如何为所有opend窗口获取（hwnd）句柄窗口 [英] How to get (hwnd)handle window for all opend windows

问题描述

以下代码返回Excel的唯一ID。

Hi,

The below code returns unique Id for the Excel.

[DllImportAttribute("User32.dll")]
        private static extern int FindWindow(String ClassName, String WindowName);
int hWnd = FindWindow(null,"Micosoft Excel");

但我打开了一个excel文件名Book1.xls，下面的代码返回0.

But i have opened one excel file name "Book1.xls" the below code return 0.

<pre lang="cs">[DllImportAttribute(&quot;User32.dll&quot;)]
        private static extern int FindWindow(String ClassName, String WindowName);
int hWnd = FindWindow(null,""Book1"");</pre>

你能不能请帮我获取打开文件的唯一ID。



谢谢，

can you please help me to get unique id of my opened file.

Thanks,

推荐答案

如果你真的想要要获取Windows会话中的所有窗口，您可以首先检索桌面的HWMD，然后获取其所有子项。请参阅：

http ：//msdn.microsoft.com/en-us/library/windows/desktop/ms633504%28v=vs.85%29.aspx [ ^ ]，

< a href =http://msdn.microsoft.com/en-us/library/windows/desktop/ms633515%28v=vs.85%29.aspx> http://msdn.microsoft.com/en-us /library/windows/desktop/ms633515%28v=vs.85%29.aspx [ ^ ]。



然而，我''我不确定你是否需要那个。相反，您可以获取所有正在执行的进程，然后尝试获取每个执行进程的主窗口句柄（它可能有也可能没有，并且此尝试可能会抛出异常，所以要小心）。方法如下：

http://msdn.microsoft.com/en- us / library / 1f3ys1f9.aspx [ ^ ]，

http://msdn.microsoft.com/ en-us / library / x8b2hzk8.aspx [ ^ ]，

http://msdn.microsoft。 com / en-us / library / z3w4xdc9.aspx [ ^ ]，

http://msdn.microsoft.com/en-us/library/system.diagnostics.process.mainwindowhandle.aspx [ ^ ]（这里注意可以抛出的异常）。



最后，我不确定整个想法是否非常有用。您无法100％保证您找到的流程或窗口正是您真正需要的流程或窗口。对于某些不相关的应用程序，进程和窗口标题可能会意外地相同。此外，您访问一个单独的进程是非常有限的，因为这些进程是完全隔离的。有可能，你需要使用Office自动化或其他东西。

-SA

If you really want to get all windows in the Windows session, you can first retrieve the HWMD of desktop and than get all its children. Please see:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms633504%28v=vs.85%29.aspx[^],
http://msdn.microsoft.com/en-us/library/windows/desktop/ms633515%28v=vs.85%29.aspx[^].

However, I''m not sure you need exactly that. Instead, you can get all the executing processes and then try to get a main window handle of each (which it may or may not have, and this attempt can throw an exception, so be careful). Here is how:
http://msdn.microsoft.com/en-us/library/1f3ys1f9.aspx[^],
http://msdn.microsoft.com/en-us/library/x8b2hzk8.aspx[^],
http://msdn.microsoft.com/en-us/library/z3w4xdc9.aspx[^],
http://msdn.microsoft.com/en-us/library/system.diagnostics.process.mainwindowhandle.aspx[^] (here, pay attention for the exceptions which can be thrown).

And finally, I''m not sure the whole idea is very useful. You cannot get 100% guarantee that a process or a window you find is exactly the one you really need. Both process and window title can accidentally be the same for some unrelated applications. Besides, you access to a separate process is quite limited, because the processes are well isolated. Chances are, you would need to use Office automation, or something else.

—SA

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