LTwain::AcquireCallBack

Summary

Called twice for each page scanned using LTwain::AcquireMulti or LTwain::FastAcquire.

Syntax

virtual L_VOID LTwain::AcquireCallBack (nPage, pszFileName, bFinishScan)

Parameters

L_INT nPage

Number of the page being acquired

L_TCHAR * pszFileName

Character string containing the name of the file in which to save the scanned image(s).

L_BOOL bFinishScan

Flag that indicates the scanning status. Possible values are:

Returns

None.

Comments

This callback function will be enabled only if you enabled the callback functions by calling LBase::EnableCallBack.

This callback will be called two times. The callback is called the first time when the TWAIN source begins scanning the page. The callback is called the second time when the TWAIN source has finished scanning the page.

Required DLLs and Libraries

• LTTWN
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions

• LTwain::Acquire
• LTwain::AcquireList
• LTwain::InitSession
• LTwain::EndSession
• LTwain::OpenTemplateFile
• LTwain::CloseTemplateFile
• LTwain::TemplateDlg
• LTwain::AddCapabilityToFile
• LTwain::GetNumofCapsInFile
• LTwain::GetCapabilityFromFile
• LTwain::AcquireMulti
• LTwain::FastAcquire
• LTwain::FindFastConfig
• LTwain::GetScanConfigs
• LTwain::FreeScanConfig.

Topics

• How to Acquire from the Twain Source
• TWAIN Functionality:Property Functions

Example

For an example, refer to LTwain::AcquireMulti.