public static extern bool ExtTextOut(
IntPtr hdc,
int X,
int Y,
uint fuOptions,
[In] ref Telerik.WinControls.NativeMethods.RECT lprc,
[MarshalAs(UnmanagedType.LPWStr)] string lpString,
uint cbCount,
[In] int[] lpDx);
protected virtual void InvalidateNC(Rectangle bounds)
{
if (!this.Form.IsHandleCreated)
{
return;
}
Telerik.WinControls.NativeMethods.RECT rcUpdate = new Telerik.WinControls.NativeMethods.RECT(bounds.Left - this.ClientMargin.Left, bounds.Top - this.ClientMargin.Top, bounds.Right, bounds.Bottom);
Telerik.WinControls.NativeMethods.RedrawWindow(new HandleRef((object)this, this.Form.Handle), ref rcUpdate, new HandleRef((object)null, IntPtr.Zero), 1025);
}
protected override void WndProc(ref Message m)
{
if (m.Msg == 532)
{
Telerik.WinControls.NativeMethods.RECT structure = (Telerik.WinControls.NativeMethods.RECT)Marshal.PtrToStructure(m.LParam, typeof(Telerik.WinControls.NativeMethods.RECT));
this.hostControl.Element.InvalidateMeasure(true);
this.hostControl.Element.Measure((SizeF)this.ClientSize);
int childMaxWidth = this.hostControl.Element.GetChildMaxWidth();
structure.bottom = structure.top + this.hostControl.Element.Size.Height + this.FormBehavior.ClientMargin.Top + this.FormBehavior.ClientMargin.Bottom;
if (structure.right - structure.left < childMaxWidth + this.hostControl.Element.Padding.Left + this.hostControl.Element.Padding.Right)
{
structure.right = structure.left + childMaxWidth + this.hostControl.Element.Padding.Left + this.hostControl.Element.Padding.Right + this.FormBehavior.ClientMargin.Left + this.FormBehavior.ClientMargin.Right;
}
Marshal.StructureToPtr((object)structure, m.LParam, true);
}
base.WndProc(ref m);
}
private void OnWMNCPaint(ref Message m)
{
if (!this.Form.IsHandleCreated)
{
return;
}
HandleRef hWnd = new HandleRef((object)this, this.Form.Handle);
Telerik.WinControls.NativeMethods.RECT rect = new Telerik.WinControls.NativeMethods.RECT();
if (!Telerik.WinControls.NativeMethods.GetWindowRect(hWnd, ref rect))
{
return;
}
Rectangle rectangle = new Rectangle(0, 0, rect.right - rect.left, rect.bottom - rect.top);
if (rectangle.Width <= 0 || rectangle.Height <= 0)
{
return;
}
IntPtr zero = IntPtr.Zero;
int flags = 19;
IntPtr handle = IntPtr.Zero;
if (m.WParam != (IntPtr)1)
{
flags |= 128;
handle = m.WParam;
}
HandleRef hrgnClip = new HandleRef((object)this, handle);
IntPtr dcEx = Telerik.WinControls.NativeMethods.GetDCEx(hWnd, hrgnClip, flags);
try
{
if (!(dcEx != IntPtr.Zero))
{
return;
}
using (Graphics graphics = Graphics.FromHdc(dcEx))
this.OnNCPaint(graphics);
}
finally
{
Telerik.WinControls.NativeMethods.ReleaseDC(new HandleRef((object)this, m.HWnd), new HandleRef((object)null, dcEx));
}
}
private void OnWMNCCalcSize(ref Message m)
{
if (m.WParam == new IntPtr(1))
{
Telerik.WinControls.NativeMethods.NCCALCSIZE_PARAMS nccalcsizeParams = new Telerik.WinControls.NativeMethods.NCCALCSIZE_PARAMS();
Telerik.WinControls.NativeMethods.NCCALCSIZE_PARAMS structure = (Telerik.WinControls.NativeMethods.NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(Telerik.WinControls.NativeMethods.NCCALCSIZE_PARAMS));
Padding clientMargin = this.ClientMargin;
if (this.Form.IsMdiChild && this.IsMaximized && !DWMAPI.IsCompositionEnabled)
{
structure.rgrc[0].top = -clientMargin.Top;
}
structure.rgrc[0].top += clientMargin.Top;
structure.rgrc[0].left += clientMargin.Left;
structure.rgrc[0].right -= clientMargin.Right;
structure.rgrc[0].bottom -= clientMargin.Bottom;
Marshal.StructureToPtr((object)structure, m.LParam, true);
m.Result = IntPtr.Zero;
}
else
{
this.CallBaseWndProc(ref m);
Telerik.WinControls.NativeMethods.RECT rect = new Telerik.WinControls.NativeMethods.RECT();
Telerik.WinControls.NativeMethods.RECT structure = (Telerik.WinControls.NativeMethods.RECT)Marshal.PtrToStructure(m.LParam, typeof(Telerik.WinControls.NativeMethods.RECT));
Padding clientMargin = this.ClientMargin;
if (this.Form.IsMdiChild && this.IsMaximized && !DWMAPI.IsCompositionEnabled)
{
structure.top = -clientMargin.Top;
}
structure.top += clientMargin.Top;
structure.left += clientMargin.Left;
structure.right -= clientMargin.Right;
structure.bottom -= clientMargin.Bottom;
Marshal.StructureToPtr((object)structure, m.LParam, true);
m.Result = IntPtr.Zero;
}
}
