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user32/tests: Add recursive WM_SETCURSOR message tests.

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This test show that WM_SETCURSOR gets handled recursively, so in process_mouse_message(),
accept_hardware_message() can be called after sending WM_SETCURSOR and no changes are needed there.
This commit is contained in:
Zhiyi Zhang 2023-12-14 16:07:40 +08:00 • committed by Alexandre Julliard
parent f110dc58ba
commit 386e9fef2b
1 changed files with 47 additions and 0 deletions
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47
dlls/user32/tests/msg.c
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@ -12637,6 +12637,52 @@ static void test_recursive_hook(void)
DestroyWindow(hook_hwnd);
}
static int max_msg_depth;
static LRESULT WINAPI recursive_messages_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp)
{
static int msg_depth;
MSG msg;
if (message == WM_SETCURSOR && max_msg_depth < 25)
{
msg_depth++;
max_msg_depth = max(max_msg_depth, msg_depth);
PeekMessageW(&msg, NULL, 0, 0, PM_REMOVE);
msg_depth--;
}
return DefWindowProcA(hwnd, message, wp, lp);
}
static void test_recursive_messages(void)
{
WNDCLASSA cls = {0};
HWND hwnd;
cls.lpfnWndProc = recursive_messages_proc;
cls.hInstance = GetModuleHandleA(0);
cls.hCursor = LoadCursorA(0, (LPCSTR)IDC_ARROW);
cls.hbrBackground = GetStockObject(WHITE_BRUSH);
cls.lpszClassName = "TestRecursiveMsgClass";
register_class(&cls);
hwnd = CreateWindowExA(WS_EX_TOPMOST, "TestRecursiveMsgClass", NULL, WS_POPUP | WS_DISABLED | WS_VISIBLE, 0, 0,
100, 100, NULL, NULL, NULL, NULL);
ok(hwnd != NULL, "CreateWindowExA failed, error %ld.\n", GetLastError());
SetForegroundWindow(hwnd);
flush_events();
max_msg_depth = 0;
simulate_click(FALSE, 50, 50);
flush_events();
/* Expect recursive_messages_proc() gets called recursively for WM_SETCURSOR */
ok(max_msg_depth == 25, "Got expected %d.\n", max_msg_depth);
DestroyWindow(hwnd);
UnregisterClassA(cls.lpszClassName, cls.hInstance);
}
static const struct message ScrollWindowPaint1[] = {
{ WM_PAINT, sent },
{ WM_ERASEBKGND, sent|beginpaint },
@ -20464,6 +20510,7 @@ START_TEST(msg)
test_set_hook();
test_recursive_hook();
}
test_recursive_messages();
test_DestroyWindow();
test_DispatchMessage();
test_SendMessageTimeout();