L_TwainShowProgress

Summary

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

Syntax

L_LTTWN_API L_INT L_TwainShowProgress(hSession, bShow)

Parameters

HTWAINSESSION hSession

Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.

L_BOOL bShow

Flag that indicates whether to display a progress indicator during image acquisition from the current TWAIN source. Possible values are:

Returns

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_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; 
}