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Thread: GLUT: Fatal Error in Prog14.exe: pixel format with necessary capabilities not found.

  1. #1
    Junior Member Newbie
    Join Date
    Aug 2003
    Location
    France
    Posts
    2

    GLUT: Fatal Error in Prog14.exe: pixel format with necessary capabilities not found.

    Hello
    I need help on this error.
    When I create a window in GLUT_INDEX mode (glutCreateWindow()), there is an error.
    I use Windows 98, Visual C++ 6.0, glut 3.7, with a GeForce 2 GTS graphic card.
    This code is an example of "OpenGL Programming Guide, Third Edition", french version.
    Please, explain to me...

    #include <GL/glut.h>

    #define RAMPSIZE 16
    #define RAMP1START 32
    #define RAMP2START 48
    static float rotAngle=0.;

    static void init(void){
    int i;
    for(i=0;i<RAMPSIZE;i++){
    GLfloat shade;
    shade=(GLfloat)i/(GLfloat)RAMPSIZE;
    glutSetColor(RAMP1START+(GLint)i,0.,shade,0.);
    glutSetColor(RAMP2START+(GLint)i,0.,0.,shade);
    }
    glEnable(GL_LINE_SMOOTH);
    glHint(GL_LINE_SMOOTH_HINT,GL_DONT_CARE);
    glLineWidth(1.5);
    glClearIndex((GLfloat)RAMP1START);
    }

    void display(void){
    glClear(GL_COLOR_BUFFER_BIT);
    glIndexi(RAMP1START);
    glPushMatrix();
    glRotatef(-rotAngle,0.0,0.0,0.1);
    glBegin(GL_LINES);
    glVertex2f(-0.5,0.5);
    glVertex2f(0.5,-0.5);
    glEnd();
    glPopMatrix();
    glIndexi(RAMP2START);
    glPushMatrix();
    glRotatef(rotAngle,0.0,0.0,0.1);
    glBegin(GL_LINES);
    glVertex2f(0.5,0.5);
    glVertex2f(-0.5,-0.5);
    glEnd();
    glPopMatrix();
    glFlush();
    }

    void reshape(int w,int h){
    glViewport(0,0,(GLsizei)w,(GLsizei)h);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    if(w<=h)
    gluOrtho2D(-1.0,1.0,-1.0*(GLfloat)h/(GLfloat)w,1.0*(GLfloat)h/(GLfloat)w);
    else
    gluOrtho2D(-1.0*(GLfloat)w/(GLfloat)h,1.0*(GLfloat)w/(GLfloat)h,-1.0,1.0);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    }

    void keyboard(unsigned char key,int x,int y){
    switch(key){
    case 'r':
    case 'R':
    rotAngle+=20.;
    if(rotAngle>=360.)rotAngle=0.;
    glutPostRedisplay();
    break;
    case 27:
    exit(0);
    break;
    default:
    break;
    }
    }

    int main(int argc,char **argv){
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_SINGLE|GLUT_INDEX);
    glutInitWindowSize(200,200);
    glutInitWindowPosition(100,100);
    glutCreateWindow("Lissage en mode index couleur");
    init();
    glutDisplayFunc(display); glutReshapeFunc(reshape); glutKeyboardFunc(keyboard); glutMainLoop();
    return 0;
    }

  2. #2
    Senior Member OpenGL Pro
    Join Date
    May 2001
    Location
    Kristianstad,Skåne,Sweden
    Posts
    1,595

    Re: GLUT: Fatal Error in Prog14.exe: pixel format with necessary capabilities not found.

    Hi !

    A wild guess is that you are using true color mode on your computer ?, in that case you will not be able to use GLUT_INDEX (palette mode) in a window, you need to run in fullscreen mode.

    Mikael

  3. #3
    Junior Member Newbie
    Join Date
    Aug 2003
    Location
    France
    Posts
    2

    Re: GLUT: Fatal Error in Prog14.exe: pixel format with necessary capabilities not found.

    Okay, thank you
    It works with 16 bits color mode

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