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xform can be NULL when setting the identity.

This commit is contained in:
Huw Davies 2005-10-28 16:41:25 +00:00 committed by Alexandre Julliard
parent 7d99f36d03
commit d7d8998d1e
4 changed files with 62 additions and 1 deletions
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2
dlls/gdi/dc.c
View File

@ -1217,7 +1217,7 @@ BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform,
/* Check for illegal parameters */
if (!dc) return FALSE;
if (!xform) goto done;
if (!xform && iMode != MWT_IDENTITY) goto done;
/* Check that graphics mode is GM_ADVANCED */
if (dc->GraphicsMode!=GM_ADVANCED) goto done;

1
dlls/gdi/tests/.cvsignore
View File

@ -4,6 +4,7 @@ brush.ok
clipping.ok
gdiobj.ok
generated.ok
mapping.ok
metafile.ok
palette.ok
testlist.c

1
dlls/gdi/tests/Makefile.in
View File

@ -11,6 +11,7 @@ CTESTS = \
clipping.c \
gdiobj.c \
generated.c \
mapping.c \
metafile.c \
palette.c

59
dlls/gdi/tests/mapping.c Normal file
View File

@ -0,0 +1,59 @@
/*
* Unit tests for mapping functions
*
* Copyright (c) 2005 Huw Davies
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <assert.h>
#include <stdio.h>
#include <math.h>
#include "wine/test.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
void test_modify_world_transform(void)
{
HDC hdc = GetDC(0);
int ret;
ret = SetGraphicsMode(hdc, GM_ADVANCED);
if(!ret) /* running in win9x so quit */
{
ReleaseDC(0, hdc);
return;
}
ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
ok(ret, "ret = %d\n", ret);
ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
ok(!ret, "ret = %d\n", ret);
ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
ok(!ret, "ret = %d\n", ret);
ReleaseDC(0, hdc);
}
START_TEST(mapping)
{
test_modify_world_transform();
}