[转]C#句柄的操作（鼠标移动、键盘点击、复制粘贴）

--模拟键盘点击--
[DllImport("user32.dll",EntryPoint = "keybd_event",SetLastError = true)]
public static extern void keybd_event(Keys bVk,byte bScan,uint dwFlags,uint dwExtraInfo);
public static void CtrlAAndCtrlC()
{
	Keybd_event(Keys.ControlKey,0,0,0);
	keybd_event(Keys.A,0,0,0);
	keybd_event(Keys.C,0,0,0);
	keybd_event(Keys.ControlKey,0,KEYEVENTF_KEYUP);
}

--鼠标移动到固定位置--
[DllImport("user32.dll")]
public static extern int SetCursorPos(int x, int y);

--鼠标点击--
[DllImport("user32.dll",EntryPoint = "PostMessage",CallingConvention = CallingConvention.Winapi)]
public static extern int PostMessage(IntPtr hwnd, int msg, uint wParam, uint IParm);

--最大最小关闭窗口--
[DllImport("user32.dll",CharSet = CharSet.Auto, ExactSpelling = true)]
public static extern int ShowWindow(IntPtr hwnd, int nCmdShow);

--将窗口显示到最前端--
[DllImport("user32.dll",EntryPoint = "EnumChildWindows")]
public static extern int EnumChildWindows(IntPtr hwndParent, CallBack callBack, int IParm);
public delegate bool CallBack(IntPtr hwnd, int IParam);

--获取窗体文本--
[DllImport("user32.dll",EntryPoint = "GetWindowText")]
public static extern int GetWindowText(IntPtr hwnd, StringBuilder text, int maxLength);

--获取窗体Class文本--
[DllImport("user32.dll",EntryPoint = "GetClassText")]
public static extern int GetClassText(IntPtr hwnd, StringBuilder text, int maxLength);

----
[DllImport("user32.dll",EntryPoint = "GetWindowLong")]
public static extern int GetWindowLong(IntPtr hwnd, int nIndex);

--设置文本--
[DllImport("user32.dll",EntryPoint = "SendMessage")]
public static extern int SendMessage(IntPtr hwnd, int msg, int wParam, StringBuilder IParam);

--设置文本--
[DllImport("user32.dll",EntryPoint = "SetWindowText")]
public static extern int SetWindowText(IntPtr hwnd, string text);

--设置键盘点击--
[DllImport("user32.dll",EntryPoint = "PostMessageA", SetLastError = true)]
public static extern int PostMessageA(IntPtr hwnd, int msg, Keys wParm, uint IParm);

--导出进程--
[DllImport("user32.dll",EntryPoint = "FindWindow")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

--让窗口置于所有页面最前端--
[DllImport("user32.dll",CharSet.Auto)]
public static extern bool SwitchToThisWindow(IntPtr hwnd, bool fAltTab);

--鼠标运动到位置并点击--
[DllImport("user32.dll")]
public static extern int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);

--模拟鼠标点击抬起--
public static void MouserDownAndUp(IntPtr hwnd, ushort x, ushort y)
{
	PostMessage(hwnd, WM_Lbutton, 0 (((uint)x) << 16 | y)));
	PostMessage(hwnd, WM_LBUTTONUP, 0 (((uint)x) << 16 | y)));
}

public const int WM_Lbutton = 0x0201;//鼠标左键按下
public const int WM_LBUTTONUP = 0x0202;//鼠标左键抬起
public const int WM_SETTEXT = 0x000C;//设置文本

--获取所有进程列表--
public static List<WindowInfo> GetChildWindows(IntPtr hwnd)
{
	var list = new List<WindowInfo>();
	StringBuilder sb = new StringBuilder(4048);
	car idx = 0;
	EnumChildWindows(hwnd, (IntPtr childHwnd, int IParam) => 
	{
		WindowInfo wi = new WindowInfo()
		{
			Hwnd = childHwnd,
			Idx = idx++,	
		};
		GetWindowText(childHwnd, sb, sb.Capacity);
		wi.WindowName = sb.ToString();
		GetClassName(childHwnd, sb, sb.Capacity);
		wi.ClassName = sb.ToString();
		wi.GWL_EXSTYLE = GetWindowLong(childHwnd,GWL_EXSTYLE).ToString();
		wi.GWL_HINSTANCE = GetWindowLong(childHwnd,GWL_HINSTANCE).ToString();
		wi.GWL_ID = GetWindowLong(childHwnd,GWL_ID).ToString();
		wi.GWL_STYLE = GetWindowLong(childHwnd,GWL_STYLE).ToString();
		list.Add(wi);
		return true;
		},0);
		return list;
}

public class WindowInfo
{
	public WindowInfo()
	{
		
	}
	public int Idx { get;set; };
	public IntPtr Hwnd { get;set; };
	public string WindowName { get;set; };
	public string ClassName { get;set; };
	public string GWL_EXSTYLE { get;set; };
	public string GWL_HINSTANCE { get;set; };
	public string GWL_ID { get;set; };
	public string GWL_STYLE h{ get;set; };
}


--复制剪贴板文本--
--必须开启线程，否则当程序多线程时候会复制不到文本--
[STAThread]
public static string GetCopyData()
{
	var copy = "";
	Thread thread = new Thread(
	delegate()
	{
		try
		{
			copy = Clipboard.GetText();
		}
		catch(Exception ex)
		{
			copy = ex.Tostring();
		}
	});
	thread.SetApartmentState(ApartmentState.STA);
	thread.Start();
	thread.Join();
	return copy;
}

 

 转自 https://blog.csdn.net/weixin_44171249/article/details/128038204?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-0-128038204-blog-108761931.pc_relevant_landingrelevant&spm=1001.2101.3001.4242.1&utm_relevant_index=3