gpi12.hlp (Table of Contents; Topic list)
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GpiQueryKerningPairs (1.2)
Function Group  Overview                          Up Next Previous
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#define INCL_GPILCIDS
 
LONG GpiQueryKerningPairs(hps, ckrnpr, akrnpr)
HPS hps;                 /* presentation-space handle                   */
LONG ckrnpr;             /* number of kerning pairs                     */
PKERNINGPAIRS akrnpr;    /* address of array of kerning-pair structures */
 
The GpiQueryKerningPairs function retrieves kerning-pair information for the
current font for the presentation space. The kerning-pair information
specifies the characters to be kerned and the amount of space in world
coordinates to kern. The number of kerned pairs for a given font is
specified in the font metrics for that font.
 
Parameter  Description
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hps        Identifies the presentation space.
 
ckrnpr     Specifies the number of kerning pairs to retrieve.
 
akrnpr     Points to the array of KERNINGPAIRS structures that receives the
           kerning-pair information. The array must have the number of
           elements specified by the ckrnpr parameter.
 
Return Value
 
The return value is GPI_OK if the function is successful or GPI_ERROR if an
error occurred.
 
Errors
 
Use the WinGetLastError function to retrieve the error value, which may be
one of the following:
 
     PMERR_INV_HPS
     PMERR_INV_LENGTH_OR_COUNT
     PMERR_PS_BUSY
 
Example
 
This example uses the GpiQueryKerningPairs function to retrieve the kerning
information for the current font.
 
FONTMETRICS fm;
SEL sel;
PKERNINGPAIRS akrnpr;
 
GpiQueryFontMetrics(hps, (LONG) sizeof(FONTMETRICS), &fm);
DosAllocSeg(fm.sKerningPairs * sizeof(KERNINGPAIRS), &sel,
    SEG_NONSHARED);
akrnpr = MAKEP(sel, 0);
GpiQueryKerningPairs(hps, (LONG) fm.sKerningPairs, akrnpr);
 
See Also
 
GpiQueryFontMetrics, KERNINGPAIRS