Gets the position at which the presentation space maps to the window.
#define INCL_VIO
#include <os2.h>
PULONG Remfonts; /* Number of fonts not returned. */
PFONTMETRICS Metrics; /* Font metrics. */
ULONG Metlen; /* Maximum length of data. */
PULONG Fonts; /* Number of fonts. */
PSZ Facename; /* Face name of fonts. */
ULONG Options; /* Controls which fonts are selected. */
HVIO hvps; /* VIO presentation-space handle. */
APIRET rc; /* Return code. */
rc = VioQueryFonts(Remfonts, Metrics, Metlen,
Fonts, Facename, Options, hvps);