/// <summary>
/// Gets the window handle for the game view window.
/// </summary>
/// <param name="processId">The id of the process that owns the game view window.</param>
/// <returns>Window handle if the window was found, IntPtr.Zero otherwise.</returns>
internal static IntPtr GetGameViewWindowHandle(int processId)
{
const string GameViewCaption = "UnityEditor.GameView";
const string UnityContainerClassName = "UnityContainerWndClass";
var window = new IntPtr();
Win32Helpers.EnumWindows(delegate(IntPtr hWnd, IntPtr lParam)
{
if (!Win32Helpers.IsWindowVisible(hWnd))
{
return(true);
}
var windowProcessId = 0;
Win32Helpers.GetWindowThreadProcessId(hWnd, out windowProcessId);
if (windowProcessId == processId)
{
StringBuilder builder = new StringBuilder(256);
Win32Helpers.GetClassName(hWnd, builder, 256);
if (builder.ToString() == UnityContainerClassName)
{
//Ok, we found one of our containers, let's try to find the game view handle among the children
Win32Helpers.EnumChildWindows(hWnd, delegate(IntPtr childHwnd, IntPtr childParam)
{
if (!Win32Helpers.IsWindowVisible(childHwnd))
{
return(true);
}
int childLength = Win32Helpers.GetWindowTextLength(childHwnd);
if (childLength == 0)
{
return(true);
}
StringBuilder childBuilder = new StringBuilder(childLength);
Win32Helpers.GetWindowText(childHwnd, childBuilder, childLength + 1);
if (childBuilder.ToString() == GameViewCaption)
{
//Found it!
window = childHwnd;
return(false);
}
return(true);
},
IntPtr.Zero);
}
}
return(true);
}, IntPtr.Zero);
return(window);
}