GDI+

If GDI+ is available, the tree control supports additional features not otherwise available:

• Image support for PNG, TIFF, JPEG, GIF, Exif, EMF+, EMF (GDI+ images) with full support for alpha-blended (translucent and semi-transparent) images
• Rounded outline rectangle with gradient fill for selected items, highlighted items (flyby highlighting) or drop target items
• Transition effects for expand/collapse buttons and tree lines are used when the mouse enters/leaves the tree control

GDI+ is available on all supported Windows versions (Windows 10 and above).

An application can test whether GDI+ is available using the GetGDIPlusAvailable function.