TIP #205: USE PKGCONFIG DATABASE TO REGISTER XFT SUPPORT 
==========================================================
 Version:      $Revision: 1.5 $
 Author:       Joe English <jenglish_at_users.sourceforge.net>
 State:        Final
 Type:         Project
 Tcl-Version:  8.5
 Vote:         Done
 Created:      Wednesday, 23 June 2004
 URL:          https://tip.tcl-lang.org205.html
 Post-History: 

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 ABSTRACT 
==========

 This TIP proposes to use Tcl's package configuration database (see [TIP 
 #59]) to register whether Tk was compiled with support for Xft. 

 RATIONALE 
===========

 As of version 8.5, Tk has optional support for Xft (the modern 
 replacement for server-side fonts in X11). However, at present 
 application code has no way to determine whether or not Xft support was 
 enabled when Tk was built. The package configuration database facility 
 introduced in [TIP #59] seems like an ideal place to record this 
 information. 

 PROPOSAL 
==========

 If Tk was configured with /--enable-xft/, the command 

    tk::pkgconfig get fontsystem

 shall return the value *xft*. 

 NOTES 
=======

 The change as currently proposed is the minimum necessary to satisfy 
 the requirement listed in the Rationale. In particular: nothing else in 
 Tk currently calls /Tcl_RegisterConfig()/, so if Xft support is not 
 enabled the *tk::pkgconfig* command will remain undefined. 

 This TIP (or something like it) is a prerequisite for a script-level 
 implementation of [TIP #145], which will need to distinguish whether or 
 not Xft is in use. 

 IMPLEMENTATION 
================

 See Tk Patch 
 #976520[<URL:http://sourceforge.net/support/tracker.php?aid=976520>] 

 COPYRIGHT 
===========

 This document has been placed in the public domain. 

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