C#截屏

/* 何问起 http://hovertree.com/hovertreescj/ */
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Windows.Forms;

namespace HoverTreeSCJ.SCJForms.ToolForms
{
public partial class Form_GetScreen : Form
{
public Form_GetScreen()
{
InitializeComponent();
}

private void button_getScreen_Click(object sender, EventArgs e)
{
FormWindowState h_currentState = MdiParent.WindowState;
if (checkBox_isHide.Checked)
{
//MdiParent.Hide();
//http://hovertree.com/h/bjaf/de7qg5wd.htm
this.MdiParent.WindowState = FormWindowState.Minimized;
}

//创建图象，保存将来截取的图象
Bitmap image = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
Graphics imgGraphics = Graphics.FromImage(image);
//设置截屏区域 柯乐义
imgGraphics.CopyFromScreen(0, 0, 0, 0, new Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height));
//保存
SaveImage(image);

if (checkBox_isHide.Checked)
{
this.MdiParent.WindowState = h_currentState;
// this.MdiParent.Show();
}
}

//保存图象文件
private void SaveImage(Image image)
{
//http://hovertree.com/h/bjaf/ruwwcg2p.htm
saveFileDialog_getScreen.FileName = "何问起截图" + DateTime.Now.ToFileTime();
if (saveFileDialog_getScreen.ShowDialog(this) == DialogResult.OK)
{

string fileName = saveFileDialog_getScreen.FileName;
string extension = Path.GetExtension(fileName);
if (extension == ".jpg")
{
image.Save(fileName, ImageFormat.Jpeg);
}
else
{
image.Save(fileName, ImageFormat.Bmp);
}
}
}
}
}