reactos/modules/rostests/apitests/gdi32/GetClipBox.c

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/*
* PROJECT: ReactOS api tests
* LICENSE: GPL - See COPYING in the top level directory
* PURPOSE: Test for GetClipBox
* PROGRAMMERS: Timo Kreuzer
*/
2017-12-02 20:00:06 +00:00
#include "precomp.h"
void Test_GetClipBox()
{
HWND hWnd;
HDC hdc;
RECT rect;
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);
ok(hWnd != NULL, "CreateWindowW failed\n");
if (hWnd == NULL)
{
return;
}
hdc = GetDC(hWnd);
/* Test invalid DC */
SetLastError(ERROR_SUCCESS);
ret = GetClipBox((HDC)0x12345, &rect);
ok(ret == ERROR, "Expected ERROR, got %d\n", ret);
ok((GetLastError() == 0) || (GetLastError() == ERROR_INVALID_HANDLE), "Expected 0, got %ld\n", GetLastError());
//ret = GetClipBox(hdc, &rect);
//ok_int(ret, SIMPLEREGION);
//ok_rect(&rect, 0, 0, 132, 68);
/* Create a clip region */
hrgn = CreateRectRgn(5, 7, 50, 50);
SelectClipRgn(hdc, hrgn);
DeleteObject(hrgn);
ret = GetClipBox(hdc, &rect);
ok_int(ret, SIMPLEREGION);
ok_rect(&rect, 5, 7, 50, 50);
/* Set clip region as meta region */
SetMetaRgn(hdc);
/* Create a new clip region */
hrgn = CreateRectRgn(10, 10, 100, 100);
SelectClipRgn(hdc, hrgn);
DeleteObject(hrgn);
ret = GetClipBox(hdc, &rect);
ok_int(ret, SIMPLEREGION);
ok_rect(&rect, 10, 10, 50, 50);
/* Create an empty clip region */
hrgn = CreateRectRgn(10, 10, 10, 30);
SelectClipRgn(hdc, hrgn);
DeleteObject(hrgn);
ret = GetClipBox(hdc, &rect);
ok_int(ret, NULLREGION);
ok_rect(&rect, 0, 0, 0, 0);
/* Create a complex region */
hrgn = CreateRectRgn(10, 10, 30, 30);
hrgn2 = CreateRectRgn(20, 20, 60, 60);
ok_int(CombineRgn(hrgn, hrgn, hrgn2, RGN_OR), COMPLEXREGION);
SelectClipRgn(hdc, hrgn);
DeleteObject(hrgn2);
ret = GetClipBox(hdc, &rect);
ok_int(ret, COMPLEXREGION);
ok_rect(&rect, 10, 10, 50, 50);
/* Set scaling but keep the mapping mode (viewport should not be changed) */
ok_int(SetViewportExtEx(hdc, 1000, 1000, NULL), 1);
ret = GetClipBox(hdc, &rect);
ok_int(ret, COMPLEXREGION);
ok_rect(&rect, 10, 10, 50, 50);
/* Set unisotropic mode, ClipBox should be unchanged */
ok_int(SetMapMode(hdc, MM_ANISOTROPIC), 1);
ret = GetClipBox(hdc, &rect);
ok_int(ret, COMPLEXREGION);
ok_rect(&rect, 10, 10, 50, 50);
/* Now set viewport again */
ok_int(SetViewportExtEx(hdc, 200, 400, NULL), 1);
ret = GetClipBox(hdc, &rect);
ok_int(ret, COMPLEXREGION); // obviously some special secret feature...
ok_rect(&rect, 0, 0, 0, 0);
/* Reset clip region */
SelectClipRgn(hdc, NULL);
SetMetaRgn(hdc);
ret = GetClipBox(hdc, &rect);
ok_int(ret, SIMPLEREGION);
ok_rect(&rect, 0, 0, 0, 0);
hrgn = CreateRectRgn(10, 10, 190, 190);
SelectClipRgn(hdc, hrgn);
ret = GetClipBox(hdc, &rect);
ok_int(ret, SIMPLEREGION);
ok_rect(&rect, 0, 0, 0, 0);
/* Now also set the window extension */
ok_int(SetWindowExtEx(hdc, 400, 600, NULL), 1);
ret = GetClipBox(hdc, &rect);
ok_int(ret, SIMPLEREGION);
ok_rect(&rect, 20, 15, 100, 75);
hrgn = CreateRectRgn(30, 30, 300, 300);
SelectClipRgn(hdc, hrgn);
SetMetaRgn(hdc);
ret = GetClipBox(hdc, &rect);
ok_int(ret, SIMPLEREGION);
ok_rect(&rect, 60, 45, 100, 75);
ReleaseDC(hWnd, hdc);
DestroyWindow(hWnd);
}
START_TEST(GetClipBox)
{
Test_GetClipBox();
}