Handmade Hero Day 004 - Animating the Backbuffer

Day 004 of coding on Handmade Hero. See for details. 1. Comments about BitBlt and StretchDIBits 2. VirtualAlloc 3. StretchDIBits 4. Storing pixels in memory 5. Blue-Green Gradient Renderer 6. PeekMessage 7. Animating window on the screen