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Sweden-Number/dlls/gdi32/tests/dc.c

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/*
* Unit tests for dc functions
*
* Copyright (c) 2005 Huw Davies
* Copyright (c) 2005 Dmitry Timoshkov
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define WINVER 0x0501 /* request latest DEVMODE */
#include <assert.h>
#include <stdio.h>
#include "wine/test.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
static void dump_region(HRGN hrgn)
{
DWORD i, size;
RGNDATA *data = NULL;
RECT *rect;
if (!hrgn)
{
printf( "(null) region\n" );
return;
}
if (!(size = GetRegionData( hrgn, 0, NULL ))) return;
if (!(data = HeapAlloc( GetProcessHeap(), 0, size ))) return;
GetRegionData( hrgn, size, data );
printf( "%d rects:", data->rdh.nCount );
for (i = 0, rect = (RECT *)data->Buffer; i < data->rdh.nCount; i++, rect++)
printf( " (%d,%d)-(%d,%d)", rect->left, rect->top, rect->right, rect->bottom );
printf( "\n" );
HeapFree( GetProcessHeap(), 0, data );
}
static void test_savedc_2(void)
{
HWND hwnd;
HDC hdc;
HRGN hrgn;
RECT rc, rc_clip;
int ret;
hwnd = CreateWindowExA(0, "static", "", WS_POPUP, 0,0,100,100,
0, 0, 0, NULL);
assert(hwnd != 0);
ShowWindow(hwnd, SW_SHOW);
UpdateWindow(hwnd);
hrgn = CreateRectRgn(0, 0, 0, 0);
assert(hrgn != 0);
hdc = GetDC(hwnd);
ok(hdc != NULL, "CreateDC rets %p\n", hdc);
ret = GetClipBox(hdc, &rc_clip);
ok(ret == SIMPLEREGION, "GetClipBox returned %d instead of SIMPLEREGION\n", ret);
ret = GetClipRgn(hdc, hrgn);
ok(ret == 0, "GetClipRgn returned %d instead of 0\n", ret);
ret = GetRgnBox(hrgn, &rc);
ok(ret == NULLREGION, "GetRgnBox returned %d (%d,%d-%d,%d) instead of NULLREGION\n",
ret, rc.left, rc.top, rc.right, rc.bottom);
/*dump_region(hrgn);*/
SetRect(&rc, 0, 0, 100, 100);
ok(EqualRect(&rc, &rc_clip),
"rects are not equal: (%d,%d-%d,%d) - (%d,%d-%d,%d)\n",
rc.left, rc.top, rc.right, rc.bottom,
rc_clip.left, rc_clip.top, rc_clip.right, rc_clip.bottom);
ret = SaveDC(hdc);
todo_wine
{
ok(ret == 1, "ret = %d\n", ret);
}
ret = IntersectClipRect(hdc, 0, 0, 50, 50);
if (ret == COMPLEXREGION)
{
/* XP returns COMPLEXREGION although dump_region reports only 1 rect */
trace("Windows BUG: IntersectClipRect returned %d instead of SIMPLEREGION\n", ret);
/* let's make sure that it's a simple region */
ret = GetClipRgn(hdc, hrgn);
ok(ret == 1, "GetClipRgn returned %d instead of 1\n", ret);
dump_region(hrgn);
}
else
ok(ret == SIMPLEREGION, "IntersectClipRect returned %d instead of SIMPLEREGION\n", ret);
ret = GetClipBox(hdc, &rc_clip);
ok(ret == SIMPLEREGION, "GetClipBox returned %d instead of SIMPLEREGION\n", ret);
SetRect(&rc, 0, 0, 50, 50);
ok(EqualRect(&rc, &rc_clip), "rects are not equal\n");
ret = RestoreDC(hdc, 1);
ok(ret, "ret = %d\n", ret);
ret = GetClipBox(hdc, &rc_clip);
ok(ret == SIMPLEREGION, "GetClipBox returned %d instead of SIMPLEREGION\n", ret);
SetRect(&rc, 0, 0, 100, 100);
ok(EqualRect(&rc, &rc_clip), "rects are not equal\n");
DeleteObject(hrgn);
ReleaseDC(hwnd, hdc);
DestroyWindow(hwnd);
}
static void test_savedc(void)
{
HDC hdc = CreateDCA("DISPLAY", NULL, NULL, NULL);
int ret;
ok(hdc != NULL, "CreateDC rets %p\n", hdc);
ret = SaveDC(hdc);
ok(ret == 1, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 2, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 3, "ret = %d\n", ret);
ret = RestoreDC(hdc, -1);
ok(ret, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 3, "ret = %d\n", ret);
ret = RestoreDC(hdc, 1);
ok(ret, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 1, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 2, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 3, "ret = %d\n", ret);
ret = RestoreDC(hdc, -2);
ok(ret, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 2, "ret = %d\n", ret);
ret = RestoreDC(hdc, -2);
ok(ret, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 1, "ret = %d\n", ret);
ret = SaveDC(hdc);
ok(ret == 2, "ret = %d\n", ret);
ret = RestoreDC(hdc, -4);
ok(!ret, "ret = %d\n", ret);
ret = RestoreDC(hdc, 3);
ok(!ret, "ret = %d\n", ret);
/* Under win98 the following two succeed and both clear the save stack
ret = RestoreDC(hdc, -3);
ok(!ret, "ret = %d\n", ret);
ret = RestoreDC(hdc, 0);
ok(!ret, "ret = %d\n", ret);
*/
ret = RestoreDC(hdc, 1);
ok(ret, "ret = %d\n", ret);
DeleteDC(hdc);
}
static void test_GdiConvertToDevmodeW(void)
{
DEVMODEW * (WINAPI *pGdiConvertToDevmodeW)(const DEVMODEA *);
DEVMODEA dmA;
DEVMODEW *dmW;
BOOL ret;
pGdiConvertToDevmodeW = (void *)GetProcAddress(GetModuleHandleA("gdi32.dll"), "GdiConvertToDevmodeW");
if (!pGdiConvertToDevmodeW)
{
skip("GdiConvertToDevmodeW is not available on this platform\n");
return;
}
ret = EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dmA);
ok(ret, "EnumDisplaySettingsExA error %u\n", GetLastError());
ok(dmA.dmSize >= FIELD_OFFSET(DEVMODEA, dmICMMethod), "dmSize is too small: %04x\n", dmA.dmSize);
ok(dmA.dmSize <= sizeof(DEVMODEA), "dmSize is too large: %04x\n", dmA.dmSize);
dmW = pGdiConvertToDevmodeW(&dmA);
ok(dmW->dmSize >= FIELD_OFFSET(DEVMODEW, dmICMMethod), "dmSize is too small: %04x\n", dmW->dmSize);
ok(dmW->dmSize <= sizeof(DEVMODEW), "dmSize is too large: %04x\n", dmW->dmSize);
HeapFree(GetProcessHeap(), 0, dmW);
dmA.dmSize = FIELD_OFFSET(DEVMODEA, dmFields) + sizeof(dmA.dmFields);
dmW = pGdiConvertToDevmodeW(&dmA);
ok(dmW->dmSize == FIELD_OFFSET(DEVMODEW, dmFields) + sizeof(dmW->dmFields),
"wrong size %u\n", dmW->dmSize);
HeapFree(GetProcessHeap(), 0, dmW);
dmA.dmICMMethod = DMICMMETHOD_NONE;
dmA.dmSize = FIELD_OFFSET(DEVMODEA, dmICMMethod) + sizeof(dmA.dmICMMethod);
dmW = pGdiConvertToDevmodeW(&dmA);
ok(dmW->dmSize == FIELD_OFFSET(DEVMODEW, dmICMMethod) + sizeof(dmW->dmICMMethod),
"wrong size %u\n", dmW->dmSize);
ok(dmW->dmICMMethod == DMICMMETHOD_NONE,
"expected DMICMMETHOD_NONE, got %u\n", dmW->dmICMMethod);
HeapFree(GetProcessHeap(), 0, dmW);
dmA.dmSize = 1024;
dmW = pGdiConvertToDevmodeW(&dmA);
ok(dmW->dmSize == FIELD_OFFSET(DEVMODEW, dmPanningHeight) + sizeof(dmW->dmPanningHeight),
"wrong size %u\n", dmW->dmSize);
HeapFree(GetProcessHeap(), 0, dmW);
SetLastError(0xdeadbeef);
dmA.dmSize = 0;
dmW = pGdiConvertToDevmodeW(&dmA);
ok(!dmW, "GdiConvertToDevmodeW should fail\n");
ok(GetLastError() == 0xdeadbeef, "expected 0xdeadbeef, got %u\n", GetLastError());
/* this is the minimal dmSize that XP accepts */
dmA.dmSize = FIELD_OFFSET(DEVMODEA, dmFields);
dmW = pGdiConvertToDevmodeW(&dmA);
ok(dmW->dmSize == FIELD_OFFSET(DEVMODEW, dmFields),
"expected %04x, got %04x\n", FIELD_OFFSET(DEVMODEW, dmFields), dmW->dmSize);
HeapFree(GetProcessHeap(), 0, dmW);
}
static void test_CreateCompatibleDC(void)
{
BOOL bRet;
HDC hDC;
HDC hNewDC;
/* Create a DC compatible with the screen */
hDC = CreateCompatibleDC(NULL);
ok(hDC != NULL, "CreateCompatibleDC returned %p\n", hDC);
/* Delete this DC, this should succeed */
bRet = DeleteDC(hDC);
ok(bRet == TRUE, "DeleteDC returned %u\n", bRet);
/* Try to create a DC compatible to the deleted DC. This has to fail */
hNewDC = CreateCompatibleDC(hDC);
ok(hNewDC == NULL, "CreateCompatibleDC returned %p\n", hNewDC);
}
START_TEST(dc)
{
test_savedc();
test_savedc_2();
test_GdiConvertToDevmodeW();
test_CreateCompatibleDC();
}
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