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Implement ExtCreateRegion.

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svn path=/trunk/; revision=12730
This commit is contained in:
Filip Navara 2005-01-02 18:04:59 +00:00
parent 59aa5bd203
commit 7581cc7fb9
3 changed files with 56 additions and 11 deletions
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4
reactos/include/win32k/region.h
View file

@ -79,9 +79,9 @@ NtGdiEqualRgn(HRGN hSrcRgn1,
HRGN
STDCALL
NtGdiExtCreateRegion(CONST PXFORM Xform,
NtGdiExtCreateRegion(CONST XFORM *Xform,
DWORD Count,
CONST PROSRGNDATA RgnData);
CONST RGNDATA *RgnData);
BOOL
STDCALL

4
reactos/lib/gdi32/gdi32.def
View file

@ -1,4 +1,4 @@
; $Id: gdi32.def,v 1.13 2004/12/30 02:32:23 navaraf Exp $
; $Id$
;
; gdi32.def
;
@ -168,7 +168,7 @@ EudcLoadLinkW@16
EudcUnloadLinkW@8
ExcludeClipRect@20=NtGdiExcludeClipRect@20
ExtCreatePen@20=NtGdiExtCreatePen@20
ExtCreateRegion@12
ExtCreateRegion@12=NtGdiExtCreateRegion@12
ExtEscape@24=NtGdiExtEscape@24
ExtFloodFill@20=NtGdiExtFloodFill@20
ExtSelectClipRgn@12=NtGdiExtSelectClipRgn@12

55
reactos/subsys/win32k/objects/region.c
View file

@ -113,7 +113,7 @@ SOFTWARE.
* the y-x-banding that's so nice to have...
*/
/* $Id: region.c,v 1.64 2004/12/12 01:40:38 weiden Exp $ */
/* $Id$ */
#include <w32k.h>
#include <win32k/float.h>
@ -2224,12 +2224,57 @@ exit:
HRGN
STDCALL
NtGdiExtCreateRegion(CONST PXFORM Xform,
NtGdiExtCreateRegion(CONST XFORM *Xform,
DWORD Count,
CONST PROSRGNDATA RgnData)
CONST RGNDATA *RgnData)
{
UNIMPLEMENTED;
return 0;
HRGN hRgn;
RGNDATA SafeRgnData;
PROSRGNDATA Region;
NTSTATUS Status;
if (Count < FIELD_OFFSET(RGNDATA, Buffer))
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return NULL;
}
Status = MmCopyFromCaller(&SafeRgnData, RgnData, min(Count, sizeof(RGNDATA)));
if (!NT_SUCCESS(Status))
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return NULL;
}
hRgn = RGNDATA_AllocRgn(SafeRgnData.rdh.nCount);
if (hRgn == NULL)
{
SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY);
return NULL;
}
Region = RGNDATA_LockRgn(hRgn);
if (Region == NULL)
{
SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY);
return FALSE;
}
RtlCopyMemory(&Region->rdh, &SafeRgnData, FIELD_OFFSET(RGNDATA, Buffer));
Status = MmCopyFromCaller(Region->Buffer, RgnData->Buffer,
Count - FIELD_OFFSET(RGNDATA, Buffer));
if (!NT_SUCCESS(Status))
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
RGNDATA_UnlockRgn(hRgn);
NtGdiDeleteObject(hRgn);
return NULL;
}
RGNDATA_UnlockRgn(hRgn);
return hRgn;
}
BOOL