.net中模拟键盘和鼠标操作
周银辉
其实SendKeys类提供的方法蛮好用的,可惜的是WPF中不能用了,说是WPF的消息循环方式改成了Dispatcher,所以直接调用System.Windows.Forms.SendKeys.Send()方法会报错. 不过没关系, 至少有use32的SendInput可用,通过P/Invoke方式,我们可以模拟键盘或鼠标操作.
定义是这样的:
[DllImport("user32.dll", SetLastError = true)] internal static extern int SendInput(int nInputs, ref INPUT mi, int cbSize);
其中的INPUT结构表示一个键盘或鼠标操作:
[StructLayout(LayoutKind.Sequential)] internal struct INPUT { internal int type; internal INPUTUNION union; }; [StructLayout(LayoutKind.Explicit)] internal struct INPUTUNION { [FieldOffset(0)] internal MOUSEINPUT mouseInput; [FieldOffset(0)] internal KEYBDINPUT keyboardInput; }; [StructLayout(LayoutKind.Sequential)] internal struct MOUSEINPUT { internal int dx; internal int dy; internal int mouseData; internal int dwFlags; internal int time; internal IntPtr dwExtraInfo; }; [StructLayout(LayoutKind.Sequential)] internal struct KEYBDINPUT { internal short wVk; internal short wScan; internal int dwFlags; internal int time; internal IntPtr dwExtraInfo; }; [Flags] internal enum SendMouseInputFlags { Move = 0x0001, LeftDown = 0x0002, LeftUp = 0x0004, RightDown = 0x0008, RightUp = 0x0010, MiddleDown = 0x0020, MiddleUp = 0x0040, XDown = 0x0080, XUp = 0x0100, Wheel = 0x0800, Absolute = 0x8000, };
关于这些方法或结构的定义在http://www.pinvoke.net/index.aspx 这个网站上可以查找得到(但不保证百分百靠谱)
下面这个代码文件做了一个很好的包装,可以下载后参考:
Simulation.zip
如何使用呢?
很简单, 要敲一个键, 比如回车:
Keyboard.Press(Key.Enter); Keyboard.Release(Key.Enter);
要敲一个组合键:比如Alt+F4
Keyboard.Press(Key.LeftAlt); Keyboard.Press(Key.F4); Keyboard.Release(Key.LeftAlt); Keyboard.Release(Key.F4);
要敲一段文字:
Keyboard.Type("notepad");
鼠标与之类似,比如:
Mouse.MoveTo(new System.Drawing.Point(x, y)); Mouse.Click(MouseButton.Right);