LTwain::StopFeeder

#include "ltwrappr.h"

L_INT LTwain::StopFeeder ()

Stop acquire images only from the feeder of the TWAIN source.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function stops the process of acquiring images using one of the following functions:

LTwain::Acquire

LTwain::AcquireMulti

In order to stop acquire images by calling the LTwain::Acquire function, call the LTwain::StopFeeder within the LTwain::BitmapCallBack function when its fired.

In order to stop acquire images by calling the LTwain::AcquireMulti function, call the LTwain::StopFeeder within the LTwain::AcquireCallBack function when its fired.

If the TWAIN source has no feeder, then this function will fail and return an error code.

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::AcquireCallBack, LTwain::BitmapCallBack
Topics:	How to Acquire from the TWAIN Source
	TWAIN Functionality: Property Functions

Example

class CMyTwain : public LTwain
{
public:
L_INT BitmapCallBack(pBITMAPHANDLE pBitmap);
HTWAINTEMPLATEFILE m_hFile;
};
L_INT CMyTwain::BitmapCallBack(pBITMAPHANDLE pBitmap)
{
StopFeeder();
return SUCCESS;
}
// initialize session and call this function
void TwainAcquire (pBITMAPHANDLE pBitmap, HWND hWnd)
{
L_INT nRet;
CMyTwain MyClass;
// Show the Twain Select Source UI
nRet = MyClass.SelectSource(NULL);
if (nRet != SUCCESS)
    MessageBox (NULL, TEXT("Error occurred while selecting the source."), TEXT("ERROR"), MB_OK);
MyClass.EnableCallBack (TRUE);
nRet = MyClass.Acquire( pBitmap, sizeof(BITMAPHANDLE), LTWAIN_SHOW_USER_INTERFACE, NULL);
if (nRet == SUCCESS)
    MessageBox(NULL, TEXT("The image acquisition process completed."), TEXT("Notice"), MB_OK);
else
    MessageBox(NULL, TEXT(" The image acquisition process failed!"), TEXT("Error"), MB_OK);
}