PfGlyph(), PfGlyphCx()

Obtain the metrics and/or bitmap for the specified character

Synopsis:

#include <photon/Pf.h>

int PfGlyph( const char *font,
             long symbol,
             FontRender *metrics,
             unsigned char *bitmap,
             int size,
             FontName fontused);

#include <font_api.h>
int PfGlyphCx( struct _Pf_ctrl *context,
               const char *font,
               long symbol,
               FontRender *metrics,
               unsigned char *bitmap,
               int size,
               FontName fontused);

Arguments:

context: (PfGlyphCx() only) A pointer to the font context to use, returned by PfAttachCx() or PfAttachDllCx().
font: The base font to use, which you should create by calling PfGenerateFontName() or PfGenerateFontNameCx().
symbol: The character that you're interested in.
metrics: NULL, or a pointer to a FontRender structure, which the function fills in with the character metrics (see PfRender()).
bitmap: NULL, or a pointer to a block of memory where the function can store the character bitmap.
size: The number of bytes in the block that bitmap points to.
fontused: NULL, or a buffer where the function can store the name of the font that supplies the character.

Library:

PfGlyph(): ph
PfGlyphCx(): font

Description:

These routines are useful for obtaining arbitrary character glyphs, such as cursors. The functions obtain from the base font the metrics and/or bitmap for the character specified by symbol.

When bitmap is non-NULL, it must point to an area of size bytes that the character bitmap can be placed in. It may be rendered as a bitmap/image in conjunction with the metrics information. The actual font used to supply the character is placed in the string pointed to by fontused if non-NULL.

Returns:

0: Success.
-1: An error occurred (errno is set).

Examples:

PfGlyphCx(): See the example for PfGetGlyphIndexCx().

Classification:

Photon

PfGlyph()

Safety:
Interrupt handler	No
Signal handler	No
Thread	No

PfGlyphCx()

Safety:
Interrupt handler	No
Signal handler	No
Thread	Yes