public Image GetThumbnailImage(int thumbWidth, int thumbHeight,
GetThumbnailImageAbort callback,
IntPtr callbackData)
{
// TODO
return null;
}
public Image GetThumbnailImage(int v1, int v2, GetThumbnailImageAbort myCallback, IntPtr zero)
{
SKBitmap ans = new SKBitmap(v1, v2, SKColorType.Bgra8888, SKAlphaType.Premul);
nativeSkBitmap.ScalePixels(ans, SKFilterQuality.Medium);
return(new Bitmap()
{
nativeSkBitmap = ans, PixelFormat = PixelFormat.Format32bppArgb
});
}
public Image GetThumbnailImage(int thumbWidth, int thumbHeight, GetThumbnailImageAbort callback, IntPtr callbackData)
{
IntPtr zero = IntPtr.Zero;
int status = SafeNativeMethods.Gdip.GdipGetImageThumbnail(new HandleRef(this, this.nativeImage), thumbWidth, thumbHeight, out zero, callback, callbackData);
if (status != 0)
{
throw SafeNativeMethods.Gdip.StatusException(status);
}
return(CreateImageObject(zero));
}
public void FromManaged(GetThumbnailImageAbort managed)
{
if (managed is null)
{
_managed = null;
_nativeFunction = null;
}
else
{
_managed = data => managed() ? Interop.BOOL.TRUE : Interop.BOOL.FALSE;
_nativeFunction = (delegate * unmanaged <IntPtr, Interop.BOOL>)Marshal.GetFunctionPointerForDelegate(_managed);
}
}
// Thumbnail support
/// <summary>
/// Returns the thumbnail for this <see cref='Image'/>.
/// </summary>
public Image GetThumbnailImage(int thumbWidth, int thumbHeight, GetThumbnailImageAbort callback, IntPtr callbackData)
{
IntPtr thumbImage = IntPtr.Zero;
Gdip.CheckStatus(Gdip.GdipGetImageThumbnail(
new HandleRef(this, nativeImage),
thumbWidth,
thumbHeight,
out thumbImage,
callback,
callbackData));
return(CreateImageObject(thumbImage));
}
public Image GetThumbnailImage(int thumbWidth, int thumbHeight, GetThumbnailImageAbort callback, IntPtr callbackData)
{
if ((thumbWidth <= 0) || (thumbHeight <= 0))
{
throw new OutOfMemoryException("Invalid thumbnail size");
}
Image ThumbNail = new Bitmap(thumbWidth, thumbHeight);
//using (Graphics g = Graphics.FromImage(ThumbNail))
//{
// Status status = GDIPlus.GdipDrawImageRectRectI(g.nativeObject, nativeObject,
// 0, 0, thumbWidth, thumbHeight,
// 0, 0, this.Width, this.Height,
// GraphicsUnit.Pixel, IntPtr.Zero, null, IntPtr.Zero);
// GDIPlus.CheckStatus(status);
//}
throw new NotImplementedException();
return(ThumbNail);
}
public Image GetThumbnailImage(int thumbWidth, int thumbHeight, GetThumbnailImageAbort callback, IntPtr callbackData)
{
throw null;
}
public Image GetThumbnailImage(int thumbWidth, int thumbHeight, GetThumbnailImageAbort callback, System.IntPtr callbackData)
{
}
// Thumbnail support
/// <include file='doc\Image.uex' path='docs/doc[@for="Image.GetThumbnailImage"]/*' />
/// <devdoc>
/// Returns the thumbnail for this <see cref='System.Drawing.Image'/>.
/// </devdoc>
public Image GetThumbnailImage(int thumbWidth, int thumbHeight,
GetThumbnailImageAbort callback, IntPtr callbackData) {
IntPtr thumbImage = IntPtr.Zero;
int status = SafeNativeMethods.Gdip.GdipGetImageThumbnail(new HandleRef(this, nativeImage), thumbWidth, thumbHeight, out thumbImage,
callback, callbackData);
if (status != SafeNativeMethods.Gdip.Ok)
throw SafeNativeMethods.Gdip.StatusException(status);
return CreateImageObject(thumbImage);
}
public Image GetThumbnailImage(int thumbWidth, int thumbHeight,
GetThumbnailImageAbort callback,
IntPtr callbackData)
{
// TODO
return null;
}
public Image GetThumbnailImage(int thumbWidth, int thumbHeight, GetThumbnailImageAbort callback, System.IntPtr callbackData) {}
public GetThumbnailImageAbortMarshaller(GetThumbnailImageAbort managed)
{
_managed = data => managed() ? Interop.BOOL.TRUE : Interop.BOOL.FALSE;
_nativeFunction = (delegate * unmanaged <IntPtr, Interop.BOOL>)Marshal.GetFunctionPointerForDelegate(_managed);
}
