L_TwainSetCustomDSData

#include "l_bitmap.h"

L_LTTWN_API L_INT EXT_FUNCTION L_TwainSetCustomDSData(hSession, pCustomData, pszFileName)

HTWAINSESSION hSession;	handle to an existing TWAIN session
pTW_CUSTOMDSDATA pCustomData;	pointer to TW_CUSTOMDSDATA structure to be filled
L_TCHAR * pszFileName;	file name contains custom data to set

Sets the custom data of TWAIN data source.

This feature is available in version 16 or higher.

Parameter	Description
hSession	Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.
pCustomData	Pointer to a TW_CUSTOMDSDATA structure. This structure must be allocated and contains the custom data of TWAIN data source to set. Pass NULL if you need set data from file.
pszFileName	Character string that contains a file name for the custom data of valid TWAIN data source to load from. Pass NULL to set the data using the pCustomData.

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.

To get the custom data of TWAIN data source, call the L_TwainGetCustomDSData function.

To load the custom data of TWAIN data source from a file, pass valid file name to pszFileName and NULL to pCustomData.

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.

Example

L_INT TwainSetCustomDSDataExample(HTWAINSESSION hSession, L_TCHAR * pszFileName) 
{ 
   L_TwainStartCapsNeg(hSession); 
   L_INT nRet; 
   nRet = L_TwainSetCustomDSData(hSession, NULL, pszFileName); 
   if (nRet != SUCCESS) 
   { 
      MessageBox (NULL, TEXT("Failed to set custom data source data"), TEXT("ERROR"), MB_OK); 
      return nRet; 
   } 
   L_TwainEndCapsNeg(hSession); 
   return SUCCESS; 
}

Help Version 19.0.2017.10.27

LEADTOOLS TWAIN C API Help

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Function References

Functions:	L_TwainSetCustomDSData, L_TwainGetCapability, L_TwainSetCapability
Topics:	Getting and Setting Capabilities
	TWAIN Functionality: Capability Functions