readme-win32.txt

glut库的五个相关文件,替代进windows就可以用glut库了

       this to my attention and debugging fixes.

    (Nov 8, '00)
    x  Fixed submenu problem (sometimes the menu callback was not 
       called for valid items).  Thanks to Michael Keeley.

    (Oct 16, '00)
    x  Corrected corrupt duck.iv file.  Thanks to Jon Willeke for finding 
       this problem.

    (Sept 27, '00)
    x  Fixed bug in processWorkList that could cause a hang.  Thanks to
       Bill Volz & Daniel Azuma.

    (Sept 26, '00)
    x  Added mui DLL project file (thanks to [e-mail]).

    (Sept  9, '00)
    x  Fixed Delete key bug (crash when no keyboard callback was
       registered, but a special key callback was).  Thanks to
       Kent Bowling ([e-mail]) for finding this bug.

    (May 18, '00)
    x  Fixed subwindow keyboard callbacks.

    (May 22, '97)
    o  Menus don't work under Windows 95
    x  Fixed!  Added a unique identifier to each menu item, and a 
       search function to grab a menu item given the unique identifier.

    (May 21, '97)
    o  A few minor bug fixes here and there.
    x  Thanks to Bruce Silberman and Chris Vale for their help with
       this.  We now have a DLL!

    (Apr 25, '97)
    o  DLL version of the library is coming (as soon as I figure out
       how to do it -- if you know, let me know).
    x  Thanks to Bruce Silberman and Chris Vale for their help with
       this.  We now have a DLL!

    (Apr 24, '97)
    x  Added returns to KEY_DOWN etc messages so that the F10 key
       doesn't toggle the system menu anymore.

    (Apr 7, '97)
    o  Palette is incorrect for modes other than TrueColor.
    x  Fixed this by forcing a default palette in modes that aren't
       Truecolor in order to 'simulate' it.  The applications
       program shouldn't have to do this IMHO, but I guess we
       can't argue with Microsoft (well, we can, but what good
       will it do?).

    (Apr 2, '97)
    x  Added glut.ide file for Borland users.

    (Apr 2, '97)
    x  Fixed a bug in the WM_QUERYNEWPALETTE message.  Wasn't
       checking for a null colormap, then de-ref'd it.  Oops.

    (Mar 13, '97)
    o  glutTimerFunc: 
       Currently, GLUT for Win32 programs busy waits when there is
       an outstanding timer event (i.e., there is no select()
       call).  I haven't found this to be a problem, but I plan to
       fix it just because I can't bear the thought of a busy wait.
    x  Added a timer event and a wait in the main loop.  This fixes
       the CPU spike.

    (Mar 11, '97)
    x  Fixed subwindow visibility.  The visibility callback of
       subwindows wasn't being called, now it is.

    (Mar 11, '97)
    o  glutGetHDC, glutGetHWND:
       In order to support additional dialog boxes, wgl fonts, and
       a host of other Win32 dependent structures, two functions
       have been added that operate on the current window in GLUT.
       The first (glutGetHDC) returns a handle to the current
       windows device context.  The second (glutGetHWND) returns
       handle to the current window.
    x  Took these out to preserve GLUT portability.

    (Mar 11, '97)
    x  Fixed the glutWarpPointer() coordinates.  Were relative to
       the screen, now relative to window (client area) origin
       (which is what they're supposed to be).

    (Mar 11, '97)
    o  glutCreateMenu, glutIdleFunc:
       Menu's are modal in Win32.  That is, they don't allow any
       messages to be processed while they are up.  Therefore, if
       an idle function exists, it will not be called while
       processing a menu.
    x  Fixed!  I've put in a timer function that fires every
       millisecond while a menu is up.  The timer function handles
       idle and timer events only (which should be the only
       functions that are firing when a menu is up anyway).

    (Mar 7 '97)
    x  Fixed minor bugs tracked down by the example programs.

    (Mar 6, '97)
    x  Merged 3.3 GLUT for X11 into 3.2 GLUT for Win32.  New code
       structure allows for EASY merging!

    o  In Win32, the parent gets the right to set the cursor of
       any of its children.  Therefore, a child windows cursor
       will 'blink' between its cursor and its parent.
    x  Fixed this by checking whether the cursor is in a child
       window or not.

    (Feb 28 '97)
    o  On initial bringup apps are getting 2 display callbacks.
    x  Fixed by the Fev 28 re-write.

    o  Some multiple window (not subwindow) functionality is messed up.
       See the sphere.exe program.
    x  Fixed by the Feb 28 re-write.

    o  GLUT for Win32 supports color index mode ONLY in a paletted
       display mode (i.e., 256 or 16 color mode).
    x  Fixed this in the re-write.  If you can get a color index
       visual (pixel format) you can use color index mode.

    (Feb 28 '97)
    o  Quite a few bugs (and incompatibilities) were being caused
       by the structure that I used in the previous port of GLUT.
       Therefore I decided that it would be best to "get back to
       the roots".  I re-implemented most of glut trying to stick
       with the structure layed out by Mark.  The result is a much
       more stable version that passes ALL (!) (except overlay)
       the tests provided by Mark.  In addition, this new
       structure will allow future enhancements by Mark to be
       integrated much more quickly into the Win32 version.  Also,
       I'm now ordering the bugs in reverse, so that the most
       recently fixed appear at the top of the list.

    (9/8/96)
    o  Changed the glutGetModifiers code to produce an error if not
       called in the core input callbacks.

    (9/11/96)
    o  If the alt key is pressed with more than one other modifier key
       it acts as if it is stuck -- it stays selected until pressed
       and released again.
    x  Fixed. 

    (9/12/96)
    o  When a submenu is attached to a menu, sometimes a GPF occurs.
       Fixed.  Needed to set the submenu before referencing it's members.

    o  Kenny: Also, one little problem, I attached the menu to the 
       right-button, but when the left-button is pressed I detach
       it to give the right-button new meaning; if I pop-up the menu and I
       don't want to select anything, like most users, I click off of the
       menu to make it disappear. When I do this, I get a GLUT error and 
       the program terminates because I am altering the menu attachment 
       from within the button press while the menu is active. 
    x  Fixed.  Needed to finish the menu when the user presses the button,
       not just when a button is released.

    o GLUT for Win32 emulates a middle mouse button by checking if
       both mouse buttons are down.  This causes a lot of problems with 
       the menu and other multiple mouse button things.  
    x  Fixed.  No more middle mouse button emulation.  Perhaps it would
       be a good idea to emulate the middle mouse button (if not present)
       with a key?

    (9/15/96)
    o  Added code to accept a user defined icon.  If no icon is provided,
       a default icon is loaded.

    (9/19/96)
    o  Shane: Command line options seem to be screwed up. (9/13)
    x  Fixed.  The geometry command line was broken, and so was the
       gldebug command line.

    o  Fixed a bug in the default glut reshape.  It was looking for the
       parent of the current window and GPF'ing if there wasn't a parent.
       Put in a check for a parent, and if none is there, use the
       child.

    o  Idle function sucks up all processor cycles. (9/8/96)
    x  I don't know if this is avoidable.  If you have a tight rendering
       loop, it may be that the processor time is going to be sucked up
       no matter what.  You can add a sleep() to the end of your render
       loop if you would like to yeild to other processes and you don't
       care too much about the speed of your rendering loop.  If you have
       Hardware that supports OpenGL (like a 3Dpro card, or GLint card) 
       then this should be less of a problem, since it won't be rendering
       in software. (9/11/96)

    o  If a window is fully obscured by another window, the visibility
       callback is NOT called.  As far as I can tell, this is a limitation
       of the Win32 api, but a workaround is being searched for. (9/8/96)
    x  Limitation of the Win32 API

    o  Fixed the entry functions.  They only work if the keyboard focus
       changes.  Therefore, in most Win32 systems, the mouse must be
       pressed outside of the window to get a GLUT_LEFT message and
       then pressed inside the window for a GLUT_ENTERED message.

    o  Alt modifier key doesn't work with keyboard callback. (9/8/96)
    x  Probably okay, because the glut spec says that these keys can
       be intercepted by the system (which the alt key is...) (9/11/96)

    (11/17/96)
    o  glutRemoveMenuItem() not working properly.
    x  Thanks to Gary ([e-mail]) for the fix to
       this one.

    o  Timer functions are messed up.
    x  Thanks to Joseph Galbraith for the fix to this one.

    (12/9/96)
    o  One (minor) difference came up between the X version of glut
       and the nt one which you should know about. It is not a new
       problem, and it concerns co-ords returned to the pointer
       callbacks. (glutMotionFunc, glutMouseFunc)
       Under X, you get co-ords in the range 0 +/- 2^15, under NT
       you get 0..2^16. This is only really a problem when moving
       above or to the left of the window.
       eg dragging one pixel ABOVE the window will give :-
       under x11 :      y = -1
       under nt  :      y = 2^16 -1
    x  Put in fix provided by Shane Clauson.

    (12/17/96)
    o  Idle functions not working properly for multiple windows.
    x  Fixed this by posting an idle message to every window in the 
       window list when idle.

    (12/18/96)
    o  glutSetCursor() was misbehaving ([e-mail]).
    x  Win32 requires that the hCursor member of the window class
       be set to NULL when the class is registered or whenever the
       mouse is moved, the original cursor is replaced (go
       figure!).  Now sets the cursor whenever a WM_MOUSEMOVE message
       is received, because the WM_SETCURSOR event resets the cursor
       even when in the decoration area.

    o  Geometry is not being handled quite right.  The numbers don't
       take into account the window decorations.  That is, if I say
       make a window 100x100, then the WHOLE window (not just the
       client area) is 100x100.  Therefore, the client (opengl) area
       is smaller than 100x100. (9/8/96)
    x  Fixed.  Added code to subtract the decoration size on glutGet()
       and add the decoration size on glutReshapeWindow().

    o  Multiple glutPostRedisplay() calls are NOT being combined.
       To get round the "coalesce" problem on glutPostRedisplay,
       the easiest solution is to roll-your-own coalesce by
       keeping a global "dirty" flag in the app (eg replace all
       calls to glutPostRedisplay with image_dirty=TRUE;), and to
       handle image_dirty with a single glutPostRedisplay in the
       idle callback when required.  (erk - but increases
       performance for my particular app (a rendering engine on
       the end of a pipleine with a stream of graphics updates) by
       a couple of orders of magnitude ! ) (9/8/96)
    x  Added code to coalesce redisplays.  Every idle cycle, a
       check is made to see which windows need redisplay, if they
       need it, a redisplay is posted.  The glutPostRedisplay()
       call is just a stub that sets a flag.


THANKS:

    Special thanks to the following people for extensive testing, 
    suggestions, fixes and help:

    Alexander Stohr
    Shane Clauson
    Kenny Hoff
    Richard Readings
    Paul McQuesten
    Philip Winston
    JaeWoo Ahn
    Joseph Galbraith
    Paula Higgins
    Sam Fortin
    Chris Vale
    Bill Mitchell

    and of course, the original author of GLUT:
    Mark Kilgard.

    and many others...


COPYRIGHT:

The OpenGL Utility Toolkit distribution for Win32 (Windows NT &
Windows 95) contains source code modified from the original source
code for GLUT version 3.3 which was developed by Mark J. Kilgard.  The
original source code for GLUT is Copyright 1997 by Mark J. Kilgard.
GLUT for Win32 is Copyright 1997 by Nate Robins and is not in the
public domain, but it is freely distributable without licensing fees.
It is provided without guarantee or warrantee expressed or implied.
It was ported with the permission of Mark J. Kilgard by Nate Robins.

THIS SOURCE CODE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

OpenGL (R) is a registered trademark of Silicon Graphics, Inc.