C#/winform 自动触发鼠标、键盘事件

要在C#程序中触发鼠标、键盘事件必须要调用windows函数。

一、鼠标事件的触发

 1.引用windows函数mouse_event

?

1 2 3 4 5 6 7 8 9 10

/// <summary> /// 鼠标事件 /// </summary> /// <param name="flags">事件类型</param> /// <param name="dx">x坐标值(0~65535)</param> /// <param name="dy">y坐标值(0~65535)</param> /// <param name="data">滚动值(120一个单位)</param> /// <param name="extraInfo">不支持</param> [DllImport("user32.dll")] static extern void mouse_event(MouseEventFlag flags, int dx, int dy, uint data, UIntPtr extraInfo);

　

MouseEventFlag表示鼠标事件的类型，可取多个枚举值组合。注意dx,dy参数，必须是绝对坐标（0,0）~（65535,65535）中的一点。

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

/// <summary>     /// 鼠标操作标志位集合     /// </summary>     [Flags]     enum MouseEventFlag : uint     {         /// <summary>         /// 鼠标移动事件         /// </summary>         Move = 0x0001,            /// <summary>         /// 鼠标左键按下事件         /// </summary>         LeftDown = 0x0002,         LeftUp = 0x0004,         RightDown = 0x0008,         RightUp = 0x0010,         MiddleDown = 0x0020,         MiddleUp = 0x0040,         XDown = 0x0080,         XUp = 0x0100,         Wheel = 0x0800,         VirtualDesk = 0x4000,         /// <summary>         /// 设置鼠标坐标为绝对位置（dx,dy）,否则为距离最后一次事件触发的相对位置         /// </summary>         Absolute = 0x8000     }

2.调用mouse_event函数，触发鼠标事件

?

1 2 3 4 5 6 7 8 9 10 11

/// <summary>         /// 触发鼠标事件         /// </summary>         /// <param name="x"></param>         /// <param name="y"></param>         private static void DoMouseClick(int x, int y)         {             int dx = (int)((double)x / Screen.PrimaryScreen.Bounds.Width * 65535); //屏幕分辨率映射到0~65535(0xffff,即16位)之间             int dy = (int)((double)y / Screen.PrimaryScreen.Bounds.Height * 0xffff); //转换为double类型运算，否则值为0、1             mouse_event(MouseEventFlag.Move | MouseEventFlag.LeftDown | MouseEventFlag.LeftUp | MouseEventFlag.Absolute, dx, dy, 0, new UIntPtr(0)); //点击         }

　　

二、键盘事件的触发

1.引用windows函数keybd_event

?

1 2 3 4 5 6 7 8 9

/// <summary>         /// 键盘事件         /// </summary>         /// <param name="bVk"> virtual-key code</param>         /// <param name="bScan">hardware scan code</param>         /// <param name="dwFlags"> flags specifying various function options</param>         /// <param name="dwExtraInfo"> additional data associated with keystroke</param>         [DllImport("user32.dll")]         public static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);

　　

bvk为键值，例如回车13，bScan设置为0，dwFlags设置0表示按下，2表示抬起；dwExtraInfo也设置为0即可。

2.调用keybd_event函数，触发键盘事件

下面的代码演示触发Ctrl+C组合键，执行复制操作。

?

1 2 3 4

keybd_event((byte)Keys.ControlKey, 0, 0, 0); keybd_event((byte)Keys.C, 0, 0, 0); keybd_event((byte)Keys.ControlKey, 0, 2, 0); keybd_event((byte)Keys.C, 0, 2, 0);