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# newbie opengl question

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Hi there. I’m trying to get back to doing some openGL programming but have come across a rather annoying and confusing problem After I compile a program I’ve written (Borland bcc32 if that’s important) and try to run the .exe, I get a ' test1.exe has encountered a problem and needs to close. We are sorry for the inconvenience' error with windows asking if I want to send an error report (to who… me?). I assumed it was my programming ineptitude so I tired opening a simple exe (just opens a blank window) and the same error pops up. I don’t know what to do. Any help you guys could give would be great. Cheers.

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Wow. That was quick

#include <windows.h>
#include <GL/glut.h>
#include <stdio.h>
#include <stdlib.h>

void init ( void ) {
glEnable ( GL_DEPTH_TEST );
glClearColor ( 0.0, 0.0, 0.0, 0.0 );
}

void display ( void ) {
glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix ( );
glPopMatrix ( );
glutSwapBuffers ( );
}

void reshape(int w, int h) {
glViewport ( 0, 0, w, h );
glMatrixMode ( GL_PROJECTION );
if ( h==0 )
gluPerspective ( 80, ( float ) w, 1.0, 5000.0 );
else
gluPerspective ( 80, ( float ) w / ( float ) h, 1.0, 5000.0 );
glMatrixMode ( GL_MODELVIEW );

}

void keyboard ( unsigned char key, int x, int y ) {
switch ( key ) {
case 27: /* Escape key */
exit ( 0 );
break;
case 'f':
glutFullScreen ( );
break;
case 'w':
glutReshapeWindow ( 250,250 );
break;
default:
break;
}
}

int main ( int argc, char** argv ) {
glutInit ( &argc, argv );
glutInitDisplayMode ( GLUT_RGB | GLUT_DOUBLE );
glutInitWindowSize ( 250, 250 );
glutCreateWindow ( argv[0] );
init ( );
glutReshapeFunc ( reshape );
glutKeyboardFunc ( keyboard );
glutDisplayFunc ( display );
glutMainLoop ( );
return 0;
}

It's as simple a program as I could make. I even got a mate to compile and run it and he had no problems.

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Well, if your mate could compile and run it without problems, have you tried to do a clean and then build it from scratch? Probably under "Build" menu.

Also, I can't see any point to having these two lines called one after the other:
glPushMatrix ( );glPopMatrix ( );

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I'd also make sure that your OGL files are all of the same version. If so, make sure they are the latest.

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Cheers all. First off, the glPushMatrix() and glPopMatrix() were left behind from hacking my code down to see what was wrong with it, well spotted. I have tried cleaning and building from scratch repeatedly without much luck.

I've also changed to the latest glut32 files... nothin’.

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Wait a minute. I've just tired linking the compiled file and got loads of these error messages

Error: Unresolved external 'glutInit' referenced from C:\DOCUMENTS AND SETTINGS\MY DOCUMENTS\CPROJECTS\TESTER\TEST1.OBJ
Error: Unresolved external 'glutInitDisplayMode' referenced from C:\DOCUMENTS AND SETTINGS\MY DOCUMENTS\CPROJECTS\TESTER\TEST1.OBJ
***
***
***
Error: Unresolved external 'glutInitWindowSize' referenced from C:\DOCUMENTS AND SETTINGS\MY DOCUMENTS\CPROJECTS\TESTER\TEST1.OBJ
Error: Unresolved external 'glutCreateWindow' referenced from C:\DOCUMENTS AND SETTINGS\MY DOCUMENTS\CPROJECTS\TESTER\TEST1.OBJ

I think why this didn’t come up before was because my clean tool's settings were wrong. Sorry if this has wasted any of your time, but how do I sort this out?

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What do you mean changed to the latest glut32 files??

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You didn't link to the GLUT library?

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I’ve linked to glut.lib now, and it crates an exe. Which is nice. But now it gives me a new runtime error message:

test1.exe - Unable to Locate Component
This application has failed to start because OPENGL.dll was not found. Re-initialising the application may fix this problem.

Any ideas?

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