C# 调用windows api 操作鼠标、键盘、窗体合集

1.根据句柄查找窗体

使用SPY++工具获取窗体

IntPtr awin = MouseHookHelper.FindWindow("WeChatMainWndForPC", "微信");
if (awin == IntPtr.Zero)
{
MessageBox.Show("没有找到窗体");
return;
}

2.获取窗体坐标信息

MouseHookHelper.RECT rect = new MouseHookHelper.RECT();
MouseHookHelper.GetWindowRect(awin, ref rect);
int width = rect.Right - rect.Left;             //窗口的宽度
int height = rect.Bottom - rect.Top;            //窗口的高度
int x = rect.Left;
int y = rect.Top;

3.设置为当前窗体

MouseHookHelper.SetForegroundWindow(awin);
MouseHookHelper.ShowWindow(awin,MouseHookHelper.SW_SHOWNOACTIVATE);//4、5

4.点击某个坐标

LeftMouseClick(new MouseHookHelper.POINT()
{
X = ppp.MsgX,
Y = ppp.MsgY
});

private static void LeftMouseClick(MouseHookHelper.POINT pointInfo)
{

//先移动鼠标到指定位置
MouseHookHelper.SetCursorPos(pointInfo.X, pointInfo.Y);

//按下鼠标左键
MouseHookHelper.mouse_event(MouseHookHelper.MOUSEEVENTF_LEFTDOWN,
pointInfo.X * 65536 / Screen.PrimaryScreen.Bounds.Width,
pointInfo.Y * 65536 / Screen.PrimaryScreen.Bounds.Height, 0, 0);

//松开鼠标左键
MouseHookHelper.mouse_event(MouseHookHelper.MOUSEEVENTF_LEFTUP,
pointInfo.X * 65536 / Screen.PrimaryScreen.Bounds.Width,
pointInfo.Y * 65536 / Screen.PrimaryScreen.Bounds.Height, 0, 0);

}

5.复制粘贴操作

//复制到剪贴板
Clipboard.SetText("test");
//从剪贴板获取数据
Clipboard.GetText();
//粘贴
SendKeys.SendWait("^V");
//回车键
SendKeys.Send("{Enter}");

6.钩子的使用

private void button1_Click(object sender, EventArgs e)
{
if (hHook == 0)
{
MyProcedure = new MouseHookHelper.HookProc(this.MouseHookProc);
//这里挂节钩子
hHook = MouseHookHelper.SetWindowsHookEx(WH_MOUSE_LL, MyProcedure, Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]), 0);
if (hHook == 0)
{
MessageBox.Show("请以管理员方式打开");
return;
}
button1.Text = "卸载钩子";
}
else
{
bool ret = MouseHookHelper.UnhookWindowsHookEx(hHook);
if (ret == false)
{
MessageBox.Show("请以管理员方式打开");
return;
}
hHook = 0;
button1.Text = "安装钩子";
}
}

private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{

MouseHookHelper.MouseHookStruct MyMouseHookStruct = (MouseHookHelper.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(MouseHookHelper.MouseHookStruct));
if (nCode < 0)
{
return MouseHookHelper.CallNextHookEx(hHook, nCode, wParam, lParam);
}
else
{
String strCaption = "x = " + MyMouseHookStruct.pt.X.ToString("d") + "  y = " + MyMouseHookStruct.pt.Y.ToString("d");
this.Text = strCaption;
return MouseHookHelper.CallNextHookEx(hHook, nCode, wParam, lParam);
}
}

7.MouseHookHelper代码

public class MouseHookHelper
{

#region 根据句柄寻找窗体并发送消息

[DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)]
//参数1:指的是类名。参数2，指的是窗口的标题名。两者至少要知道1个
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string lclassName, string windowTitle);

[DllImport("user32.dll", EntryPoint = "SendMessage", SetLastError = true, CharSet = CharSet.Auto)]
public static extern IntPtr SendMessage(IntPtr hwnd, uint wMsg, int wParam, string lParam);

[DllImport("user32.dll", EntryPoint = "SendMessage", SetLastError = true, CharSet = CharSet.Auto)]
public static extern IntPtr SendMessage(IntPtr hwnd, uint wMsg, int wParam, int lParam);

#endregion

#region 获取窗体位置
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);

[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int Left;                             //最左坐标
public int Top;                             //最上坐标
public int Right;                           //最右坐标
public int Bottom;                        //最下坐标
}
#endregion

#region 设置窗体显示形式

public enum nCmdShow : uint
{
SW_NONE,//初始值
SW_FORCEMINIMIZE,//：在WindowNT5.0中最小化窗口，即使拥有窗口的线程被挂起也会最小化。在从其他线程最小化窗口时才使用这个参数。
SW_MIOE,//：隐藏窗口并激活其他窗口。
SW_MAXIMIZE,//：最大化指定的窗口。
SW_MINIMIZE,//：最小化指定的窗口并且激活在Z序中的下一个顶层窗口。
SW_RESTORE,//：激活并显示窗口。如果窗口最小化或最大化，则系统将窗口恢复到原来的尺寸和位置。在恢复最小化窗口时，应用程序应该指定这个标志。
SW_SHOW,//：在窗口原来的位置以原来的尺寸激活和显示窗口。
SW_SHOWDEFAULT,//：依据在STARTUPINFO结构中指定的SW_FLAG标志设定显示状态，STARTUPINFO 结构是由启动应用程序的程序传递给CreateProcess函数的。
SW_SHOWMAXIMIZED,//：激活窗口并将其最大化。
SW_SHOWMINIMIZED,//：激活窗口并将其最小化。
SW_SHOWMINNOACTIVATE,//：窗口最小化，激活窗口仍然维持激活状态。
SW_SHOWNA,//：以窗口原来的状态显示窗口。激活窗口仍然维持激活状态。
SW_SHOWNOACTIVATE,//：以窗口最近一次的大小和状态显示窗口。激活窗口仍然维持激活状态。
SW_SHOWNOMAL,//：激活并显示一个窗口。如果窗口被最小化或最大化，系统将其恢复到原来的尺寸和大小。应用程序在第一次显示窗口的时候应该指定此标志。
}

public const int SW_HIDE = 0;
public const int SW_SHOWNORMAL = 1;
public const int SW_SHOWMINIMIZED = 2;
public const int SW_SHOWMAXIMIZED = 3;
public const int SW_MAXIMIZE = 3;
public const int SW_SHOWNOACTIVATE = 4;
public const int SW_SHOW = 5;
public const int SW_MINIMIZE = 6;
public const int SW_SHOWMINNOACTIVE = 7;
public const int SW_SHOWNA = 8;
public const int SW_RESTORE = 9;

[DllImport("User32.dll")]
public static extern bool SetForegroundWindow(IntPtr hWnd);

[DllImport("User32.dll")]
public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);

#endregion

#region 控制鼠标移动

//移动鼠标
public const int MOUSEEVENTF_MOVE = 0x0001;
//模拟鼠标左键按下
public const int MOUSEEVENTF_LEFTDOWN = 0x0002;
//模拟鼠标左键抬起
public const int MOUSEEVENTF_LEFTUP = 0x0004;
//模拟鼠标右键按下
public const int MOUSEEVENTF_RIGHTDOWN = 0x0008;
//模拟鼠标右键抬起
public const int MOUSEEVENTF_RIGHTUP = 0x0010;
//模拟鼠标中键按下
public const int MOUSEEVENTF_MIDDLEDOWN = 0x0020;
//模拟鼠标中键抬起
public const int MOUSEEVENTF_MIDDLEUP = 0x0040;
//标示是否采用绝对坐标
public const int MOUSEEVENTF_ABSOLUTE = 0x8000;

[Flags]
public enum MouseEventFlag : uint
{
Move = 0x0001,
LeftDown = 0x0002,
LeftUp = 0x0004,
RightDown = 0x0008,
RightUp = 0x0010,
MiddleDown = 0x0020,
MiddleUp = 0x0040,
XDown = 0x0080,
XUp = 0x0100,
Wheel = 0x0800,
VirtualDesk = 0x4000,
Absolute = 0x8000
}

//[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
[DllImport("user32.dll")]
public static extern bool SetCursorPos(int X, int Y);
[DllImport("user32.dll")]
public static extern int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);

#endregion

#region 获取坐标钩子

[StructLayout(LayoutKind.Sequential)]
public class POINT
{
public int X;
public int Y;
}

[StructLayout(LayoutKind.Sequential)]
public class MouseHookStruct
{
public POINT pt;
public int hwnd;
public int wHitTestCode;
public int dwExtraInfo;
}

public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam);

//安装钩子
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
//卸载钩子
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern bool UnhookWindowsHookEx(int idHook);
//调用下一个钩子
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam);

#endregion

}