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Improve header section of tutorial
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@ -26,16 +26,15 @@ to include the GLFW 3 header file.
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@endcode
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This defines all the constants, types and function prototypes of the GLFW API.
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It also includes the OpenGL header, and defines all the constants and types
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necessary for it to work on your platform.
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It also includes the OpenGL header from your development environment and
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defines all the constants and types necessary for it to work on your platform.
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For example, under Windows you are normally required to include `windows.h`
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before including `GL/gl.h`. This would make your source file tied to Windows
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and pollute your code's namespace with the whole Win32 API.
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before including `GL/gl.h`. This would pollute your program's namespace with
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the whole Win32 API.
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Instead, the GLFW header takes care of this for you, not by including
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`windows.h`, but rather by itself duplicating only the necessary parts of it.
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It does this only where needed, so if `windows.h` _is_ included, the GLFW header
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Instead, the GLFW header duplicates only the very few necessary parts of it. It
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does this only when needed, so if `windows.h` _is_ included, the GLFW header
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does not try to redefine those symbols.
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In other words:
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