Re: Problem in BitBlt Function

From:

"Vipin" <Vipin@nospam.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 5 Aug 2006 15:43:42 +0530

Message-ID:

<#g2GWfHuGHA.4648@TK2MSFTNGP04.phx.gbl>

You need to use either StretchBlt OR use GetBitmap to get the dimensions to
be used in BitBlt

--
Vipin Aravind
http://www.explorewindows.com/Blogs

"Ajit Surana" <suranaajit@gmail.com> wrote in message
news:1154771182.984176.173590@m79g2000cwm.googlegroups.com...

Code for the program is :

#include "StdAfx.h"
#include "resource.h"
#include ".\chidmenu.h"
#define mnuHeight 24
#define mnuWidth 163

CChidMenu::CChidMenu(void)
{
}

CChidMenu::~CChidMenu(void)
{
}

void CChidMenu ::DrawItem (LPDRAWITEMSTRUCT lpDIS)
{
  if(lpDIS->itemAction == ODA_DRAWENTIRE)
  {
DrawEntireMenu(lpDIS);
  }
  //if()
}

void CChidMenu ::DrawEntireMenu (LPDRAWITEMSTRUCT lpDIS)
{
CDC* pDC = CDC::FromHandle(lpDIS->hDC);

CDC *tempDC=new CDC();
tempDC->CreateCompatibleDC (pDC);
CBitmap bmpMenuBitamp,*oldBitmap;
BOOL b=bmpMenuBitamp.LoadBitmap (IDB_BITMAP2);
oldBitmap=tempDC->SelectObject (&bmpMenuBitamp);
pDC->BitBlt (0,0,mnuWidth,3*mnuHeight,tempDC,0,0,SRCCOPY);

}
void CChidMenu::MeasureItem(LPMEASUREITEMSTRUCT MenuMeasurement)
{
MenuMeasurement->itemHeight =mnuHeight;
MenuMeasurement->itemWidth =mnuWidth ;
}

Output:

There is a difference in the bitmap ... border and the CDC border....
it becomes visible that ...somthing is pasted...on the CDC n there is
difference in all the 4 corners...

How to remove the difference ...? Is the ... Menu CDC gives less
area...to paint??
Help needed