在MFC中启动外部exe，如果已经打开，如何将exe置于前面？
我必须在 MFC 应用程序中打开一个外部程序，该程序可以工作，但如果我已经单击了按钮，我不希望它打开另一个实例，而只是将其放在前面。文档说 SW_SHOWNORMAL 参数可以做到这一点，但它对我不起作用。被调用的程序是否也必须为此进行设置？
ShellExecute(NULL, "open", "C:\Test\blahblah.exe", NULL, NULL, SW_SHOWNORMAL);
谢谢， CP
I have to open up a external program in my MFC application, which works but if I have already clicked button, I don't want it to open another instance but just bring it to front. The docs say the SW_SHOWNORMAL parameter does this, but it is not working for me. Does the called program have to setup for this also?
ShellExecute(NULL, "open", "C:\Test\blahblah.exe", NULL, NULL, SW_SHOWNORMAL);
Thanks,
CP
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该文档有点不清楚，这可能让您感到困惑。当以可执行程序为目标时，
ShellExecute()将始终启动一个新进程。当文档提到恢复最小化窗口时，它指的是如果您正在定位一个文档（如 Word 文档），并且注册用于显示该文档的应用程序已经在运行。最好的选择是：
FindWindow() 在 MFC 应用程序中尝试查找外部应用程序，然后仅在外部应用程序不存在时运行 ShellExecute()，否则激活现有窗口。The documentation is a bit unclear, which might have been what confused you. When targetting an executable program,
ShellExecute()will always launch a new process. What the documentation is referring to when it mentions restoring a minimized window is if you are targetting a document (like a Word doc), and the application registered to display the document is already running.Your best bet is to either:
FindWindow()in your MFC application to try to locate the external application, and then only runShellExecute()if it doesn't already exist, otherwise activating the existing window.