C#采用mouse_event函数实现模拟鼠标功能

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)：

mouse_event(mouseeventf_rightdown | mouseeventf_rightup, 0, 0, 1, 0); 

鼠标左键双击(静默):

mouse_event(mouseeventf_leftdown | mouseeventf_leftup, 0, 0, 2, 0); 

鼠标移动(相对位置):

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

鼠标移动(绝对位置):

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

以上内容比较多请认真学习，希望能够帮助到大家。