I'm using version 10 of GdPicture and let me know if it is possible to establish by code, the scan parameters, ie: Color or B&W, 300 dpis, paper size: Letter.
Yes, of course it is. In the GdPictureImaging class you will find methods with the name starting with Twain*.
The methods you are looking for are most probably TwainSetBitDepth, TwainSetResolution and TwainSetPaperSize.
Please refer to the corresponding documentation for more information as well as the other available methods.
I appreciate your kind reply and let me tell you that your recommendation was successful, but only if set to "true" the method "TwainSetHideUI" otherwise does not work.
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