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#1 Posted : Wednesday, April 27, 2011 5:48:57 AM(UTC)

tpinc  
tpinc

Groups: Registered
Posts: 11


Hi All,

I'm needing to convert a compressed or otherwise formatted image with LEADTools to a GDI+ image for custom GDI+ drawing. The problem is that when I use the RasterImageconverter.ConvertToImage it is only taking the first page of the image... not all pages. is there another method or a flag to do this?


Dim oCodec As Leadtools.Codecs.RasterCodecs = Nothing
Dim oImage As Leadtools.RasterImage = Nothing
Dim oGDIImage As System.Drawing.Image = Nothing

oCodec = New Leadtools.Codecs.RasterCodecs

oImage = oCodec.Load(sImagePathToPrint)

oGDIImage = Leadtools.Drawing.RasterImageConverter.ConvertToImage(oImage, Leadtools.Drawing.ConvertToImageOptions.None)
 

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#2 Posted : Thursday, April 28, 2011 5:34:38 AM(UTC)
Maen Hasan

Groups: Registered, Tech Support
Posts: 1,328

Was thanked: 1 time(s) in 1 post(s)

There is no direct way to convert a Multipage RasterImage to Multi-frame System.Drawing.Image object and keep all pages.
To workaround this issue, you can use something like the following code:
+------------+
tempImage = codecs.Load(@"C:\DelMe\Multi.tif");
List<Image> images = new List<Image>();

for (int i = 1; i <= tempImage.PageCount; i++)
{
System.Drawing.Image oGDIImage;
tempImage.Page = i;
oGDIImage = Leadtools.Drawing.RasterImageConverter.ConvertToImage(tempImage, Leadtools.Drawing.ConvertToImageOptions.None);
images.Add(oGDIImage);        
}
+------------+

Thanks,
Maen Badwan
LEADTOOLS Technical Support
 
#3 Posted : Monday, May 2, 2011 7:28:40 AM(UTC)

tpinc  
tpinc

Groups: Registered
Posts: 11


I actually stumbled on an easier method to do it. I simply save the image to a known GDI+ compatible temp file and then open with GDI+, in my case a CCITT4 TIFF. Once finished I clean up the temp file.
 
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