#include "ltwrappr.h"

virtual L_DOUBLE LAnnAutomation::GetDpiX()

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


The current DPI value.

Required DLLs and Libraries


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


Win32, x64.

See Also


LAnnAutomation::GetAutoContainer, LAnnAutomation::SetDpiX, LAnnAutomation::SetDpiY, LAnnAutomation::GetDpiY, Class Members


Annotation Functions: Working with the Toolbar


Implementing Annotations


Automated User Interface for Annotations


This function gets the current dots per inch of the automation object

L_INT LAnnAutomation_GetDpiXExample(LAnnAutomation  * pAnnAutomation, HWND hWnd) 
   L_DOUBLE DPIx, DPIy; /* Dots per inch, horizontal and vertical */ 
   L_TCHAR szMessage[80]; /* Message buffer */ 
   /* Get the dots per inch */ 
   DPIx = pAnnAutomation->GetDpiX(); 
   DPIy = pAnnAutomation->GetDpiY(); 
   /* Display a message box with the result */ 
   wsprintf (szMessage, TEXT("%d horizontal, %d vertical"), (int)DPIx, (int)DPIy); 
   MessageBox (hWnd, szMessage, TEXT("Notice"), MB_OK); 
   return SUCCESS; 

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