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Replaced remaining _WIN32 symbols with WIN32

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Stuff from work:

Removed reference to unused GL/glu.h header file, which is missing on
some Linux systems.

Fl_Gl_Window has a new method to allow you to get and set the context:

  void Fl_Gl_Window::context(void*, int destroy = 0)
  void* Fl_Gl_Window::context() const;

  Return or set a pointer to the GLContext that this window is
  using. This is a system-dependent structure, but it is portable to
  copy the context from one window to another. You can also set it to
  NULL, which will force FLTK to recreate the context the next time
  make_current() is called, this is useful for getting around bugs in
  OpenGL implementations.

  If destroy_flag is true the context will be destroyed by fltk when
  the window is destroyed, or when the mode() is changed, or the next
  time context(x) is called.

Some cleanup of Fl_Gl_Choice to move most of the system dependent
#ifdefs into Fl_Gl_Choice.cxx.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.0@1413 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Bill Spitzak
2001-03-14 17:20:02 +00:00
parent 8470c05b58
commit 97234fb3e2
13 changed files with 302 additions and 261 deletions
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documentation/Fl_Gl_Window.html
+17
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@@ -41,6 +41,7 @@ very well for single-buffered. </P>
</UL>
</TD><TD align=left valign=top>
<UL>
<LI><A href=#Fl_Gl_Window.context>context</A></LI>
<LI><A href=#Fl_Gl_Window.draw>draw</A></LI>
<LI><A href=#Fl_Gl_Window.draw_overlay>draw_overlay</A></LI>
<LI><A href=#Fl_Gl_Window.handle>handle</A></LI>
@@ -120,6 +121,22 @@ window a child of another window if you wish to do this! </P>
<BR> int Fl_Gl_Window::can_do() const</A></H4>
Returns non-zero if the hardware supports the given or current OpenGL
mode.
<h4><a name=Fl_Gl_Window.context>void* Fl_Gl_Window::context() const;
<br>void Fl_Gl_Window::context(void*, int destroy_flag = false);</a></h4>
Return or set a pointer to the GLContext that this window is
using. This is a system-dependent structure, but it is portable to copy
the context from one window to another. You can also set it to NULL,
which will force FLTK to recreate the context the next time <a
href=#make_current><tt>make_current()</tt></a> is called, this is
useful for getting around bugs in OpenGL implementations.
<p>If <i>destroy_flag</i> is true the context will be destroyed by
fltk when the window is destroyed, or when the <a
href=#mode><tt>mode()</tt></a> is changed, or the next time
<tt>context(x)</tt> is called.
<H4><A name=Fl_Gl_Window.valid>char Fl_Gl_Window::valid() const
<BR> void Fl_Gl_Window::valid(char i)</A></H4>
<TT>Fl_Gl_Window::valid()</TT> is turned off when FLTK creates a new