class HotKey
{
//如果函数执行成功,返回值不为0。
//如果函数执行失败,返回值为0。要得到扩展错误信息,调用GetLastError。
[System.Runtime.InteropServices.DllImport("user32.dll", SetLastError = true)]
public static extern bool RegisterHotKey(IntPtr hWnd, //要定义热键的窗口的句柄
int id, //定义热键ID(不能与其它ID重复)
KeyModifiers fsModifiers, //标识热键是否在按Alt、Ctrl、Shift、Windows等键时才会生效
Keys vk //定义热键的内容
);
[System.Runtime.InteropServices.DllImport("user32.dll", SetLastError = true)]
public static extern bool UnregisterHotKey(
IntPtr hWnd, //要取消热键的窗口的句柄
int id //要取消热键的ID
);
//定义了辅助键的名称(将数字转变为字符以便于记忆,也可去除此枚举而直接使用数值)
[Flags()]
public enum KeyModifiers
{
None = 0,
Alt = 1,
Ctrl = 2,
Shift = 4,
WindowsKey = 8
}
}
protected override void WndProc(ref Message m)
{
const int WM_HOTKEY = 0x0312;
//按快捷键
switch (m.Msg)
{
case WM_HOTKEY:
switch (m.WParam.ToInt32())
{
case 100: //按下的是Shift+S
//此处填写快捷键响应代码
break;
case 101:
{//按下的是Ctrl+B
//此处填写快捷键响应代码
//MessageBox.Show("hot key");
this.Show();
}
break;
case 102: //按下的是Alt+D
//此处填写快捷键响应代码
break;
}
break;
}
base.WndProc(ref m);
}
private void Form1_Load(object sender, EventArgs e)
{
HotKey.RegisterHotKey(Handle, 101, HotKey.KeyModifiers.Ctrl, Keys.B);
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
HotKey.UnregisterHotKey(Handle, 101);
}