CellStr (ULONG) - input
Address of the string of character-attribute cells to be written.
Length (ULONG) - input
Length, in bytes, of the string to be written. Each character-attribute cell is 2 or 4 bytes.
Row (ULONG) - input
Column (ULONG) - input
VioHandle (HVIO) - input
This must be 0, unless the caller is a Presentation Manager application; in this case, it must be the value returned by VioCreatePS.
rc (APIRET) - returns