SDL2 PutPixel (macOS)

A tiny C++ program using SDL2 on macOS that opens an 800×600 window and draws a single red pixel (10×10 square) at the center.

Screenshot

Installation & Compilation

macOS

brew install sdl2 pkg-config
clang++ -std=c++17 $(pkg-config --cflags --libs sdl2) putpixel.cpp -o putpixel
./putpixel

Linux (Ubuntu/Debian)

sudo apt update
sudo apt install libsdl2-dev pkg-config
g++ -std=c++17 $(pkg-config --cflags --libs sdl2) putpixel.cpp -o putpixel
./putpixel

Windows (with MSYS2/MinGW)

pacman -S mingw-w64-x86_64-SDL2 mingw-w64-x86_64-pkg-config
g++ -std=c++17 $(pkg-config --cflags --libs sdl2) putpixel.cpp -o putpixel.exe
./putpixel.exe

Windows (Visual Studio)

1. Download SDL2 development libraries from libsdl.org
2. Extract and configure include/lib paths in Visual Studio
3. Link against SDL2.lib and SDL2main.lib

Alternative: Using Make

make
./putpixel

What it does

• Opens an 800×600 black window
• Draws a single red pixel (10×10 square for visibility) at coordinates (400, 300)
• Continues running until you close the window

Requirements

• SDL2 library
• C++ compiler (Clang++, GCC, or MSVC)
• pkg-config (for easier compilation)