C# 抓屏程序
由于工作关系，常常需要将一些软件的内容抓屏保存下来，原来抓的屏不是很多，一直采用Ctrl+C,Ctrl+V,另存的方法。最近几次，由于工作量比较大，差点累得手抽筋。于是找了个抓屏软件，但是其功能太强大了，哈哈。还是自己弄一个比较好。
1。[静心编程]的blog中提到：
// 模拟按键，将当前窗口图像截取到剪贴板：
SendKeys.SendWait("%{PRTSC}"); // 模拟 Alt+PrtSc，如果要截取整个屏幕，把 Alt (%) 去掉
//获取剪贴板里的图像：
Bitmap myCapture = (Bitmap)Clipboard.GetDataObject().GetData(DataFormats.Bitmap);
// 要显示图像可以这么做：
// this.pictureBox1.Image = myCapture;
// 要保存图像可以这么做：
myCapture.Save(mysettingForm.savepath + savename + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
2。那么怎么让软件在后台捕获键盘呢。
[DllImport("user32.dll", SetLastError = true)]
public static extern bool RegisterHotKey(IntPtr hWnd,// handle to window
int id, // hot key identifier
KeyModifiers fsModifiers, // key-modifier options
Keys vk // virtual-key code
);
[DllImport("user32.dll", SetLastError = true)]
public static extern bool UnregisterHotKey(IntPtr hWnd,// handle to window
int id // hot key identifier
);
[Flags()]
public enum KeyModifiers
{
None = 0,
Alt = 1,
Control = 2,
Shift = 4,
Windows = 8
}
protected override void WndProc(ref Message m)//循环监视Windows消息
{}
是我的选择。
3。最后加上，保存路径和保存名字等一些无关紧要的东西。
源码如下：
//////////////////Form1.cs/////////////////////////////////
[DllImport("user32.dll", SetLastError = true)]
public static extern bool RegisterHotKey(IntPtr hWnd,// handle to window
int id, // hot key identifier
KeyModifiers fsModifiers, // key-modifier options
Keys vk // virtual-key code
);
[DllImport("user32.dll", SetLastError = true)]
public static extern bool UnregisterHotKey(IntPtr hWnd,// handle to window
int id // hot key identifier
);
[Flags()]
public enum KeyModifiers
{
None = 0,
Alt = 1,
Control = 2,
Shift = 4,
Windows = 8
}
private Setting mysettingForm = new Setting ();
private int number = 0;//保存一系列同名图像时的编号
private string oldname = "Helios";
private void printprocess()
{
// 模拟按键，将当前窗口图像截取到剪贴板：
SendKeys.SendWait("%{PRTSC}"); // 模拟 Alt+PrtSc，如果要截取整个屏幕，把 Alt (%) 去掉
// SendKeys.SendWait("{PRTSC}"); // 模拟 Alt+PrtSc，如果要截取整个屏幕，把 Alt (%) 去掉
// 获取剪贴板里的图像：
Bitmap myCapture = (Bitmap)Clipboard.GetDataObject().GetData(DataFormats.Bitmap);
// 要显示图像可以这么做：
// this.pictureBox1.Image = myCapture;
// 要保存图像可以这么做：
if (oldname != mysettingForm.savename)//判断存档名字是否变化
number = 0;
string savename = mysettingForm.savename + (++number).ToString().PadLeft(5, '0');
myCapture.Save(mysettingForm.savepath + savename + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
oldname = mysettingForm.savename; //保留当前存档名字
Clipboard.Clear();
}
private void Form1_Load(object sender, EventArgs e)
{
RegisterHotKey(Handle, 100, 0,Keys.F2 );//mysettingForm.shortcutKey
this.Visible = false;
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
UnregisterHotKey(Handle, 100);//卸载快捷键
}
protected override void WndProc(ref Message m)//循环监视Windows消息
{
const int WM_HOTKEY = 0x0312;//按快捷键
switch (m.Msg)
{
case WM_HOTKEY:
printprocess();//调用主处理程序
break;
}
base.WndProc(ref m);
}
private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void 关于ToolStripMenuItem_Click(object sender, EventArgs e)
{
MessageBox.Show("抓屏软件V0.2 By Helios ", "抓屏软件V0.2", MessageBoxButtons.OK);
}
private void 设置ToolStripMenuItem_Click(object sender, EventArgs e)
{
this.mysettingForm.Visible = true;
mysettingForm.Show();
}
/////////////////////////////////////settingform.cs/////////////////////////////////////////////////////////////////////
public string savepath = @"C:/";
public string savename = "Helios";
private void OK_Click(object sender, EventArgs e)
{
savepath = textBox1.Text;
savename = textBoxsaveName.Text;
this.Visible = false;
}
private void view_Click(object sender, EventArgs e)
{
DialogResult Result = folderBrowserDialog1.ShowDialog();
if (Result == DialogResult.OK)
textBox1.Text = folderBrowserDialog1.SelectedPath;
}
private void Default_Click(object sender, EventArgs e)
{
savepath = @"C:/";
savename = "Helios";
textBoxsaveName.Text = savename;
textBox1.Text = savepath;
//this.Visible = false;
}
private void Apply_Click(object sender, EventArgs e)
{
savepath = textBox1.Text;
savename = textBoxsaveName.Text;
}
private void textBoxsaveName_TextChanged(object sender, EventArgs e)
{
this.Apply.Enabled = true;
}
private void Setting_Load(object sender, EventArgs e)
{
this.Apply.Enabled = false;
}