Scanning Functions

These functions allow you to control and acquire images from any TWAIN compatible scanners, digital cameras and frame grabbers. The scanning API includes both high-level and low level functions.

High Level Functions

ScanIsTwainAvailable Determines if any TWAIN devices are installed.

ScanSelectSource Displays the TWAIN Source selection dialog allowing the user to select the scanner to use.

ScanAcquirePage Returns a handle to a DIB for the acquired image.

Low Level Functions

ScanLowInitTwainJob Returns a handle to a new Scanning Job.

ScanLowRegisterApp Specifies information about the calling application.

ScanLowSetScanArea Allows the application to specify the area to be scanned.

ScanLowSetScanDevice Allows the application to specify the device to be used.

ScanLowSetResolution Allows the application to specify the scanning resolution in DPI.

ScanLowSetBrightnessContrast Allows the application to setup the brightness and contrast to be used when acquiring the image.

ScanLowAcquirePages Initiates image acquisition. The application can specify the number of pages to acquire, whether to enable an Automatic Document Feeder (ADF), whether the TWAIN source should display its dialog and the color depth of the image data to be returned.

ScanLowCloseJob Called to free the resources allocated by the ScanLowInitTwainJob call.