C# How to determine if hwnd is in tray icons

Question

I am trying to get the hwnd of the current tray icons. what I did is getting the hWnd of system trat window by using this code:

[DllImport(\"user32.dll\", SetLas         


        

Answer 1

There are no child handles. You can verify this via Spy++.

It is not hosing sub-controls, but rendering and handling things like tooltips directly.

Answer 2

The 'children' of the ToolbarWindow32 are not windows. They are toolbar buttons. You'd use the TB_BUTTONCOUNT message to retrieve the number of buttons, TB_GETBUTTONINFO message to retrieve info about such a button. Quite hard to do btw since the window belongs to another process, just using SendMessage() doesn't work because the pointer isn't valid. And ultimately futile, such a button doesn't contain any information about what kind of process is associated with the icon. That's info that's buried inside the shell, you can't get to it.

Answer 3

I checked that if window is opened on desktop then it has styles:

WS_VISIBLE=true
WS_MINIMIZE=false

if window is in taskbar:

WS_VISIBLE=true
WS_MINIMIZE=true

if window is in system tray:

WS_VISIBLE=false
WS_MINIMIZE=true

So you can play with styles to determine if window is in tray:

public IsWindowFromTray(hWnd)
{    
    bool isMinimized = Win32Natives.IsIconic(hWnd);
    bool isVisible = Win32Natives.IsWindowVisible(hWnd);

    return isMinimized && !isVisible;
}

For the majority of apps it works.

PS: I used pinvoke

[DllImport("user32.dll")]
public static extern bool IsIconic(IntPtr hWnd);

[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool IsWindowVisible(IntPtr hWnd);