LAnnAutomation::GetDpiX

#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.

Returns

The current DPI 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.

See Also

Functions:

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

Topics:

Annotation Functions: Working with the Toolbar

 

Implementing Annotations

 

Automated User Interface for Annotations

Example

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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