WinCE 上截图

核心代码如下:

 

using System;

using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace Capture
{
    public partial class Form1 : Form
    {
        [DllImport("coredll.Dll")]

        private static extern IntPtr CreateDC(
            string lpszDriver, // 驱动名称 
            string lpszDevice, // 设备名称 
            string lpszOutput, // 无用，可以设定位"NULL" 
            IntPtr lpInitData // 任意的打印机数据 
            );
        [DllImport("coredll.Dll")]
        private static extern bool BitBlt(
            IntPtr hdcDest, 
            int nXDest, 
            int nYDest, 
            int nWidth, 
            int nHeight, 
            IntPtr hdcSrc, 
            int nXSrc, 
            int nYSrc, 
            Int32 dwrop
            );

        private const int SRCCOPY  =0xCC0020;

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int iHeight =Screen.PrimaryScreen.Bounds.Height;
            int iWidth = Screen.PrimaryScreen.Bounds.Width;
            IntPtr dc1 = CreateDC(null, null, null, (IntPtr)null);
            Graphics gScreen = Graphics.FromHdc(dc1);
            Image iGetPhoto = new Bitmap(
                iWidth
                ,iHeight );
            Graphics gPhoto = Graphics.FromImage(iGetPhoto);
            IntPtr iHandle = gScreen.GetHdc();
            IntPtr iPhoto = gPhoto.GetHdc();

            BitBlt(iPhoto, 0, 0, iWidth, iHeight,
                iHandle, 0, 0, SRCCOPY);
            gScreen.ReleaseHdc(iHandle);
            gPhoto.ReleaseHdc(iPhoto);
            iGetPhoto.Save(@"\NandFlash\ice.bmp",System.Drawing .Imaging .ImageFormat .Bmp );
            iGetPhoto .Dispose ();

        }
    }
}