如何在Windows XP上放置通知(托盘)图标上下文菜单? [英] How do I position a notification (tray) icon context menu on Windows XP?

问题描述

我正在使用C ++和Win32.

I'm using C++ and Win32.

我希望上下文菜单和设置对话框显示在任务栏图标附近.我想我需要图标的坐标才能做到这一点.

I want my context menu and settings dialog to show up near the tray icon. I think I need the icon's coordinates to do that.

Shell_NotifyIconGetRect在Windows 7之前不可用.

Shell_NotifyIconGetRect wasn't available until Windows 7.

WM_CONTEXTMENU从Win2k开始可用，但是仅在Vista或更高版本(以及指定NOTIFYICON_VERSION_4时)中的wParam中提供坐标.

WM_CONTEXTMENU is available starting in Win2k, but only provides coordinates in wParam as of Vista (and when specifying NOTIFYICON_VERSION_4).

推荐答案

使用GetCursorPos检索点击坐标的效果很好:

Retrieving the click coordinates with GetCursorPos works well:

// Inside WndProc's switch(message)...
case WM_APP_NOTIFYCALLBACK:
    switch (LOWORD(lParam))
    {
    case WM_CONTEXTMENU: // XP and later
        {
            POINT pt = {};
            if( GetCursorPos(&pt) )
                ShowContextMenu(hWnd, pt, iStatus);
        }
        break;
    // ...
    }
    // ...

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