al_get_opengl_proc_address(3alleg5)

✨ al_get_opengl_proc_address — Allegro 5 API ✨

okay bestie, welcome to al_get_opengl_proc_address(3alleg5) from the Allegro reference manual 💖 this one's a lil OpenGL-flavored bop and honestly it's giving "glue code but make it iconic" 🫶

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🌸 SYNOPSIS 🌸

#include <allegro5/allegro_opengl.h>

void *al_get_opengl_proc_address(const char *name)

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💅 DESCRIPTION 💅

so like, this is a helper that gets you the address of an OpenGL symbol. that's it, that's the job, and it does it flawlessly no cap 💁‍♀️

Example time, bestie — here's how you'd grab the function glMultiTexCoord3fARB that ships 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");

and if glMultiTexCoord3fARB is not NULL then you can just use it like it was defined in the OpenGL core library the whole time. main character energy fr fr 👑

Note: 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.

like, listen — Windows will absolutely do you dirty if you skip the macro, so don't skip the macro, periodt 😭💀

Parameters:

• name — The name of the symbol you want to link to. (the little string that tells us which function we're hunting for 🔍)

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🎀 RETURN VALUE 🎀

a pointer to the symbol if it's available, or NULL otherwise. so either you get your function or you get nothing, and there's no in-between — vibe check passed, no surprises ✨

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and that's the whole page bestie, slay 💖✨

this lil cutie comes from the Allegro reference manual, page al_get_opengl_proc_address(3alleg5) — go forth and link your OpenGL symbols, you absolute legend 🦋🌸💅