private Sprite CreateSpriteForBitmap(Bitmap bmp, bool remapColours, bool useRoomBackground, bool alphaChannel)
{
Sprite newSprite = Factory.NativeProxy.CreateSpriteFromBitmap(bmp, (SpriteImportMethod)SpriteImportWindow.SpriteImportMethod, remapColours, useRoomBackground, alphaChannel);
_currentFolder.Sprites.Add(newSprite);
return newSprite;
}