private static DdsImage CreateDdsPreview(Stream stream)
{
Contract.Requires(stream != null);
stream.Seek(0, SeekOrigin.Begin);
DdsImage image = null;
try
{
image = new DdsImage(stream);
}
catch (Exception)
{
return(null);
}
if (!image.IsValid)
{
image.Dispose();
return(null);
}
stream.Dispose();
return(image);
}
/// <summary>
/// Set's preview to DDS image.
/// </summary>
/// <param name="stream">DDS image stream.</param>
private void SetDdsPreview(DdsImage image)
{
Contract.Requires(image != null);
IntPtr hBitmap = image.BitmapImage.GetHbitmap();
BitmapSource source = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
hBitmap,
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
this.PreviewImageBox.Source = source;
NativeMethods.DeleteObject(hBitmap);
image.Dispose();
ChangeControlsVisibilityForFileType(PreviewFileType.Dds);
SetTextWithTip(this.PreviewText, "Preview",
source.PixelWidth + "x" + source.PixelHeight);
}
