//Update the thumbnail with new positions
private void UpdateThumb()
{
if (thumb != IntPtr.Zero) //That would be bad!
{
Win32Api.PSIZE size;
Win32Api.DwmQueryThumbnailSourceSize(thumb, out size); //Get the source thumbnail size
Win32Api.DWM_THUMBNAIL_PROPERTIES props = new Win32Api.DWM_THUMBNAIL_PROPERTIES(); //And it's properties
//We want it visible!
props.fVisible = true;
props.dwFlags = Win32Api.DWM_TNP_VISIBLE | Win32Api.DWM_TNP_RECTDESTINATION | Win32Api.DWM_TNP_OPACITY;
props.opacity = (byte)255;
Win32Api.RECT rect = new Win32Api.RECT();
//I'm not exactly sure why this is like this.
//It may be best to leave it be.
//Just...don't touch it
int offset = 23;
rect.Left = preview.Left + groupPreview.Left + container.Panel2.Left + container.Left + tabControl.Left + 5;
rect.Top = preview.Top + groupPreview.Top + container.Panel2.Top + +container.Top + tabControl.Top + offset;
rect.Right = preview.Right + groupPreview.Left + container.Panel2.Left + container.Left + tabControl.Left + 4;
rect.Bottom = preview.Bottom + groupPreview.Top + container.Panel2.Top + container.Top + tabControl.Top + offset - 1;
props.rcDestination = rect;
//Update the properties with the new dimensions
Win32Api.DwmUpdateThumbnailProperties(thumb, ref props);
}
}
public bool TryRead(Reader reader, SerializationContext context, out Win32Api.RECT rect)
{
var obj = Read(reader, null, context);
if (obj == null)
{
rect = new Win32Api.RECT();
return(false);
}
rect = (Win32Api.RECT)obj;
return(true);
}