Categorized functions: Screen management
General drawing screen management functions.
| Name | Description | 
|---|---|
| ClearViewPort | Clear the current viewport | 
| GetImage | Copy image from screen to memory | 
| GetMaxX | Get maximum X coordinate | 
| GetMaxY | Get maximum Y coordinate | 
| GetX | Get current X position | 
| GetY | Get current Y position | 
| ImageSize | Get size of selected image | 
| GetViewSettings | Get current viewport settings | 
| PutImage | Copy image from memory to screen | 
| SetActivePage | Set active video page | 
| SetAspectRatio | Set aspect ratio for drawing routines | 
| SetViewPort | Set current viewport | 
| SetVisualPage | Set visual page | 
| SetWriteMode | Set write mode for screen operations |