1 /*
2  * PROJECT:     ReactOS API tests
3  * LICENSE:     LGPL-2.1+ (https://spdx.org/licenses/LGPL-2.1+)
4  * PURPOSE:     Test for RedrawWindow
5  * COPYRIGHT:   Copyright 2018 Thomas Faber <thomas.faber@reactos.org>
6  */
7 
8 #include "precomp.h"
9 
10 static DWORD dwThreadId;
11 static BOOL got_paint;
12 
13 static
14 LRESULT
15 CALLBACK
16 WndProc(
17     _In_ HWND hWnd,
18     _In_ UINT message,
19     _In_ WPARAM wParam,
20     _In_ LPARAM lParam)
21 {
22     ok(GetCurrentThreadId() == dwThreadId, "Thread 0x%lx instead of 0x%lx\n", GetCurrentThreadId(), dwThreadId);
23     if (message == WM_PAINT)
24     {
25         got_paint = TRUE;
26     }
27     return DefWindowProcW(hWnd, message, wParam, lParam);
28 }
29 
30 
31 START_TEST(RedrawWindow)
32 {
33     HWND hWnd;
34     MSG msg;
35     HRGN hRgn;
36     BOOL ret;
37     int i;
38 
39     SetCursorPos(0,0);
40 
41     dwThreadId = GetCurrentThreadId();
42     RegisterSimpleClass(WndProc, L"CreateTest");
43 
44     hWnd = CreateWindowExW(0, L"CreateTest", NULL, 0,  10, 10, 20, 20,  NULL, NULL, 0, NULL);
45     ok(hWnd != NULL, "CreateWindow failed\n");
46 
47     ShowWindow(hWnd, SW_SHOW);
48 
49     while (PeekMessage( &msg, 0, 0, 0, PM_REMOVE ))
50     {
51         DispatchMessageA( &msg );
52     }
53 
54     ok(got_paint == TRUE, "Did not process WM_PAINT message\n");
55     got_paint = FALSE;
56 
57     hRgn = CreateRectRgn(0, 0, 1, 1);
58     ok(hRgn != NULL, "CreateRectRgn failed\n");
59     ret = RedrawWindow(hWnd, NULL, hRgn, RDW_INTERNALPAINT | RDW_INVALIDATE);
60     ok(ret == TRUE, "RedrawWindow failed\n");
61 
62     i = 0;
63     while (PeekMessage( &msg, 0, 0, 0, PM_REMOVE ))
64     {
65         RECORD_MESSAGE(1, msg.message, POST, 0, 0);
66         if (msg.message == WM_PAINT)
67         {
68             i++;
69             if (i == 10)
70             {
71                 ok(got_paint == FALSE, "Received unexpected WM_PAINT message\n");
72             }
73         }
74         if (msg.message != WM_PAINT || i >= 10)
75         {
76             DispatchMessageA( &msg );
77         }
78     }
79 
80     ok(i == 10, "Received %d WM_PAINT messages\n", i);
81     ok(got_paint == TRUE, "Did not process WM_PAINT message\n");
82 
83     TRACE_CACHE();
84 
85     DeleteObject(hRgn);
86 }
87