al_get_ope...oc_address(3)

💅 NAME 💅

al_get_opengl_proc_address — the Allegro 5 API, bestie ✨

---

🦋 SYNOPSIS 🦋

#include <allegro5/allegro_opengl.h>

void *al_get_opengl_proc_address(const char *name)

---

🌸 DESCRIPTION 🌸

Okay so picture this: this function is literally your little helper for getting the address of an OpenGL symbol. That's the whole gig. No cap 💖

Example time, bestie 🎀 — here's how you'd get the function glMultiTexCoord3fARB, which comes with ARB's Multitexture extension:

// define the type of the function
ALLEGRO_DEFINE_PROC_TYPE(void, MULTI_TEX_FUNC,
                         (GLenum, GLfloat, GLfloat, GLfloat));
// declare the function pointer
MULTI_TEX_FUNC glMultiTexCoord3fARB;
// get the address of the function
glMultiTexCoord3fARB = (MULTI_TEX_FUNC) al_get_opengl_proc_address(
                                                        "glMultiTexCoord3fARB");

So if glMultiTexCoord3fARB is not NULL, then it can be used as if it has been defined in the OpenGL core library. Like, it just works — iconic behavior 👑

⚠️ Note, and this one matters: under Windows, OpenGL functions may need a special calling convention, so it's best to always use the ALLEGRO_DEFINE_PROC_TYPE macro when declaring function pointer types for OpenGL functions. Don't skip this, fr fr 🙈

Parameters:

• name — the name of the symbol you want to link to. That's it, that's the vibe 🌈

---

⭐ RETURN VALUE ⭐

A pointer to the symbol if it's available, or NULL otherwise. Simple as that, periodt 💅

---

okay that's the whole page, go be a main character with your function pointers 🧚

Allegro reference manual — al_get_ope...oc_address(3) 🫶 bye bestie, mwah 💜