LTwain::SetResolution

Summary

Sets the horizontal and vertical resolution used to transfer images from the current TWAIN source.

Syntax

L_INT LTwain::SetResolution (pXRes, pYRes)

Parameters

pTW_FIX32 pXRes

The horizontal resolution value to set.

pTW_FIX32 pYRes

The vertical resolution value to set.

Returns

Comments

This function internally sets the horizontal and vertical resolution capabilities ICAP_XRESOLUTION and ICAP_YRESOLUTION. For more information on these capabilities, refer to the TWAIN specification.

To obtain the current resolution value, call the LTwain::GetResolution 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

• LTwain::SetTransferOptions
• LTwain::GetTransferOptions
• LTwain::GetSupportedTransferMode
• LTwain::GetResolution
• LTwain::SetImageFrame
• LTwain::GetImageFrame
• LTwain::SetImageUnit
• LTwain::GetImageUnit
• LTwain::SetImageBitsPerPixel
• LTwain::GetImageBitsPerPixel
• LTwain::SetImageEffects
• LTwain::GetImageEffects
• LTwain::SetAcquirePageOptions
• LTwain::GetAcquirePageOptions
• LTwain::SetRGBResponse
• LTwain::ShowProgress
• LTwain::EnableDuplex
• LTwain::GetDuplexOptions
• LTwain::SetMaxXferCount
• LTwain::GetMaxXferCount

Topics

• Getting and Setting Capabilities
• TWAIN Functionality: Capability Functions

Example

L_INT LTwain__SetResolutionExample(LTwain * plTwain)  
 
{ 
   L_INT       nRet = SUCCESS;  
   TW_FIX32    XRes, YRes;  
 
   nRet = plTwain->GetResolution (&XRes, &YRes);  
 
   if (nRet == SUCCESS)  
 
   { 
 
      if (XRes.Whole != 300)  
         XRes.Whole = YRes.Whole = 300;  
 
      nRet = plTwain->SetResolution(&XRes, &YRes);  
      if(nRet != SUCCESS) 
         return nRet; 
 
   } 
 
   return SUCCESS; 
}