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Click here to copy the following block
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 Declare Function GetClientRect Lib "user32" (ByVal hwnd As Long, _
  lpRect As RECT) As Long
Const LB_GETITEMHEIGHT = &H1A1

Type RECT
  Left As Long
  Top As Long
  Right As Long
  Bottom As Long
End Type

' Return the number of visible items in a ListBox control

Function ListBoxVisibleItems(lb As ListBox) As Long
  Dim lpRect As RECT, itemHeight As Long

  ' Get client rectangle area
  GetClientRect lb.hwnd, lpRect

  ' Get height of each item
  itemHeight = SendMessage(lb.hwnd, LB_GETITEMHEIGHT, 0, ByVal 0&)

  ' Do the division
  ListBoxVisibleItems = (lpRect.Bottom - lpRect.Top) \ itemHeight
End Function


Submitted By : Nayan Patel  (Member Since : 5/26/2004 12:23:06 PM)

Job Description : He is the moderator of this site and currently working as an independent consultant. He works with VB.net/ASP.net, SQL Server and other MS technologies. He is MCSD.net, MCDBA and MCSE. In his free time he likes to watch funny movies and doing oil painting.
View all (893) submissions by this author  (Birth Date : 7/14/1981 )


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