Version 18 has not changed from Version 18.0. For more information, refer to http://www.leadtools.com/corporate/new-in-v18.htm.
Version 17.5 has changed from Version 17 as follows:
| Parameter | Description | 
|---|---|
IntPtr hdc | 
            The Windows HDC | 
LPRECT lprc | 
            The rectangle coordinates to fill. | 
COLORREF color | 
            The color to use. You must create a solid brush for this color. | 
For more information, refer to http://www.leadtools.com/corporate/new-in-v175.htm.
The following assembly has been added to LEADTOOLS For .NET v17:
| Namespace | Description | 
|---|---|
| Leadtools.Drawing | Includes helper classes to convert a LEADTOOLS images, regions and colors to and from Windows Presentation Foundation and Silverlight. |