Gabriel Ivăncescu : win32u: Don't clip captured mouse pointer if it's done by the system.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 19d2dc0dfc22d0fc1255a462be6494906b9bd3e8
URL:    https://gitlab.winehq.org/wine/wine/-/commit/19d2dc0dfc22d0fc1255a462be64949...

Author: Gabriel Ivăncescu <gabrielopcode(a)gmail.com>
Date:   Thu Jul 27 16:30:04 2023 +0300

win32u: Don't clip captured mouse pointer if it's done by the system.

We have similar checks in X11DRV_SetCapture for example, where this would
have been moved before the merge to win32u.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55231
Signed-off-by: Gabriel Ivăncescu <gabrielopcode(a)gmail.com>

---

 dlls/win32u/input.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/dlls/win32u/input.c b/dlls/win32u/input.c
index 0c462f42675..1f9e48423fc 100644
--- a/dlls/win32u/input.c
+++ b/dlls/win32u/input.c
@@ -2461,6 +2461,13 @@ BOOL WINAPI NtUserIsMouseInPointerEnabled(void)
     return FALSE;
 }
 
+static BOOL is_captured_by_system(void)
+{
+    GUITHREADINFO info;
+    info.cbSize = sizeof(info);
+    return NtUserGetGUIThreadInfo( GetCurrentThreadId(), &info ) && info.hwndCapture && (info.flags & (GUI_INMOVESIZE | GUI_INMENUMODE));
+}
+
 /***********************************************************************
  *      clip_fullscreen_window
  *
@@ -2486,7 +2493,7 @@ BOOL clip_fullscreen_window( HWND hwnd, BOOL reset )
 
     if (!NtUserGetWindowRect( hwnd, &rect )) return FALSE;
     if (!NtUserIsWindowRectFullScreen( &rect )) return FALSE;
-    if (get_capture()) return FALSE;
+    if (is_captured_by_system()) return FALSE;
     if (NtGetTickCount() - thread_info->clipping_reset < 1000) return FALSE;
     if (!reset && clipping_cursor && thread_info->clipping_cursor) return FALSE;  /* already clipping */