testbtn.cpp

VC深入详解code.rar

// TestBtn.cpp : implementation file
//

#include "stdafx.h"
#include "Graphic.h"
#include "TestBtn.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CTestBtn

CTestBtn::CTestBtn()
{
}

CTestBtn::~CTestBtn()
{
}


BEGIN_MESSAGE_MAP(CTestBtn, CButton)
	//{{AFX_MSG_MAP(CTestBtn)
		// NOTE - the ClassWizard will add and remove mapping macros here.
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTestBtn message handlers

void CTestBtn::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	UINT uStyle = DFCS_BUTTONPUSH;

   // This code only works with buttons.
   ASSERT(lpDrawItemStruct->CtlType == ODT_BUTTON);

   // If drawing selected, add the pushed style to DrawFrameControl.
   if (lpDrawItemStruct->itemState & ODS_SELECTED)
      uStyle |= DFCS_PUSHED;

   // Draw the button frame.
   ::DrawFrameControl(lpDrawItemStruct->hDC, &lpDrawItemStruct->rcItem, 
      DFC_BUTTON, uStyle);

   // Get the button's text.
   CString strText;
   GetWindowText(strText);

   // Draw the button text using the text color red.
   COLORREF crOldColor = ::SetTextColor(lpDrawItemStruct->hDC, RGB(255,0,0));
   ::DrawText(lpDrawItemStruct->hDC, strText, strText.GetLength(), 
      &lpDrawItemStruct->rcItem, DT_SINGLELINE|DT_VCENTER|DT_CENTER);
   ::SetTextColor(lpDrawItemStruct->hDC, crOldColor);	
}