I Tried making a class using the exmaple of lesson 2 from NeHe tutorial…but get the following errors…could you please tell how to get around this problem.
Error : function call ‘glutDisplayFunc(void)’ does not match
‘glutDisplayFunc(void ()())’
myGLObject.cp line 160 glutDisplayFunc(DrawGLScene);
1.
Error : function call ‘glutReshapeFunc(void)’ does not match
'glutReshapeFunc(void ()(int, int))’
myGLObject.cp line 161 glutReshapeFunc(ReSizeGLScene);
2.
Error : function call ‘glutDisplayFunc(void)’ does not match
‘glutDisplayFunc(void (*)())’
myGLObject.cp line 160 glutDisplayFunc(DrawGLScene);
Error : function call ‘glutReshapeFunc(void)’ does not match
‘glutReshapeFunc(void (*)(int, int))’
myGLObject.cp line 161 glutReshapeFunc(ReSizeGLScene);
#include"myGLObject.h"
GLvoid myGLObject::InitGL(GLvoid)
{
glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // This Will Clear The Background Color To Black
glClearDepth(1.0); // Enables Clearing Of The Depth Buffer
glDepthFunc(GL_LESS); // The Type Of Depth Test To Do
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glShadeModel(GL_SMOOTH); // Enables Smooth Color Shading
glMatrixMode(GL_PROJECTION);
glLoadIdentity(); // Reset The Projection Matrix
gluPerspective(45.0f,(GLfloat)kWindowWidth/(GLfloat)kWindowHeight,0.1f,100.0f); // Calculate The Aspect Ratio Of The Window
glMatrixMode(GL_MODELVIEW);
}
// DrawGLScene ---------------------------------------------------------------
GLvoid myGLObject: rawGLScene(GLvoid)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
glLoadIdentity(); // Reset The View
glTranslatef(-1.5f,0.0f,-6.0f);
glBegin(GL_POLYGON);
glVertex3f( 0.0f, 1.0f, 0.0f);
glVertex3f(-1.0f,-1.0f, 0.0f);
glVertex3f( 1.0f,-1.0f, 0.0f);
glEnd();
glTranslatef(3.0f,0.0f,0.0f);
glBegin(GL_QUADS);
glVertex3f(-1.0f, 1.0f, 0.0f);
glVertex3f( 1.0f, 1.0f, 0.0f);
glVertex3f( 1.0f,-1.0f, 0.0f);
glVertex3f(-1.0f,-1.0f, 0.0f);
glEnd();
glFlush();
}
// ReSizeGLScene ------------------------------------------------------------
GLvoid myGLObject::ReSizeGLScene(int Width, int Height)
{
glViewport (0, 0, (GLsizei) Width, (GLsizei) Height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0, (GLfloat) Width / (GLfloat) Height, 0.1, 100.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
// draw object ------------------------------------------------------------
GLvoid myGLObject::showmyobject(GLvoid){
setGraphControl();
InitGL();
glutDisplayFunc(DrawGLScene);
glutReshapeFunc(ReSizeGLScene);
}
Thank you for your assistance…