To show an alert on scan button click

RohitKatoch · **Joined:** Sat Feb 26, 2011 4:09 am **Posts:** 1

Is there any way out to show an alert before scanning any document. I want to prompt the user that scan option selected is Colored, before scanning every document. What is the best way to do that? Please respond as early as possible.

Thanks in advance.

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

You can add the alert/warning message before AcquireImage. Here is a simple sample for you:

Code:

      function btnScan_onclick() 
      {
         frmScan.DynamicWebTwain1.SelectSource();
         frmScan.DynamicWebTwain1.OpenSource();   
         if(frmScan.DynamicWebTwain1.PixelType!=2)
         {
             alert("Please choose RGB.");
             return;
         }
         frmScan.DynamicWebTwain1.AcquireImage();
      }

Dynamsoft TWAIN Products

To show an alert on scan button click

Who is online