When I run this program (C) :

#include <stdio.h>
#include <stdlib.h>
#include <SDL2/SDL.h>
#include "./constants.h"

int game_is_running = FALSE;
SDL_Window *window = NULL;
SDL_Renderer * renderer = NULL;

int initialize_window(void){
    if(SDL_Init(SDL_INIT_EVERYTHING) != 0){
        fprintf(stderr, "Error initializing SDLn");
        return FALSE;
    }
    window = SDL_CreateWindow("SDL WINDOW", SDL_WINDOWPOS_CENTERED,SDL_WINDOWPOS_CENTERED, WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_BORDERLESS);
    if (!window){
        fprintf(stderr,"Error creating SDL Windown");
        return FALSE;
    }

    SDL_Renderer * renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
    if(!renderer){
        fprintf(stderr,"Error creating renderern");
        return FALSE;
    }

    return TRUE;
}

void setup(){

}

void update(){

}

void render(){
    SDL_SetRenderDrawColor(renderer, 0,0,0,255);
    SDL_RenderClear(renderer);

    //Start drawing game objects
    SDL_SetRenderDrawColor(renderer, 255,0,0,255);
    SDL_RenderDrawLine(renderer,0,0,50,50);
    
    SDL_RenderPresent(renderer);
}

void destroy_window(){
    SDL_DestroyRenderer(renderer);
    SDL_DestroyWindow(window);
    SDL_Quit();
    //exit(0);
}

int main(int argc, char **argv){
    
    int game_is_running = initialize_window();

    setup();
    SDL_Event e;
    while(game_is_running){
        SDL_PollEvent(&e);
        if(e.type ==SDL_KEYDOWN)
        {
            if(e.key.keysym.sym == SDLK_ESCAPE){
                game_is_running = FALSE;
                destroy_window();
            }
        }
        update();
        render();
    }

    destroy_window();

    return 0;
}

I get an empty window that is transparent and has no color

This is a C program and I’m using gcc main.c -o game -lSDL2 -lSDL2main to compile the program running on kali 2024.2

I tried taking the render() function and putting it in the while(game_is_running) loop.

Also tried setting the SDL_Create_Renderer() flag to 0.

I haven’t seen an answer to this online and this solution is not what I am looking for

Any help is greatly appreciated :))

(Also StackOverflow is detecting this as a cpp program but it’s in C)