private void DrawSplitHelper(int splitSize)
{
if (this.splitTarget != null)
{
Rectangle rectangle = this.CalcSplitLine(splitSize, 3);
IntPtr handle = this.ParentInternal.Handle;
IntPtr ptr2 = System.Windows.Forms.UnsafeNativeMethods.GetDCEx(new HandleRef(this.ParentInternal, handle), System.Windows.Forms.NativeMethods.NullHandleRef, 0x402);
IntPtr ptr3 = ControlPaint.CreateHalftoneHBRUSH();
IntPtr ptr4 = System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(this.ParentInternal, ptr2), new HandleRef(null, ptr3));
System.Windows.Forms.SafeNativeMethods.PatBlt(new HandleRef(this.ParentInternal, ptr2), rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height, 0x5a0049);
System.Windows.Forms.SafeNativeMethods.SelectObject(new HandleRef(this.ParentInternal, ptr2), new HandleRef(null, ptr4));
System.Windows.Forms.SafeNativeMethods.DeleteObject(new HandleRef(null, ptr3));
System.Windows.Forms.UnsafeNativeMethods.ReleaseDC(new HandleRef(this.ParentInternal, handle), new HandleRef(null, ptr2));
}
}
/// <include file='doc\Splitter.uex' path='docs/doc[@for="Splitter.DrawSplitHelper"]/*' />
/// <devdoc>
/// Draws the splitter line at the requested location. Should only be called
/// by drawSpltBar.
/// </devdoc>
/// <internalonly/>
private void DrawSplitHelper(int splitSize)
{
if (splitTarget == null)
{
return;
}
Rectangle r = CalcSplitLine(splitSize, 3);
IntPtr parentHandle = ParentInternal.Handle;
IntPtr dc = UnsafeNativeMethods.GetDCEx(new HandleRef(ParentInternal, parentHandle), NativeMethods.NullHandleRef, NativeMethods.DCX_CACHE | NativeMethods.DCX_LOCKWINDOWUPDATE);
IntPtr halftone = ControlPaint.CreateHalftoneHBRUSH();
IntPtr saveBrush = SafeNativeMethods.SelectObject(new HandleRef(ParentInternal, dc), new HandleRef(null, halftone));
SafeNativeMethods.PatBlt(new HandleRef(ParentInternal, dc), r.X, r.Y, r.Width, r.Height, NativeMethods.PATINVERT);
SafeNativeMethods.SelectObject(new HandleRef(ParentInternal, dc), new HandleRef(null, saveBrush));
SafeNativeMethods.DeleteObject(new HandleRef(null, halftone));
UnsafeNativeMethods.ReleaseDC(new HandleRef(ParentInternal, parentHandle), new HandleRef(null, dc));
}