Scrolls the entire display buffer (or area specified within the display buffer) to the left.
#define INCL_VIO #include <os2.h> ULONG TopRow; /* Top row to be scrolled. */ ULONG LeftCol; /* Left column to be scrolled. */ ULONG BotRow; /* Bottom row to be scrolled. */ ULONG RightCol; /* Right column to be scrolled. */ ULONG Lines; /* Number of lines. */ PBYTE Cell; /* Cell to be written. */ HVIO VioHandle; /* VIO presentation-space handle. */ APIRET rc; /* Return code. */ rc = VioScrollLeft(TopRow, LeftCol, BotRow, RightCol, Lines, Cell, VioHandle);