GlAccum: Difference between revisions

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* Use the following table for conversion to the respective QB64 [[Variable Types]].
* Use the following table for conversion to the respective QB64 [[Variable Types]].
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  GLenum      => unsigned int
  OpenGL    =>    C/C++        =>      QB64
  GLboolean  => unsigned char
------------------------------------------------------------
  GLbitfield  => unsigned int
  GLenum      => unsigned int   =>  [[_UNSIGNED]] [[LONG]]
  GLbyte      => signed char
  GLboolean  => unsigned char   =>  [[_UNSIGNED]] [[_BYTE]]
  GLshort    => short
  GLbitfield  => unsigned int   =>  [[_UNSIGNED]] [[LONG]]
  GLint      => int
  GLbyte      => signed char     =>  [[_BYTE]]
  GLsizei    => int
  GLshort    => short           =>  [[INTEGER]]
  GLubyte    => unsigned char
  GLint      => int             =>  [[LONG]]
  GLushort    => unsigned short
  GLsizei    => int             =>  [[LONG]]
  GLuint      => unsigned int
  GLubyte    => unsigned char   =>  [[_UNSIGNED]] [[_BYTE]]
  GLfloat    => float
  GLushort    => unsigned short =>  [[_UNSIGNED]] [[INTEGER]]
  GLclampf    => float
  GLuint      => unsigned int   =>  [[_UNSIGNED]] [[LONG]]
  GLdouble    => double
  GLfloat    => float           =>  [[SINGLE]]
  GLclampd    => double
  GLclampf    => float           =>  [[SINGLE]]
  GLvoid      => void
  GLdouble    => double         =>  [[DOUBLE]]
  GLclampd    => double         =>  [[DOUBLE]]
  GLvoid      => void           =>  no parameters used
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Revision as of 21:58, 13 July 2022

The _glAccum statement operates on the accumulation buffer.


Syntax

_glAccum GLenum op, GLfloat value


Parameters

  • OpenGL is using its own set of variable types with its command parameters.
  • Use the following table for conversion to the respective QB64 Variable Types.
  OpenGL     =>     C/C++        =>       QB64

GLenum => unsigned int => _UNSIGNED LONG GLboolean => unsigned char => _UNSIGNED _BYTE GLbitfield => unsigned int => _UNSIGNED LONG GLbyte => signed char => _BYTE GLshort => short => INTEGER GLint => int => LONG GLsizei => int => LONG GLubyte => unsigned char => _UNSIGNED _BYTE GLushort => unsigned short => _UNSIGNED INTEGER GLuint => unsigned int => _UNSIGNED LONG GLfloat => float => SINGLE GLclampf => float => SINGLE GLdouble => double => DOUBLE GLclampd => double => DOUBLE GLvoid => void => no parameters used


Description

  • OpenGL documentation is available in several places, so we won't reproduce it here for another time.
  • The full description for this command can be found at Microsoft Docs and is also valid for QB64 usage.


See also



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