C#采用mouse_event函數(shù)實(shí)現(xiàn)模擬鼠標(biāo)功能

更新時(shí)間：2015年07月21日 15:40:27 作者：GC2013

這篇文章主要介紹了C#模擬鼠標(biāo)點(diǎn)擊小功能，通過代碼向大家做分析,需要的朋友可以參考下

下面我通過代碼為大家分享下C#模擬鼠標(biāo)，具體內(nèi)容如下：

想必有很多人在項(xiàng)目開發(fā)中可能遇見需要做模擬鼠標(biāo)點(diǎn)擊的小功能，很多人會(huì)在百度過后采用mouse_event這個(gè)函數(shù)，不過我并不想討論如何去使用mouse_event函數(shù)怎么去使用，因?yàn)槟菦]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(fā)現(xiàn)了什么？如果你發(fā)現(xiàn)說明你知道了本文到底在寫什么東東說不定你會(huì)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(biāo)點(diǎn)擊目標(biāo)時(shí)會(huì)向鼠標(biāo)所點(diǎn)擊目標(biāo)窗口投遞消息，根據(jù)鼠標(biāo)的按鍵、狀態(tài)不同會(huì)投遞不同的消息，一個(gè)完整的“鼠標(biāo)左鍵單擊”事件過程為“WM_LBUTTONDOWN +

WM_LBUTTONUP”即鼠標(biāo)“先左鍵按下 + 后左鍵抬起”，由于mouse_event可以模擬鼠標(biāo)點(diǎn)擊過程而不是直接性一次完整的鼠標(biāo)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(shí)光標(biāo)不會(huì)移動(dòng)到相對(duì)位置，“光標(biāo)相對(duì)位置=光標(biāo)現(xiàn)行位置+新光標(biāo)位置”如果提供量“MOUSEEVENTF_ABSOLUTE”絕對(duì)位置，則會(huì)以“新光標(biāo)位置”為準(zhǔn)而不會(huì)添加“光標(biāo)現(xiàn)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(shù)主要用于對(duì)MOUSEEVENTF_MOVE于MOUSEEVENTF_ABSOLUTE

相對(duì)/絕對(duì)光標(biāo)位置修改的一個(gè)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(shù)主要用于模擬鼠標(biāo)點(diǎn)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(huì)看的清楚的不得了，如果相反你可以去嘗試一番會(huì)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(shù)，函數(shù)主要是把兩個(gè)short合并為一個(gè)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(shù)故名思意，它主要用于把屏幕上的坐標(biāo)轉(zhuǎn)換到窗口客戶上對(duì)應(yīng)坐標(biāo) 
public const int WM_LBUTTONDOWN = 513; // 鼠標(biāo)左鍵按下 
public const int WM_LBUTTONUP = 514; // 鼠標(biāo)左鍵抬起 
public const int WM_RBUTTONDOWN = 516; // 鼠標(biāo)右鍵按下 
public const int WM_RBUTTONUP = 517; // 鼠標(biāo)右鍵抬起 
public const int WM_MBUTTONDOWN = 519; // 鼠標(biāo)中鍵按下 
public const int WM_MBUTTONUP = 520; // 鼠標(biāo)中鍵抬起 
public const int MOUSEEVENTF_MOVE = 0x0001; // 移動(dòng)鼠標(biāo)   
public const int MOUSEEVENTF_LEFTDOWN = 0x0002; // 鼠標(biāo)左鍵按下  
public const int MOUSEEVENTF_LEFTUP = 0x0004; // 鼠標(biāo)左鍵抬起  
public const int MOUSEEVENTF_RIGHTDOWN = 0x0008; // 鼠標(biāo)右鍵按下  
public const int MOUSEEVENTF_RIGHTUP = 0x0010; // 鼠標(biāo)右鍵抬起   
public const int MOUSEEVENTF_MIDDLEDOWN = 0x0020; // 鼠標(biāo)中鍵按下 
public const int MOUSEEVENTF_MIDDLEUP = 0x0040; // 鼠標(biāo)中鍵抬起   
public const int MOUSEEVENTF_ABSOLUTE = 0x8000; // 絕對(duì)坐標(biāo) 


[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(biāo)右鍵單擊(靜默)：

復(fù)制代碼代碼如下:

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

鼠標(biāo)左鍵雙擊(靜默):

復(fù)制代碼代碼如下:

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

鼠標(biāo)移動(dòng)(相對(duì)位置):

復(fù)制代碼代碼如下:

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

鼠標(biāo)移動(dòng)(絕對(duì)位置):

復(fù)制代碼代碼如下:

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