public override IEnumerable <Display> GetActiveDisplays()
{
DisplayConfigTopologyId topologyId;
var pathWraps = CCDHelpers.GetPathWraps(QueryDisplayFlags.OnlyActivePaths, out topologyId);
// convert pathWrap elements to IDisplay elements(actually Win7Display elements)
return(pathWraps.Select(CreateDisplay));
}
/// <summary>
/// Creates new instance of Win7Display
/// </summary>
/// <returns></returns>
private Display CreateDisplay(DisplayConfigPathWrap pathWrap)
{
var path = pathWrap.Path;
var sourceModeInfo = pathWrap.Modes.First(x => x.infoType == DisplayConfigModeInfoType.Source);
var origin = new Point
{
X = sourceModeInfo.sourceMode.position.x,
Y = sourceModeInfo.sourceMode.position.y
};
var resolution = new Size
{
Width = sourceModeInfo.sourceMode.width,
Height = sourceModeInfo.sourceMode.height
};
// TODO; MAKE SURE THAT IT IS POSSIBLE TO DIVIDE THIS
// WHAT IF DENOMINATOR IS ZERO?!
var refreshRate =
(int)Math.Round((double)path.targetInfo.refreshRate.numerator / path.targetInfo.refreshRate.denominator);
var rotationOriginal = path.targetInfo.rotation;
// query for display name.
DisplayConfigSourceDeviceName displayConfigSourceDeviceName;
var displayName = "<unidentified>"; // TODO refactor it out
var nameStatus = CCDHelpers.GetDisplayConfigSourceDeviceName(sourceModeInfo,
out displayConfigSourceDeviceName);
if (nameStatus == StatusCode.Success)
{
displayName = displayConfigSourceDeviceName.viewGdiDeviceName;
}
return(new Display
{
Resolution = resolution,
Origin = origin,
Rotation = rotationOriginal.ToScreenRotation(),
RefreshRate = refreshRate,
Name = displayName,
IsActive = true
});
}