bitmap.cpp

用vc编写的视频采集端口编成

// Bitmap.cpp: implementation of the CMyBitmap class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "Bitmap.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CMyBitmap::CMyBitmap()
{

}

bool CMyBitmap::Init(HINSTANCE hInstance, HDC hDc, WORD wBmpID)
{
	BITMAP bm;
	hBitmap = LoadBitmap(hInstance, MAKEINTRESOURCE(wBmpID));
	if( !hDc || !hBitmap)
		return 0;
	hMemDc = CreateCompatibleDC(hDc);
	SelectObject(hMemDc, hBitmap);
	SetMapMode(hMemDc, GetMapMode(hDc));
	GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&bm);
	pt.x = bm.bmWidth;
	pt.y = bm.bmHeight;
	return 1;

}

bool CMyBitmap::Show(HDC hDc, int x, int y)
{
	int iResult;
	iResult = BitBlt(hDc, x, y, pt.x, pt.y, hMemDc, 0, 0, SRCCOPY);
	if (iResult == 0)
		return 0;
	else return 1;
}


CMyBitmap::~CMyBitmap()
{
	DeleteDC(hMemDc);
}