public static void PatchDisplayConfig(DisplayConfiguration config)
{
var lookupConfig = QueryDisplayConfig(QueryDisplayFlags.AllPaths);
var idCache = new Dictionary <uint, LUID>();
for (int i = 0; i < config.DisplayPaths.Length; i++)
{
uint id;
LUID adapterId;
id = config.DisplayPaths[i].SourceInfo.Id;
adapterId = config.DisplayPaths[i].SourceInfo.AdapterId;
config.DisplayPaths[i].SourceInfo.AdapterId = LookupAdapterId(lookupConfig, idCache, id, adapterId);
id = config.DisplayPaths[i].TargetInfo.Id;
adapterId = config.DisplayPaths[i].TargetInfo.AdapterId;
config.DisplayPaths[i].TargetInfo.AdapterId = LookupAdapterId(lookupConfig, idCache, id, adapterId);
}
for (int i = 0; i < config.DisplayModes.Length; i++)
{
uint id;
LUID adapterId;
id = config.DisplayModes[i].Id;
adapterId = config.DisplayModes[i].AdapterId;
config.DisplayModes[i].AdapterId = LookupAdapterId(lookupConfig, idCache, id, adapterId);
}
}
private static LUID?FindAdapterId(DisplayConfiguration config, uint id)
{
var matchingTargetPath = config.DisplayPaths
.Cast <DisplayConfigPathInfo?>()
.FirstOrDefault(p => p.Value.TargetInfo.Id == id);
if (matchingTargetPath.HasValue)
{
var adapterId = matchingTargetPath.Value.TargetInfo.AdapterId;
Debug.WriteLine($"TARGET PATH MATCH: Id {id} -> AdapterId {adapterId}");
return(adapterId);
}
var matchingSourcePath = config.DisplayPaths
.Cast <DisplayConfigPathInfo?>()
.FirstOrDefault(p => p.Value.SourceInfo.Id == id);
if (matchingSourcePath.HasValue)
{
var adapterId = matchingSourcePath.Value.SourceInfo.AdapterId;
Debug.WriteLine($"SOURCE PATH MATCH: Id {id} -> AdapterId {adapterId}");
return(adapterId);
}
Debug.WriteLine($"No MATCH: Id {id}");
return(null);
}
private static LUID LookupAdapterId(DisplayConfiguration config, Dictionary <uint, LUID> idCache, uint id, LUID oldAdapterId)
{
if (idCache.TryGetValue(id, out LUID adapterId))
{
return(adapterId);
}
adapterId = FindAdapterId(config, id) ?? FindAdapterId(config, 0) ?? oldAdapterId;
idCache[id] = adapterId;
return(adapterId);
}
public static bool SetDisplayConfig(DisplayConfiguration config, bool persistent = false)
{
var flags = SdcFlags.Apply | SdcFlags.UseSuppliedDisplayConfig;
if (persistent)
{
flags |= SdcFlags.SaveToDatabase;
}
var errorCode = User32.SetDisplayConfig(
(uint)config.DisplayPaths.Length, config.DisplayPaths,
(uint)config.DisplayModes.Length, config.DisplayModes,
flags);
if (errorCode != 0)
{
Console.Error.WriteLine("SetDisplayConfig Error: " + errorCode);
}
return(errorCode == 0);
}