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comctl32: Add NULL checks to SetWindowSubclass (Valgrind).

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Signed-off-by: Sven Baars <sven.wine@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Sven Baars 2018-09-19 19:44:18 +02:00 committed by Alexandre Julliard
parent 43f44ffb37
commit 04847e68f8
2 changed files with 26 additions and 8 deletions
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3
dlls/comctl32/commctrl.c
View file

@ -1082,6 +1082,9 @@ BOOL WINAPI SetWindowSubclass (HWND hWnd, SUBCLASSPROC pfnSubclass,
TRACE ("(%p, %p, %lx, %lx)\n", hWnd, pfnSubclass, uIDSubclass, dwRef);
if (!hWnd || !pfnSubclass)
return FALSE;
/* Since the window procedure that we set here has two additional arguments,
* we can't simply set it as the new window procedure of the window. So we
* set our own window procedure and then calculate the other two arguments

31
dlls/comctl32/tests/subclass.c
View file

@ -218,46 +218,61 @@ static LRESULT WINAPI wnd_proc_sub(HWND hwnd, UINT message, WPARAM wParam, LPARA
static void test_subclass(void)
{
BOOL ret;
HWND hwnd = CreateWindowExA(0, "TestSubclass", "Test subclass", WS_OVERLAPPEDWINDOW,
100, 100, 200, 200, 0, 0, 0, NULL);
ok(hwnd != NULL, "failed to create test subclass wnd\n");
pSetWindowSubclass(hwnd, wnd_proc_sub, 2, 0);
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 2, 0);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 0);
SendMessageA(hwnd, WM_USER, 2, 0);
ok_sequence(Sub_BasicTest, "Basic");
pSetWindowSubclass(hwnd, wnd_proc_sub, 2, DELETE_SELF);
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 2, DELETE_SELF);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_DeletedTest, "Deleted");
SendMessageA(hwnd, WM_USER, 1, 0);
ok_sequence(Sub_AfterDeletedTest, "After Deleted");
pSetWindowSubclass(hwnd, wnd_proc_sub, 2, 0);
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 2, 0);
ok(ret == TRUE, "Expected TRUE\n");
orig_proc_3 = (WNDPROC)SetWindowLongPtrA(hwnd, GWLP_WNDPROC, (LONG_PTR)wnd_proc_3);
SendMessageA(hwnd, WM_USER, 1, 0);
SendMessageA(hwnd, WM_USER, 2, 0);
ok_sequence(Sub_OldAfterNewTest, "Old after New");
pSetWindowSubclass(hwnd, wnd_proc_sub, 4, 0);
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, 0);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 0);
ok_sequence(Sub_MixTest, "Mix");
/* Now the fun starts */
pSetWindowSubclass(hwnd, wnd_proc_sub, 4, SEND_NEST);
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, SEND_NEST);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_MixAndNestTest, "Mix and nest");
pSetWindowSubclass(hwnd, wnd_proc_sub, 4, SEND_NEST | DELETE_SELF);
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, SEND_NEST | DELETE_SELF);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_MixNestDelTest, "Mix, nest, del");
pSetWindowSubclass(hwnd, wnd_proc_sub, 4, 0);
pSetWindowSubclass(hwnd, wnd_proc_sub, 5, DELETE_PREV);
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 4, 0);
ok(ret == TRUE, "Expected TRUE\n");
ret = pSetWindowSubclass(hwnd, wnd_proc_sub, 5, DELETE_PREV);
ok(ret == TRUE, "Expected TRUE\n");
SendMessageA(hwnd, WM_USER, 1, 1);
ok_sequence(Sub_MixDelPrevTest, "Mix and del prev");
ret = pSetWindowSubclass(NULL, wnd_proc_sub, 1, 0);
ok(ret == FALSE, "Expected FALSE\n");
ret = pSetWindowSubclass(hwnd, NULL, 1, 0);
ok(ret == FALSE, "Expected FALSE\n");
DestroyWindow(hwnd);
}