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();//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 == )
{
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 = (-);
private const int WS_VISIBLE = 0x10000000;
private const int WM_CLOSE = 0x10;
private const int WS_CHILD = 0x40000000; private const int SW_HIDE = ; //{隐藏, 并且任务栏也没有最小化图标}
private const int SW_SHOWNORMAL = ; //{用最近的大小和位置显示, 激活}
private const int SW_NORMAL = ; //{同 SW_SHOWNORMAL}
private const int SW_SHOWMINIMIZED = ; //{最小化, 激活}
private const int SW_SHOWMAXIMIZED = ; //{最大化, 激活}
private const int SW_MAXIMIZE = ; //{同 SW_SHOWMAXIMIZED}
private const int SW_SHOWNOACTIVATE = ; //{用最近的大小和位置显示, 不激活}
private const int SW_SHOW = ; //{同 SW_SHOWNORMAL}
private const int SW_MINIMIZE = ; //{最小化, 不激活}
private const int SW_SHOWMINNOACTIVE = ; //{同 SW_MINIMIZE}
private const int SW_SHOWNA = ; //{同 SW_SHOWNOACTIVATE}
private const int SW_RESTORE = ; //{同 SW_SHOWNORMAL}
private const int SW_SHOWDEFAULT = ; //{同 SW_SHOWNORMAL}
private const int SW_MAX = ; //{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, , , 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");