[PATCH 1/1] win32u: Limit the work area to the monitor rect.

[Zhiyi Zhang]

From: Zhiyi Zhang

When emulating a non-native aspect ratio display mode, calling map_monitor_rect() to map the
physical work area to the emulate work area might produce a rectangle larger than the emulated
display mode. For example, a physical work area (0,0,3840,2096) gets mapped to (0,-180,2560,1217)
when the emulated display mode is 2560x1080 and the physical display mode is 3840x2160. In such
cases, we should limit the work area to the emulated monitor rectangle.
---
 dlls/win32u/sysparams.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index 026403a1e06..463b6b00f68 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -1989,6 +1989,7 @@ static void monitor_get_info( struct monitor *monitor, MONITORINFO *info, UINT d
 {
     info->rcMonitor = monitor_get_rect( monitor, dpi, MDT_DEFAULT );
     info->rcWork = map_monitor_rect( monitor, monitor->rc_work, 0, MDT_RAW_DPI, dpi, MDT_DEFAULT );
+    intersect_rect( &info->rcWork, &info->rcWork, &info->rcMonitor );
     info->dwFlags = is_monitor_primary( monitor ) ? MONITORINFOF_PRIMARY : 0;

if (info->cbSize >= sizeof(MONITORINFOEXW))