h6. [[GraphicsV]] h6(. » GraphicsV 22 h2. Graphics Vector (42) |_<^{width:3em}. Entry |<^. | |/4<^. R0|<^. Pointer to coordinate array, where each entry is the following 3-word structure: | |<^. Word 0: Head number | |<^. Word 1: X position | |<^. Word 2: Y position | |<^. R1|<^. Number of entries in coordinate array| |<^. R2|<^. Bank to display (ignored if R1=0) | |/3<^. R4|<^. Bits 0-15: 22 (reason code)| |<^. Bits 16-23: Overlay number| |<^. Bits 24-31: Driver number| |_<^{width:3em}. Exit |<^. | |<^. R4|<^. 0 | |- |<^. All other registers preserved | h4. Use Displays or hides an overlay. The coordinate space is that of logical screen coordinates, i.e. (0,0) is the top-left corner of the screen from the viewer's perspective (if the screen is rotated, (0,0) is still the top-left). Within that coordinate space, the coordinates specify the top-left corner of the overlay, as it appears on screen (e.g. if the overlay is rotated 180 degrees then it would actually correspond to the bottom-right pixel of the buffer). The overlay will only appear on the heads which are included in the list. Therefore, you can hide the overlay completely by specifying R1=0. h4. See also * [[GraphicsV]]