Need to resize eff files RSS

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  eric2820

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  Need to resize eff files

  Mar 26, 2012 10:09 AM|LINK

  I have a new contract job and the company is using the .eff file format for some text that they want on their web page.

  I imported a resize class that works with .jpg and .bmp files but fails to load .eff files.

  I'm looking for how to modify the resize class to work with .eff files.

  Eric
  
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  • Moved by XIII on Mar 29, 2012 11:33 AM
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  Mamba Dai - ...

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  Re: Need to resize eff files

  Mar 28, 2012 06:12 AM|LINK

  Hi,

  eric2820

  but fails to load .eff files.

  What error you got?

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  eric2820

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  Re: Need to resize eff files

  Mar 28, 2012 02:14 PM|LINK

  The first thing that the program does is try to create a bitmap, but creating a bitmap of an .EFF file results in a null bitmap. That causes an exception further into the program but the root cause is a null bitmap!

  Eric
  
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  Mamba Dai - ...

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  Re: Need to resize eff files

  Mar 29, 2012 07:00 AM|LINK

  eric2820

  but creating a bitmap of an .EFF file results in a null bitmap.

  Could you share your source code creating a bitmap of an.EFF file?

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  eric2820

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  Re: Need to resize eff files

  Mar 29, 2012 11:07 AM|LINK

  public static MemoryStream ResizePicture( byte[] image, Size newsize, ImageFormat format )

  {
    using ( Bitmap newbmp = new Bitmap( newsize.Width, newsize.Height ), oldbmp = Bitmap.FromStream( new MemoryStream( image ) ) as Bitmap )
  

    { using ( Graphics newgraphics = Graphics.FromImage( newbmp ) )
  

    {
  

    // Set Graphics for best quality image
  

    newgraphics.CompositingQuality = CompositingQuality.HighQuality;
    newgraphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
    newgraphics.SmoothingMode = SmoothingMode.HighQuality;
    newgraphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
  
    newgraphics.Clear( Color.FromArgb( -1 ) );
    if ( (float) oldbmp.Width / (float) newsize.Width == (float) oldbmp.Height / (float) newsize.Height ) //Target size has a 1:1 aspect ratio
    {
     newgraphics.DrawImage( oldbmp, 0, 0, newsize.Width, newsize.Height );
    }
    else if ( (float) oldbmp.Width / (float) newsize.Width > (float) oldbmp.Height / (float) newsize.Height ) //There will be white space on the top and bottom
    {
     

  newgraphics.DrawImage( oldbmp, 0f, (float) newbmp.Height / 2f - ( oldbmp.Height * ( (float) newbmp.Width / (float) oldbmp.Width ) ) / 2f, (float) newbmp.Width, oldbmp.Height * ( (float) newbmp.Width / (float) oldbmp.Width ) );
    } 
    else if ( (float) oldbmp.Width / (float) newsize.Width < (float) oldbmp.Height / (float) newsize.Height ) //There will be white space on the sides
    {
    newgraphics.DrawImage( oldbmp, (float) newbmp.Width / 2f - ( oldbmp.Width * ( (float) newbmp.Height / (float) oldbmp.Height ) ) / 2f, 0f, oldbmp.Width * ( (float) newbmp.Height / (float) oldbmp.Height ), (float) newbmp.Height ); }
     // Write new image to memory stream so it can be returned as byte[]
     MemoryStream stream = new MemoryStream(); newbmp.Save( stream, format ); return stream;
    } 
   }
   } 

  Eric
  
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  Mamba Dai - ...

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  Re: Need to resize eff files

  Mar 30, 2012 04:00 AM|LINK

  You souce code is ok.

  You said the BitMap you created from extension EFF file is null with this code:

  oldbmp = Bitmap.FromStream(new MemoryStream(image)) as Bitmap

  Try another approach to create BitMap:

  Bitmap oldMap= new Bitmap(new MemoryStream(image));

  Not sure but try to test.

  Make sure you can retrieve the File stream from .EFF file, and don't read it to byte array. Pass it as one parameter to BitMap constructure directly.

  BTW, if it still doesn't wokr. Maybe the BitMap can't handle the .EFF file.

  Please mark the replies as answers if they help or unmark if not.
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  • Marked as answer by Ming Xu - MSFT on Apr 09, 2012 02:14 PM