LAnnContainer::SetDpiX

Summary

Sets the horizontal DPI (dots per inch) value that is used to translate user input, such as font size, that is expressed in physical measurements.

Syntax

#include "ltwrappr.h"

virtual L_INT LAnnContainer::SetDpiX(dDpiX, uFlags=0)

Parameters

L_DOUBLE dDpiX

The horizontal DPI value to set. Valid values are greater than or equal to 1.

If you pass 0 or a positive value less than 1, the value will default to 150. If you pass a negative value, the function will return an error.

L_UINT uFlags

Reserved for future use. You can pass 0.

Returns

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

Comments

Typically, if you are matching annotations to a bitmap, you can use the bitmap object's XResolution field to set this value.

Required DLLs and Libraries

LTANN
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

Example

L_INT LAnnContainer_SetDpiXExample(LAnnContainer  * pAnnContainer) 
{ 
   L_INT nRet; 
 
   nRet = pAnnContainer->SetDpiX(150); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = pAnnContainer->SetDpiY(150); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
}