void CImageView::OnDraw(CDC* pDC)
{
CImageDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
CDC* memDC=new CDC;
pDC->TextOut(0,0,"ac");
memDC->CreateCompatibleDC(pDC);
CBitmap bitmap2;
bitmap2.LoadBitmap(IDB_BITMAP2);
memDC->SelectObject(&bitmap2);
pDC->BitBlt(0,y, 11,20 , memDC, 0, 0, SRCCOPY);
memDC->DeleteDC();
｝
下面我想将我刚刚画到屏幕上的东西保存在一个BMP文件中，哪位给出一个完整一点的程序啊？初学，看了好几个这个问题的回帖，也没看明白
{
CImageDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
CDC* memDC=new CDC;
pDC->TextOut(0,0,"ac");
memDC->CreateCompatibleDC(pDC);
CBitmap bitmap2;
bitmap2.LoadBitmap(IDB_BITMAP2);
memDC->SelectObject(&bitmap2);
pDC->BitBlt(0,y, 11,20 , memDC, 0, 0, SRCCOPY);
memDC->DeleteDC();
｝
下面我想将我刚刚画到屏幕上的东西保存在一个BMP文件中，哪位给出一个完整一点的程序啊？初学，看了好几个这个问题的回帖，也没看明白
{
//定义图形大小
int iWidth = 800;
int iHeight = 600;
int iPixel = 16;
//图形格式参数
LPBITMAPINFO lpbmih = new BITMAPINFO;
lpbmih->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
lpbmih->bmiHeader.biWidth = iWidth;
lpbmih->bmiHeader.biHeight = iHeight;
lpbmih->bmiHeader.biPlanes = 1;
lpbmih->bmiHeader.biBitCount = iPixel;
lpbmih->bmiHeader.biCompression = BI_RGB;
lpbmih->bmiHeader.biSizeImage = 0;
lpbmih->bmiHeader.biXPelsPerMeter = 0;
lpbmih->bmiHeader.biYPelsPerMeter = 0;
lpbmih->bmiHeader.biClrUsed = 0;
lpbmih->bmiHeader.biClrImportant = 0; //创建位图数据
HDC hdc,hdcMem;
HBITMAP hBitMap = NULL;
CBitmap *pBitMap = NULL;
CDC *pMemDC = NULL;
BYTE *pBits; hdc = CreateIC(TEXT("DISPLAY"),NULL,NULL,NULL);
hdcMem = CreateCompatibleDC(hdc);
hBitMap = CreateDIBSection(hdcMem,lpbmih,DIB_PAL_COLORS,(void **)&pBits,NULL,0);
pBitMap = new CBitmap;
pBitMap->Attach(hBitMap);
pMemDC = new CDC;
pMemDC->Attach(hdcMem);
pMemDC->SelectObject(pBitMap);
//
CRect rc(0,0,iWidth,iHeight);
pMemDC->SetBkMode(TRANSPARENT);
//添加自绘图形
DrawCurve(pMemDC,rc);
//保存到文件并创建位图结构 BITMAPFILEHEADER bmfh;
ZeroMemory(&bmfh,sizeof(BITMAPFILEHEADER));
*((char *)&bmfh.bfType) = 'B';
*(((char *)&bmfh.bfType) + 1) = 'M';
bmfh.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
bmfh.bfSize = bmfh.bfOffBits + (iWidth * iHeight) * iPixel / 8; TCHAR szBMPFileName[128];
int iBMPBytes = iWidth * iHeight * iPixel / 8;
strcpy(szBMPFileName,filename);
CFile file;
if(file.Open(szBMPFileName,CFile::modeWrite | CFile::modeCreate))
{
file.Write(&bmfh,sizeof(BITMAPFILEHEADER));
file.Write(&(lpbmih->bmiHeader),sizeof(BITMAPINFOHEADER));
file.Write(pBits,iBMPBytes);
file.Close();
} pMemDC->DeleteDC();
delete pMemDC; pMemDC = NULL;
delete pBitMap; pBitMap = NULL;
delete lpbmih; lpbmih = NULL;
}