reactos/rostests/apitests/w32knapi/ntuser/NtUserScrollDC.c

112 lines
2.7 KiB
C

INT
Test_NtUserScrollDC(PTESTINFO pti)
{
HWND hWnd;
HDC hDC;
HRGN hRgn, hTmpRgn;
RECT rcScroll, rcClip, rcUpdate;
RECT rect = {0,0,100,100};
INT Result;
hWnd = CreateWindowA("BUTTON",
"Test",
BS_PUSHBUTTON | WS_VISIBLE,
0,
0,
50,
100,
NULL,
NULL,
g_hInstance,
0);
ASSERT(hWnd);
RedrawWindow(hWnd, &rect, NULL, RDW_UPDATENOW);
hDC = GetDC(hWnd);
ASSERT(hDC);
hRgn = CreateRectRgn(0,0,10,10);
/* Test inverted clip rect */
rcScroll.left = 0;
rcScroll.top = 25;
rcScroll.right = 100;
rcScroll.bottom = 40;
rcClip.left = 0;
rcClip.top = 35;
rcClip.right = -70;
rcClip.bottom = -1000;
SetLastError(ERROR_SUCCESS);
Result = NtUserScrollDC(hDC, 10, 20, &rcScroll, &rcClip, hRgn, &rcUpdate);
RTEST(Result == 1);
RTEST(GetLastError() == ERROR_SUCCESS);
/* Test inverted scroll rect */
rcScroll.left = 0;
rcScroll.top = 25;
rcScroll.right = -100;
rcScroll.bottom = -40;
rcClip.left = 0;
rcClip.top = 35;
rcClip.right = 70;
rcClip.bottom = 1000;
SetLastError(ERROR_SUCCESS);
Result = NtUserScrollDC(hDC, 10, 20, &rcScroll, &rcClip, hRgn, &rcUpdate);
RTEST(Result == 1);
RTEST(GetLastError() == ERROR_SUCCESS);
rcScroll.left = 0;
rcScroll.top = 25;
rcScroll.right = 100;
rcScroll.bottom = 40;
/* Test invalid update region */
SetLastError(ERROR_SUCCESS);
Result = NtUserScrollDC(hDC, 10, 20, &rcScroll, &rcClip, (HRGN)0x123456, &rcUpdate);
RTEST(Result == 0);
TEST(GetLastError() == ERROR_INVALID_HANDLE);
/* Test invalid dc */
SetLastError(ERROR_SUCCESS);
Result = NtUserScrollDC((HDC)0x123456, 10, 20, &rcScroll, &rcClip, hRgn, &rcUpdate);
RTEST(Result == 0);
RTEST(GetLastError() == ERROR_SUCCESS);
/* Test invalid update rect */
SetLastError(ERROR_SUCCESS);
Result = NtUserScrollDC(hDC, 10, 20, &rcScroll, &rcClip, hRgn, (PVOID)0x80001000);
RTEST(Result == 0);
RTEST(GetLastError() == ERROR_NOACCESS);
Result = NtUserScrollDC(hDC, 10, 20, &rcScroll, &rcClip, hRgn, &rcUpdate);
RTEST(Result == TRUE);
RTEST(rcUpdate.left == 0);
RTEST(rcUpdate.top == 35);
RTEST(rcUpdate.right == 70);
RTEST(rcUpdate.bottom == 55);
hTmpRgn = CreateRectRgn(10,45,70,55);
Result = CombineRgn(hRgn, hRgn, hTmpRgn, RGN_XOR);
RTEST(Result == SIMPLEREGION);
SetRectRgn(hTmpRgn,0,35,70,40);
Result = CombineRgn(hRgn, hRgn, hTmpRgn, RGN_XOR);
RTEST(Result == NULLREGION);
DeleteObject(hTmpRgn);
/* TODO: Test with another window in front */
/* TODO: Test with different viewport extension */
ReleaseDC(hWnd, hDC);
DestroyWindow(hWnd);
DeleteObject(hRgn);
return APISTATUS_NORMAL;
}