public byte[] imagereduce(System.Drawing.Image imgInput, int maxImageSize)
{
int tWidth;
int tHeight;
double widthHeightRatio = (double)imgInput.Width / (double)imgInput.Height;
// If width greater than height, then width should be max image size, otherwise height should be.
// Image should keep the same proportions.
//tWidth = maxImageSize;
//tHeight = (int)(maxImageSize / widthHeightRatio);
if (widthHeightRatio > 1.0)
{
tWidth = maxImageSize;
tHeight = (int)(maxImageSize / widthHeightRatio);
}
else
{
tWidth = (int)(maxImageSize * widthHeightRatio);
tHeight = maxImageSize;
}
//Session["imgheight"] = tHeight;
//Session["imgwidth"] = tWidth;
System.Drawing.Image.GetThumbnailImageAbort myCallBack = new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);
System.Drawing.Image myThumbnail = imgInput.GetThumbnailImage(tWidth, tHeight, myCallBack, IntPtr.Zero);
//System.Drawing.Graphics gr = System.Drawing.Graphics.FromImage(myThumbnail);
//gr.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
//gr.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
//gr.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
//System.Drawing.Rectangle rectDestination = new System.Drawing.Rectangle(0, 0, tWidth, (int)tHeight);
//System.Drawing.Imaging.ImageCodecInfo codec = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders()[1];
////Set the parameters for defining the quality of the thumbnail... here it is set to 100%
//System.Drawing.Imaging.EncoderParameters eParams = new System.Drawing.Imaging.EncoderParameters(1);
//eParams.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 100L);
//gr.DrawImage(myThumbnail, rectDestination, 0, 0, tWidth, tHeight, System.Drawing.GraphicsUnit.Pixel);
////myThumbnail.Save(Server.MapPath(sSavePath + sThumbFile));
System.IO.MemoryStream ms = new System.IO.MemoryStream();
//myThumbnail.Save(ms, codec,eParams);
myThumbnail.Save(ms, ImageFormat.Jpeg);
byte[] bitmapData = ms.ToArray();
return bitmapData;
}
public bool ThumbnailCallback()
{
return false;
}
public bool checkext(string ext)
{
ext = ext.ToLower();
if (ext == ".jpg"){return true;}
else if (ext == ".bmp"){ return true;}
else if (ext == ".gif"){ return true;}
else if (ext == "jpg") { return true;}
else if (ext == ".png")
{
return true;
}
else if (ext == ".jpeg")
{
return true;
}
else if (ext == "png")
{
return true;
}
else if (ext == "bmp")
{
return true;
}
else if (ext == "gif")
{
return true;
}
else if (ext == "jpeg")
{
return true;
}
else
{
return false;
}
}
--
www.cinehour.com
