[PATCH v9 7/7] win32u: Read mode from the registry if GetCurrentDisplaySettings fails.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/win32u/sysparams.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/dlls/win32u/sysparams.c b/dlls/win32u/sysparams.c
index 4550f44235a..30467f5ef56 100644
--- a/dlls/win32u/sysparams.c
+++ b/dlls/win32u/sysparams.c
@@ -545,6 +545,8 @@ static BOOL adapter_get_registry_settings( const struct adapter *adapter, DEVMOD
 static BOOL adapter_get_current_settings( const struct adapter *adapter, DEVMODEW *mode )
 {
     DEVMODEW current_mode = {.dmSize = sizeof(DEVMODEW)};
+    HANDLE mutex;
+    HKEY hkey;
     BOOL ret;

lstrcpyW( current_mode.dmDeviceName, adapter->dev.device_name );
@@ -556,6 +558,17 @@ static BOOL adapter_get_current_settings( const struct adapter *adapter, DEVMODE
         return TRUE;
     }

+    mutex = get_display_device_init_mutex();
+
+    if (!config_key && !(config_key = reg_open_key( NULL, config_keyW, sizeof(config_keyW) ))) ret = FALSE;
+    else if (!(hkey = reg_open_key( config_key, adapter->config_key, lstrlenW( adapter->config_key ) * sizeof(WCHAR) ))) ret = FALSE;
+    else
+    {
+        ret = read_adapter_mode( hkey, ENUM_CURRENT_SETTINGS, mode );
+        NtClose( hkey );
+    }
+
+    release_display_device_init_mutex( mutex );
     return ret;
 }