C++ 如何检测 HWND 是否属于我的应用程序？
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How to detect if a HWND belong to my application?
提问by TheBlueNotebook
My application creates multiple windows and I want to enforce a Z order in-between these windows, i.e, if two windows happen to overlap, a window with a higher priority should be painted over the window with lower priority.
我的应用程序创建了多个窗口，我想在这些窗口之间强制执行 Z 顺序，即，如果两个窗口碰巧重叠，则应将优先级较高的窗口绘制在优先级较低的窗口上。
I am getting the handles of different (invisible/visible) windows wrt to a window using the GetWindowfunction. I want to know if a particular window returned by this function is created by my application. Any ideas on how can I get that information?
我正在使用GetWindow函数将不同（不可见/可见）窗口的句柄写入窗口。我想知道此函数返回的特定窗口是否由我的应用程序创建。关于如何获取该信息的任何想法？
回答by CristiFati
You can use [MS.Docs]: GetWindowThreadProcessId function.
您可以使用[MS.Docs]: GetWindowThreadProcessId 函数。
In order to check the current process id, use [MS.Docs]: GetCurrentProcessId function.
为了检查当前进程 ID，请使用[MS.Docs]: GetCurrentProcessId 函数。
If your app is more complex and spawns multiple processes that create windows, you'll have to construct the process tree using [MS.Docs]: Tool Help Functions((CreateToolhelp32Snapshot, Process32First, Process32Next) + CloseHandle).
如果您的应用程序更复杂并产生多个创建窗口的进程，则必须使用[MS.Docs]构建进程树：工具帮助函数（（CreateToolhelp32Snapshot, Process32First, Process32Next）+ CloseHandle）。
