[PyOpenGL-Devel] Togl workaround instructions for those wanting to use it with Python 2.3

[Mike C. F. <mcf...@ro...>]

Well, following a tip from Jesse Hager I've been playing a bit more with 
Togl.  This email is intended for those who have older PyOpenGL code 
that relies on Togl and thus need Togl support but would like to upgrade 
to PyOpenGL 2.0.1 and Python 2.3.

If you need a Togl widget, it's possible to build one and install it 
manually.  The Tcl pkg_mkIndex command used by the automatic installer 
(i.e. setup.py) still fails, so there's something broken still, but the 
work-around does allow you to run Togl-based code under Python 2.3.  
Here's the instructions:

    * Unpack tk8.4.5-src.tar.gz
      <http://prdownloads.sourceforge.net/tcl/tk8.4.5-src.tar.gz?download>
      and tcl8.4.5-src.tar.gz
      <http://prdownloads.sourceforge.net/tcl/tcl8.4.5-src.tar.gz?download>
      from the Tcl sf.net project
      (https://sourceforge.net/project/showfiles.php?group_id=10894)
    * Edit src/Togl-1.6/makefile.vc to point to the appropriate
      directories in the Tcl Installation section. e.g.
          o TKDIR       = c:\bin\lang\tk8.4.5
            TCLDIR        = C:\bin\lang\tcl8.4.5
            TCLVER        = 84
            TCLFLAGS    = -DUSE_TCL_STUBS -DUSE_TK_STUBS
            TCLLIBS        = tclstub$(TCLVER).lib tkstub$(TCLVER).lib
            TCLINCDIR    = -I$(TCLDIR)\include -I. -I$(TKDIR)\generic
            -I$(TCLDIR)\win -I$(TCLDIR)\generic -I$(TKDIR)\xlib
            TCLLIBDIR    = -libpath:C:\bin\lang\py23\tcl
            TCLSH        = $(TCLDIR)\bin\tclsh$(TCLVER).exe
            WISH        = $(TCLDIR)\bin\wish$(TCLVER).exe
    * Run nmake /f makefile.vc in the Togl-1.6 directory
    * Create directory under py23/tcl/Togl (i.e. in your Python 2.3
      installation directory)
    * Copy the Togl.dll from the Togl-1.6 source directory to py23/tcl/Togl
    * Create a file in the py23/tcl/Togl directory named pkgIndex.tcl
      with these contents:
          o if {![package vsatisfies [package provide Tcl] 8]} {return}
            package ifneeded Togl 1.6.0 \
                  [list load [file join $dir togl.dll] Togl]

It's that last step which is causing the failure in the current 
code-base, as the current code does:
    tk.tk.call('pkg_mkIndex','-verbose',togl_dir, togl)
to try to have the Python Tk/Tcl system build the pkgIndex file 
automatically and fails as the built-in Tk doesn't provide a needed 
interface.

Enjoy all,
Mike

_______________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://members.rogers.com/mcfletch/