win32 位图 Bitmap 和 Bitblt 演示

针对《Windows 程序设计》第五版 第14章 14.4.5 单色位图格式

win7 64位，vs2010 建立一个 MFC 对话框 ，
添加三个按钮：
三个按钮的点击事件的处理函数
代码分别如下：

左边的按钮：

void CBitmapTestDlg::OnBnClickedBtnTest()
{
    // TODO: 在此添加控件通知处理程序代码

    BITMAP  bitmap = { 0, 20, 5, 4, 1, 1 } ;

    BYTE    bits [] = {

        0x51,0x77,0x10,0x00,
        0x57,0x77,0x50,0x00,
        0x13,0x77,0x50,0x00,
        0x57,0x77,0x50,0x00,
        0x51,0x11,0x10,0x00

    } ;


    HBITMAP hBitmap ;

    HDC  hdcMem ;
    HWND hwnd;
    HDC hdc ;


    int  cxSource, cySource ;

    hwnd = AfxGetMainWnd()->m_hWnd;

    hdc =::GetDC(hwnd);


    bitmap.bmBits = bits ;

    hBitmap = CreateBitmapIndirect (&bitmap) ;

    cxSource = bitmap.bmWidth ;
    cySource = bitmap.bmHeight ;

    hdcMem = CreateCompatibleDC (hdc) ;
    SelectObject (hdcMem, hBitmap) ;

    BitBlt (hdc, 100,100, cxSource, cySource, hdcMem, 0, 0, SRCCOPY) ;

    DeleteDC (hdcMem) ;

    DeleteObject (hBitmap) ;

    ::ReleaseDC(hwnd,hdc);

}

中间的按钮：

void CBitmapTestDlg::OnBnClickedBtnTestb()
{
    // TODO: 在此添加控件通知处理程序代码

    BITMAP  bitmap = { 0, 20, 5, 4, 1, 1 } ;

    BYTE    bits [] = {

        0x51,0x77,0x10,0x00,
        0x57,0x77,0x50,0x00,
        0x13,0x77,0x50,0x00,
        0x57,0x77,0x50,0x00,
        0x51,0x11,0x10,0x00

    } ;


    HBITMAP hBitmap ;

    HDC  hdcMem ;
    HWND hwnd;
    HDC hdc ;


    int  cxSource, cySource ;

    hwnd = AfxGetMainWnd()->m_hWnd;

    hdc =::GetDC(hwnd);



    hBitmap = CreateBitmapIndirect (&bitmap) ;
    SetBitmapBits(hBitmap,sizeof(bits),bits);


    cxSource = bitmap.bmWidth ;
    cySource = bitmap.bmHeight ;

    hdcMem = CreateCompatibleDC (hdc) ;
    SelectObject (hdcMem, hBitmap) ;

    BitBlt (hdc, 220, 100, cxSource, cySource, hdcMem, 0, 0, SRCCOPY) ;

    DeleteDC (hdcMem) ;

    DeleteObject (hBitmap) ;

    ::ReleaseDC(hwnd,hdc);
}

右边的按钮：

void CBitmapTestDlg::OnBnClickedBtnTestC()
{
    // TODO: 在此添加控件通知处理程序代码

    BITMAP  bitmap = { 0, 20, 5, 4, 1, 1 } ;

    BYTE    bits [] = {

        0x51,0x77,0x10,0x00,
        0x57,0x77,0x50,0x00,
        0x13,0x77,0x50,0x00,
        0x57,0x77,0x50,0x00,
        0x51,0x11,0x10,0x00

    } ;


    HBITMAP hBitmap ;

    HDC  hdcMem ;
    HWND hwnd;
    HDC hdc ;


    int  cxSource, cySource ;

    hwnd = AfxGetMainWnd()->m_hWnd;

    hdc =::GetDC(hwnd);



    hBitmap = CreateBitmap(20,5,1,1,bits) ;



    cxSource = bitmap.bmWidth ;
    cySource = bitmap.bmHeight ;

    hdcMem = CreateCompatibleDC (hdc) ;
    SelectObject (hdcMem, hBitmap) ;

    BitBlt (hdc, 370, 100, cxSource, cySource, hdcMem, 0, 0, SRCCOPY) ;

    DeleteDC (hdcMem) ;

    DeleteObject (hBitmap) ;

    ::ReleaseDC(hwnd,hdc);

}

运行界面如下:

分别点击了按钮之后：

将上面的图片 局部放大3倍之后，

工程代码：
https://download.csdn.net/download/wowocpp/10519743