public override void DrawParentBackground(Graphics graphics, Rectangle bounds, Control childControl)
{
using (var mh = ManagedHdc.FromGraphics(graphics))
{
var rect = Win32.RECT.FromRectangle(bounds);
UxTheme.DrawThemeParentBackground(_theme, mh.Hdc, ref rect);
}
}
public void DrawParentBackground(IDeviceContext dc, Rectangle bounds, Control childControl)
{
if (dc == null)
{
throw new ArgumentNullException(nameof(dc));
}
if (childControl == null)
{
throw new ArgumentNullException(nameof(childControl));
}
if (bounds.Width < 0 || bounds.Height < 0)
{
return;
}
if (childControl.IsHandleCreated)
{
using var wgr = new WindowsGraphicsWrapper(dc, AllGraphicsProperties);
var hdc = new HandleRef(wgr, wgr.WindowsGraphics.DeviceContext.Hdc);
RECT rc = bounds;
lastHResult = UxTheme.DrawThemeParentBackground(childControl, hdc, ref rc);
}
}
