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42017a3c83
Add some test for GetDCEx that highlight the ridiculous implementation of owned and class DCs. svn path=/trunk/; revision=66444
450 lines
15 KiB
C
450 lines
15 KiB
C
/*
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* PROJECT: ReactOS api tests
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* LICENSE: GPL - See COPYING in the top level directory
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* PURPOSE: Test for GetDCEx
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* PROGRAMMERS: Timo Kreuzer
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*/
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#include <stdio.h>
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#include <wine/test.h>
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#include <windows.h>
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#include "helper.h"
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#define DCX_USESTYLE 0x00010000
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void Test_GetDCEx_Params()
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{
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}
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static
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LRESULT
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CALLBACK
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WndProc(
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_In_ HWND hwnd,
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_In_ UINT uMsg,
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_In_ WPARAM wParam,
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_In_ LPARAM lParam)
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{
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return TRUE;
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}
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static
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ATOM
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RegisterClassHelper(
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PSTR pszClassName,
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UINT style,
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WNDPROC pfnWndProc)
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{
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WNDCLASSA cls;
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cls.style = style;
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cls.lpfnWndProc = pfnWndProc;
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cls.cbClsExtra = 0;
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cls.cbWndExtra = 0;
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cls.hInstance = GetModuleHandleA(0);
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cls.hIcon = 0;
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cls.hCursor = LoadCursorA(0, IDC_ARROW);
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cls.hbrBackground = GetStockObject(WHITE_BRUSH);
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cls.lpszMenuName = NULL;
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cls.lpszClassName = pszClassName;
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return RegisterClassA(&cls);
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}
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static
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HWND
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CreateWindowHelper(
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PSZ pszClassName,
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PSZ pszTitle)
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{
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return CreateWindowA(pszClassName,
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pszTitle,
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WS_OVERLAPPEDWINDOW,
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CW_USEDEFAULT,
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CW_USEDEFAULT,
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100,
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100,
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NULL,
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NULL,
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0,
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NULL);
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}
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static
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void
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Test_GetDCEx_Cached()
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{
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static const PSTR pszClassName = "TestClass_Cached";
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ATOM atomClass;
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HWND hwnd;
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HDC hdc1, hdc2;
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HRGN hrgn;
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atomClass = RegisterClassHelper(pszClassName, 0, WndProc);
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ok(atomClass != 0, "Failed to register class\n");
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hwnd = CreateWindowHelper(pszClassName, "Test Window1");
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ok(hwnd != NULL, "Failed to create hwnd\n");
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hdc1 = GetDCEx(hwnd, 0, 0);
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ok(hdc1 == NULL, "GetDCEx should fail\n");
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hrgn = CreateRectRgn(0, 0, 100, 100);
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hdc1 = GetDCEx(hwnd, hrgn, 0);
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ok(hdc1 == NULL, "GetDCEx should fail\n");
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hdc1 = GetDCEx(hwnd, 0, DCX_WINDOW);
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ok(hdc1 == NULL, "GetDCEx should fail\n");
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hdc1 = GetDCEx(hwnd, hrgn, DCX_WINDOW);
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ok(hdc1 == NULL, "GetDCEx should fail\n");
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hdc1 = GetDCEx(hwnd, hrgn, DCX_INTERSECTRGN);
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ok(hdc1 == NULL, "GetDCEx should fail\n");
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hdc1 = GetDCEx(hwnd, hrgn, DCX_PARENTCLIP);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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ReleaseDC(hwnd, hdc1);
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hdc1 = GetDCEx(hwnd, hrgn, DCX_WINDOW | DCX_INTERSECTRGN | DCX_PARENTCLIP);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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ReleaseDC(hwnd, hdc1);
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hdc1 = GetDCEx(hwnd, 0, DCX_CACHE);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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ReleaseDC(hwnd, hdc1);
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hrgn = CreateRectRgn(0, 0, 100, 100);
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hdc2 = GetDCEx(hwnd, hrgn, DCX_CACHE);
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ok(hdc2 != NULL, "GetDCEx failed\n");
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ReleaseDC(hwnd, hdc2);
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ok(hdc2 == hdc1, "Expected the same DC\n");
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hdc1 = GetDCEx(hwnd, 0, DCX_CACHE);
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hdc2 = GetDCEx(hwnd, hrgn, DCX_CACHE);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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ok(hdc2 != hdc1, "Expected a different DC\n");
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ReleaseDC(hwnd, hdc1);
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ReleaseDC(hwnd, hdc2);
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hdc1 = GetDCEx(NULL, NULL, 0);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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hdc2 = GetDCEx(NULL, NULL, 0);
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ok(hdc2 != NULL, "GetDCEx failed\n");
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ok(hdc2 != hdc1, "Expected a different DC\n");
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ReleaseDC(hwnd, hdc1);
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ReleaseDC(hwnd, hdc2);
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ok(CombineRgn(hrgn, hrgn, hrgn, RGN_OR) == SIMPLEREGION, "region is not valid");
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DestroyWindow(hwnd);
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ok(UnregisterClass(pszClassName, GetModuleHandleA(0)) == TRUE,
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"UnregisterClass failed");
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}
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static
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void
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Test_GetDCEx_CS_OWNDC()
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{
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static const PSTR pszClassName = "TestClass_CS_OWNDC";
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ATOM atomClass;
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HWND hwnd;
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HDC hdc1, hdc2;
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//HRGN hrgn;
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atomClass = RegisterClassHelper(pszClassName, CS_OWNDC, WndProc);
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ok(atomClass != 0, "Failed to register class\n");
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hwnd = CreateWindowHelper(pszClassName, "Test Window1");
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ok(hwnd != NULL, "Failed to create hwnd\n");
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hdc1 = GetDCEx(hwnd, NULL, 0);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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hdc2 = GetDCEx(hwnd, NULL, 0);
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ok(hdc2 != NULL, "GetDCEx failed\n");
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ok(hdc2 == hdc1, "Expected the same DC\n");
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ok(ReleaseDC(hwnd, hdc1) == TRUE, "ReleaseDC failed\n");
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ok(ReleaseDC(hwnd, hdc2) == TRUE, "ReleaseDC failed\n");
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hdc2 = GetDCEx(hwnd, NULL, 0);
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ok(hdc2 == hdc1, "Expected the same DC\n");
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ok(ReleaseDC(hwnd, hdc2) == TRUE, "ReleaseDC failed\n");
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hdc2 = GetDCEx(hwnd, NULL, DCX_CACHE);
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ok(hdc2 != hdc1, "Expected a different DC\n");
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ok(ReleaseDC(hwnd, hdc2) == TRUE, "ReleaseDC failed\n");
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hdc2 = GetDCEx(hwnd, NULL, DCX_WINDOW);
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ok(hdc2 == hdc1, "Expected the same DC\n");
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ok(ReleaseDC(hwnd, hdc2) == TRUE, "ReleaseDC failed\n");
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/* Try after resetting CS_OWNDC in the class */
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ok(SetClassLongPtrA(hwnd, GCL_STYLE, 0) == CS_OWNDC, "class style wrong\n");
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hdc2 = GetDCEx(hwnd, NULL, 0);
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ok(hdc2 == hdc1, "Expected the same DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd, hdc2) == TRUE, "ReleaseDC failed\n");
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/* Try after setting CS_CLASSDC in the class */
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ok(SetClassLongPtrA(hwnd, GCL_STYLE, CS_CLASSDC) == 0, "class style not set\n");
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hdc2 = GetDCEx(hwnd, NULL, 0);
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ok(hdc2 == hdc1, "Expected the same DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd, hdc2) == TRUE, "ReleaseDC failed\n");
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/* CS_OWNDC and CS_CLASSDC? Is that even legal? */
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ok(SetClassLongPtrA(hwnd, GCL_STYLE, (CS_OWNDC | CS_CLASSDC)) == CS_CLASSDC, "class style not set\n");
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hdc2 = GetDCEx(hwnd, NULL, 0);
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ok(hdc2 == hdc1, "Expected the same DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd, hdc2) == TRUE, "ReleaseDC failed\n");
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SetClassLongPtrA(hwnd, GCL_STYLE, CS_OWNDC);
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DestroyWindow(hwnd);
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ok(UnregisterClass(pszClassName, GetModuleHandleA(0)) == TRUE,
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"UnregisterClass failed");
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}
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static
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void
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Test_GetDCEx_CS_CLASSDC()
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{
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static const PSTR pszClassName = "TestClass_CS_CLASSDC";
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ATOM atomClass;
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HWND hwnd1, hwnd2;
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HDC hdc1, hdc2;
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//HRGN hrgn;
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atomClass = RegisterClassHelper(pszClassName, CS_CLASSDC, WndProc);
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ok(atomClass != 0, "Failed to register class\n");
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hwnd1 = CreateWindowHelper(pszClassName, "Test Window1");
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ok(hwnd1 != NULL, "Failed to create hwnd1\n");
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/* Looks legit, but this is not the DC you are looking for!
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In fact this is NOT the class dc, but an own DC, doh!
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When the first Window is created, the DC for that Window is both it's own
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AND the class DC. But we only get the class DC, when using DCX_USESTYLE */
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hdc1 = GetDCEx(hwnd1, NULL, 0);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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hdc2 = GetDCEx(hwnd1, NULL, 0);
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ok(hdc2 == hdc1, "Expected the same DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd1, hdc1) == TRUE, "ReleaseDC failed\n");
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ok(ReleaseDC(hwnd1, hdc2) == TRUE, "ReleaseDC failed\n");
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/* Now with DCX_USESTYLE */
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hdc2 = GetDCEx(hwnd1, NULL, DCX_USESTYLE);
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ok(hdc2 == hdc1, "Expected the same DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd1, hdc2) == TRUE, "ReleaseDC failed\n");
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hwnd2 = CreateWindowHelper(pszClassName, "Test Window2");
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ok(hwnd2 != NULL, "Failed to create hwnd2\n");
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/* Yeah, this doesn't work anymore. Once the */
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hdc2 = GetDCEx(hwnd2, NULL, 0);
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ok(hdc2 == NULL, "Expected failure\n");
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/* Now with DCX_USESTYLE ... */
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hdc2 = GetDCEx(hwnd2, NULL, DCX_USESTYLE);
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ok(hdc2 == hdc1, "Expected the same DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd2, hdc2) == TRUE, "ReleaseDC failed\n");
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SendMessage(hwnd2, WM_USER, 0, 0);
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DestroyWindow(hwnd1);
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DestroyWindow(hwnd2);
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ok(UnregisterClass(pszClassName, GetModuleHandleA(0)) == TRUE,
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"UnregisterClass failed");
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}
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static
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void
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Test_GetDCEx_CS_Mixed()
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{
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static const PSTR pszClassName = "TestClass_CS_Mixed";
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ATOM atomClass;
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HWND hwnd1,hwnd2, hwnd3;
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HDC hdc1, hdc2, hdc3;
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/* Register a class with CS_OWNDC *and* CS_CLASSDC */
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atomClass = RegisterClassHelper(pszClassName, CS_OWNDC | CS_CLASSDC, WndProc);
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ok(atomClass != 0, "Failed to register class\n");
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/* Create the first window, this should create a single own and class DC */
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hwnd1 = CreateWindowHelper(pszClassName, "Test Window1");
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ok(hwnd1 != NULL, "Failed to create hwnd1\n");
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/* Verify that we have the right style */
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ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == (CS_OWNDC | CS_CLASSDC),
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"class style not set\n");
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/* This is now the class DC and the first windows own DC */
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hdc1 = GetDCEx(hwnd1, NULL, 0);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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ok(ReleaseDC(hwnd1, hdc1) == TRUE, "ReleaseDC failed\n");
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/* This should get us the own/class DC again */
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hdc2 = GetDCEx(hwnd1, NULL, 0);
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ok(hdc2 == hdc1, "Expected the own/class DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd1, hdc2) == TRUE, "ReleaseDC failed\n");
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/* This should get us the class DC, but it's the same */
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hdc2 = GetDCEx(hwnd1, NULL, DCX_USESTYLE);
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ok(hdc2 == hdc1, "Expected the own/class DC, got %p\n", hdc2);
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ok(ReleaseDC(hwnd1, hdc2) == TRUE, "ReleaseDC failed\n");
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/* Create a second window */
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hwnd2 = CreateWindowHelper(pszClassName, "Test Window1");
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ok(hwnd1 != NULL, "Failed to create hwnd1\n");
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/* This should get us the own DC of the new window */
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hdc2 = GetDCEx(hwnd2, NULL, 0);
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ok(hdc2 != NULL, "GetDCEx failed\n");
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ok(hdc2 != hdc1, "Expected different DC\n");
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ok(ReleaseDC(hwnd2, hdc2) == TRUE, "ReleaseDC failed\n");
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/* This gets us the own DC again, CS_OWNDC has priority! */
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hdc3 = GetDCEx(hwnd2, NULL, DCX_USESTYLE);
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ok(hdc3 == hdc2, "Expected the own DC, got %p\n", hdc3);
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ok(ReleaseDC(hwnd2, hdc3) == TRUE, "ReleaseDC failed\n");
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/* Disable CS_OWNDC */
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ok(SetClassLongPtrA(hwnd1, GCL_STYLE, CS_CLASSDC) == (CS_OWNDC | CS_CLASSDC), "unexpected style\n");
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ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == CS_CLASSDC, "class style not set\n");
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/* Since the window already has an own DC, we get it again! */
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hdc3 = GetDCEx(hwnd2, NULL, DCX_USESTYLE);
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ok(hdc3 == hdc2, "Expected the own DC, got %p\n", hdc3);
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ok(ReleaseDC(hwnd2, hdc3) == TRUE, "ReleaseDC failed\n");
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/* Disable CS_CLASSDC, too */
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ok(SetClassLongPtrA(hwnd1, GCL_STYLE, 0) == CS_CLASSDC, "unexpected style\n");
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ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == 0, "class style not set\n");
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/* With DCX_USESTYLE we only get a cached DC */
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hdc3 = GetDCEx(hwnd2, NULL, DCX_USESTYLE);
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ok(hdc3 != NULL, "GetDCEx failed\n");
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ok(hdc3 != hdc1, "Expected different DC, got class DC\n");
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ok(hdc3 != hdc2, "Expected different DC, got own DC\n");
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ok(ReleaseDC(hwnd2, hdc3) == TRUE, "ReleaseDC failed\n");
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/* Without DCX_USESTYLE we get the own DC */
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hdc3 = GetDCEx(hwnd2, NULL, 0);
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ok(hdc3 != NULL, "GetDCEx failed\n");
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ok(hdc3 != hdc1, "Expected different DC, got class DC\n");
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ok(hdc3 == hdc2, "Expected the own DC, got %p\n", hdc3);
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ok(ReleaseDC(hwnd2, hdc3) == TRUE, "ReleaseDC failed\n");
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/* Set only CS_OWNDC */
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ok(SetClassLongPtrA(hwnd1, GCL_STYLE, CS_OWNDC) == 0, "unexpected style\n");
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ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == CS_OWNDC, "class style not set\n");
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hwnd3 = CreateWindowHelper(pszClassName, "Test Window1");
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ok(hwnd3 != NULL, "Failed to create hwnd1\n");
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/* This should get a new own DC */
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hdc2 = GetDCEx(hwnd3, NULL, 0);
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ok(hdc2 != hdc1, "Expected different DC\n");
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ok(ReleaseDC(hwnd3, hdc2) == TRUE, "ReleaseDC failed\n");
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/* Re-enable CS_CLASSDC */
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ok(SetClassLongPtrA(hwnd1, GCL_STYLE, (CS_OWNDC | CS_CLASSDC)) == CS_OWNDC, "unexpected style\n");
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ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == (CS_OWNDC | CS_CLASSDC), "class style not set\n");
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/* This should get us the own DC */
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hdc3 = GetDCEx(hwnd3, NULL, 0);
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ok(hdc3 == hdc2, "Expected the same DC, got %p\n", hdc3);
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ok(ReleaseDC(hwnd3, hdc3) == TRUE, "ReleaseDC failed\n");
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/* This should still get us the new own DC */
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hdc3 = GetDCEx(hwnd3, NULL, DCX_USESTYLE);
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ok(hdc3 == hdc2, "Expected the same DC, got %p\n", hdc3);
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ok(ReleaseDC(hwnd3, hdc3) == TRUE, "ReleaseDC failed\n");
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/* Disable CS_OWNDC */
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ok(SetClassLongPtrA(hwnd1, GCL_STYLE, CS_CLASSDC) == (CS_OWNDC | CS_CLASSDC), "unexpected style\n");
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ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == CS_CLASSDC, "class style not set\n");
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/* This should get us the own DC */
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hdc3 = GetDCEx(hwnd3, NULL, 0);
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ok(hdc3 == hdc2, "Expected the same DC, got %p\n", hdc3);
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ok(ReleaseDC(hwnd3, hdc3) == TRUE, "ReleaseDC failed\n");
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/* This should still get us the new own DC */
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hdc3 = GetDCEx(hwnd3, NULL, DCX_USESTYLE);
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ok(hdc3 == hdc2, "Expected the same DC, got %p\n", hdc3);
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ok(ReleaseDC(hwnd3, hdc3) == TRUE, "ReleaseDC failed\n");
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/* cleanup for a second run */
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DestroyWindow(hwnd1);
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DestroyWindow(hwnd2);
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DestroyWindow(hwnd3);
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ok(UnregisterClass(pszClassName, GetModuleHandleA(0)) == TRUE,
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"UnregisterClass failed\n");
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/* Create class again with CS_OWNDC */
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atomClass = RegisterClassHelper(pszClassName, CS_OWNDC, WndProc);
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ok(atomClass != 0, "Failed to register class\n");
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hwnd1 = CreateWindowHelper(pszClassName, "Test Window1");
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ok(hwnd1 != NULL, "Failed to create hwnd1\n");
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/* This is the windows own DC, the class does not have a class DC yet */
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hdc1 = GetDCEx(hwnd1, NULL, 0);
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ok(hdc1 != NULL, "GetDCEx failed\n");
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ok(ReleaseDC(hwnd1, hdc1) == TRUE, "ReleaseDC failed\n");
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/* Enable only CS_CLASSDC */
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ok(SetClassLongPtrA(hwnd1, GCL_STYLE, CS_CLASSDC) == CS_OWNDC, "unexpected style\n");
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ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == CS_CLASSDC, "class style not set\n");
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/* Create a second window. Now we should create a class DC! */
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hwnd2 = CreateWindowHelper(pszClassName, "Test Window2");
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ok(hwnd2 != NULL, "Failed to create hwnd1\n");
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/* We expect a new DCE (the class DCE) */
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hdc2 = GetDCEx(hwnd2, NULL, DCX_USESTYLE);
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ok(hdc2 != NULL, "GetDCEx failed\n");
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ok(hdc2 != hdc1, "Expected different DCs\n");
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ok(ReleaseDC(hwnd2, hdc2) == TRUE, "ReleaseDC failed\n");
|
|
|
|
/* cleanup */
|
|
DestroyWindow(hwnd1);
|
|
DestroyWindow(hwnd2);
|
|
ok(UnregisterClass(pszClassName, GetModuleHandleA(0)) == TRUE,
|
|
"UnregisterClass failed\n");
|
|
}
|
|
|
|
static
|
|
void
|
|
Test_GetDCEx_CS_SwitchedStyle()
|
|
{
|
|
static const PSTR pszClassName = "TestClass_CS_SwitchedStyle";
|
|
ATOM atomClass;
|
|
HWND hwnd1, hwnd2;
|
|
|
|
atomClass = RegisterClassHelper(pszClassName, CS_OWNDC, WndProc);
|
|
ok(atomClass != 0, "Failed to register class\n");
|
|
|
|
hwnd1 = CreateWindowHelper(pszClassName, "Test Window1");
|
|
ok(hwnd1 != NULL, "Failed to create hwnd1\n");
|
|
|
|
ok(SetClassLongPtrA(hwnd1, GCL_STYLE, CS_CLASSDC) == CS_OWNDC, "unexpected style\n");
|
|
ok(GetClassLongPtrA(hwnd1, GCL_STYLE) == CS_CLASSDC, "class style not set\n");
|
|
|
|
hwnd2 = CreateWindowHelper(pszClassName, "Test Window2");
|
|
ok(hwnd2 != NULL, "Failed to create hwnd2\n");
|
|
|
|
DestroyWindow(hwnd1);
|
|
DestroyWindow(hwnd2);
|
|
ok(UnregisterClass(pszClassName, GetModuleHandleA(0)) == TRUE,
|
|
"UnregisterClass failed\n");
|
|
}
|
|
|
|
START_TEST(GetDCEx)
|
|
{
|
|
Test_GetDCEx_Params();
|
|
Test_GetDCEx_Cached();
|
|
Test_GetDCEx_CS_OWNDC();
|
|
Test_GetDCEx_CS_CLASSDC();
|
|
Test_GetDCEx_CS_Mixed();
|
|
Test_GetDCEx_CS_SwitchedStyle();
|
|
}
|
|
|