GetClipRgn.c

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/*
 * PROJECT:         ReactOS api tests
 * LICENSE:         GPL - See COPYING in the top level directory
 * PURPOSE:         Test for GetClipRgn
 * PROGRAMMERS:     Timo Kreuzer
 */

#include "precomp.h"

void Test_GetClipRgn()
{
    HWND hWnd;
    HDC hDC;
    HRGN hrgn;//, hrgn2;
    int ret;

    /* Create a window */
    hWnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
                        CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
                        NULL, NULL, 0, 0);

    hDC = GetDC(hWnd);
    hrgn = CreateRectRgn(0,0,0,0);

    /* Test invalid DC */
    SetLastError(ERROR_SUCCESS);
    ret = GetClipRgn((HDC)0x12345, hrgn);
    ok(ret == -1, "Expected -1, got %d\n", ret);
    ok(GetLastError() == ERROR_INVALID_PARAMETER, "Expected ERROR_INVALID_PARAMETER, got %ld\n", GetLastError());

    /* Test invalid hrgn */
    SetLastError(ERROR_SUCCESS);
    ret = GetClipRgn(hDC, (HRGN)0x12345);
    ok(ret == 0, "Expected 0, got %d\n", ret);
    ok(GetLastError() == ERROR_SUCCESS, "Expected ERROR_SUCCESS, got %ld\n", GetLastError());

    ReleaseDC(hWnd, hDC);
    DestroyWindow(hWnd);
}

START_TEST(GetClipRgn)
{
    Test_GetClipRgn();
}