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Add check for global handles to NtGdiDeleteDC, this prevents applications from destroying DCs that are part of DCEs.

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svn path=/trunk/; revision=16748
This commit is contained in:
Filip Navara 2005-07-26 16:03:46 +00:00
parent fc8add5154
commit 609a60c719
1 changed files with 8 additions and 1 deletions
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9
reactos/subsys/win32k/objects/dc.c
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@ -962,10 +962,17 @@ NtGdiDeleteDC(HDC DCHandle)
{
PDC DCToDelete;
if (!GDIOBJ_OwnedByCurrentProcess(DCHandle))
{
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
DCToDelete = DC_LockDc(DCHandle);
if (DCToDelete == NULL)
{
return FALSE;
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
/* First delete all saved DCs */