Re: Setting scanner properties

I am building a twain scan library that will support setting scanner properties in one of the 2 ways listed below.

1. Displaying the manufacturing user interface using ShowTemplateDlg and then following with a LoadTemplate method in order to load the saved settings.

2. Exposing methods to calling apps such as
public void SetRotationAngle(int angle)
{
TwainProperties props;
TwainImageResolutionProperties imageRes;
imageRes.RotationAngle = angle;
props.ImageResolution = imageRes;
twnSession.Properties = props;
}

But, setting the imageResProperties does not get stored in the template file. As a result, when I reload the template file, the imageResProperties settings are lost.
How do I make the 2 approaches work in synch ?.
Saving to template file must reflect on the twainsession imageResProperties and vice versa.

Thanks !
Vasu

Vasu,

Before I go into the technical details of your
question, I would like to raise the issue of creating a library. The LEADTOOLS
license agreement prohibits using our toolkit to create programming tools. You
are only supposed to use our functions to build one end-user application per toolkit license, not a toolkit. Please clarify this point.

Adam,

I am not creating a twain library that will be used for programming tools. By library, I meant a dll that will isolate our scanner functionality.

Thanks
Vasu

Vasu,

When
you run the code to save and load Twain templates, do you get the LoadTemplate and SaveTemplate events triggered for all capabilities?

If yes, you can set the properties for every capability when the event occurs.

For more information please refer to the help topics 'SaveTemplate Event' and 'LoadTemplate Event'.