如何实现像QQ那样截图？

你看看 有些代码你可能需要。。。

这个功能和QQ截图功能一样 只不过保存时候有些不同 改过来就OK了

不错！
欢迎光临专业的C＃论坛：

WWW.

using System ;
using System.Drawing ;
using System.Collections ;
using ;
using System.Windows.Forms ;
using System.Data ;
using System.Drawing.Imaging ;
public class Form1 : Form
{
    private Button button1 ;
    private components = null ;

    public Form1 ( )
    {
        //初始化窗体中的各个组件
        InitializeComponent ( ) ;
    }
    // 清除程序中使用过的资源
    protected override void Dispose ( bool disposing )
    {
        if ( disposing )
        {
            if ( components != null )
            {
                components.Dispose ( ) ;
            }
        }
        base.Dispose ( disposing ) ;
    }
    private void InitializeComponent ( )
    {
        button1 = new Button ( );
        SuspendLayout ( ) ;
        button1.Location = new System.Drawing.Point ( 64 , 40 ) ;
        button1.Name = "button1" ;
        button1.Size = new System.Drawing.Size ( 80 , 32 ) ;
        button1.TabIndex = 0 ;
        button1.Text = "捕获" ;
        button1.Click += new System.EventHandler ( button1_Click ) ;

        AutoScaleBaseSize = new System.Drawing.Size ( 6 , 14 ) ;
        ClientSize = new System.Drawing.Size ( 216 , 125 ) ;
        Controls.Add ( button1 ) ;
        MaximizeBox = false ;
        MinimizeBox = false ;
        Name = "Form1" ;
        Text = "C#捕获当前屏幕！" ;
        ResumeLayout ( false ) ;

    }
    //声明一个API函数
    [ System.Runtime.InteropServices.DllImportAttribute ( "gdi32.dll" ) ]
    private static extern bool BitBlt (
        IntPtr hdcDest , // 目标 DC的句柄
        int nXDest ,
        int nYDest ,
        int nWidth ,
        int nHeight ,
        IntPtr hdcSrc , // 源DC的句柄
        int nXSrc ,
        int nYSrc ,
        System.Int32 dwRop // 光栅的处理数值
        ) ;

    static void Main ( )
    {
        Application.Run ( new Form1 ( ) ) ;
    }
    private void button1_Click ( object sender , System.EventArgs e )
    {
        //获得当前屏幕的大小
        Rectangle rect = new Rectangle ( ) ;
        rect = Screen.GetWorkingArea ( this ) ;
        //创建一个以当前屏幕为模板的图象
        Graphics g1 = this.CreateGraphics ( ) ;
        //创建以屏幕大小为标准的位图
        Image MyImage = new Bitmap ( rect.Width , rect.Height , g1 ) ;
        Graphics g2 = Graphics.FromImage ( MyImage ) ;
        //得到屏幕的DC
        IntPtr dc1 = g1.GetHdc ( ) ;
        //得到Bitmap的DC
        IntPtr dc2 = g2.GetHdc ( ) ;
        //调用此API函数，实现屏幕捕获
        BitBlt ( dc2 , 0 , 0 , rect.Width , rect.Height , dc1 , 0 , 0 , 13369376 ) ;
        //释放掉屏幕的DC
        g1.ReleaseHdc ( dc1 ) ;
        //释放掉Bitmap的DC
        g2.ReleaseHdc ( dc2 ) ;
        //以JPG文件格式来保存
        MyImage.Save ( @"c:\Capture.jpg" , ImageFormat.Jpeg );
        MessageBox.Show ( "当前屏幕已经保存为C盘的capture.jpg文件！" ) ;
    }
}

学习了。。

不错  谢谢了

顶呀

支持下了啊,呵呵

下下来试试看，顺便顶下