231 lines
5.0 KiB
Plaintext
231 lines
5.0 KiB
Plaintext
Protocol requests
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These functions make protocol requests corresponding to their names.
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Connection Setup
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FSServer *
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FSOpenServer(
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char *server);
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Creates a connection to the font server specified in the 'server' string.
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int
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FSCloseServer(
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FSServer *svr);
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Closes the connection to the font server.
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Font Manipulation
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Font
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FSOpenBitmapFont(
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FSServer *svr,
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fsBitmapFormat hint,
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fsBitmapFormatMask fmask,
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char *name,
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Font *originalid);
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Opens the font that matches the given name (which may have '*' and '?'
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as wildcards). The hint contains format information that will probably
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be used in subsequent QueryXBitmaps() requests. The fmask tells which
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bits in the mask are valid. If originalid is non-zero, then the server
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already has the font opened under that ID.
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int
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FSCloseFont(
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FSServer *svr,
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Font fid);
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Closes the font.
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char **
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FSListFonts(
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FSServer *svr,
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char *pattern,
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int maxNames,
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int *actualCount);
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Returns the full names of the fonts matching pattern. Up to maxNames
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names will be returned. The actual value number be placed in
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actualCount. The return value should be freed with FSFreeFontNames.
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int
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FSFreeFontNames(
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char **list);
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Frees the list of font names returned by FSListFonts.
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char **
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FSListFontsWithXInfo(
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FSServer *svr,
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char *pattern,
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int maxNames,
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int *actualCount,
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fsFontHeader ***info,
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fsPropInfo ***pprops,
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fsPropOffset ***offsets,
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unsigned char ***prop_data);
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Returns the full names of the fonts matching pattern. Up to maxNames
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names will be returned. The actual value number be placed in
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actualCount, and each font's header and property information will also
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be returned.
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int
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FSQueryXInfo(
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FSServer *svr,
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Font fid,
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fsFontHeader *info,
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fsPropInfo *props,
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fsPropOffset **offsets,
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unsigned char **prop_data);
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Returns the font's header information.
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int
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FSQueryXExtents8(
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FSServer *svr,
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Font fid,
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Bool range_type,
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unsigned char *str,
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unsigned long str_len,
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fsCharInfo **extents);
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int
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FSQueryXExtents16(
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FSServer *svr,
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Font fid,
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Bool range_type,
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fsChar2b *str,
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unsigned long str_len,
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fsCharInfo **extents);
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Returns the extents of the given characters. If 'range_type' is set,
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the 'str' is considered a range, otherwise its considered a list of
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characters. A NULL str when range_type is set means that all the
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character extents will be returned.
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int
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FSQueryXBitmaps8(
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FSServer *svr,
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Font fid,
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fsBitmapFormat format,
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Bool range_type,
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unsigned char *str,
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unsined long str_len,
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unsigned long **offsets,
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unsigned char **glyph_data);
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int
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FSQueryXBitmaps16(
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FSServer *svr,
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Font fid,
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fsBitmapFormat format,
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Bool range_type,
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fsChar2b *str,
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unsined long str_len,
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unsigned long **offsets,
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unsigned char **glyph_data);
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Returns the font's bitmaps in the requested format. The other arguments
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are used as in QueryExtents above.
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Extensions
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char **
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FSListExtensions(
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FSServer *svr,
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int *next);
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Lists any extension built into the font server.
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Bool
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FSQueryExtension(
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FSServer *svr,
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char *name,
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int *major_opcode,
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int *first_event,
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int *first_error);
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Returns information on the specified extension.
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int
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FSFreeExtensionList(
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char **list);
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Frees the list returned by FSListExtensions().
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Helper functions -- these don't map to protocol requests, but
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can make writing a FS client simpler.
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Synchronization
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FSSync(
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FSServer *svr,
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Bool discard);
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Flushes the output queue and waits for a reply from the server,
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which will flush the server's output queue.
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typedef int (*FSSyncHandler)(FSServer *);
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FSSyncHandler
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FSSynchronize(
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FSServer *svr,
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int onoff)
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Controls whether the server does every request in synchronous form.
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FSSyncHandler
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FSSetAfterFunction(
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FSServer *svr,
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FSSyncHandler func);
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Sets the function that will be called after every request. This
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is usually NULL or FSSync().
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int
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FSFlush(
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FSServer *svr);
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Flushes any queued requests to the font server.
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Error Handling
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typedef int (* FSErrorHandler)(FSServer *, FSErrorEvent *);
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FSErrorHandler
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FSSetErrorHandler(
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FSErrorHandler handler);
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Changes the error handler to 'handler'. A NULL value will reset
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it to use the default.
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typedef int (* FSIOErrorHandler)(FSServer *);
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FSIOErrorHandler
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FSSetIOErrorHandler(
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FSIOErrorHandler handler);
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Changes the I/O error handler to 'handler'. A NULL value will reset
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it to use the default.
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Miscellaneous
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long
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FSMaxRequestSize(
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FSServer *svr);
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Returns the largest request size (in 4 byte quantities) that the
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server can handle.
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char *
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FSServerName(
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char *server);
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Returns the name that FSlib would use to connect to the server.
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Translates a NULL in the value of $FONT_SERVER.
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