L_TwainShowProgress

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainShowProgress(hSession, bShow)

HTWAINSESSION hSession;

handle to an existing TWAIN session

L_BOOL bShow;

flag

Enables or disables the display of a progress indicator during the acquisition of images from the current TWAIN source.

Parameter Description
hSession Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.
bShow Flag that indicates whether to display a progress indicator during image acquisition from the current TWAIN source. Possible values are:
  Value Meaning
  TRUE Displays progress indicator during image acquisition.
  FALSE Hides the progress indicator during image acquisition

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function should be called after calling the L_TwainStartCapsNeg function and before calling the L_TwainEndCapsNeg function.

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:

L_TwainSetTransferOptions, L_TwainGetTransferOptions, L_TwainGetSupportedTransferMode, L_TwainSetResolution, L_TwainGetResolution, L_TwainSetImageFrame, L_TwainGetImageFrame, L_TwainSetImageUnit, L_TwainGetImageUnit, L_TwainSetImageBitsPerPixel, L_TwainGetImageBitsPerPixel, L_TwainSetImageEffects, L_TwainGetImageEffects, L_TwainSetAcquirePageOptions, L_TwainGetAcquirePageOptions, L_TwainSetRGBResponse, L_TwainEnableDuplex, L_TwainGetDuplexOptions, L_TwainSetMaxXferCount, L_TwainGetMaxXferCount

Topics:

Getting and Setting Capabilities

 

TWAIN Functionality: Capability Functions

Example

L_LTTWNTEX_API L_INT  TwainShowProgressExample(HTWAINSESSION hSession) 
{ 
   L_INT nRet; 
   nRet = L_TwainStartCapsNeg (hSession); 
   if(nRet != SUCCESS) 
      return nRet; 
   nRet = L_TwainShowProgress(hSession, TRUE); 
   if(nRet != SUCCESS) 
      return nRet; 
   nRet = L_TwainEndCapsNeg (hSession); 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 
} 

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