Mildred a shark
Professional

The row-interlacing feature of the c2p system keeps track of wether to draw the even or odd rows. When you switch on row lacing by using Mc2pRowLacing On, the system is reset to start with even rows. You can perform a toggle from even to odd rows and vice versa by using Mc2pRowToggle. If even rows are currently being converted then Mc2pRowToggle will set up the system to convert the odd rows, and vice versa.

Mc2pRowToggle is suitable for use in a single-buffered display but will not produce the required results in a double-buffered or triple-buffered display, for which you should use the appropriate routine, such as Mc2pToggle, Mc2pToggleDouble for double-buffered displays or Mc2pToggleTriple for triple-buffered displays.

Possible syntax:
Mc2pRowToggle

a shark