[PATCH] user32: When converting strings from A->W, ignore handles/resources
Fabian Maurer
dark.shadow4 at web.de
Mon Aug 9 16:55:24 CDT 2021
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51583
Signed-off-by: Fabian Maurer <dark.shadow4 at web.de>
---
dlls/user32/tests/msg.c | 3 +++
dlls/user32/winproc.c | 2 ++
2 files changed, 5 insertions(+)
diff --git a/dlls/user32/tests/msg.c b/dlls/user32/tests/msg.c
index 9867e319d58..5ea05b156d6 100644
--- a/dlls/user32/tests/msg.c
+++ b/dlls/user32/tests/msg.c
@@ -5991,6 +5991,9 @@ static void test_setwindowpos(void)
expect(winY, rc.bottom);
DestroyWindow(hwnd);
+
+ /* Test invalid text with WM_SETTEXT. This must not crash. */
+ SendMessageA(GetDesktopWindow(), WM_SETTEXT, 0, (LPARAM)55);
}
static void invisible_parent_tests(void)
diff --git a/dlls/user32/winproc.c b/dlls/user32/winproc.c
index f83d8b61a63..f4cf9f6e748 100644
--- a/dlls/user32/winproc.c
+++ b/dlls/user32/winproc.c
@@ -494,6 +494,8 @@ LRESULT WINPROC_CallProcAtoW( winproc_callback_t callback, HWND hwnd, UINT msg,
case LB_ADDFILE:
case EM_REPLACESEL:
if (!lParam) ret = callback( hwnd, msg, wParam, lParam, result, arg );
+ else if (IS_INTRESOURCE(lParam)) /* Check for handles/IDs similar to DEFWND_SetTextA */
+ return 0;
else
{
WCHAR *ptr, buffer[512];
--
2.32.0
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