protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case NativeWindowCommon.WM_VSCROLL:
case NativeWindowCommon.WM_HSCROLL:
//keep all FitToMDI children at location 0,0 even after scroll
foreach (var item in mdiClient.MdiChildren)
{
TagData tagData = item.Tag as TagData;
if (tagData != null && (tagData.WindowType == WindowType.FitToMdi || tagData.IsMDIClientForm))
{
item.Location = new Point();
}
}
mdiClient.Invalidate();
break;
case NativeWindowCommon.WM_PAINT:
using (Graphics gr = Graphics.FromHwnd(mdiClient.Handle))
{
//Paint the mdiClient its children, background image, border etc.
ControlRenderer.PaintMgPanel(mdiClient, gr);
NativeWindowCommon.ValidateRect(mdiClient.Handle, IntPtr.Zero);
}
return;
default:
break;
}
base.WndProc(ref m);
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
internal static void MgPanel_Paint(object sender, PaintEventArgs e)
{
Control ctrl = sender as MgPanel;
// for mgpanel with parent MgTabPage set paint event
if (ctrl is MgPanel && ctrl.Parent is MgTabPage)
{
MgPanel senderMgPanel = (MgPanel)sender;
ControlRenderer.FillRectAccordingToGradientStyle(((PaintEventArgs)e).Graphics, senderMgPanel.ClientRectangle, senderMgPanel.BackColor,
senderMgPanel.ForeColor, ControlStyle.NoBorder, false, senderMgPanel.GradientColor,
senderMgPanel.GradientStyle);
}
else
{
ControlRenderer.PaintMgPanel(ctrl, e.Graphics);
}
}
