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WIADataCallbackMBS class

Type Topic Plugin Version macOS Windows Linux iOS Targets
class Image Capture MBS Win Plugin 10.3 ❌ No ✅ Yes ❌ No ❌ No Desktop, Console & Web
Provides an application callback mechanism during data transfers from Windows Image Acquisition (WIA) hardware devices to applications.

Works on Windows 2000 Professional, Windows XP and Windows Server 2003.

  • event BandedDataCallback(message as Integer, Status as Integer, PercentComplete as Integer, Offset as Integer, Length as Integer, Buffer as memoryblock) as Integer
  • property Handle as Integer
  • 10 constants

Constants

Constant Value Description
kMessageData 2 One of the constants for the message parameter in the BandedDataCallback callback. The WIA system is transferring data to the application.
kMessageDataHeader 1 One of the constants for the message parameter in the BandedDataCallback callback. The application is receiving a header prior to receiving the actual data.
kMessageFilePreviewData 6 One of the constants for the message parameter in the BandedDataCallback callback. The WIA system is transferring preview data to the application.
kMessageFilePreviewDataHeader 7 One of the constants for the message parameter in the BandedDataCallback callback. The application is receiving a header prior to receiving the actual preview data.
kMessageNewPage 5 One of the constants for the message parameter in the BandedDataCallback callback. The data transfer is beginning a new page.
kMessageStatus 3 One of the constants for the message parameter in the BandedDataCallback callback. This invocation of the callback is sending only status information.
kMessageTermination 4 One of the constants for the message parameter in the BandedDataCallback callback. The data transfer is complete.
kStatusProcessingData 2 One of the constants for the status parameter in the BandedDataCallback callback. Data is currently being processed.
kStatusTransferFromDevice 1 One of the constants for the status parameter in the BandedDataCallback callback. Data is currently being transferred from the WIA device.
kStatusTransferToClient 4 One of the constants for the status parameter in the BandedDataCallback callback. Data is currently being transferred to the client's data buffer.

This class has no sub classes.

Some methods using this class:

Some examples using this class:


The items on this page are in the following plugins: MBS Win Plugin.


WebView2WindowFeaturesMBS   -   WIADataTransferInfoMBS


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