ContextMenu.ahk

;Checks if a context menu is active and has focus
;Need to check if other context menus are active (trillian, browsers,...)
IsContextMenuActive()
{
    GuiThreadInfoSize := 24 + 6 * A_PtrSize
    VarSetCapacity(GuiThreadInfo, GuiThreadInfoSize)
    NumPut(GuiThreadInfoSize, GuiThreadInfo, 0)
    if not DllCall("GetGUIThreadInfo", uint, 0, "Ptr", &GuiThreadInfo)
    {
      ;MsgBox GetGUIThreadInfo() indicated a failure.
      return
    }
    ; GuiThreadInfo contains a DWORD flags at byte 4
    ; Bit 4 of this flag is set if the thread is in menu mode. GUI_INMENUMODE = 0x4
    if (NumGet(GuiThreadInfo, 4) & 0x4)
        return true
    return false
}

;This stuff doesn't properly use COM.ahk yet :(
/*
Executes context menu entries of shell items without showing their menus
Usage:
ShellContextMenu("Desktop",1)            ;Calls "Next Desktop background" in Win7
1st parameter can be "Desktop" for empty selection desktop menu, a path, or an idl
Leave 2nd parameter empty to show context menu and extract idn by clicking on an entry (shows up in debugview)
*/
ShellContextMenu(sPath,idn=0)
{
    result := DllCall(Settings.DllPath "\Explorer.dll\ExecuteContextMenuCommand", "Str", sPath, "Int", idn, "PTR", A_ScriptHwnd)
    if(Errorlevel != 0)
        Notify("Couldn't execute context menu command!", "Error Calling ExecuteContextMenuCommand() in Explorer.dll!", 5, NotifyIcons.Error)
}