EZTwain

EZTwainX InstalledSources Property

This read-only property returns a list of all the installed TWAIN devices, in the form of a collection of strings. Note that traditional TWAIN devices will appear in the list if their driver is installed on the system, whether or not the physical device is connected or turned on. On WinME, WinXP, and later platforms, WIA devices will appear in the list prefixed with "WIA-", but only if they are connected and active.

Here are some examples of loading the list of installed sources into a combo box or select element.

VBscript

   devs = EZTwain.InstalledSources
   For Each s In devs
      DevList.AddItem(s)
   Next s
   DevList.Text = EZTwain.DefaultSourceDevice    // select default device

Javascript

var devlist = document.getElementById('devlist');
// get list of installed sources, convert from VB array to Javascript array:
var devs = new VBArray(Eztwain.InstalledSources).toArray();
var defdev = Eztwain.DefaultSourceDevice;
devlist.length = 0;
for (var i = 0; i < devs.length; i++) {
   var elt=document.createElement('option');
   elt.text=devs[i];
   devlist.add(elt);
   if (elt.text==defdev) {
      devlist.selectedIndex = devlist.length-1;
   }
} // for