private void OnWMGetMinMaxInfo(ref Message m)
{
Telerik.WinControls.NativeMethods.MINMAXINFO structure = (Telerik.WinControls.NativeMethods.MINMAXINFO)Marshal.PtrToStructure(m.LParam, typeof(Telerik.WinControls.NativeMethods.MINMAXINFO));
if (this.Form.IsMdiChild)
{
structure.ptMaxTrackSize.x = Math.Max(structure.ptMaxTrackSize.x, structure.ptMaxSize.x);
}
else if (!this.Form.IsMdiChild && this.IsMaximized && !DWMAPI.IsCompositionEnabled)
{
structure.ptMaxTrackSize.y = this.GetMaximumFormHeightAccordingToCurrentScreen();
if (Environment.OSVersion.Version.Major == 5 && Environment.OSVersion.Version.Minor == 1)
{
Screen screen = Screen.FromControl((Control)this.Form);
if (screen != null)
{
structure.ptMaxPosition.y = screen.WorkingArea.Y - SystemInformation.FrameBorderSize.Height;
}
}
}
structure.ptMinTrackSize.x = SystemInformation.MinimumWindowSize.Width;
structure.ptMinTrackSize.y = this.ClientMargin.Vertical;
MinMaxInfo minMaxInfo = new MinMaxInfo();
minMaxInfo.MaxPosition = new Point(structure.ptMaxPosition.x, structure.ptMaxPosition.y);
minMaxInfo.MaxTrackSize = new Size(structure.ptMaxTrackSize.x, structure.ptMaxTrackSize.y);
minMaxInfo.MinTrackSize = new Size(structure.ptMinTrackSize.x, structure.ptMinTrackSize.y);
minMaxInfo.MaxSize = new Size(structure.ptMaxSize.x, structure.ptMaxSize.y);
minMaxInfo.SizeReserved = new Size(structure.ptReserved.x, structure.ptReserved.y);
this.OnGetMinMaxInfo(minMaxInfo);
structure.ptMaxPosition.x = minMaxInfo.MaxPosition.X;
structure.ptMaxPosition.y = minMaxInfo.MaxPosition.Y;
structure.ptMaxTrackSize.x = minMaxInfo.MaxTrackSize.Width;
structure.ptMaxTrackSize.y = minMaxInfo.MaxTrackSize.Height;
structure.ptMinTrackSize.x = minMaxInfo.MinTrackSize.Width;
structure.ptMinTrackSize.y = minMaxInfo.MinTrackSize.Height;
structure.ptMaxSize.x = minMaxInfo.MaxSize.Width;
structure.ptMaxSize.y = minMaxInfo.MaxSize.Height;
structure.ptReserved.x = minMaxInfo.SizeReserved.Width;
structure.ptReserved.y = minMaxInfo.SizeReserved.Height;
Marshal.StructureToPtr((object)structure, m.LParam, true);
this.CallBaseWndProc(ref m);
}
protected override void WndProc(ref Message m)
{
if (this.shape != null || this.IsMdiContainer)
{
switch (m.Msg)
{
case 131:
m.Result = IntPtr.Zero;
return;
case 133:
m.Result = IntPtr.Zero;
return;
case 134:
this.active = Convert.ToBoolean(m.WParam.ToInt32());
this.Invalidate();
m.Result = (IntPtr)1;
return;
case 174:
case 175:
m.Result = IntPtr.Zero;
return;
}
}
if (m.Msg == 736)
{
if (!RadControl.EnableDpiScaling)
{
return;
}
this.oldDpi = this.currentDpi;
this.currentDpi = (int)(short)(int)m.WParam;
if (this.oldDpi != this.currentDpi)
{
if (this.isMoving)
{
this.shouldScale = true;
}
else
{
this.HandleDpiChanged();
}
}
}
switch (m.Msg)
{
case 36:
Telerik.WinControls.NativeMethods.MINMAXINFO structure = (Telerik.WinControls.NativeMethods.MINMAXINFO)Marshal.PtrToStructure(m.LParam, typeof(Telerik.WinControls.NativeMethods.MINMAXINFO));
if (this.Parent == null)
{
Screen screen = Screen.FromControl((Control)this);
Rectangle workingArea = screen.WorkingArea;
Rectangle bounds = screen.Bounds;
structure.ptMaxSize.x = workingArea.Width;
structure.ptMaxSize.y = workingArea.Height;
structure.ptMaxPosition.x = workingArea.X - bounds.X;
structure.ptMaxPosition.y = workingArea.Y - bounds.Y;
Marshal.StructureToPtr((object)structure, m.LParam, false);
}
base.WndProc(ref m);
return;
case 71:
if (this.IsMdiContainer)
{
this.OnLayout(new LayoutEventArgs((Control)this, "Bounds"));
break;
}
break;
case 132:
if (this.FormBorderStyle == FormBorderStyle.None && this.AllowResize)
{
Point client = this.PointToClient(new Point(m.LParam.ToInt32()));
m.Result = (IntPtr)this.GetHitTest(client);
return;
}
break;
case 787:
this.WmTaskBarMenu();
break;
}
base.WndProc(ref m);
}
