULL;
f = AppProfileReadBytes(gszKeyFont, (LPBYTE)&lf, sizeof(lf));
if (f)
{
hfont = CreateFontIndirect(&lf);
}
if (NULL == hfont)
{
hfont = GetStockFont(ANSI_VAR_FONT);
}
TlbSetFont(gptlbDrivers, hfont, TRUE);
//
// grab the stored window position and size from the .ini file...
// there must be four arguments stored or the entry is considered
// invalid.
//
prc = &wp.rcNormalPosition;
f = AppProfileReadBytes(gszKeyWindow, (LPBYTE)prc, sizeof(*prc));
if (f)
{
//
// to make sure the user can always get at the window, check to
// see if the midpoint of the caption is visible--if it is not,
// then default to the default position used when creating the
// window.
//
n = (prc->right - prc->left) / 2;
pt.x = (n + prc->left);
n = GetSystemMetrics(SM_CYCAPTION) / 2 + GetSystemMetrics(SM_CXFRAME);
pt.y = (n + prc->top);
GetWindowRect(GetDesktopWindow(), &rc);
if (PtInRect(&rc, pt))
{
//
// fill out the window placement structure--default the
// maximized and minimized states to default placement by
// getting its current placement.
//
wp.length = sizeof(wp);
GetWindowPlacement(hwnd, &wp);
wp.flags = 0;
wp.showCmd = nCmdShow;
SetWindowPlacement(hwnd, &wp);
return (TRUE);
}
}
//
// show defaulted and succeed
//
ShowWindow(hwnd, nCmdShow);
return (TRUE);
} // MMCapsSettingsRestore()
//--------------------------------------------------------------------------;
//
// BOOL MMCapsSettingsSave
//
// Description:
// This function saves the current state information for the application.
// It is called just before the main window is closed (destroyed); or
// as Windows is exiting (query end session).
//
// Note that this function should not destroy any resources--it can
// be called at any time to save a snapshot of the application state.
//
// Arguments:
// HWND hwnd: Handle to main window that will be destroyed shortly.
//
// Return (BOOL):
// The return value is always TRUE.
//
// History:
// 05/11/93
//
//--------------------------------------------------------------------------;
BOOL FNLOCAL MMCapsSettingsSave
(
HWND hwnd
)
{
WINDOWPLACEMENT wp;
PRECT prc;
BOOL f;
//
// save the current window placement--only store the size and location
// of the restored window. maximized and minimized states should
// remain defaulted on the next invocation of this application.
//
wp.length = sizeof(wp);
f = GetWindowPlacement(hwnd, &wp);
if (f)
{
prc = &wp.rcNormalPosition;
DPF(0, "WindowPlacement: show=%d, minX=%d, minY=%d, maxX=%d, maxY=%d",
wp.showCmd, wp.ptMinPosition.x, wp.ptMinPosition.y,
wp.ptMaxPosition.x, wp.ptMaxPosition.y);
DPF(0, " normX=%d, normY=%d, normW=%d, normH=%d",
prc->left, prc->top, prc->right, prc->bottom);
//
// save the _bounding rectangle_ of the restored window state...
//
AppProfileWriteBytes(gszKeyWindow, (LPBYTE)prc, sizeof(*prc));
}
//
// succeed
//
return (TRUE);
} // MMCapsSettingsSave()
//==========================================================================;
//
//
//
//
//==========================================================================;
//--------------------------------------------------------------------------;
//
// BOOL MMCapsDlgProc
//
// Description:
// This dialog procedure is used to display driver capabilities.
//
// Arguments:
// HWND hwnd: Handle to window.
//
// UINT uMsg: Message being sent to the window.
//
// WPARAM wParam: Specific argument to message.
//
// LPARAM lParam: Specific argument to message.
//
// Return (BOOL):
// The return value is specific to the message that was received. For
// the most part, it is FALSE if this dialog procedure does not handle
// a message.
//
// History:
// 1/ 2/93
//
//--------------------------------------------------------------------------;
BOOL FNEXPORT MMCapsDlgProc
(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
)
{
HWND hedit;
UINT u;
switch (uMsg)
{
case WM_INITDIALOG:
hedit = GetDlgItem(hwnd, IDD_DEVCAPS_EDIT_DETAILS);
SetWindowFont(hedit, GetStockFont(ANSI_FIXED_FONT), FALSE);
//
//
//
switch (guDriverType)
{
case MMCAPS_DRIVERTYPE_LOWLEVEL:
MMCapsDetailLowLevel(hedit, lParam);
break;
#if 0
case MMCAPS_DRIVERTYPE_MCI:
MMCapsDetailMCI(hedit, lParam);
break;
case MMCAPS_DRIVERTYPE_ACM:
MMCapsDetailACM(hedit, lParam);
break;
case MMCAPS_DRIVERTYPE_VIDEO:
MMCapsDetailVideo(hedit, lParam);
break;
#endif
}
//
// return nonzero to set the input focus to the control
// identified by the (hwndFocus = (HWND)wParam) argument.
// a zero return tells the dialog manager that this function
// has set the focus using SetFocus.
//
return (TRUE);
case WM_COMMAND:
u = GET_WM_COMMAND_ID(wParam, lParam);
if ((IDOK == u) || (IDCANCEL == u))
{
EndDialog(hwnd, (IDOK == u));
}
break;
}
return (FALSE);
} // MMCapsDlgProc()
//==========================================================================;
//
//
//
//
//==========================================================================;
//--------------------------------------------------------------------------;
//
// BOOL MMCapsRefreshDriverList
//
// Description:
//
//
// Arguments:
// HWND hwnd: Handle of main window.
//
// Return (BOOL):
//
// History:
// 05/16/93
//
//--------------------------------------------------------------------------;
BOOL FNLOCAL MMCapsRefreshDriverList
(
PZYZTABBEDLISTBOX ptlb
)
{
static UINT uIdPrev = (UINT)-1;
BOOL fComplete;
//
//
//
SetWindowRedraw(ptlb->hlb, FALSE);
ListBox_ResetContent(ptlb->hlb);
//
// only force complete update if the driver type is different from
// previous...
//
fComplete = (guDriverType != uIdPrev);
uIdPrev = guDriverType;
//
//
//
switch (guDriverType)
{
case MMCAPS_DRIVERTYPE_LOWLEVEL:
MMCapsEnumerateLowLevel(ptlb, fComplete);
break;
#if 0
case MMCAPS_DRIVERTYPE_MCI:
MMCapsEnumerateMCI(ptlb, fComplete);
break;
case MMCAPS_DRIVERTYPE_ACM:
MMCapsEnumerateACM(ptlb, fComplete);
break;
case MMCAPS_DRIVERTYPE_VIDEO:
MMCapsEnumerateVideo(ptlb, fComplete);
break;
case MMCAPS_DRIVERTYPE_DRIVERS:
MMCapsEnumerateDrivers(ptlb, fComplete);
break;
#endif
}
//
//
//
SetWindowRedraw(ptlb->hlb, TRUE);
return (TRUE);
} // MMCapsRefreshDriverList()
//==========================================================================;
//
// Main application window handling code...
//
//
//==========================================================================;
//--------------------------------------------------------------------------;
//
// LRESULT AppCreate
//
// Description:
// This function is called to handle the WM_CREATE message for the
// application's window. The application should finish the creation
// of the window (create controls, allocate resources, etc). The
// window has not been displayed (CreateWindow[Ex] has not returned).
//
// Arguments:
// HWND hwnd: Handle to the window that is in the process of being
// created.
//
// LPCREATESTRUCT pcs: Pointer to a CREATESTRUCT that contains info
// about the window being created.
//
// Return (LRESULT):
// The return value should be nonzero if the application wishes to
// let the window finish being created. A return of zero tells
// CreateWindow[Ex] to fail the creation of the window.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
LRESULT FNGLOBAL AppCreate
(
HWND hwnd,
LPCREATESTRUCT pcs
)
{
DPF(0, "AppCreate(hwnd=%Xh, cs.x=%d, cs.y=%d, cs.cx=%d, cs.cy=%d)",
hwnd, pcs->x, pcs->y, pcs->cx, pcs->cy);
//
// create the driver selection listbox
//
gptlbDrivers = TlbCreate(hwnd, IDD_APP_LIST_DEVICES, NULL);
if (NULL == gptlbDrivers)
return (0L);
//
//
//
MMCapsRefreshDriverList(gptlbDrivers);
//
// we want the focus to default to the device listbox window
//
SetFocus(gptlbDrivers->hlb);
//
// return nonzero to succeed the creation of the window
//
return (1L);
} // AppCreate()
//--------------------------------------------------------------------------;
//
// LRESULT AppQueryEndSession
//
// Description:
// This function handles the WM_QUERYENDSESSION. This message is sent
// by USER when ExitWindows has been called to end the Windows session.
// This function can stop Windows from exiting if it is not convenient
// for Windows to end.
//
// Giving the user the option to save modified data before continueing
// with the shutdown of Windows is a good idea.
//
// Telling Windows to continue with the exit procedure does not
// necessarily mean Windows will exit. All applications are queried
// for shutdown approval. When the actual decision is made on whether
// Windows will exit, WM_ENDSESSION will be sent with the result.
//
// Arguments:
// HWND hwnd: Handle to window that received the message.
//
// Return (LRESULT):
// Returns zero to STOP Windows from exiting. Returns non-zero to
// allows windows to shut down.
//
// History:
// 2/ 9/93
//
//--------------------------------------------------------------------------;
LRESULT FNGLOBAL AppQueryEndSession
(
HWND hwnd
)
{
DPF(0, "AppQueryEndSession(hwnd=%Xh)", hwnd);
//
// tell Windows to proceed with the shutdown process!
//
return (1L);
} // AppQueryEndSession()
//--------------------------------------------------------------------------;
//
// LRESULT AppEndSession
//
// Description:
// This function is called to handle the WM_ENDSESSION message. This
// message is generated after the application answers the
// WM_QUERYENDSESSION message. The purpose of the WM_ENDSESSION
// message is to tell the application if Windows will be exiting
// (TRUE == fEndSession) or the end session was canceled by an
// application (FALSE == fEndSession).
//
// Arguments:
// HWND hwnd: Handle to window that received the message.
//
// BOOL fEndSession: TRUE if Windows is exiting. FALSE if the end
// session was canceled.
//
// Return (LRESULT):
// Returns zero if the message is processed. Note that an application
// cannot halt the termination of Windows from this message--the
// WM_QUERYENDSESSION is the only message that allows that behaviour.
// If fEndSession is TRUE, Windows *WILL* exit--whether you like it
// or not.
//
// History:
// 2/ 9/93
//
//--------------------------------------------------------------------------;
LRESULT FNGLOBAL AppEndSession
(
HWND hwnd,
BOOL fEndSession
)
{
DPF(0, "AppEndSession(hwnd=%Xh, fEndSession=%d)", hwnd, fEndSession);
//
// we processed the message, return zero..
//
return (0L);
} // AppEndSession()
//--------------------------------------------------------------------------;
//
// LRESULT AppClose
//
// Description:
// This function handles the WM_CLOSE message for the application.
// If the application should close, DestroyWindow() must be called
// by this function. Otherwise the application will not close.
//
// Arguments:
// HWND hwnd: Handle to window that generated the WM_CLOSE message.
//
// Return (LRESULT):
// There return value is zero. The DestroyWindow function will have
// been called if the application should actually close.
//
// History:
// 2/ 6/93
//
//--------------------------------------------------------------------------;
LRESULT FNGLOBAL AppClose
(
HWND hwnd
)
{
HWND hlb;
HFONT hfont;
DPF(0, "AppClose(hwnd=%Xh)", hwnd);
//
// save any settings that should be saved on app termination...
//
MMCapsSettingsSave(hwnd);
//
// if the Shift key is held down during the close message, then just
// save the current state but don't destroy the window... this is
// useful if the user does not want to exit the app and rerun it
// to make sure the state is saved--just before the user does something
// that may crash Windows or something..
//
if (GetKeyState(VK_SHIFT) < 0)
{
return (0L);
}
//
// destroy the font we are using... before deleting the font, select
// the system font back into the script window so the font won't
// be 'in use' anymore.
//
hlb = GetDlgItem(hwnd, IDD_APP_LIST_DEVICES);
hfont = GetWindowFont(hlb);
SetWindowFont(hlb, NULL, FALSE);
DeleteFont(hfont);
//
// make the window close and terminate the application
//
DestroyWindow(hwnd);
return (0L);
} // AppClose()
//--------------------------------------------------------------------------;
//
// LRESULT AppInitMenuPopup
//
// Description:
// This function handles the WM_INITMENUPOPUP message. This message
// is sent to the window owning the menu that is going to become
// active. This gives an application the ability to modify the menu
// before it is displayed (disable/add items, etc).
//
// Arguments:
// HWND hwnd: Handle to window that generated the WM_INITMENUPOPUP
// message.
//
// HMENU hmenu: Handle to the menu that is to become active.
//
// int nItem: Specifies the zero-based relative position of the menu
// item that invoked the popup menu.
//
// BOOL fSysMenu: Specifies whether the popup menu is a System menu
// (TRUE) or it is not a System menu (FALSE).
//
// Return (LRESULT):
// Returns zero if the message is processed.
//
// History:
// 1/ 2/93
//
//--------------------------------------------------------------------------;
LRESULT FNLOCAL AppInitMenuPopup
(
HWND hwnd,
HMENU hmenu,
int nItem,
BOOL fSysMenu
)
{
UINT u;
DPF(0, "AppInitMenuPopup(hwnd=%Xh, hmenu=%Xh, nItem=%d, fSysMenu=%d)",
hwnd, hmenu, nItem, fSysMenu);
//
// if the system menu is what got hit, succeed immediately... this
// application has no stuff in the system menu.
//
if (fSysMenu)
return (0L);
//
// initialize the menu that is being 'popped up'
//
switch (nItem)
{
case APP_MENU_ITEM_FILE:
break;
case APP_MENU_ITEM_DRIVERS:
for (u = IDM_DRIVERS_LOWLEVEL; u <= IDM_DRIVERS_DRIVERS; u++)
{
UINT uCheck;
uCheck = (u == guDriverType) ? MF_CHECKED : MF_UNCHECKED;
CheckMenuItem(hmenu, u, uCheck);
}
break;
}
//
// we processed the message--return 0...
//
return (0L);
} // AppInitMenuPopup()
//--------------------------------------------------------------------------;
//
// LRESULT AppCommand
//
// Description:
// This function handles the WM_COMMAND message.
//
// Arguments:
// HWND hwnd: Handle to window receiving the WM_COMMAND message.
//
// int nId: Control or menu item identifier.
//
// HWND hwndCtl: Handle of control if the message is from a control.
// This argument is NULL if the message was not generated by a control.
//
// UINT uCode: Notification code. This argument is 1 if the message
// was generated by an accelerator. If the message is from a menu,
// this argument is 0.
//
// Return (LRESULT):
// Returns zero if the message is processed.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
LRESULT FNLOCAL AppCommand
(
HWND hwnd,
int nId,
HWND hwndCtl,
UINT uCode
)
{
int n;
LRESULT lr;
switch (nId)
{
case IDM_FILE_FONT:
MMCapsChooseFont(hwnd);
break;
case IDM_FILE_ABOUT:
AppDialogBox(hwnd, DLG_ABOUT, (DLGPROC)AboutDlgProc, 0L);
break;
case IDM_FILE_EXIT:
FORWARD_WM_CLOSE(hwnd, SendMessage);
break;
case IDM_DRIVERS_LOWLEVEL:
case IDM_DRIVERS_MCI:
case IDM_DRIVERS_ACM:
case IDM_DRIVERS_VIDEO:
case IDM_DRIVERS_DRIVERS:
if ((UINT)nId == guDriverType)
break;
guDriverType = (UINT)nId;
// -- fall through -- //
case IDM_UPDATE:
MMCapsRefreshDriverList(gptlbDrivers);
break;
case IDD_APP_LIST_DEVICES:
switch (uCode)
{
case LBN_SELCHANGE:
break;
case LBN_DBLCLK:
n = ListBox_GetCurSel(hwndCtl);
lr = ListBox_GetItemData(hwndCtl, n);
AppDialogBox(hwnd, DLG_DEVCAPS, (DLGPROC)MMCapsDlgProc, lr);
break;
}
break;
}
return (0L);
} // AppCommand()
//--------------------------------------------------------------------------;
//
// LRESULT AppSize
//
// Description:
// This function handles the WM_SIZE message for the application's
// window. This message is sent to the application window after the
// size has changed (but before it is painted).
//
// Arguments:
// HWND hwnd: Handle to window that generated the WM_SIZE message.
//
// UINT fuSizeType: Specifies the type of resizing requested. This
// argument is one of the following: SIZE_MAXIMIZED, SIZE_MINIMIZED,
// SIZE_RESTORED, SIZE_MAXHIDE, or SIZE_MAXSHOW.
//
// int nWidth: Width of the new client area for the window.
//
// int nHeight: Height of the new client area for the window.
//
// Return (LRESULT):
// Returns zero if the application processes the message.
//
// History:
// 2/ 5/93
//
//--------------------------------------------------------------------------;
LRESULT FNLOCAL AppSize
(
HWND hwnd,
UINT fuSizeType,
int nWidth,
int nHeight
)
{
RECT rc;
DPF(0, "AppSize(hwnd=%Xh, fuSizeType=%u, nWidth=%d, nHeight=%d)",
hwnd, fuSizeType, nWidth, nHeight);
//
// unless this application is the one being resized then don't waste
// time computing stuff that doesn't matter. this applies to being
// minimized also because this application does not have a custom
// minimized state.
//
if ((SIZE_RESTORED != fuSizeType) && (SIZE_MAXIMIZED != fuSizeType))
return (0L);
//
// size the devices listbox to be the total size of the client area--
// inflate the rect by one so borders are not visible. note that
// we need to leave room at the top for the title text which is one
// line of text in height...
//
GetClientRect(hwnd, &rc);
InflateRect(&rc, 1, 1);
TlbMove(gptlbDrivers, &rc, FALSE);
//
// we processed the message..
//
return (0L);
} // AppSize()
//--------------------------------------------------------------------------;
//
// LRESULT AppPaint
//
// Description:
//
//
// Arguments:
// HWND hwnd:
//
// Return (LRESULT):
//
// History:
// 05/11/93
//
//--------------------------------------------------------------------------;
LRESULT FNLOCAL AppPaint
(
HWND hwnd
)
{
PAINTSTRUCT ps;
//
//
//
BeginPaint(hwnd, &ps);
TlbPaint(gptlbDrivers, hwnd, ps.hdc);
EndPaint(hwnd, &ps);
//
// we processed the message
//
return (0L);
} // AppPaint()
//--------------------------------------------------------------------------;
//
// LRESULT AppWndProc
//
// Description:
// This is the main application window procedure.
//
// Arguments:
// HWND hwnd: Handle to window.
//
// UINT uMsg: Message being sent to the window.
//
// WPARAM wParam: Specific argument to message.
//
// LPARAM lParam: Specific argument to message.
//
// Return (LRESULT):
// The return value depends on the message that is being processed.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
LRESULT FNEXPORT AppWndProc
(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
)
{
static UINT umsgWinmmDeviceChange = 0;
LRESULT lr;
if (0 == umsgWinmmDeviceChange) {
umsgWinmmDeviceChange = RegisterWindowMessage(TEXT("winmm_devicechange"));
}
if ((uMsg == umsgWinmmDeviceChange) && gptlbDrivers) MMCapsRefreshDriverList(gptlbDrivers);
switch (uMsg)
{
case WM_CREATE:
lr = HANDLE_WM_CREATE(hwnd, wParam, lParam, AppCreate);
return (lr);
case WM_INITMENUPOPUP:
HANDLE_WM_INITMENUPOPUP(hwnd, wParam, lParam, AppInitMenuPopup);
return (0L);
case WM_COMMAND:
lr = HANDLE_WM_COMMAND(hwnd, wParam, lParam, AppCommand);
return (lr);
case WM_SIZE:
//
// handle what we want for sizing, and then always call the
// default handler...
//
HANDLE_WM_SIZE(hwnd, wParam, lParam, AppSize);
break;
case WM_PAINT:
HANDLE_WM_PAINT(hwnd, wParam, lParam, AppPaint);
break;
case WM_QUERYENDSESSION:
lr = HANDLE_WM_QUERYENDSESSION(hwnd, wParam, lParam, AppQueryEndSession);
return (lr);
case WM_ENDSESSION:
HANDLE_WM_ENDSESSION(hwnd, wParam, lParam, AppEndSession);
return (0L);
case WM_CLOSE:
HANDLE_WM_CLOSE(hwnd, wParam, lParam, AppClose);
return (0L);
case WM_DESTROY:
PostQuitMessage(0);
return (0L);
}
return (DefWindowProc(hwnd, uMsg, wParam, lParam));
} // AppWndProc()
//==========================================================================;
//
//
//
//
//==========================================================================;
//--------------------------------------------------------------------------;
//
// BOOL AppInit
//
// Description:
// This function is called to initialize a new instance of the
// application. We want to parse our command line, create our window,
// allocate resources, etc.
//
// The arguments passed to this function are exactly the same as
// those passed to WinMain.
//
// Arguments:
// HINSTANCE hinst: Identifies the current instance of the
// application.
//
// HINSTANCE hinstPrev: Identifies the previous instance of the
// application (NULL if first instance). For Win 32, this argument
// is _always_ NULL.
//
// LPTSTR pszCmdLine: Points to null-terminated unparsed command line.
// If the application is compiled for Unicode, then this argument is
// ignored.
//
// int nCmdShow: How the main window for the application is to be
// shown by default.
//
// Return (HWND):
// Returns the newly created handle to the applications main window.
// This handle is NULL if something went wrong and tells the application
// to exit immediately.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
HWND FNGLOBAL AppInit
(
HINSTANCE hinst,
HINSTANCE hinstPrev,
LPTSTR pszCmdLine,
int nCmdShow
)
{
LRESULT FNEXPORT AppWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
HWND hwnd;
WNDCLASS wc;
DPF(0, "AppInit(hinst=%Xh, hinstPrev=%Xh, pszCmdLine='%s', nCmdShow=%d)",
hinst, hinstPrev, pszCmdLine, nCmdShow);
LoadString(hinst, IDS_APP_NAME, gszAppName, SIZEOF(gszAppName));
//
// determine whether a new window class needs to be registered for
// this application. for Win 16, this only needs to be done for the
// first instance of the application created. for Win 32, this must
// be done for EVERY instance of the application.
//
if (NULL == hinstPrev)
{
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = (WNDPROC)AppWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hinst;
wc.hIcon = LoadIcon(hinst, ICON_APP);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.lpszMenuName = MENU_APP;
wc.lpszClassName = gszAppName;
if (!RegisterClass(&wc)) {
return (NULL);
}
}
//
// create the application's main window
//
// style bits available:
// WS_EX_ACCEPTFILES : will receive WM_DROPFILES messages
// WS_EX_DLGMODALFRAME : creates window with double border
// WS_EX_NOPARENTNOTIFY: won't receive WM_PARENTNOTIFY messages
// WS_EX_TOPMOST : puts window in topmost space
// WS_EX_TRANSPARENT : a very bizarre style indeed (Win 16 only)
//
hwnd = CreateWindowEx(WS_EX_NOPARENTNOTIFY,
gszAppName,
gszAppName,
WS_OVERLAPPEDWINDOW,
APP_WINDOW_XOFFSET,
APP_WINDOW_YOFFSET,
APP_WINDOW_WIDTH,
APP_WINDOW_HEIGHT,
NULL,
NULL,
hinst,
NULL);
if (NULL == hwnd)
return (NULL);
#ifdef UNICODE
//
// the application--which is different than the pszCmdLine argument
// passed through WinMain()...
//
// so, skip over the command name to get to the argument string
//
pszCmdLine = GetCommandLine();
if (NULL != pszCmdLine)
{
while (('\0' != *pszCmdLine) && (' ' != *pszCmdLine++))
;
}
#endif
//
//
//
//
MMCapsSettingsRestore(hwnd, nCmdShow);
//
// finally, get the window displayed and return success
//
// the ShowWindow call is made during MMCapsInit
//
// ShowWindow(hwnd, nCmdShow);
// UpdateWindow(hwnd);
return (hwnd);
} // AppInit()
//--------------------------------------------------------------------------;
//
// int AppExit
//
// Description:
// This function is called just before the application exits from
// WinMain. Its purpose is to clean up any resources that were allocated
// for running the application: brushes, heaps, etc..
//
// Arguments:
// HINSTANCE hinst: Identifies the current instance of the
// application that is exiting.
//
// int nResult: The result of the WM_QUIT message (in wParam of the
// MSG structure. This argument will usually be 0 (even if the message
// loop was never entered).
//
// Return (int):
// The return value is usually nResult--be we give this function the
// opportunity to modify its value.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
int FNGLOBAL AppExit
(
HINSTANCE hinst,
int nResult
)
{
DPF(0, "AppExit(hinst=%Xh, nResult=%d)", hinst, nResult);
//
//
//
//
return (nResult);
} // AppExit()
//==========================================================================;
//
// Main entry and message dispatching code
//
//
//==========================================================================;
//--------------------------------------------------------------------------;
//
// int WinMain
//
// Description:
// This function is called by the system as the initial entry point
// for a Windows application.
//
// Arguments:
// HINSTANCE hinst: Identifies the current instance of the
// application.
//
// HINSTANCE hinstPrev: Identifies the previous instance of the
// application (NULL if first instance). For Win 32, this argument
// is _always_ NULL.
//
// LPSTR pszCmdLine: Points to null-terminated unparsed command line.
// This string is strictly ANSI regardless of whether the application
// is built for Unicode. To get the Unicode equivalent call the
// GetCommandLine() function (Win 32 only).
//
// int nCmdShow: How the main window for the application is to be
// shown by default.
//
// Return (int):
// Returns result from WM_QUIT message (in wParam of MSG structure) if
// the application is able to enter its message loop. Returns 0 if
// the application is not able to enter its message loop.
//
// History:
// 11/ 8/92
//
//--------------------------------------------------------------------------;
int PASCAL WinMain
(
HINSTANCE hinst,
HINSTANCE hinstPrev,
LPSTR pszCmdLine,
int nCmdShow
)
{
int nResult;
HWND hwnd;
MSG msg;
HACCEL haccl;
//
// our documentation states that WinMain is supposed to return 0 if
// we do not enter our message loop--so assume the worst...
//
nResult = 0;
//
// make our instance handle global for convenience..
//
ghinst = hinst;
//
// init some stuff, create window, etc.. note the explicit cast of
// pszCmdLine--this is to mute a warning (and an ugly ifdef) when
// compiling for Unicode. see AppInit() for more details.
//
hwnd = AppInit(hinst, hinstPrev, (LPTSTR)pszCmdLine, nCmdShow);
if (hwnd)
{
haccl = LoadAccelerators(hinst, ACCEL_APP);
//
// dispatch messages
//
while (GetMessage(&msg, NULL, 0, 0))
{
//
// do all the special stuff required for this application
// when dispatching messages..
//
if (!TranslateAccelerator(hwnd, haccl, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
//
// return result of WM_QUIT message.
//
nResult = (int)msg.wParam;
}
//
// shut things down, clean up, etc.
//
nResult = AppExit(hinst, nResult);
return (nResult);
} // WinMain()
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