protected override void WndProc(ref Message m)
{
int msg = m.Msg;
if (msg <= 15)
{
if (msg != 5)
{
if (msg == 15)
{
MdiClientController.PAINTSTRUCT pAINTSTRUCT = default(MdiClientController.PAINTSTRUCT);
IntPtr hdc = MdiClientController.BeginPaint(m.HWnd, ref pAINTSTRUCT);
using (Graphics graphics = Graphics.FromHdc(hdc))
{
Rectangle clipRect = new Rectangle(pAINTSTRUCT.rcPaint.left, pAINTSTRUCT.rcPaint.top, pAINTSTRUCT.rcPaint.right - pAINTSTRUCT.rcPaint.left, pAINTSTRUCT.rcPaint.bottom - pAINTSTRUCT.rcPaint.top);
int width = (this.mdiClient.ClientRectangle.Width > 0) ? this.mdiClient.ClientRectangle.Width : 0;
int height = (this.mdiClient.ClientRectangle.Height > 0) ? this.mdiClient.ClientRectangle.Height : 0;
using (Image image = new Bitmap(width, height))
{
using (Graphics graphics2 = Graphics.FromImage(image))
{
IntPtr hdc2 = graphics2.GetHdc();
Message message = Message.Create(m.HWnd, 792, hdc2, IntPtr.Zero);
base.DefWndProc(ref message);
graphics2.ReleaseHdc(hdc2);
if (this.image != null)
{
this.DrawImage(graphics2, clipRect);
}
this.OnPaint(new PaintEventArgs(graphics2, clipRect));
}
graphics.DrawImage(image, this.mdiClient.ClientRectangle);
}
}
MdiClientController.EndPaint(m.HWnd, ref pAINTSTRUCT);
return;
}
}
else
{
this.mdiClient.Invalidate();
}
}
else
{
if (msg == 20)
{
return;
}
if (msg == 131)
{
if (!this.autoScroll)
{
MdiClientController.ShowScrollBar(m.HWnd, 3, 0);
}
}
}
base.WndProc(ref m);
}
private static extern bool EndPaint(IntPtr hWnd, ref MdiClientController.PAINTSTRUCT paintStruct);