我正在为游戏开发一个Launcher应用程序。很像XNA中的XBOX仪表板。我想在它启动的过程(游戏)退出时打开我的程序。通过一个简单的游戏,这是有效的:
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool SetForegroundWindow(IntPtr hWnd);
[DllImportAttribute("User32.DLL")]
private static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
private const int SW_SHOW = 5;
private const int SW_MINIMIZE = 6;
private const int SW_RESTORE = 9;
public void Run(file)
{
ProcessStartInfo startInfo = new ProcessStartInfo(file);
Environment.CurrentDirectory = Path.GetDirectoryName(file);
startInfo.Verb = "runas";
var process = Process.Start(startInfo);
process.WaitForExit();
ShowWindow(Game1.Handle, SW_RESTORE);
SetForegroundWindow(Game1.Handle);
}
Game1.Handle来自:
Handle = Window.Handle;
在Game1的加载内容方法中。
我的问题是如何在完成运行过程的所有子进程完成后打开窗口?
就像发射器发射游戏一样。
我认为一些更高级的程序员可能知道这个伎俩。
提前致谢!
答案 0 :(得分:2)
您可以使用Process.Exited事件
int counter == 0;
.....
//start process, assume this code will be called several times
counter++;
var process = new Process ();
process.StartInfo = new ProcessStartInfo(file);
//Here are 2 lines that you need
process.EnableRaisingEvents = true;
//Just used LINQ for short, usually would use method as event handler
process.Exited += (s, a) =>
{
counter--;
if (counter == 0)//All processed has exited
{
ShowWindow(Game1.Handle, SW_RESTORE);
SetForegroundWindow(Game1.Handle);
}
}
process.Start();
更合适的游戏方式是使用名为semaphore,但我建议您先从Exited事件开始,然后当您了解它的工作方式时,请转到信号量