Category » Work with Data Source

There were 10 articles found in this category:

1. Can I acquire images from a network scanner with Dynamic Web TWAIN?
   Dynamic Web TWAIN is compatible with TWAIN specification V1.9. If your network scanner supports TWAIN, it can work with Dynamic Web TWAIN. You can refer to the article below to check if your scanner is TWAIN compatible: http://kb.dynamsoft.com/questions/644/How+to+use+TWACKER+to+check+if+my+dev ...
2. How can I select a specific device without the source selection dialog?
   You can use the SelectSourceByIndex method to select a specific source as the current source. Code: Javascript var i; For (i= 0; i<Twain1.SourceCount;i++){ If (Twain1.SourceNameItems(i) = "Specified device name") Twain1.SelectSourceByIndex (i);//select the specific source //if ...
3. How to close the Select Source dialog box when I click the Cancel button?
   Symptom: In the Select Source dialog box (see the image below), when I click the Cancel button, the User Interface (UI) of the source is displayed unexpectedly, or the scanning process gets started, just like it does when I click the Select button. Resolution: In your scan page, please call the ...
4. How to make the User Interface close automatically after scanning?
   When you acquire images with the User Interface (UI), the UI does not close automatically after all the transfers end. To close the User Interface automatically, please refer to the 1. You can use the IfDisableSourceAfterAcquire property to disable the data source after all the transfers end. C ...
5. How to set whether the source displays the User Interface?
   You can use the IfShowUI property to set whether the Source displays the User Interface. Code: function btnScan_onclick() { frmScan.DynamicWebTwain1.SelectSource(); frmScan.DynamicWebTwain1.OpenSource(); frmScan.DynamicWebTwain1.IfShowUI = false; //don't display ...
6. Error message: Source is connected to maximum supported number of applications
   Symptoms: When you acquire images, you may receive the following error message returned by the ErrorString property: Cause: The problem may occur when the source is NOT disabled completely after a transfer ends or is used by other applications. Resolutions: 1. Please check if any other applicat ...
7. Error message: Source Manager unable to find the specified Source
   Symptoms: When you intend to acquire images, you may receive the following error message returned by the ErrorString property: Cause: No driver is installed on your computer. Resolutions: Please install the driver of a source correctly. To check if the source has been installed on your computer ...
8. Why does the source still show up in the Source Selection User Interface although I removed the source?
   Symptoms: The source may still show up in the Source Selection User Interface when you have removed the drive from your computer. Cause: Dynamic Web TWAIN gets the list of device drivers from Source Manager. The source is not removed from Source Manager when you remove it from your computer. R ...
9. Can I control cameras to take photos by Dynamic Web TWAIN?
   Dynamic Web TWAIN is compatible with TWAIN specification V1.9. If your camera supports TWAIN, it can work with Dynamic Web TWAIN. You can refer to the related article to check if your camera is TWAIN compatible.
10. How can I disable the progress indicator dialog?
    You can use the IfShowIndicator property to disable the progress indicator dialog during the acquisition and transfer, regardless of whether the Source's user interface is active. Code: 'VB Twain1.IfShowUI = False Twain1.IfDisableSourceAfterAcquire = True Twain1.OpenSource Twain1.IfShowIndicato ...