Setting up the Image Resolution in HTML/JavaScript web code

sudarshan · **Joined:** Tue Oct 18, 2005 1:30 pm **Posts:** 13

Hi,

I need to setup the image resolution in HTML/Javascript web code. Could you please provide inputs and sample piece of code in Javascript.

Thanks,
Sudarshan

Catherine · **Joined:** Tue Mar 08, 2005 12:23 am **Posts:** 1075

Hi sudarshan

I have sent the sample code to your registered email box.

Thanks.

sudarshan · **Joined:** Tue Oct 18, 2005 1:30 pm **Posts:** 13

Hi,
Thanks for the code. I could able to setup the resolution. Can you provide me information on how to set the image size in html/javascript code.

Thanks,
Sudarshan

Catherine · **Joined:** Tue Mar 08, 2005 12:23 am **Posts:** 1075

Hi Sudarshan,

You can use ChangeImageSize method to set the the display size of the scanned image. Is this what you need?

Thanks.

cjizquierdo · **Joined:** Thu Feb 02, 2006 3:11 pm **Posts:** 3

I need to setup the image resolution in HTML/Javascript web code. Could you please provide inputs and sample piece of code in Javascript.

Catherine · **Joined:** Tue Mar 08, 2005 12:23 am **Posts:** 1075

You can set the image resolution through Resolution property. For example, you can input the following line of code:

Code:

frmSample.WebTwain1.Resolution = 100; //set Resolution

Is this what you want?

hseb · **Joined:** Thu May 18, 2006 11:13 pm **Posts:** 5

When I set the Resolution property to 300 and then alert() it, it shows 0 all the time. I do this in JavaScript before calling AcquireImage(). I also tried setting it like this: <param name="Resolution" value="300">. In the scanning software (HP PrecisionScan LTX) there is always its default value (200dpi).

Robert · **Joined:** Mon Mar 07, 2005 11:11 pm **Posts:** 866

Did you set the Resolution property after calling OpenSource()? Please make sure the Resolution property is used after calling OpenSource().

If you still have a problem, please let us know the error information(check ErrorCode property and ErrorString property).

Thanks.

hseb · **Joined:** Thu May 18, 2006 11:13 pm **Posts:** 5

I did not call OpenSource at all. I did not receive any error either. So is this sequence right? This seems to work.
frmScan.DynamicWebTwain1.OpenSource();
frmScan.DynamicWebTwain1.Resolution = 300;
frmScan.DynamicWebTwain1.AcquireImage();

Robert · **Joined:** Mon Mar 07, 2005 11:11 pm **Posts:** 866

Quote:

frmScan.DynamicWebTwain1.OpenSource();
frmScan.DynamicWebTwain1.Resolution = 300;
frmScan.DynamicWebTwain1.AcquireImage();

Yes. This is the right sequence.

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Setting up the Image Resolution in HTML/JavaScript web code

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