Module: SDL2::WINDOWPOS

Includes:
EnumerableConstants
Defined in:
lib/sdl2/window.rb

Overview

Used to indicate that you don’t care what the window position is.

Constant Summary collapse

UNEDFINED_MASK = 
0x1FFF0000
UNDEFINED = 
undefined_display(0)
CENTERED_MASK = 
0x2FFF0000
CENTERED = 
centered_display(0)

Class Method Summary collapse

Methods included from EnumerableConstants

included

Class Method Details

.centered_display(x) ⇒ Object 



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# File 'lib/sdl2/window.rb', line 51

def self.centered_display(x)
  self::CENTERED_MASK | x
end

.is_centered(x) ⇒ Object 



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# File 'lib/sdl2/window.rb', line 57

def self.is_centered(x)
  (((x)&0xFFFF0000) == self::CENTERED_MASK)
end

.is_undefined(x) ⇒ Object

SDL_video.h doesn’t have much documentation on this, I think it is used internally, but may be useful for applications.



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# File 'lib/sdl2/window.rb', line 45

def self.is_undefined(x)
  (((x)&0xFFFFF00000) == self::UNDEFINED_MASK)
end

.undefined_display(x) ⇒ Object

Used to generate the UNDEFINED constant, which if I understand correctly is just UNDEFINED_MASK anyways. I think this is to encourage divers/applications to write specific undefined codes? ‘</ramble>`



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# File 'lib/sdl2/window.rb', line 37

def self.undefined_display(x)
  self::UNEDFINED_MASK|x
end