how do I chage pixel color? (SDL2)

After a long time away, I'm coming back to SDL, using version SDL2. I have some example code that does pretty much exactly what I want it to do, but I want to change the pixel color. Ive tried changing the function of *pixels, to make pixels a surface where I might have the option to change color, but I cant seem to figure out how to change the color.

#include <iostream> #include <SDL2/SDL.h> //Source: https://bitbucket.org/dandago/gigilabs/src/master/Sdl2PixelDrawing/Sdl2PixelDrawing/main.cpp //Define window height, width #define height 1280 #define width 760 int main(int argc, char ** argv){ bool leftMouseButtonDown = false; bool quit = false; SDL_Event event; SDL_Init(SDL_INIT_VIDEO); SDL_Window * window = SDL_CreateWindow("SDL2 Pixel Drawing", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, height, width, SDL_WINDOW_FULLSCREEN); SDL_Renderer * renderer = SDL_CreateRenderer(window, -1, 0); SDL_Texture * texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, height, width); Uint32 * pixels = new Uint32[height * width]; //SDL_Surface* pixels = SDL_CreateRGBSurfaceWithFormat(0, width, height,32, SDL_PIXELFORMAT_RGBX8888); memset(pixels, 255, height * width * sizeof(Uint32)); //int is bg color while (!quit){ SDL_UpdateTexture(texture, NULL, pixels, height * sizeof(Uint32)); SDL_WaitEvent(&event); switch (event.type){ case SDL_QUIT: quit = true; break; case SDL_MOUSEBUTTONUP: if (event.button.button == SDL_BUTTON_LEFT) leftMouseButtonDown = true; break; case SDL_MOUSEBUTTONDOWN: if (event.button.button == SDL_BUTTON_LEFT) leftMouseButtonDown = true; case SDL_MOUSEMOTION: if (leftMouseButtonDown){ int mouseX = event.motion.x; int mouseY = event.motion.y; pixels[mouseY * height+ mouseX] = 0; } break; } SDL_RenderClear(renderer); SDL_RenderCopy(renderer, texture, NULL, NULL); SDL_RenderPresent(renderer); } delete[] pixels; SDL_DestroyTexture(texture); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return 0; }