C# Signature:

[DllImport("user32.dll")]
static extern bool GetScrollInfo(IntPtr hwnd, int fnBar, ref SCROLLINFO lpsi);

VB Signature:

Declare Function GetScrollInfo Lib "user32" (ByVal hWnd As IntPtr, ByVal fnBar As Integer, ByRef lpsi As SCROLLINFO) As Integer

C# User-Defined Types:

    [Missing]

VB User-Defined Types:

    Private Structure SCROLLINFO
    Public cbSize As Integer
    Public fMask As Integer
    Public nMin As Integer
    Public nMax As Integer
    Public nPage As Integer
    Public nPos As Integer
    Public nTrackPos As Integer
    End Structure

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

    Private Function GetScrollBarPageSize(ByVal hWnd As IntPtr, ByVal fnBar As Integer) As Integer
    Dim si As New SCROLLINFO
    With si
        .cbSize = Len(si)
        .fMask = SIF_PAGE
    End With
    Dim lRet As Integer = GetScrollInfo(hWnd, fnBar, si)
    If lRet <> 0 Then
        Return si.nPage
    Else
        Return -1
    End If
    End Function

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