A simple program, the inheritance and QOpenGLWidget custom class, compile no problem, but performs a blank, did not draw the required point, how to return a responsibility? A derived class code is as follows:
.h

 # # ifndef MYOPENGLWINDOW_H 
# define MYOPENGLWINDOW_H 

#include  
#include  
#include  
The class myOpenglWindow: public QOpenGLWidget, protected QOpenGLFunctions 
{
Q_OBJECT 
Public: 
Explicit myOpenglWindow (QWidget * parent=nullptr); 

Protected: 
Void initializeGL (); 
Void resizeGL (int int w, h); 
Void paintGL (); 
Signals: 

Public slots: 
}; 

# endif//MYOPENGLWINDOW_H 

.cpp

 # include "myopenglwindow. H" 
#include  
# include "glut. H" 
using namespace std; 
MyOpenglWindow: : myOpenglWindow (QWidget * parent) : QOpenGLWidget (parent) 
{

} 

Void myOpenglWindow: : initializeGL () 
{
InitializeOpenGLFunctions (); 
GlClearColor (1.0, 1.0, 1.0, 1.0); 
Cout} 

Void myOpenglWindow: : resizeGL (int w, int h) 
{
GlViewport (0, 0, (GLsizei) w, (GLsizei) h); 
GlMatrixMode (GL_PROJECTION); 
GlLoadIdentity (); 
GluOrtho2D (1.5, 1.5, 1.5, 1.5); 
GlMatrixMode (GL_MODELVIEW); 
GlLoadIdentity (); 
} 

Void myOpenglWindow: : paintGL () 
{
GlClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); 

GlPointSize (10.0); 
GlColor3d (1.0, 0.0, 0.0); 
GlBegin (GL_POINTS); 
GlVertex3d (0.0, 0.0, 0.0); 
GlEnd (); 
} 

CodePudding user response:

Baidu search relevant keywords,

CodePudding user response:

Never use glut. H
I am no problem directly with opengl native function

CodePudding user response:

https://blog.csdn.net/p942005405/article/details/103739702