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[WIN32SS][USER32] Make IsHungAppWindow check FNID (#1245)

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CORE-11944
This commit is contained in:
Katayama Hirofumi MZ
2019-01-15 20:32:23 +09:00
committed by GitHub
parent 9285bd19de
commit 1a4732703c
1 changed files with 4 additions and 1 deletions
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5
win32ss/user/user32/windows/window.c
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@@ -1841,13 +1841,16 @@ InternalGetWindowText(HWND hWnd, LPWSTR lpString, int nMaxCount)
BOOL WINAPI
IsHungAppWindow(HWND hwnd)
{
PWND Window;
UNICODE_STRING ClassName;
WCHAR szClass[16];
static const UNICODE_STRING GhostClass = RTL_CONSTANT_STRING(L"Ghost");
/* Ghost is a hung window */
RtlInitEmptyUnicodeString(&ClassName, szClass, sizeof(szClass));
if (NtUserGetClassName(hwnd, FALSE, &ClassName) &&
Window = ValidateHwnd(hwnd);
if (Window && Window->fnid == FNID_GHOST &&
NtUserGetClassName(hwnd, FALSE, &ClassName) &&
RtlEqualUnicodeString(&ClassName, &GhostClass, TRUE))
{
return TRUE;