You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
922 B
63 lines
922 B
/*++
|
|
|
|
Copyright (c) 2002 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
AutoCad.cpp
|
|
|
|
Abstract:
|
|
|
|
Prevent AV when IsEmptyRect is called with a bad pointer. This fixes a hard to
|
|
repro Watson bug.
|
|
|
|
Notes:
|
|
|
|
This is an app specific shim.
|
|
|
|
History:
|
|
|
|
02/13/2002 linstev Created
|
|
|
|
--*/
|
|
|
|
#include "precomp.h"
|
|
|
|
IMPLEMENT_SHIM_BEGIN(AutoCad)
|
|
#include "ShimHookMacro.h"
|
|
|
|
APIHOOK_ENUM_BEGIN
|
|
APIHOOK_ENUM_ENTRY(IsRectEmpty)
|
|
APIHOOK_ENUM_END
|
|
|
|
/*++
|
|
|
|
IsEmptyRect
|
|
|
|
--*/
|
|
|
|
BOOL
|
|
APIHOOK(IsRectEmpty)(
|
|
CONST RECT *lprc
|
|
)
|
|
{
|
|
if (IsBadReadPtr(lprc, sizeof(RECT))) {
|
|
LOGN(eDbgLevelInfo, "[IsRectEmpty] invalid lprc pointer, returning TRUE");
|
|
return TRUE;
|
|
}
|
|
|
|
return ORIGINAL_API(IsRectEmpty)(lprc);
|
|
}
|
|
|
|
/*++
|
|
|
|
Register hooked functions
|
|
|
|
--*/
|
|
|
|
HOOK_BEGIN
|
|
APIHOOK_ENTRY(USER32.DLL, IsRectEmpty)
|
|
HOOK_END
|
|
|
|
IMPLEMENT_SHIM_END
|
|
|