bmptoolbar.cpp

visual c++ 实例编程

// BmpToolBar.cpp : implementation file
//

#include "stdafx.h"
#include "BitmapToolBarResrch.h"
#include "BmpToolBar.h"

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

/////////////////////////////////////////////////////////////////////////////
// CBmpToolBar

CBmpToolBar::CBmpToolBar()
{
	CBitmap tmp;
	tmp.LoadBitmap(IDB_BITMAP1);
	brush.CreatePatternBrush(&tmp);
}

CBmpToolBar::~CBmpToolBar()
{
}


BEGIN_MESSAGE_MAP(CBmpToolBar, CToolBar)
	//{{AFX_MSG_MAP(CBmpToolBar)
	ON_MESSAGE(TB_ADDBITMAP, OnSetMyBitmap)
	ON_MESSAGE(TB_REPLACEBITMAP, OnSetMyBitmap)
	ON_WM_ERASEBKGND()
	ON_WM_CTLCOLOR()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBmpToolBar message handlers

BOOL CBmpToolBar::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default
	CBitmap tmp;
	tmp.LoadBitmap(IDB_BITMAP1);
	RECT rect;
	GetWindowRect(&rect);
	ScreenToClient(&rect);
	pDC->FillRect(&rect,&brush);
	return TRUE;	
	return CToolBar::OnEraseBkgnd(pDC);
}

HBRUSH CBmpToolBar::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CToolBar::OnCtlColor(pDC, pWnd, nCtlColor);
	
	// TODO: Change any attributes of the DC here
	if(nCtlColor==CTLCOLOR_BTN)
	{
		pDC->SetBkMode(TRANSPARENT);
		return brush;
	}	
	// TODO: Return a different brush if the default is not desired
	return hbr;
}

LRESULT CBmpToolBar::OnSetMyBitmap(WPARAM wParam, LPARAM lParam)
{
	BITMAP bitmap;
	CBitmap tmp;
	tmp.LoadBitmap(IDB_BITMAP1);
	VERIFY(::GetObject((HBITMAP)tmp, sizeof(BITMAP), &bitmap));

	// add the bitmap to the common control toolbar
	TBADDBITMAP addBitmap;
	addBitmap.hInst = NULL; // makes TBADDBITMAP::nID behave a HBITMAP
	addBitmap.nID = (UINT)(HBITMAP)tmp;
	DefWindowProc(TB_ADDBITMAP,
		bitmap.bmWidth / 32, (LPARAM)&addBitmap);
	return 0L;
}