如何在不重新启动资源管理器进程的情况下删除桌面带并删除其 dll? [英] how can i remove a deskband and delete its dll without restart the explorer process?

问题描述

我在任务栏上创建了一个桌带.当我想更新deskband的DLL时，我隐藏了它，注销了它，但不幸的是资源管理器仍然把这个DLL保留在内存中.

I created a deskband on taskbar. When I want to update the DLL of the deskband, I hide it , unregister it,but unfortunately the explorer still keeps this DLL in the memory.

如何在不重启资源管理器进程的情况下更新 dll?有没有针对这种情况的 Windows api?

How can I update the dll without restart the explorer process? There is any Windows api for such a case?

推荐答案

不支持"(又名 hack)解决方案 (C/C++):

"Unsupported" (aka hack) solution (C/C++):

HWND hWnd = FindWindowW(L"Shell_TrayWnd", NULL);
if (hWnd != NULL)
    PostMessageW(hWnd, WM_TIMER, 0x18, 0);

这将强制在资源管理器进程中调用 CoFreeUnusedLibraries 函数.

This will force the call of CoFreeUnusedLibraries function in the explorer process.

在 Windows 7 Ultimate SP1 64 位和 Windows XP Professional SP3 32 位上测试.

Tested on Windows 7 Ultimate SP1 64-bit and Windows XP Professional SP3 32-bit.

顺便说一句，您可以按 Windows+D(最小化所有窗口)并等待 3 分钟.程序化黑客基于此行为.它只是在资源管理器进程中调用计时器处理程序.处理程序代码(C/C++)是:

BTW, you can hit Windows+D (to minimize all windows) and wait for 3 minutes. The programmatic hack is based on this behaviour. It just calls the timer handler inside explorer process. And the handler code (C/C++) is:

KillTimer(hWnd, 0x18);
CoFreeUnusedLibraries();

为不存在的定时器调用KillTimer函数没有坏处.

There is no harm in calling of KillTimer function for non-existent timer.

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