获取窗口实例的窗口句柄 [英] Get Window instance from Window Handle
问题描述
我能够得到用下面的code运行的应用程序窗口句柄。
I am able get a Window handle from running applications using the following code.
foreach (ProcessModule module in process.Modules)
{
if (module.ModuleName.Contains("PresentationFramework.dll") || module.ModuleName.Contains("PresentationFramework.ni.dll"))
{
IntPtr window = process.MainWindowHandle;
}
}
不过，我想从这个处理程序获取窗口实例。这可能吗？
But I want to get the Window instance from this handler. Is it possible?
有快捷的想法吗？
推荐答案
在一个WPF应用程序（或的WinForms）有两个'对象'（即包含信息存储块），以一个窗口：
In a WPF application (or WinForms) there are two 'objects' (that is blocks of memory containing information) to a 'window':
- 在系统窗口对象。
- 在被管理对象包裹的系统对象。
进入系统窗口对象是通过窗口句柄（typeof运算HWND在非托管code，IntPtr的托管code）提供。给定一个窗口句柄，你已经获得的，您可以使用窗口API方法操纵该窗口 。您可以使用的P / Invoke这一点。
Access to the system window object is provided through the window handle (typeof HWND in unmanaged code, IntPtr in managed code). Given a window handle, which you already obtained, you can manipulate that window using the Window API methods. You can use p/invoke for this.
访问管理对象，它驻留在过程中（在托管过程中的情况下，或应用程序域）堆是被禁止的。这种存储器是与其它处理受保护的（1）。
Access to the managed object, which resides in the heap of the process (or AppDomain in the case of a managed process) is forbidden. This memory is 'protected' from other processes(1).
这对象可以处理（或应用程序域）之间共享的唯一方法是通过编组这两个过程的一部分合作努力。甚至访问另一个进程中一个窗口时，这适用于很多的Win32 API的方法。并非所有的访问是可能没有自定义编组。
The only way that objects can be shared between processes (or AppDomains) is through marshalling which is a cooperative effort on the part of both processes. This applies even to many of the Win32 API methods when accessing a window in another process. Not all access is possible without custom marshalling.
请注意，不像的WinForms，WPF不（正常）使用系统窗口控制。如果你的目的是操纵可视树在另一个WPF程序/域，你只是出于运气，除非这一过程提供了某种形式的自动化接口。
Note that unlike WinForms, WPF does not (normally) use system windows for controls. If your aim is to manipulate the visual tree in another WPF process/domain, you're simply out of luck unless that process provides some sort of Automation interface.
（1）虽然可以读取另一个进程的原始内存，在托管堆中的对象移动的目标。人们可以从来没有找到他们，即使你能以某种方式中止该进程的垃圾收集线程。
(1) While it is possible to read the raw memory of another process, objects on a managed heap are moving targets. One could never even find them, even if you could somehow suspend the garbage collecting thread of that process.
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