comctl32/treeview: Erase background when painting over supplied hdc.
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63dbf6ee3f
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b65423c546
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@ -1265,6 +1265,39 @@ static void test_TVS_SINGLEEXPAND(void)
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DestroyWindow(hTree);
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}
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static void test_WM_PAINT(void)
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{
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HWND hTree;
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COLORREF clr;
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LONG ret;
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RECT rc;
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HDC hdc;
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hTree = create_treeview_control();
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clr = SendMessageA(hTree, TVM_SETBKCOLOR, 0, RGB(255, 0, 0));
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ok(clr == -1, "got %d, expected -1\n", clr);
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hdc = GetDC(hMainWnd);
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GetClientRect(hMainWnd, &rc);
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FillRect(hdc, &rc, GetStockObject(BLACK_BRUSH));
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clr = GetPixel(hdc, 1, 1);
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ok(clr == RGB(0, 0, 0), "got 0x%x\n", clr);
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ret = SendMessageA(hTree, WM_PAINT, (WPARAM)hdc, 0);
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ok(ret == 0, "got %d\n", ret);
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clr = GetPixel(hdc, 1, 1);
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ok(clr == RGB(255, 0, 0) || broken(clr == RGB(0, 0, 0)) /* win98 */,
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"got 0x%x\n", clr);
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ReleaseDC(hMainWnd, hdc);
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DestroyWindow(hTree);
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}
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START_TEST(treeview)
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{
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HMODULE hComctl32;
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@ -1330,6 +1363,7 @@ START_TEST(treeview)
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test_treeview_classinfo();
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test_expandnotify();
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test_TVS_SINGLEEXPAND();
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test_WM_PAINT();
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if (!load_v6_module(&ctx_cookie, &hCtx))
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{
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@ -2921,6 +2921,7 @@ TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
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{
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hdc = hdc_ref;
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GetClientRect(infoPtr->hwnd, &rc);
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TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
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}
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else
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{
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