Login | Register   
RSS Feed
Download our iPhone app
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.

Tip of the Day
Language: VB4/32,VB5,VB6
Expertise: Intermediate
Sep 18, 1999



Application Security Testing: An Integral Part of DevOps

GetTreeViewFirstVisibleNode - Retrieve the first visible node in a TreeView

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal _
    hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, _
    lParam As Any) As Long

Private Const TV_FIRST = &H1100
Private Const TVM_GETNEXTITEM = (TV_FIRST + 10)
Private Const TVM_SELECTITEM = (TV_FIRST + 11)
Private Const TVGN_CARET = 9

' Return the first visible node of a TreeView

Function GetTreeViewFirstVisibleNode(ByVal TV As TreeView) As Node
    Dim hItem As Long
    Dim selNode As Node
    ' remember the node currently selected
    Set selNode = TV.SelectedItem
    ' get the handle of the first visible Node
    hItem = SendMessage(TV.hWnd, TVM_GETNEXTITEM, TVGN_FIRSTVISIBLE, ByVal 0&)
    ' make it the selected Node
    SendMessage TV.hWnd, TVM_SELECTITEM, TVGN_CARET, ByVal hItem
    ' return the result as a Node object
    Set GetTreeViewFirstVisibleNode = TV.SelectedItem
    ' restore node that was selected
    Set TV.SelectedItem = selNode
End Function

Francesco Balena
Comment and Contribute






(Maximum characters: 1200). You have 1200 characters left.



Thanks for your registration, follow us on our social networks to keep up-to-date