dtk_load_font(3) [debian man page]

DTK_LOAD_FONT(3)						Draw Toolkit manual						  DTK_LOAD_FONT(3)

NAME

       dtk_load_font - Load an font

SYNOPSIS

       #include <drawtk.h>

       dtk_hfont dtk_load_font(const char *fontname);
       void dtk_destroy_font(dtk_hfont font);

DESCRIPTION

       dtk_load_font()	loads  the font specified by fontname argument. This should be the path of a file whose file format can be any of the file
       format supported by the freetype library (TrueType and Type 1 among many others) or a font description  pattern	understood  by	fontconfig
       (like  "Times new roman:bold"). dtk_load_font() will first interpret fontname as a font filename and then, if this fail interpret as a font
       pattern and load the closest font available on the system.

       Upon creation, the font data is then tracked by an internal resource manager so that the next call using the same  fontname  argument  will
       return the same font handle, thus sparing the resources of the system.

       There  is  no need for a valid window to create successfully a font, i.e.  font loading is completely decoupled from the creation of others
       resources and can even be created in one thread to be used in another one.

       dtk_destroy_font() frees the resource referenced by font. If the font is used several times, i.e. several call to dtk_load_font() with  the
       same file path, it decreases the number of uses by one.

       Calling	dtk_destroy_texture()  on  each created font is currently not mandatory since all font remaining fonts are destroyed when the last
       window is closed. However, if no window can be closed (for example, no window has been created), dtk_destroy_font()  should  be	called	on
       each created font to avoid any memory leak.

RETURN VALUE

       In case of success, the dtk_load_font() returns the handle to the loaded font. In case of failure, NULL is returned.

       dtk_destroy_texture() does not return any value.

THREAD SAFETY

       dtk_load_font() and dtk_destroy_texture() are thread-safe.

SEE ALSO

       dtk_create_string(3) fc-list(1) FcPatternFormat(3)

EPFL
								       2010							  DTK_LOAD_FONT(3)

XmFontListEntryLoad(library call)										 XmFontListEntryLoad(library call)

NAME

       XmFontListEntryLoad -- A font list function that loads a font or creates a font set and creates an accompanying font list entry

SYNOPSIS

       #include <Xm/Xm.h>
       XmFontListEntry XmFontListEntryLoad(
       Display *display,
       char *font_name,
       XmFontType type,
       char *tag);

DESCRIPTION

       XmFontListEntryLoad  loads  a  font or creates a font set based on the value of the type argument. It creates and returns a font list entry
       that contains the font or font set and the specified tag.

       If the value of type is XmFONT_IS_FONT, the function uses the XtCvtStringToFontStruct routine to convert the value of font_name to  a  font
       struct.	 If  the value of type is XmFONT_IS_FONTSET, the function uses the XtCvtStringToFontSet converter to create a font set in the cur-
       rent locale.  XmFontListEntryLoad creates a font list entry that contains the font or font set derived from the converter.  For more infor-
       mation about XtCvtStringToFontStruct and XtCvtStringToFontSet, see X Toolkit Intrinsics--C Language Interface.

       display	 Specifies the display where the font list will be used.

       font_name Specifies an X Logical Font Description (XLFD) string, which is interpreted either as a font name or as a base font name list.  A
		 base font name list is a comma-separated and NULL-terminated string.

       type	 Specifies whether the font_name argument refers to a font name or to a base font name list.  Valid values are XmFONT_IS_FONT  and
		 XmFONT_IS_FONTSET.

       tag	 Specifies  the  tag  of  the font list entry to be created.  The tag may be specified as XmFONTLIST_DEFAULT_TAG, which is used to
		 identify the default font list element in a font list when specified as part of a resource.

RETURN

       If the specified font is not found, or if the specified font set cannot be created, then either	an  implementation-defined  font  will	be
       opened or a font set will be created, and a warning messge will be generated. If no suitable font can be found or a font set cannot be cre-
       ated, then another message will be generated and the function will return NULL; otherwise the function returns a font list entry.   If  the
       function  returns  a font list entry, the function allocates space to hold the font list entry. The application is responsible for managing
       the allocated space. The application can recover the allocated space by calling XmFontListEntryFree.

RELATED

       XmFontList(3), XmFontListAppendEntry(3), XmFontListEntryCreate(3), XmFontListEntryFree(3),  XmFontListEntryGetFont(3),  XmFontListEntryGet-
       Tag(3), and XmFontListRemoveEntry(3).

														 XmFontListEntryLoad(library call)