Mohammad Alruwaili SerProspekt

Win32 Layered Window

Before continue this article, should read Win32 Window Basic.

To create layered window, call CreateWindowEx with WS_EX_LAYERED (https://msdn.microsoft.com/en-us/library/windows/desktop/ff700543(v=vs.85).aspx)

  WNDCLASSEX cls;
  memset(&cls, 0, sizeof(WNDCLASSEX));
 cls.cbSize = sizeof(WNDCLASSEX);

Trigonometry

const float PI = 3.1415926535897932384626433832795;
const float PI_2 = 1.57079632679489661923;
const float PI_4 = 0.785398163397448309616;

float PHI = (1.0+sqrtf(5.0))/2.0;

	/*
	Minimal SDL2 + OpenGL3 example.

	Author: https://github.com/koute

	This file is in the public domain; you can do whatever you want with it.
	In case the concept of public domain doesn't exist in your jurisdiction
	you can also use this code under the terms of Creative Commons CC0 license,
	either version 1.0 or (at your option) any later version; for details see:
	http://creativecommons.org/publicdomain/zero/1.0/