Device related functions
The relevant functions are as follows.
| Function or data type | Description |
|---|---|
| cleardevice | Clear the drawing device. |
| initgraph | Initializes the graphics window. |
| closegraph | Closes the graphics window. |
| getaspectratio | Get current scaling factor. |
| setaspectratio | Set current scaling factor. |
| graphdefaults | Restores the drawing environment as the default value. |
| setorigin | Set the coordinate origin point. |
| setcliprgn | Set the cropping area of current drawing device. |
| clearcliprgn | Clear the cropping area. |