private static extern bool GetScrollInfo(IntPtr hWnd, int fnBar, ref SCROLLINFO info);
/// <summary>
/// Initializes a new instance of the MozItemEventArgs class with default settings
/// </summary>
public MozScrollEventArgs(ScrollEventType type, int newValue, SCROLLINFO info)
{
m_type = type;
m_newValue = newValue;
m_info = info;
}
private static extern bool GetScrollInfo (IntPtr hWnd, int fnBar, ref SCROLLINFO info);
/// <summary>
/// Intercept scroll messages to send notifications
/// </summary>
/// <param name="m">Message parameters</param>
protected override void WndProc(ref Message m)
{
// Let the control process the message
base.WndProc (ref m);
// Was this a horizontal scroll message?
if ( m.Msg == WM_HSCROLL )
{
if ( HorizontalScroll != null )
{
uint wParam = (uint)m.WParam.ToInt32();
SCROLLINFO si = new SCROLLINFO();
si.cbSize = Marshal.SizeOf(si);
si.fMask = SIF_ALL;
bool ret = GetScrollInfo(this.Handle,SB_HORZ,ref si);
HorizontalScroll( this,
new MozScrollEventArgs(
GetEventType( wParam & 0xffff), (int)(wParam >> 16),si ) );
}
}
// or a vertical scroll message?
else if ( m.Msg == WM_VSCROLL )
{
if ( VerticalScroll != null )
{
uint wParam = (uint)m.WParam.ToInt32();
SCROLLINFO si = new SCROLLINFO();
si.cbSize = Marshal.SizeOf(si);
si.fMask = SIF_ALL;
bool ret = GetScrollInfo(this.Handle,SB_VERT,ref si);
VerticalScroll( this,
new MozScrollEventArgs(
GetEventType( wParam & 0xffff), (int)(wParam >> 16),si ) );
}
}
}
/// <summary>
/// Initializes a new instance of the MozItemEventArgs class with default settings
/// </summary>
public MozScrollEventArgs(ScrollEventType type , int newValue, SCROLLINFO info)
{
m_type = type;
m_newValue = newValue;
m_info = info;
}