MaxGUI: Context menu on treeview

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SebHoll

You need to create the menu before hand - you don't create it once the event is generated. Have a look at this modified CreateTreeView example that supports right-click.

' createtreeview.bmx

Strict 

Local window:TGadget=CreateWindow("My Window",50,50,400,300)
Local treeview:TGadget=CreateTreeView(0,0,350,250,window)

SetGadgetLayout(treeview,2,2,2,2)

Local root:TGadget=TreeViewRoot(treeview)

Local help:TGadget=AddTreeViewNode("Help",root)
AddTreeViewNode("topic 1",help)
AddTreeViewNode("topic 2",help)
AddTreeViewNode("topic 3",help)

Local projects:TGadget=AddTreeViewNode("Projects",root)
AddTreeViewNode("project 1",projects)
AddTreeViewNode("project 2",projects)
AddTreeViewNode("project 3 is a big waste of time",projects)

Local mnuRightClick:TGadget=CreateMenu("Popup Menu",0,Null)
CreateMenu("Option 1",101,mnuRightClick)
CreateMenu("Option 2",102,mnuRightClick)


Repeat

	Select WaitEvent()
	
		Case EVENT_GADGETMENU;If EventSource() = treeview Then PopupWindowMenu(treeview,mnuRightClick)
	
		Case EVENT_MENUACTION;Local tmpData = EventData();If tmpData = 101 Then Notify("Option 1") ElseIf tmpData = 102 Then Notify("Option 2")
	
		Case EVENT_WINDOWCLOSE;End
		
	End Select

Forever

You then use PopupWindowMenu() to display it once the event is generated.

Seb