rostests/apitests/w32knapi/ntgdi/NtGdiGetRandomRgn.c

   1 INT
   2 Test_NtGdiGetRandomRgn(PTESTINFO pti)
   3 {
   4         HWND hWnd;
   5         HDC hDC;
   6         HRGN hrgn, hrgn2;
   7
   8         /* Create a window */
   9         hWnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
  10                             CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
  11                             NULL, NULL, g_hInstance, 0);
  12 //      UpdateWindow(hWnd);
  13         hDC = GetDC(hWnd);
  14
  15         ASSERT(hDC != NULL);
  16
  17         hrgn = CreateRectRgn(0,0,0,0);
  18         hrgn2 = CreateRectRgn(3,3,10,10);
  19         SetLastError(ERROR_SUCCESS);
  20         RTEST(NtGdiGetRandomRgn(0, hrgn, 0) == -1);
  21         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  22
  23         SetLastError(ERROR_SUCCESS);
  24         RTEST(NtGdiGetRandomRgn((HDC)2345, hrgn, 1) == -1);
  25         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  26
  27         SetLastError(ERROR_SUCCESS);
  28         RTEST(NtGdiGetRandomRgn((HDC)2345, hrgn, 10) == -1);
  29         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  30
  31         SetLastError(ERROR_SUCCESS);
  32         RTEST(NtGdiGetRandomRgn((HDC)2345, (HRGN)10, 10) == -1);
  33         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  34
  35         SetLastError(ERROR_SUCCESS);
  36         RTEST(NtGdiGetRandomRgn((HDC)2345, 0, 1) == -1);
  37         RTEST(GetLastError() == ERROR_INVALID_HANDLE);
  38
  39         SetLastError(ERROR_SUCCESS);
  40         RTEST(NtGdiGetRandomRgn(hDC, 0, 0) == 0);
  41         RTEST(NtGdiGetRandomRgn(hDC, 0, 1) == 0);
  42         RTEST(NtGdiGetRandomRgn(hDC, (HRGN)-5, 0) == 0);
  43         RTEST(NtGdiGetRandomRgn(hDC, (HRGN)-5, 1) == 0);
  44         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 0) == 0);
  45         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 0);
  46         TEST(NtGdiGetRandomRgn(hDC, hrgn, 2) == 0);
  47         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 3) == 0);
  48         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 4) == 1);
  49         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 5) == 0);
  50         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 10) == 0);
  51         RTEST(NtGdiGetRandomRgn(hDC, hrgn, -10) == 0);
  52         RTEST(GetLastError() == ERROR_SUCCESS);
  53
  54         SelectClipRgn(hDC, hrgn2);
  55         RTEST(NtGdiGetRandomRgn(hDC, 0, 1) == -1);
  56         RTEST(GetLastError() == ERROR_SUCCESS);
  57         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 1);
  58         RTEST(CombineRgn(hrgn, hrgn, hrgn, RGN_OR) == SIMPLEREGION);
  59         RTEST(CombineRgn(hrgn, hrgn, hrgn2, RGN_XOR) == NULLREGION);
  60
  61         SetRectRgn(hrgn2,0,0,0,0);
  62         SelectClipRgn(hDC, hrgn2);
  63         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 1);
  64
  65         RTEST(CombineRgn(hrgn2, hrgn, hrgn2, RGN_XOR) == NULLREGION);
  66         RTEST(CombineRgn(hrgn2, hrgn, hrgn, RGN_OR) == NULLREGION);
  67
  68         SelectClipRgn(hDC, NULL);
  69         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 1) == 0);
  70
  71
  72         RTEST(NtGdiGetRandomRgn(hDC, hrgn, 4) == 1);
  73
  74         RTEST(GetLastError() == ERROR_SUCCESS);
  75
  76         ReleaseDC(hWnd, hDC);
  77         DestroyWindow(hWnd);
  78
  79         return APISTATUS_NORMAL;
  80 }