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Reprotect WindowFromPoint after patching

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This commit is contained in:
Thorvald Natvig 2010-02-27 23:43:59 +01:00
parent aa77c1e34b
commit 47a45386e9
1 changed files with 6 additions and 0 deletions
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6
src/mumble/GlobalShortcut_win.cpp
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@ -74,6 +74,7 @@ GlobalShortcutWin::GlobalShortcutWin() {
f[i] = ucWindowFromPointNew[i];
FlushInstructionCache(GetCurrentProcess(), f, 6);
VirtualProtect(f, 6, oldProtect, &oldProtect);
} else {
qWarning("GlobalShortcutWin: Failed to patch WindowFromPoint");
}
@ -95,8 +96,11 @@ HWND WINAPI GlobalShortcutWin::HookWindowFromPoint(POINT p) {
if (g.ocIntercept)
return g.ocIntercept->qgv.winId();
DWORD oldProtect;
unsigned char *f = reinterpret_cast<unsigned char *>(&WindowFromPoint);
VirtualProtect(f, 6, PAGE_EXECUTE_READWRITE, &oldProtect);
for (int i=0;i<6;++i)
f[i] = ucWindowFromPointOrig[i];
FlushInstructionCache(GetCurrentProcess(), f, 6);
@ -107,6 +111,8 @@ HWND WINAPI GlobalShortcutWin::HookWindowFromPoint(POINT p) {
f[i] = ucWindowFromPointNew[i];
FlushInstructionCache(GetCurrentProcess(), f, 6);
VirtualProtect(f, 6, oldProtect, &oldProtect);
return hwnd;
}
#endif