FONTOBJ_pQueryGlyphAttrs function (winddi.h)
The FONTOBJ_pQueryGlyphAttrs function returns information about a font's glyphs.
PFD_GLYPHATTR FONTOBJ_pQueryGlyphAttrs( FONTOBJ *pfo, ULONG iMode );
Is a caller-supplied pointer to a FONTOBJ structure identifying the font for which attributes are being requested.
Is a caller-supplied flag indicating the type of glyph attribute being requested. The following flag is defined:
|FO_ATTR_MODE_ROTATE||The function returns an array indicating which glyphs of a vertical font must be rotated.|
FONTOBJ_pQueryGlyphAttrs returns a pointer to an FD_GLYPHATTR structure. If an error is encountered, such as an invalid input argument, or if the font described by the FONTOBJ structure is not a vertical font, the function returns NULL.
Currently, the only attribute flag defined is FO_ATTR_MODE_ROTATE. This flag is meant for use by printer drivers that support printers with built-in font rasterizers. The driver can call the FONTOBJ_pQueryGlyphAttrs function, specifying the FO_ATTR_MODE_ROTATE flag, to determine which glyphs within a vertical font must be rotated.
Vertical fonts have a font name that starts with the "@" character. To determine if the current font is a vertical font, the driver can check for the FO_VERT_FACE flag in the flFontType member of the font's FONTOBJ structure.
Rotation information is returned in the FD_GLYPHATTR structure that is used as the function's return value.
The FONTOBJ_pQueryGlyphAttrs function is supplied by GDI. When a printer driver calls FONTOBJ_pQueryGlyphAttrs, GDI calls the appropriate font driver's DrvQueryGlyphAttrs function to obtain the requested information.
|Minimum supported client||Available in Windows 2000 and later versions of the Windows operating systems.|
|Header||winddi.h (include Winddi.h)|