GdPicture Imaging SDK - Live Support Center

[varcarme]

Hi Loic

Maybe I'm going about this entirely the wrong way?

I want to create <x> number of thumbnail images from one multi-page TIFF image.

Here's the code I'm using:

Code: Select all


oImage = ThisForm.oGDPicture.TiffCreateMultiPageFromFile(ThisForm.cWorkImg)

ThisForm.oGDPicture.TiffSelectPage(oImage, 3)   //Select page 3

oThumb = ThisForm.oGDPicture.CreateThumbnail(oImage, 50, 50)   // Create New Image 50 x 50

ThisForm.oGDPicture.TiffSaveMultiPageToFile(oThumb, "LOCAL\WORK\XXX.TIF")



Can you help?

[Loïc]

Do you want to create a thubmnail of the page 3 of your multipage tiff ?

If yes:

Code: Select all

oThumb = Imaging1.CreateThumbnail(oImage, 50, 50)
ThisForm.oGDPicture.SetNativeImage (oThumb)
ThisForm.oGDPicture.SaveAsJPEG ("thumb.jpg")
ThisForm.oGDPicture.CloseImage (oThumb)
ThisForm.oGDPicture.SetNativeImage (oImage)

Best regards,

Loïc

[varcarme]

Thanks Loïc

I noticed though that the resulting JPEG ( or TIFF if I use ThisForm.oGDPicture.SaveAsTIFF() ) has the same dimensions as the original image.

I assumed that it would be a) much smaller in size (kb) than the original and b) be smaller in terms of it's dimensions

Am I missing something?

[Loïc]

Hi,

Normally, you should get a 50 per 50 pixel bitmap.
If your original image is larger that 50x50 the resulting saved thumbnail must be smaller.

Check first, the resulting thumbnail dimensions. If it has no 50x50 size you have an error in your code. If you don't know what, write here the code snippet you are using and I will correct it.


Best regards,

Loïc