C# winform嵌入unity3D
最近做项目需要winform嵌入unity的功能，由于完全没接触过这类嵌入的于是在网上搜，有一种方法是UnityWebPlayer插件，也开始琢磨了一段时间，不过一会发现在5.4版本以后这个东西就被淘汰了，所以果断放弃。后来有探索新方法，看到另一种使用代码实现的方法，又开始鼓捣，结果鼓捣完发现也存在问题，但是没有解决方案，于是有了这篇文章。
问题：鼠标在winform中操作unity没有反应。
对比：两台机器，A:win7 像素1440*900的老古董，B:win10 1920*1080的新科技。
得出结论：在A机器上不好使，在B上好使。
原因：屏幕分辨率惹的祸，unity的程序是1920*1080，放在A上可能会覆盖掉unity的本身操作，从而导致无效果。
解决办法：unity程序默认启动设置为全屏（去掉框框那种）。
就这个问题看似很好弄，可是菜鸟的我整整鼓捣两天，哎...。最开始以为是系统，插件，引用等问题，后来被一一排除，竟然是分辨率...，接下来看主要实现的代码。
using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Runtime.InteropServices; using System.Text; using System.Threading; using System.Windows.Forms; namespace demo { public class exetowinform { EventHandler appIdleEvent = null; Control ParentCon = null; string strGUID = ""; public exetowinform(Control C, string Titlestr) { appIdleEvent = new EventHandler(Application_Idle); ParentCon = C; strGUID = Titlestr; } /// <summary> /// 将属性<code>AppFilename</code>指向的应用程序打开并嵌入此容器 /// </summary> public IntPtr Start(string FileNameStr) { if (m_AppProcess != null) { Stop(); } try { ProcessStartInfo info = new ProcessStartInfo(FileNameStr); info.UseShellExecute = true; info.WindowStyle = ProcessWindowStyle.Minimized; m_AppProcess = System.Diagnostics.Process.Start(info); m_AppProcess.WaitForInputIdle(); Application.Idle += appIdleEvent; } catch { if (m_AppProcess != null) { if (!m_AppProcess.HasExited) m_AppProcess.Kill(); m_AppProcess = null; } } return m_AppProcess.Handle; } /// <summary> /// 确保应用程序嵌入此容器 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> void Application_Idle(object sender, EventArgs e) { if (this.m_AppProcess == null || this.m_AppProcess.HasExited) { this.m_AppProcess = null; Application.Idle -= appIdleEvent; return; } Thread.Sleep(300);//这里加阻塞 ,时间可以大些 Application.DoEvents(); if (m_AppProcess.MainWindowHandle == IntPtr.Zero) return; Application.Idle -= appIdleEvent; EmbedProcess(m_AppProcess, ParentCon); } /// <summary> /// 应用程序结束运行时要清除这里的标识 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> void m_AppProcess_Exited(object sender, EventArgs e) { m_AppProcess = null; } /// <summary> /// 将属性<code>AppFilename</code>指向的应用程序关闭 /// </summary> public void Stop() { if (m_AppProcess != null)// && m_AppProcess.MainWindowHandle != IntPtr.Zero) { try { if (!m_AppProcess.HasExited) m_AppProcess.Kill(); } catch (Exception) { } m_AppProcess = null; } } #region 属性 /// <summary> /// application process /// </summary> Process m_AppProcess = null; /// <summary> /// 标识内嵌程序是否已经启动 /// </summary> public bool IsStarted { get { return (this.m_AppProcess != null); } } #endregion 属性 #region Win32 API [DllImport("user32.dll", EntryPoint = "GetWindowThreadProcessId", SetLastError = true, CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)] private static extern long GetWindowThreadProcessId(long hWnd, long lpdwProcessId); [DllImport("user32.dll", SetLastError = true)] private static extern IntPtr FindWindow(string lpClassName, string lpWindowName); [DllImport("user32.dll", SetLastError = true)] private static extern long SetParent(IntPtr hWndChild, IntPtr hWndNewParent); [DllImport("user32.dll", EntryPoint = "GetWindowLongA", SetLastError = true)] private static extern long GetWindowLong(IntPtr hwnd, int nIndex); public static IntPtr SetWindowLong(HandleRef hWnd, int nIndex, int dwNewLong) { if (IntPtr.Size == 4) { return SetWindowLongPtr32(hWnd, nIndex, dwNewLong); } return SetWindowLongPtr64(hWnd, nIndex, dwNewLong); } [DllImport("user32.dll", EntryPoint = "SetWindowLong", CharSet = CharSet.Auto)] public static extern IntPtr SetWindowLongPtr32(HandleRef hWnd, int nIndex, int dwNewLong); [DllImport("user32.dll", EntryPoint = "SetWindowLongPtr", CharSet = CharSet.Auto)] public static extern IntPtr SetWindowLongPtr64(HandleRef hWnd, int nIndex, int dwNewLong); [DllImport("user32.dll", SetLastError = true)] private static extern long SetWindowPos(IntPtr hwnd, long hWndInsertAfter, long x, long y, long cx, long cy, long wFlags); [DllImport("user32.dll", SetLastError = true)] private static extern bool MoveWindow(IntPtr hwnd, int x, int y, int cx, int cy, bool repaint); [DllImport("user32.dll", EntryPoint = "PostMessageA", SetLastError = true)] private static extern bool PostMessage(IntPtr hwnd, uint Msg, uint wParam, uint lParam); [DllImport("user32.dll", SetLastError = true)] private static extern IntPtr GetParent(IntPtr hwnd); [DllImport("user32.dll", EntryPoint = "ShowWindow", SetLastError = true)] static extern bool ShowWindow(IntPtr hWnd, int nCmdShow); private const int SWP_NOOWNERZORDER = 0x200; private const int SWP_NOREDRAW = 0x8; private const int SWP_NOZORDER = 0x4; private const int SWP_SHOWWINDOW = 0x0040; private const int WS_EX_MDICHILD = 0x40; private const int SWP_FRAMECHANGED = 0x20; private const int SWP_NOACTIVATE = 0x10; private const int SWP_ASYNCWINDOWPOS = 0x4000; private const int SWP_NOMOVE = 0x2; private const int SWP_NOSIZE = 0x1; private const int GWL_STYLE = (-16); private const int WS_VISIBLE = 0x10000000; private const int WM_CLOSE = 0x10; private const int WS_CHILD = 0x40000000; private const int SW_HIDE = 0; //{隐藏, 并且任务栏也没有最小化图标} private const int SW_SHOWNORMAL = 1; //{用最近的大小和位置显示, 激活} private const int SW_NORMAL = 1; //{同 SW_SHOWNORMAL} private const int SW_SHOWMINIMIZED = 2; //{最小化, 激活} private const int SW_SHOWMAXIMIZED = 3; //{最大化, 激活} private const int SW_MAXIMIZE = 3; //{同 SW_SHOWMAXIMIZED} private const int SW_SHOWNOACTIVATE = 4; //{用最近的大小和位置显示, 不激活} private const int SW_SHOW = 5; //{同 SW_SHOWNORMAL} private const int SW_MINIMIZE = 6; //{最小化, 不激活} private const int SW_SHOWMINNOACTIVE = 7; //{同 SW_MINIMIZE} private const int SW_SHOWNA = 8; //{同 SW_SHOWNOACTIVATE} private const int SW_RESTORE = 9; //{同 SW_SHOWNORMAL} private const int SW_SHOWDEFAULT = 10; //{同 SW_SHOWNORMAL} private const int SW_MAX = 10; //{同 SW_SHOWNORMAL} #endregion Win32 API /// <summary> /// 将指定的程序嵌入指定的控件 /// </summary> private void EmbedProcess(Process app, Control control) { // Get the main handle if (app == null || app.MainWindowHandle == IntPtr.Zero || control == null) return; try { // Put it into this form SetParent(app.MainWindowHandle, control.Handle); } catch (Exception) { } try { // Remove border and whatnot SetWindowLong(new HandleRef(this, app.MainWindowHandle), GWL_STYLE, WS_VISIBLE); SendMessage(app.MainWindowHandle, WM_SETTEXT, IntPtr.Zero, strGUID); } catch (Exception) { } try { // Move the window to overlay it on this window MoveWindow(app.MainWindowHandle, 0, 0, control.Width, control.Height, true); } catch (Exception) { } } [DllImport("User32.dll", EntryPoint = "SendMessage")] private static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam); const int WM_SETTEXT = 0x000C; } }
调用方法：
//panel1是在窗体中的控件名 exetowinform fr = new exetowinform(panel1, ""); //打开unity生成的exe文件 fr.Start(@"E:\Text.exe");
