Home › Forums › TWAIN Classic › Aspect Ratio
- This topic has 1 reply, 2 voices, and was last updated 16 years, 11 months ago by gabe.
- AuthorPosts
With some modification, I am using the TWAIN programmer toolkit to capture image with a web camera in my application. I need to set the aspect ratio – that is the crop width to crop height. What capabilities are available to do this operation and how can it be done?
I know that the source has this capabilty, because a screen can be launched for cropping when I use the software that comes with the camera. HOW CAN I INVOKE THIS CROP SCREEN OF THE SOURCE in my application? Thanks.
seems like you are asking how to negotiate the scan area.
If you’re asking about the scan area, then you might want to check icap_frames, just keep in mind icap_supportedSizes often has something to do with your results as well as Units if I remember correctly, and if the device supports icap_rotation or icap_orientation you’ll have to keep those in mind as well.- AuthorPosts