A class for API Created Dynamic Menus


For some controls In my current project, I wanted To be able To display a simple context menu using the Right mouse button.

The solution In plain VB uses an existing menu, which must be extended (at runtime Or at design Time). I found this unacceptable.

Searching the web offered the solution of using the API functions CreatePopupMenu(), TrackPopupMenu() And AppendMenu().

I extended the sample To work With a undetermined number of arguments, thus giving Me the flexibility I needed.

The presented Function Popup() assumes the user wants a context menu at the current mouse pointer location. The argument Array consists of menu items Or separators (presented by a Single dash). The user can Select a menu Item by using either the Left Or Right mouse button. The index of the chosen menu Item Is returned, Or zero If cancelled.

A simple usage of the class module could be : (on a list box)


private Sub List1_MouseUp(Button as Integer, Shift as Integer, _
      x as Single, y as Single)
    Dim oMenu as cPopupMenu
    Dim lMenuChosen as Long
'
    If Button = vbRightButton then
        set oMenu = new cPopupMenu
'
' Pass in the desired menu, use '-' for a separator
'
        lMenuChosen = oMenu.Popup("Menu 1", "Menu 2", "Menu 3", _
                "-", "Menu 4")
'
        Debug.print lMenuChosen
    End If
'
End Sub
'
'

Download Zipped Project File and API Menu Class (3k)



Comments

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Instead of only managing projects organizations do need to manage value! "Doing the right things" and "doing things right" are the essential ingredients for successful software and systems delivery. Unfortunately, with distributed delivery spanning multiple disciplines, geographies and time zones, many organizations struggle with teams working in silos, broken lines of communication, lack of collaboration, inadequate traceability, and poor project visibility. This often results in organizations "doing the …

  • Live Event Date: April 22, 2014 @ 1:00 p.m. ET / 10:00 a.m. PT Database professionals — whether developers or DBAs — can often save valuable time by learning to get the most from their new or existing productivity tools. Whether you're responsible for managing database projects, performing database health checks and reporting, analyzing code, or measuring software engineering metrics, it's likely you're not taking advantage of some of the lesser-known features of Toad from Dell. Attend this live …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds