windows-nt/Source/XPSP1/NT/shell/themes/themeui/fake.cpp

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2020-09-26 03:20:57 -05:00
///////////////////////////////////////////////////////////////////////////////
// Fake.c
//
// this code gives OEMs a bogus Settings page to patch/modify
//
// OEM display pages patch the snot out of the Settings page
// the problem is that we have changed the setting page, and
// even if the OEM code could deal with our changes, the
// settings page is not even on the same property sheet
// as the extensions.
//
// some OEMs hook the setting page by hooking the TabContol and
// watching for a mouse click to activate the Settings page
// then they modify the page. NOTE they dont patch the page
// if it is activated via the keyboard only the mouse!
//
// some OEM pages find the Setting page by name.
// we have named the real settings page "Settings " and
// the fake page is "Settings"
//
// some OEM pages assume the last page is the Settings page.
// we make sure the fake settings is always last.
//
///////////////////////////////////////////////////////////////////////////////
#include "priv.h"
#include "winuser.h"
#pragma hdrstop
#include "cplext.h"
#ifndef TCIS_HIDDEN
#define TCIS_HIDDEN 0x0004
#pragma message("using local version of TCIS_HIDDEN")
#endif
#undef MATROX_HACK
/*
* Global stuff
*/
static LONG_PTR TabWndProc; // SysTabControl WndProc
static LONG_PTR DlgWndProc; // Dialog WndProc
#ifdef MATROX_HACK
static PROPSHEETHEADER psh; // saved prop sheet header
#endif
/*
* Local Constant Declarations
*/
int CALLBACK DeskPropSheetCallback(HWND hDlg, UINT code, LPARAM lParam);
INT_PTR CALLBACK FakeSettingsDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam);
IThemeUIPages *g_pThemeUI;
///////////////////////////////////////////////////////////////////////////////
// AddFakeSettingsPage
///////////////////////////////////////////////////////////////////////////////
void AddFakeSettingsPage(IThemeUIPages *pThemeUI, PROPSHEETHEADER * ppsh)
{
g_pThemeUI = pThemeUI;
PROPSHEETPAGE psp;
HPROPSHEETPAGE hpsp;
ZeroMemory(&psp, sizeof(psp));
psp.dwSize = sizeof(psp);
psp.dwFlags = PSP_DEFAULT;
psp.hInstance = HINST_THISDLL;
psp.pszTemplate = MAKEINTRESOURCE(DLG_FAKE_SETTINGS);
psp.pfnDlgProc = FakeSettingsDlgProc;
psp.lParam = 0L;
//
// some OEMs find the Property sheet by window title
// so make sure we have the title they expect.
//
#ifdef MATROX_HACK
if (ppsh->hwndParent && IsWindowVisible(ppsh->hwndParent))
{
psh = *ppsh;
ppsh->pszCaption = MAKEINTRESOURCE(IDS_DISPLAY_TITLE);
psp.dwFlags |= PSP_PREMATURE;
}
#endif
hpsp = CreatePropertySheetPage(&psp);
if (hpsp)
{
ppsh->phpage[ppsh->nPages++] = hpsp;
ppsh->pfnCallback = DeskPropSheetCallback;
ppsh->dwFlags |= PSH_USECALLBACK;
}
}
///////////////////////////////////////////////////////////////////////////////
// FakeSettingsDlgProc
///////////////////////////////////////////////////////////////////////////////
INT_PTR CALLBACK FakeSettingsDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
if (hDlg && DlgWndProc)
{
if (GetWindowLongPtr(hDlg, GWLP_WNDPROC) != DlgWndProc)
{
SetWindowLongPtr(hDlg, GWLP_WNDPROC, DlgWndProc);
}
if (GetWindowLongPtr(hDlg, DWLP_DLGPROC) != (LONG_PTR)FakeSettingsDlgProc)
{
SetWindowLongPtr(hDlg, DWLP_DLGPROC, (LONG_PTR)FakeSettingsDlgProc);
}
}
switch (message)
{
case WM_INITDIALOG:
return TRUE;
case WM_DESTROY:
break;
case WM_COMMAND:
if (LOWORD(wParam) == IDC_CHANGEDRV)
{
}
break;
}
return FALSE;
}
///////////////////////////////////////////////////////////////////////////////
// HideFakeSettingsPage
//
// hide the bogus settings page from view so the user cant see it.
//
// this code uses a new TabCtrl item style TCIS_HIDDEN that is only
// in the Win98/NT5/IE4.01 COMMCTRL
//
///////////////////////////////////////////////////////////////////////////////
void HideFakeSettingsPage(HWND hDlg)
{
HWND hwnd = PropSheet_GetTabControl(hDlg);
if (hwnd)
{
TCITEM tci;
tci.mask = TCIF_STATE;
tci.dwStateMask = TCIS_HIDDEN;
tci.dwState = TCIS_HIDDEN;
TabCtrl_SetItem(hwnd, TabCtrl_GetItemCount(hwnd)-1, &tci);
}
}
///////////////////////////////////////////////////////////////////////////////
// DeskPropSheetCallback
//
// what this callback does is look for someone subclassing the
// tab control, if we detect this we put the correct WndProc
// back.
//
// we also hide the fake settings page after all the entensions
// have initialized
//
///////////////////////////////////////////////////////////////////////////////
int CALLBACK DeskPropSheetCallback(HWND hDlg, UINT code, LPARAM lParam)
{
HWND hwnd;
WNDCLASS wc;
switch (code)
{
case PSCB_INITIALIZED:
TraceMsg(TF_GENERAL, "DeskPropSheetCallback: PSCB_INITIALIZED");
hwnd = PropSheet_GetTabControl(hDlg);
if (hwnd && TabWndProc)
{
if (GetWindowLongPtr(hwnd, GWLP_WNDPROC) != TabWndProc)
{
SetWindowLongPtr(hwnd, GWLP_WNDPROC, TabWndProc);
}
}
if (hDlg && DlgWndProc)
{
if (GetWindowLongPtr(hDlg, GWLP_WNDPROC) != DlgWndProc)
{
SetWindowLongPtr(hDlg, GWLP_WNDPROC, DlgWndProc);
}
}
#ifdef MATROX_HACK
//
// restore the caption
//
if (psh.pszCaption)
{
ShowWindow(hDlg, SW_SHOW);
Sleep(10);
PropSheet_SetTitle(hDlg, psh.dwFlags, psh.pszCaption);
PropSheet_SetTitle(GetParent(psh.hwndParent),
PSH_PROPTITLE, MAKEINTRESOURCE(IDS_DISPLAY_TITLE));
psh.pszCaption = 0;
}
#endif
//
// hide the settings page so the user cant see it.
//
HideFakeSettingsPage(hDlg);
break;
case PSCB_PRECREATE:
TraceMsg(TF_GENERAL, "DeskPropSheetCallback: PSCB_PRECREATE");
ZeroMemory(&wc, sizeof(wc));
SHFusionGetClassInfo(NULL, WC_DIALOG, &wc);
DlgWndProc = (LONG_PTR)wc.lpfnWndProc;
ZeroMemory(&wc, sizeof(wc));
SHFusionGetClassInfo(NULL, WC_TABCONTROL, &wc);
TabWndProc = (LONG_PTR)wc.lpfnWndProc;
break;
case PSCB_BUTTONPRESSED:
if ((PSBTN_OK == lParam) || (PSBTN_APPLYNOW == lParam))
{
DWORD dwFlags = ((PSBTN_OK == lParam) ? (TUIAP_WAITFORAPPLY | TUIAP_NONE) : TUIAP_NONE);
if (g_pThemeUI)
{
g_pThemeUI->ApplyPressed(dwFlags);
}
}
break;
}
return 0;
}