Visual Studio Glew

Asked Sep 28 '15 at 14:03

Active Sep 28 '15 at 14:03

Viewed 26 times

I have a problem.

I'm learning OpenGL and I want to draw a triangle. But it does'nt work.

Error Messages:

LNK1120 1 unresolved externals

LNK2019 Reference to unresolved external symbol"__imp__glDrawArrays@12" in function ""void __cdecl draw(void)" (?draw@@YAXXZ)".

Code:

#include <GL/glew.h>

GLuint vertexBuffer;

void initDraw() {
    GLuint vertexArrayID;
    glGenVertexArrays(1, &vertexArrayID);
    glBindVertexArray(vertexArrayID);

    static const GLfloat g_vertex_buffer_data[] = {
        -1.0f, -1.0f, 0.0f,
        1.0f, -1.0f, 0.0f,
        0.0f,  1.0f, 0.0f,
    };

    glGenBuffers(1, &vertexBuffer);
    glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
    glBufferData(GL_ARRAY_BUFFER, sizeof(g_vertex_buffer_data),
    g_vertex_buffer_data, GL_STATIC_DRAW);
}

void draw() {
    glEnableVertexAttribArray(0);
    glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, (void*)0);

    glDrawArrays(GL_TRIANGLES, 0, 3);

    glDisableVertexAttribArray(0);
}

Sorry for the bad english, especially for the error messages. My IDE show me the errors in german and I must translate this.

asked Sep 28 '15 at 14:03

Grevak

You will need to link opengl32.lib, glew32.lib (and maybe build glew first) – melak47 Sep 28 '15 at 14:10
I have linked glew32.lib, but which opengl32.lib? (I have built glew) – Grevak Sep 28 '15 at 14:12
3

Windows comes with opengl32.lib. – melak47 Sep 28 '15 at 14:12
In which directory is this lib? – Grevak Sep 28 '15 at 14:14
It's somewhere in a system directory. Visual Studio will already have the path so you only need to add "opengl32.lib" to the linker input – BDL Sep 28 '15 at 14:15
Thanks, it's work! But I don't see a triangle. – Grevak Sep 28 '15 at 14:17
1

You should ask a new question and show there all necessary code. – BDL Sep 28 '15 at 14:28

Visual Studio Glew

0 Answers0