| Function | Description |
|---|---|
| GrOpen() | Open a connection to the nano-X server |
| GrClose() | Close the connection to the nano-X server |
| GrFlush() | Flushes the client/server message buffer |
| GrMainLoop() | Generic application event dispatch loop |
| GrGetScreenInfo() | Return screen information |
| GrSetErrorHandler() | Setup an error handler |
| GrDefaultErrorHandler() | The default error handler |