C#采用mouse_event函数实现模拟鼠标功能

2020-01-24 01:36:20

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下面我通过代码为大家分享下C#模拟鼠标，具体内容如下：

想必有很多人在项目开发中可能遇见需要做模拟鼠标点击的小功能，很多人会在百度过后采用mouse_event这个函数，不过我并不想讨论如何去使用mouse_event函数怎么去使用，因为那没有多大意义。

static void mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo) {  int x = dx, y = dy;  edit_position(dwFlags, dx, dy, ref x, ref y);  IntPtr hWndFromPoint = WindowFromPoint(x, y);  screen_to_client(hWndFromPoint, ref x, ref y);  send_message(hWndFromPoint, dwFlags, cButtons, x, y); }

上述代码你发现了什么？如果你发现说明你知道了本文到底在写什么东东说不定你会有一些兴趣看下去，不过想到我如今混那么凄惨在工地上做干活不过也还好。

鼠标点击目标时会向鼠标所点击目标窗口投递消息，根据鼠标的按键、状态不同会投递不同的消息，一个完整的“鼠标左键单击”事件过程为“WM_LBUTTONDOWN +

WM_LBUTTONUP”即鼠标“先左键按下 + 后左键抬起”，由于mouse_event可以模拟鼠标点击过程而不是直接性一次完整的鼠标单击过程，所以同样存在“按下、抬起”

mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP | MOUSEEVENTF_MOVE, -450, 0, 1, 0);
mouse_event在没有提供MOUSEEVENTF_MOVE量时光标不会移动到相对位置，“光标相对位置=光标现行位置+新光标位置”如果提供量“MOUSEEVENTF_ABSOLUTE”绝对位置，则会以“新光标位置”为准而不会添加“光标现行位置”

static void edit_position(int dwFlags, int dx, int dy, ref int x, ref int y) {  Point pos = MousePosition;  x = x + pos.X;  y = y + pos.Y;  if ((dwFlags | MOUSEEVENTF_ABSOLUTE) == dwFlags)   SetCursorPos(dx, dy);  if ((dwFlags | MOUSEEVENTF_MOVE) == dwFlags)   SetCursorPos(x, y); }

edit_position函数主要用于对MOUSEEVENTF_MOVE于MOUSEEVENTF_ABSOLUTE

相对/绝对光标位置修改的一个支持

static void send_message(IntPtr hWnd, int dwFlags, int cButtons, int x, int y) {  if ((dwFlags | MOUSEEVENTF_LEFTDOWN) == dwFlags)   SendMessage(hWnd, WM_LBUTTONDOWN, cButtons, MakeDWord(x, y));  if ((dwFlags | MOUSEEVENTF_LEFTUP) == dwFlags)   SendMessage(hWnd, WM_LBUTTONUP, cButtons, MakeDWord(x, y));  if ((dwFlags | MOUSEEVENTF_RIGHTDOWN) == dwFlags)   SendMessage(hWnd, WM_RBUTTONDOWN, cButtons, MakeDWord(x, y));  if ((dwFlags | MOUSEEVENTF_RIGHTUP) == dwFlags)   SendMessage(hWnd, WM_RBUTTONUP, cButtons, MakeDWord(x, y));  if ((dwFlags | MOUSEEVENTF_MIDDLEDOWN) == dwFlags)   SendMessage(hWnd, WM_MBUTTONDOWN, cButtons, MakeDWord(x, y));  if ((dwFlags | MOUSEEVENTF_MIDDLEUP) == dwFlags)   SendMessage(hWnd, WM_MBUTTONUP, cButtons, MakeDWord(x, y)); }

send_message函数主要用于模拟鼠标点击的过程，上面我提到“先左键按下 + 后左键抬起”在上面的代码中你会看的清楚的不得了，如果相反你可以去尝试一番会有什么后果与其说

不如你们自己做更要来的快些。

static int MakeDWord(int low, int high) {  return low + (high * Abs(~ushort.MaxValue)); } static int Abs(int value) {  return ((value >> 31) ^ value) - (value >> 31); } MakeDWord / 合并整数，函数主要是把两个short合并为一个int，分为low、high两部分  static bool screen_to_client(IntPtr hwnd, ref int x, ref int y) {  bool bRetVal = false;  Point lpptPos = new Point(x, y);  if ((bRetVal = ScreenToClient(hwnd, ref lpptPos)))  {   x = lpptPos.X;   y = lpptPos.Y;  }  return bRetVal; } screen_to_client函数故名思意，它主要用于把屏幕上的坐标转换到窗口客户上对应坐标 public const int WM_LBUTTONDOWN = 513; // 鼠标左键按下 public const int WM_LBUTTONUP = 514; // 鼠标左键抬起 public const int WM_RBUTTONDOWN = 516; // 鼠标右键按下 public const int WM_RBUTTONUP = 517; // 鼠标右键抬起 public const int WM_MBUTTONDOWN = 519; // 鼠标中键按下 public const int WM_MBUTTONUP = 520; // 鼠标中键抬起 public const int MOUSEEVENTF_MOVE = 0x0001; // 移动鼠标   public const int MOUSEEVENTF_LEFTDOWN = 0x0002; // 鼠标左键按下  public const int MOUSEEVENTF_LEFTUP = 0x0004; // 鼠标左键抬起  public const int MOUSEEVENTF_RIGHTDOWN = 0x0008; // 鼠标右键按下  public const int MOUSEEVENTF_RIGHTUP = 0x0010; // 鼠标右键抬起   public const int MOUSEEVENTF_MIDDLEDOWN = 0x0020; // 鼠标中键按下 public const int MOUSEEVENTF_MIDDLEUP = 0x0040; // 鼠标中键抬起   public const int MOUSEEVENTF_ABSOLUTE = 0x8000; // 绝对坐标 [DllImport("user32.dll", SetLastError = true)] public static extern int SendMessage(IntPtr hWnd, int uMsg, int wParam, int lParam); [DllImport("user32.dll", SetLastError = true)] public static extern IntPtr WindowFromPoint(int xPoint, int yPoint); [DllImport("user32.dll", SetLastError = true)] public static extern int SetCursorPos(int x, int y); [DllImport("user32.dll", SetLastError = true)] public static extern bool ScreenToClient(IntPtr hWnd, ref Point lppt); // [DllImport("user32", SetLastError = true)] // public static extern int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);

鼠标右键单击(静默)：

复制代码代码如下:

mouse_event(MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP, 0, 0, 1, 0);

鼠标左键双击(静默):

复制代码代码如下:

mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 2, 0);

鼠标移动(相对位置):

复制代码代码如下:

mouse_event(MOUSEEVENTF_MOVE, 100, 50, 0, 0);

鼠标移动(绝对位置):

复制代码代码如下:

mouse_event(MOUSEEVENTF_ABSOLUTE, 100, 50, 0, 0);