• 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");
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  • 原文地址:https://www.cnblogs.com/swjian/p/8418628.html
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