Interactive devices can be used to deliver numeric parameters to the controlling program via a graphics cursor.
2.
The first four following the GS position the graphic cursor, every point after that draws a vector on the display.
3.
The software application will then interpret the relative position and movement of the mouse and display the graphic cursor on the screen appropriately.
4.
It could also be used to move the graphics cursor to a new location without having to exit and re-enter graphics mode, previously the only way to accomplish this.
5.
VDU 25 uses the succeeding five bytes to move the graphics cursor and plot solid and dashed lines, dots and filled triangles, the documented extent of graphics in MOS 0 and 1.
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