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
/// <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。
/// <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
/// <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
/// <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。
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);