Knowledge Base :: How can I upload or save each image in buffer as a separate image file?

Search the Knowledgebase

Browse by Category

Knowledgebase Home > Dynamic Web TWAIN > Develop with Dynamic Web TWAIN > Save & Upload & Load Images

How can I upload or save each image in buffer as a separate image file?

1. The SaveAs*** method can be used to save a specified image in buffer as an image file. Currently, Dynamic Web TWAIN supports BMP, PNG, JPEG, PDF and TIFF. Click here to get more information..

2. The HTTPUploadThroughPost method can be used to upload a specified image in buffer as an image file. Click here to get more information about this method.

Here is a sample of saving each image in buffer as a separate PDF file.

Code:

//JavaScript
function btnUpload_onclick()
{
   var i;

   var strActionPage;
   var strHostIP;

   var CurrentPathName = unescape(location.pathname); // get current PathName in plain ASCII
   var CurrentPath = CurrentPathName.substring(0, CurrentPathName.lastIndexOf("/") + 1);
   strActionPage = CurrentPath + "SaveToFile.aspx"; //the ActionPage's file path

   strHostIP = "localhost";        //the host's ip or name

   frmScan.DynamicWebTwain1.HTTPPort = 80;
   for (i=0; i<frmScan.DynamicWebTwain1.HowManyImagesInBuffer; i++)
   {
      frmScan.DynamicWebTwain1.HTTPUploadThroughPost(strHostIP, i, strActionPage, i+".PDF");
   }
}