Custom Captions (Including Multi-line Captions)

#include "StdAfx.h"
#include "SystemCaptionFont.h"

//////////////////////////////////////////////////////////////////////////////////////////
// CSystemCaptionFont provides self-contained access to the default system caption font.
//
// operator() returns a CFont pointer to a font created on demand.
//
// The destructor deletes the font object attached to CSystemCaptionFont.
//

///////////
// Destructor deletes any font object associated with CFont member.
//
CSystemCaptionFont::~CSystemCaptionFont() 
{ 
	if (m_Font.m_hObject) 
		m_Font.DeleteObject(); 
}

/////////////
// Returns a lazy-created CFont*
//
CFont* CSystemCaptionFont::operator()()
{
	if (!m_Font.m_hObject)  
		CreateFont();

	return &m_Font;
}

/////////////////
// Creates a caption font using the system caption defaults
//
void CSystemCaptionFont::CreateFont()
{
	NONCLIENTMETRICS ncm;
    memset(&ncm, 0, sizeof(ncm));
    ncm.cbSize = sizeof(ncm);
    SystemParametersInfo(SPI_GETNONCLIENTMETRICS, 0, &ncm, 0);

	if (m_Font.m_hObject)
		m_Font.DeleteObject();
	
    m_Font.CreateFontIndirect(&ncm.lfCaptionFont);
}