subcalls.hlp (Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
VioShowPS (1.2)
Function Group  Overview                          Up Next Previous
────────────────────────────────────────────────────────────────────────────
 
#define INCL_AVIO
 
USHORT VioShowPS(cRows, cColumns, off, hvps);
SHORT cRows;       /* height of rectangle            */
SHORT cColumns;    /* width of rectangle             */
SHORT off;         /* upper-left corner of rectangle */
HVPS hvps;         /* presentation-space handle      */
 
The VioShowPS function updates the display by copying all the latest changes
in the specified rectangle to the display.
 
Parameter  Description
────────────────────────────────────────────────────────────────────────────
 
cRows      Specifies the height (in character cells) of the rectangle to
           update.
 
cColumns   Specifies the width (in character cells) of the rectangle to
           update.
 
off        Specifies the position of the upper-left corner of the rectangle
           to update. The position is relative to the first character cell
           in the advanced video-input-and-output (AVIO) presentation
           space.
 
hvps       Identifies the AVIO presentation space. This handle must have
           been created previously by using the VioCreatePS function.
 
Return Value
 
The return value is zero if the function is successful. Otherwise, it is an
error value.
 
See Also
 
VioCreatePS