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[OLE32] Do not crash on an invalid / empty clipboard.

Browse source 
CORE-12302

svn path=/trunk/; revision=75617
This commit is contained in:
Mark Jansen 2017-08-18 17:18:46 +00:00
parent 8998ffaca2
commit e6008ea636
1 changed files with 7 additions and 1 deletions
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8
reactos/dll/win32/ole32/clipboard.c
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@ -2018,6 +2018,10 @@ static LRESULT CALLBACK clipbrd_wndproc(HWND hwnd, UINT message, WPARAM wparam,
{ {
case WM_RENDERFORMAT: case WM_RENDERFORMAT:
{ {
#ifdef __REACTOS__
if (clipbrd->cached_enum)
{
#endif
UINT cf = wparam; UINT cf = wparam;
ole_priv_data_entry *entry; ole_priv_data_entry *entry;
@ -2026,7 +2030,9 @@ static LRESULT CALLBACK clipbrd_wndproc(HWND hwnd, UINT message, WPARAM wparam,
if(entry) if(entry)
render_format(clipbrd->src_data, &entry->fmtetc); render_format(clipbrd->src_data, &entry->fmtetc);
#ifdef __REACTOS__
}
#endif
break; break;
} }