C#采用mouse_event函數實現模擬鼠標功能

2020-01-24 01:36:20

字體：大中小

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下面我通過代碼為大家分享下C#模擬鼠標，具體內容如下：

想必有很多人在項目開發中可能遇見需要做模擬鼠標點擊的小功能，很多人會在百度過后采用mouse_event這個函數，不過我并不想討論如何去使用mouse_event函數怎么去使用，因為那沒有多大意義。

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); }

上述代碼你發現了什么？如果你發現說明你知道了本文到底在寫什么東東說不定你會有一些興趣看下去，不過想到我如今混那么凄慘在工地上做干活不過也還好。

鼠標點擊目標時會向鼠標所點擊目標窗口投遞消息，根據鼠標的按鍵、狀態不同會投遞不同的消息，一個完整的“鼠標左鍵單擊”事件過程為“WM_LBUTTONDOWN +

WM_LBUTTONUP”即鼠標“先左鍵按下 + 后左鍵抬起”，由于mouse_event可以模擬鼠標點擊過程而不是直接性一次完整的鼠標單擊過程，所以同樣存在“按下、抬起”

mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP | MOUSEEVENTF_MOVE, -450, 0, 1, 0);
mouse_event在沒有提供MOUSEEVENTF_MOVE量時光標不會移動到相對位置，“光標相對位置=光標現行位置+新光標位置”如果提供量“MOUSEEVENTF_ABSOLUTE”絕對位置，則會以“新光標位置”為準而不會添加“光標現行位置”

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函數主要用于對MOUSEEVENTF_MOVE于MOUSEEVENTF_ABSOLUTE

相對/絕對光標位置修改的一個支持

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函數主要用于模擬鼠標點擊的過程，上面我提到“先左鍵按下 + 后左鍵抬起”在上面的代碼中你會看的清楚的不得了，如果相反你可以去嘗試一番會有什么后果與其說

不如你們自己做更要來的快些。

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 / 合并整數，函數主要是把兩個short合并為一個int，分為low、high兩部分  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函數故名思意，它主要用于把屏幕上的坐標轉換到窗口客戶上對應坐標 public const int WM_LBUTTONDOWN = 513; // 鼠標左鍵按下 public const int WM_LBUTTONUP = 514; // 鼠標左鍵抬起 public const int WM_RBUTTONDOWN = 516; // 鼠標右鍵按下 public const int WM_RBUTTONUP = 517; // 鼠標右鍵抬起 public const int WM_MBUTTONDOWN = 519; // 鼠標中鍵按下 public const int WM_MBUTTONUP = 520; // 鼠標中鍵抬起 public const int MOUSEEVENTF_MOVE = 0x0001; // 移動鼠標   public const int MOUSEEVENTF_LEFTDOWN = 0x0002; // 鼠標左鍵按下  public const int MOUSEEVENTF_LEFTUP = 0x0004; // 鼠標左鍵抬起  public const int MOUSEEVENTF_RIGHTDOWN = 0x0008; // 鼠標右鍵按下  public const int MOUSEEVENTF_RIGHTUP = 0x0010; // 鼠標右鍵抬起   public const int MOUSEEVENTF_MIDDLEDOWN = 0x0020; // 鼠標中鍵按下 public const int MOUSEEVENTF_MIDDLEUP = 0x0040; // 鼠標中鍵抬起   public const int MOUSEEVENTF_ABSOLUTE = 0x8000; // 絕對坐標 [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);

鼠標右鍵單擊(靜默)：

復制代碼代碼如下:

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

鼠標左鍵雙擊(靜默):

復制代碼代碼如下:

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

鼠標移動(相對位置):

復制代碼代碼如下:

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

鼠標移動(絕對位置):

復制代碼代碼如下:

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