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BeginDeferWindowPos should allow zero count.

This commit is contained in:
Slava Monich 2000-07-08 12:44:09 +00:00 committed by Alexandre Julliard
parent 679226ff19
commit cdbe644f77
1 changed files with 9 additions and 1 deletions
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10
windows/winpos.c
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@ -8,6 +8,7 @@
#include <string.h>
#include "windef.h"
#include "wingdi.h"
#include "winerror.h"
#include "wine/winuser16.h"
#include "heap.h"
#include "module.h"
@ -2929,7 +2930,14 @@ HDWP WINAPI BeginDeferWindowPos( INT count )
HDWP handle;
DWP *pDWP;
if (count <= 0) return 0;
if (count < 0)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
/* Windows allows zero count, in which case it allocates context for 8 moves */
if (count == 0) count = 8;
handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
if (!handle) return 0;
pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );