An example of usage

Below is the part of the WM_PAINT (OnDraw) event handler:

		
	#include "upc_a.h"
	
	void OnDraw(HDC dc)
	    {
	    // =========================================================== 
	    // =              Start barcode drawing                      = 
	    // =========================================================== 
	    // An instance of the class 
	    UPC_A::UPC_A UpcA;
	    // The horizontal resolution of the output device
	    int xres=::GetDeviceCaps(dc,LOGPIXELSX); 
	    // The vertical resolution of the output device
	    int yres=::GetDeviceCaps(dc,LOGPIXELSY);
	
	    // The initialization of the instance of the class
	    UpcA.SetXResolution(xres);  
	    UpcA.SetYResolution(yres);
	    
	    // Our barcode will contain the number 03600029145
	    // and the Addon number 21826
	    UpcA.SetNumber(_T("03600029145"),_T("21826"));
	    
	    // Now we are ready to draw the barcode
	    // Draw the barcode!
	    UpcA.Draw(dc,100,200); 
	    // That is all! 
	    // =========================================================== 
	    // =                End barcode drawing                      = 
	    // =========================================================== 
	    }