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To troubleshoot glfw, define anthe glfw error callback:

void error_callback( int error, const char *msg ) {
    std::string s;
    s = " [" + std::to_string(error) + "] " + msg + '\n';
    std::cerr << s << std::endl;
}

Before initnializing glfw, set the callback:

glfwSetErrorCallback( error_callback );

Give it a few hints:

if( GL_TRUE != glfwInit() )
    std::cerr << "Error initialising glfw" << std::endl;
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 4 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 5 );
// If you want the opengl debug callbackcontext from 4.3 onwards, which you do:
glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE );
glfwWindowHint( GLFW_CLIENT_API, GLFW_OPENGL_API );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );

And the window should open effortlessly, assuming the OS base with driver works edit: and the function glfwInit() is called instead of its pointer questioned.

To troubleshoot, define an error callback:

void error_callback( int error, const char *msg ) {
    std::string s;
    s = " [" + std::to_string(error) + "] " + msg + '\n';
    std::cerr << s << std::endl;
}

Before initnializing glfw, set the callback:

glfwSetErrorCallback( error_callback );

Give it a few hints:

if( GL_TRUE != glfwInit() )
    std::cerr << "Error initialising glfw" << std::endl;
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 4 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 5 );
// If you want the debug callback from 4.3 onwards, which you do:
glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE );
glfwWindowHint( GLFW_CLIENT_API, GLFW_OPENGL_API );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );

And the window should open effortlessly, assuming the OS base with driver works edit: and the function glfwInit() is called instead of its pointer questioned.

To troubleshoot glfw, define the glfw error callback:

void error_callback( int error, const char *msg ) {
    std::string s;
    s = " [" + std::to_string(error) + "] " + msg + '\n';
    std::cerr << s << std::endl;
}

Before initnializing glfw, set the callback:

glfwSetErrorCallback( error_callback );

Give it a few hints:

if( GL_TRUE != glfwInit() )
    std::cerr << "Error initialising glfw" << std::endl;
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 4 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 5 );
// If you want the opengl debug context from 4.3 onwards, which you do:
glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE );
glfwWindowHint( GLFW_CLIENT_API, GLFW_OPENGL_API );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );

And the window should open effortlessly, assuming the OS base with driver works edit: and the function glfwInit() is called instead of its pointer questioned.

added 78 characters in body
Source Link
user136710
user136710

To troubleshoot, define an error callback:

void error_callback( int error, const char *msg ) {
    std::string s;
    s = " [" + std::to_string(error) + "] " + msg + '\n';
    std::cerr << s << std::endl;
}

Before initnializing glfw, set the callback:

glfwSetErrorCallback( error_callback );

Give it a few hints:

if( GL_TRUE != glfwInit() )
    std::cerr << "Error initialising glfw" << std::endl;
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 4 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 5 );
// If you want the debug callback from 4.3 onwards, which you do:
glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE );
glfwWindowHint( GLFW_CLIENT_API, GLFW_OPENGL_API );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );

And the window should open effortlessly, assuming the OS base with driver works edit: and the function glfwInit() is called instead of its pointer questioned.

To troubleshoot, define an error callback:

void error_callback( int error, const char *msg ) {
    std::string s;
    s = " [" + std::to_string(error) + "] " + msg + '\n';
    std::cerr << s << std::endl;
}

Before initnializing glfw, set the callback:

glfwSetErrorCallback( error_callback );

Give it a few hints:

if( GL_TRUE != glfwInit() )
    std::cerr << "Error initialising glfw" << std::endl;
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 4 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 5 );
// If you want the debug callback from 4.3 onwards, which you do:
glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE );
glfwWindowHint( GLFW_CLIENT_API, GLFW_OPENGL_API );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );

And the window should open effortlessly, assuming the OS base with driver works.

To troubleshoot, define an error callback:

void error_callback( int error, const char *msg ) {
    std::string s;
    s = " [" + std::to_string(error) + "] " + msg + '\n';
    std::cerr << s << std::endl;
}

Before initnializing glfw, set the callback:

glfwSetErrorCallback( error_callback );

Give it a few hints:

if( GL_TRUE != glfwInit() )
    std::cerr << "Error initialising glfw" << std::endl;
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 4 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 5 );
// If you want the debug callback from 4.3 onwards, which you do:
glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE );
glfwWindowHint( GLFW_CLIENT_API, GLFW_OPENGL_API );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );

And the window should open effortlessly, assuming the OS base with driver works edit: and the function glfwInit() is called instead of its pointer questioned.

Source Link
user136710
user136710

To troubleshoot, define an error callback:

void error_callback( int error, const char *msg ) {
    std::string s;
    s = " [" + std::to_string(error) + "] " + msg + '\n';
    std::cerr << s << std::endl;
}

Before initnializing glfw, set the callback:

glfwSetErrorCallback( error_callback );

Give it a few hints:

if( GL_TRUE != glfwInit() )
    std::cerr << "Error initialising glfw" << std::endl;
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 4 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 5 );
// If you want the debug callback from 4.3 onwards, which you do:
glfwWindowHint( GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE );
glfwWindowHint( GLFW_CLIENT_API, GLFW_OPENGL_API );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );

And the window should open effortlessly, assuming the OS base with driver works.