private MLResult InternalGetScreensInfo(out List <MLScreensScreenInfo> info)
{
info = new List <MLScreensScreenInfo>();
_screenInfoList.Initialize();
MLResult.Code resultCode = MLScreensNativeBindings.MLScreensGetScreenInfoListEx(ref _screenInfoList);
var result = MLResult.Create(resultCode);
if (!result.IsOk)
{
return(result);
}
long screensArrayAddress = _screenInfoList.Entries.ToInt64();
for (var i = 0; i < _screenInfoList.Count; ++i)
{
long entryAddress = screensArrayAddress +
i * Marshal.SizeOf(typeof(MLScreensNativeBindings.MLScreensScreenInfoExNative));
var entryPtr = new IntPtr(entryAddress);
var entryNative = (MLScreensNativeBindings.MLScreensScreenInfoExNative)Marshal.PtrToStructure(entryPtr,
typeof(MLScreensNativeBindings.MLScreensScreenInfoExNative));
MLScreensScreenInfo entry = entryNative.Data;
info.Add(entry);
}
resultCode = MLScreensNativeBindings.MLScreensReleaseScreenInfoListEx(ref _screenInfoList);
result = MLResult.Create(resultCode);
return(result);
}
private MLResult InternalUpdateScreenInfo(MLScreensScreenInfo info)
{
MLScreensNativeBindings.MLScreensScreenInfoExNative nativeScreenInfo = MLScreensNativeBindings.MLScreensScreenInfoExNative.Create();
nativeScreenInfo.Data = info;
MLResult.Code resultCode = MLScreensNativeBindings.MLScreensUpdateScreenInfo(ref nativeScreenInfo);
var result = MLResult.Create(resultCode);
return(result);
}
private MLResult InternalGetScreensInfo(ulong id, out MLScreensScreenInfo screenInfo)
{
var screenNative = MLScreensNativeBindings.MLScreensScreenInfoExNative.Create();
MLResult.Code resultCode = MLScreensNativeBindings.MLScreensGetScreenInfo(id, ref screenNative);
var result = MLResult.Create(resultCode);
if (!result.IsOk)
{
screenInfo = new MLScreensScreenInfo();
return(result);
}
else
{
screenInfo = screenNative.Data;
}
return(result);
}
/// <summary>
/// Updates screen info.
/// Only the screen this app was launched from is a valid one.
/// </summary>
/// <param name="screenInfo"/>
/// <returns>
/// MLResult.Result will be MLResult.Code.Ok if successful.
///
/// MLResult.Result will be MLResult.Code.InvalidParam if failed due to invalid input parameter.
///
/// MLResult.Result will be MLResult.Code.UnspecifiedFailure if failed due to internal error.
///
/// MLResult.Result will be MLResult.Code.ScreensServiceNotAvailable if failed due to the unavailability of the screens service.
///
/// MLResult.Result will be MLResult.Code.PrivilegeDenied if necessary privilege is missing.
///
/// MLResult.Result will be MLResult.Code.PermissionDenied if application does not have permission to get information about the specific screen.
///
/// MLResult.Result will be MLResult.Code.InvalidScreenId if the id for the screen is invalid.
/// </returns>
public static MLResult UpdateScreenInfo(MLScreensScreenInfo screenInfo)
{
return(Instance.InternalUpdateScreenInfo(screenInfo));
}
/// <summary>
/// Gets information for all system saved screens.
/// </summary>
/// <returns>
/// MLResult.Result will be MLResult.Code.Ok if successful.
///
/// MLResult.Result will be MLResult.Code.InvalidParam if failed due to invalid input parameter.
///
/// MLResult.Result will be MLResult.Code.UnspecifiedFailure if failed due to internal error.
///
/// MLResult.Result will be MLResult.Code.ScreensServiceNotAvailable if failed due to the unavailability of the screens service.
///
/// MLResult.Result will be MLResult.Code.PrivilegeDenied if necessary privilege is missing.
///
/// MLResult.Result will be MLResult.Code.PermissionDenied if application does not have permission to get information about the specific screen.
///
/// MLResult.Result will be MLResult.Code.InvalidScreenId if the id for the screen is invalid.
/// </returns>
public static MLResult GetScreensInfo(ulong id, out MLScreensScreenInfo info)
{
return(Instance.InternalGetScreensInfo(id, out info));
}
