The code is:

/*
 * This file is part of gtkD.
 *
 * dui is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * dui is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with dui; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 */

module simpleGL.SimpleGL;

private import gdk.Event;
private import gtk.DrawingArea;
private import gtk.Main;
private import gtk.MainWindow;
private import gtk.Widget;
private import glgdk.GLConfig;
private import glgdk.GLContext;
private import glgdk.GLdInit;
private import glgdk.GLWindow;
private import glgtk.GLCapability;
private import gtkglc.glgdktypes;

private import gtkglc.gl;
private import gtkglc.glu;

/**
 * This is a Simple class extending the DrawingArea widget.
 * A really simple Demo illustrating OpenGL with GtkD
 * It uses the GLCapability mixin to add the GL capabilities to the widget.
 * This example is provided under the terms of the GPL License.
 * Note the initialization of the GLCapabilities on the constructor.
 *
 * @author pac@tuxfamily.org
 */
class SimpleGL : DrawingArea
{

	GLfloat width;
	GLfloat height;
	
	/** need to include the mixin to add GL capabilities to this widget */
	mixin GLCapability;

	/**
	 * Construct a simple DrawingArea and sets the GLCapabilities
	 */
	this()
	{
		super(300, 300);
		setGLCapability();	// set the GL capabilities for this widget
	}

	/**
	 * put any gl initializations here
	 * returns true to consume the event
	 */
	void initGL()
	{
		resizeGL(null);
	}
	
	/**
	 * This method is called every time the window must be paint or repaint
	 * This is where you put the OpenGL call to draw something.
	 * This method call be called directly by the application without an event object
	 * to force redrawing of the scene.
	 * returns true to consume the event
	 */
	bool drawGL()
	{
		glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
		glLoadIdentity ();

		gluLookAt(0, 0, 10, 0, 0, 0, 0, 1,0); //Set the camera position

		//Just Draw a tri-colored triangle
		glBegin(GL_TRIANGLES);
		glColor3f(1.0f,0.0f,0.0f);
		glVertex3f( 0.0f, 1.0f, 0.0f);
		glColor3f(0.0f,1.0f,0.0f);
		glVertex3f(-1.0f,-1.0f, 0.0f);
		glColor3f(0.0f,0.0f,1.0f);
		glVertex3f( 1.0f,-1.0f, 0.0f);
		glEnd();
			
		return true;
	}

	/**
	 * This method is called when the window is resized
	 * returns true to consume the event
	 */
	bool resizeGL(Event event = null)
	{
		GLfloat w;
		GLfloat h;
		
		if ( event is null || event.type != GdkEventType.CONFIGURE )
		{
			w = getWidth();
			h = getHeight();
		}
		else
		{
			w = event.configure.width;
			h = event.configure.height;
		}
		
		width = w;
		height = h;
		
		glViewport (0, 0, cast(int)w, cast(int)h); //Adjust the viewport according to new window dimensions

		/*
		 * Update the projection Matrix accoding to the new dimension
		 * and reset the OpenGL state to MODELVIEW
		 */
		glMatrixMode (GL_PROJECTION);
		glLoadIdentity ();
		gluPerspective(20, w/h, 0.1, 10);
		glMatrixMode (GL_MODELVIEW);

		return true;
	}
}

void main(string[] args)
{
	Main.init(args);

	GLdInit.init(args);
	
	SimpleGL simpleGL = new SimpleGL();
	MainWindow window = new MainWindow("Simplest OpenGL Example");
	window.add(simpleGL);
	window.showAll();
		
	Main.run();
}


The errors are:

Building Debug\SimpleGL.exe...
OPTLINK (R) for Win32  Release 8.00.12
Copyright (C) Digital Mars 1989-2010  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
Debug\SimpleGL.obj(SimpleGL)
 Error 42: Symbol Undefined _gluLookAt@72
Debug\SimpleGL.obj(SimpleGL)
 Error 42: Symbol Undefined _gluPerspective@32
Debug\SimpleGL.obj(SimpleGL)
 Error 42: Symbol Undefined _D6gtkglc3glu12__ModuleInfoZ
Debug\SimpleGL.obj(SimpleGL)
 Error 42: Symbol Undefined _D6gtkglc2gl12__ModuleInfoZ

I'm linking with GlU32.Lib and OpenGL32.Lib found in a "windows sdk" folder on my system with a windows search.  I converted them to OMF using the coffimplib tool provided by digital mars.  So this worked for the OpenGL32.Lib and got rid of those errors but the GlU32.Lib symbol errors persist.

Thank you!

Don't know if this helps but I did a dumpbin on the original COFF glu32.lib and output is:

   Exports

       ordinal    name

                  _gluUnProject@48
                  _gluTessVertex@12
                  _gluTessProperty@16
                  _gluTessNormal@28
                  _gluTessEndPolygon@4
                  _gluTessEndContour@4
                  _gluTessCallback@12
                  _gluTessBeginPolygon@8
                  _gluTessBeginContour@4
                  _gluSphere@20
                  _gluScaleImage@36
                  _gluQuadricTexture@8
                  _gluQuadricOrientation@8
                  _gluQuadricNormals@8
                  _gluQuadricDrawStyle@8
                  _gluQuadricCallback@12
                  _gluPwlCurve@20
                  _gluProject@48
                  _gluPickMatrix@36
                  _gluPerspective@32
                  _gluPartialDisk@44
                  _gluOrtho2D@32
                  _gluNurbsSurface@44
                  _gluNurbsProperty@12
                  _gluNurbsCurve@28
                  _gluNurbsCallback@12
                  _gluNextContour@8
                  _gluNewTess@0
                  _gluNewQuadric@0
                  _gluNewNurbsRenderer@0
                  _gluLookAt@72
                  _gluLoadSamplingMatrices@16
                  _gluGetTessProperty@12
                  _gluGetString@4
                  _gluGetNurbsProperty@12
                  _gluErrorUnicodeStringEXT@4
                  _gluErrorString@4
                  _gluEndTrim@4
                  _gluEndSurface@4
                  _gluEndPolygon@4
                  _gluEndCurve@4
                  _gluDisk@28
                  _gluDeleteTess@4
                  _gluDeleteQuadric@4
                  _gluDeleteNurbsRenderer@4
                  _gluCylinder@36
                  _gluBuild2DMipmaps@28
                  _gluBuild1DMipmaps@24
                  _gluBeginTrim@4
                  _gluBeginSurface@4
                  _gluBeginPolygon@4
                  _gluBeginCurve@4

Try this http://gtkd.org/Downloads/GtkDGL.zip

On 05/19/2013 09:43 AM, Alexandr Druzhinin wrote:
> Try this http://gtkd.org/Downloads/GtkDGL.zip
>

The glu32.lib in that zip contains only the symbols needed by the SimpleGL demo.

-- 
Mike Wey

All right, the glu errors are gone but I still have

OPTLINK (R) for Win32  Release 8.00.12
Copyright (C) Digital Mars 1989-2010  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _D6gtkglc2gl12__ModuleInfoZ
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _D6gtkglc3glu12__ModuleInfoZ
Building Debug\ConsoleApp2.exe failed!

I replaced all my .libs with those in the zip.

On 05/19/2013 05:06 PM, Enjoys Math wrote:
> All right, the glu errors are gone but I still have
>
> OPTLINK (R) for Win32  Release 8.00.12
> Copyright (C) Digital Mars 1989-2010  All rights reserved.
> http://www.digitalmars.com/ctg/optlink.html
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _D6gtkglc2gl12__ModuleInfoZ
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _D6gtkglc3glu12__ModuleInfoZ
> Building Debug\ConsoleApp2.exe failed!
>
> I replaced all my .libs with those in the zip.

Building with bud/build doesn't include the opengl and glu files in the GtkD.lib, Fixed in: https://github.com/gtkd-developers/GtkD/commit/c19a533e018bab16ba6ad44afe8a46540a7e5a6a

-- 
Mike Wey

19.05.2013 20:11, Mike Wey пишет:
> On 05/19/2013 09:43 AM, Alexandr Druzhinin wrote:
>> Try this http://gtkd.org/Downloads/GtkDGL.zip
>>
>
> The glu32.lib in that zip contains only the symbols needed by the
> SimpleGL demo.
>
I built more complex application than SimpleGL successfully with it.
Can you provide more info about its restriction?

On 05/19/2013 06:10 PM, Alexandr Druzhinin wrote:
> 19.05.2013 20:11, Mike Wey пишет:
>> On 05/19/2013 09:43 AM, Alexandr Druzhinin wrote:
>>> Try this http://gtkd.org/Downloads/GtkDGL.zip
>>>
>>
>> The glu32.lib in that zip contains only the symbols needed by the
>> SimpleGL demo.
>>
> I built more complex application than SimpleGL successfully with it.
> Can you provide more info about its restriction?

I created it using a def file containing the symbols the SimpleGL demo needed.

-- 
Mike Wey

I've built GtkD from the latest on github and linked with gtkd.lib gtkdgl.lib and still have the undefined symbols:

OPTLINK (R) for Win32  Release 8.00.12
Copyright (C) Digital Mars 1989-2010  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glFlush@0
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _gluLookAt@72
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glBegin@4
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glClear@4
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glColor3f@12
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glVertex3f@12
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glEnd@0
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glLoadIdentity@0
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glMatrixMode@4
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _glViewport@16
Debug\ConsoleApp2.obj(ConsoleApp2)
 Error 42: Symbol Undefined _gluPerspective@32

On 05/19/2013 07:08 PM, Enjoys Math wrote:
> I've built GtkD from the latest on github and linked with gtkd.lib
> gtkdgl.lib and still have the undefined symbols:
>
> OPTLINK (R) for Win32  Release 8.00.12
> Copyright (C) Digital Mars 1989-2010  All rights reserved.
> http://www.digitalmars.com/ctg/optlink.html
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glFlush@0
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _gluLookAt@72
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glBegin@4
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glClear@4
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glColor3f@12
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glVertex3f@12
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glEnd@0
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glLoadIdentity@0
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glMatrixMode@4
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _glViewport@16
> Debug\ConsoleApp2.obj(ConsoleApp2)
>   Error 42: Symbol Undefined _gluPerspective@32

Are you linking with opengl and glu ?

-- 
Mike Wey