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如何使用 windows API 和 c# 操作右键单击上下文菜单

[英]how to manipulate right click context menu using windows API and c#

原文 2023-01-03 12:22:35 4 1 c#/ windows/ api/ contextmenu/ manipulate

i have work on an app that manipulate some application context menue to extend its functions, i have checked all the common posts here on stackOverFlow on how to manipulate the menu context using Windows api in C# using functions like GetMenu(...) , InsertMenuItem(...) , ShowOwnedPopups(...) and that comes in vain, here is the scenario, the application i wanna manipulate it context menu has many context menus in many parts but i want to manipulate certain one which belongs to the viewer part.我在一个应用程序上工作，该应用程序可以操纵某些应用程序上下文菜单以扩展其功能，我已经检查了 stackOverFlow 上所有关于如何使用 Windows api 中的 C# 使用GetMenu(...) 、 InsertMenuItem(...)等函数来操纵菜单上下文的常见帖子InsertMenuItem(...) , ShowOwnedPopups(...)并且是徒劳的，这是场景，我想操作它的应用程序上下文菜单在许多部分有很多上下文菜单，但我想操作属于查看器的某些上下文菜单部分。 so i have used spy++ to figure the the handle of the viewer and a send a message WM_CONTEXTMENU using SendMessage(...) function. the menu finally appears and i have its handle.所以我使用 spy++ 来确定查看器的句柄，并使用SendMessage(...) function 发送一条消息WM_CONTEXTMENU 。菜单终于出现了，我有了它的句柄。

i guess after i get the handle it would be constant for the life time of the program for the single running time, but i figured out that the handle is changing every single time ai have clicked right click.我想在我得到句柄后，它在程序的整个生命周期内对于单次运行时间都是不变的，但我发现句柄每次都在改变我点击右键。 and the parent of the context menu isn't the viewer area itself but the desktop that's was disappointing.上下文菜单的父级不是查看器区域本身，而是令人失望的桌面。

so i have two problems所以我有两个问题

1- i can't get the handle directly as using GetMenu(...) passing the handle of the viewer returns null, after some search if found that the context menu has a class name of "#32768" so i have filtered all the open windows to get the one that its class name equlas "#32768". 1-我无法直接获取句柄，因为使用GetMenu(...)传递查看器的句柄返回 null，如果发现上下文菜单的 class 名称为“#32768”，那么我已经过滤了所有打开 windows 得到它的 class 名称等于“#32768”的那个。 and now i can access the handle from my c# code not from the spy.现在我可以从我的 c# 代码而不是间谍访问句柄。 but here is an comming issue: if there is a sub menue.. it also have the same class and unfortunately this is totally logical:/但这是一个即将到来的问题：如果有一个子菜单..它也有相同的 class 不幸的是这是完全合乎逻辑的：/

2- i can't get the context handle before it is shown and if it is shown, i can't manipulate it as i know. 2-我无法在显示之前获取上下文句柄，如果显示，我将无法据我所知对其进行操作。 The second thing is that the context handle continuously changes every single time i right click the mouse.第二件事是，每次我右键单击鼠标时，上下文句柄都会不断变化。 so i can't pass the first time i click then save the handle for the next clicks to make it work.所以我不能在第一次点击时通过，然后保存下一次点击的句柄以使其工作。

any suggestion are very welcomed.任何建议都非常受欢迎。

1 个解决方案

First of all you should figure out if you can just send it a WM_COMMAND message to perform your command.首先，您应该弄清楚是否可以向它发送WM_COMMAND消息来执行您的命令。 A context menu might not use that message but if the application also has a normal menu then it is likely that it will handle the message.上下文菜单可能不会使用该消息，但如果应用程序也有一个普通菜单，那么它很可能会处理该消息。 Note that the command id might change between program versions.请注意，命令 ID 可能会在程序版本之间发生变化。

All Win32 HMENU menus use the same class and MN_GETHMENU is the only related documented message.所有 Win32 HMENU 菜单都使用相同的 class 并且MN_GETHMENU是唯一相关的记录消息。

The recommended solution is to use UI Automation/MSAA to navigate the UI of other applications.推荐的解决方案是使用UI Automation/MSAA来导航其他应用程序的 UI。