GlDeleteTextures: Difference between revisions

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(Created page with "'''_glDeleteTextures:''' delete named textures {{PageSyntax}} : SUB _glDeleteTextures (BYVAL n AS LONG, textures AS _UNSIGNED LONG) : void '''_glDeleteTextures'''(GLsizei {{Parameter|n}}, const GLuint * {{Parameter|textures}}); ; n : Specifies the number of textures to be deleted. ; textures : Specifies an array of textures to be deleted. {{PageDescription}} '''_glDeleteTextures''' deletes {{Parameter|n}} textures named by the elements of the array {{Parameter...")
 
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'''_glDeleteTextures:''' delete named textures
{{DISPLAYTITLE:_glDeleteTextures}}
The '''_glDeleteTextures''' statement deletes named textures.




{{PageSyntax}}
{{PageSyntax}}
: '''_glDeleteTextures''' GLsizei {{Parameter|n}}, const GLuint {{Parameter|*textures}}


:  SUB _glDeleteTextures (BYVAL n AS LONG, textures AS _UNSIGNED LONG)


:  void '''_glDeleteTextures'''(GLsizei {{Parameter|n}}, const GLuint * {{Parameter|textures}});
{{PageParameters}}
 
* OpenGL is using its own set of variable types to describe its command parameters.
 
* Use the following table to find the respective QB64 [[Variable Types]].
; n
{{TextStart}}
: Specifies the number of textures to be deleted.
  '''OpenGL'''    |    '''C/C++'''        |        '''QB64'''
; textures
------------+------------------+----------------------
: Specifies an array of textures to be deleted.
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
{{TextEnd}}




{{PageDescription}}
{{PageDescription}}
 
* OpenGL's documentation is available in several places, so we won't reproduce it here for another time.
'''_glDeleteTextures''' deletes {{Parameter|n}} textures named by the elements of the array {{Parameter|textures}}. After a texture is deleted, it has no contents or dimensionality, and its name is free for reuse (for example by {{KW|_glGenTextures}}). If a texture that is currently bound is deleted, the binding reverts to 0 (the default texture).
* The full description for this command can be found at [https://docs.microsoft.com/en-us/windows/win32/opengl/gldeletetextures Microsoft Docs] and is also valid for QB64 usage.
 
'''_glDeleteTextures''' silently ignores 0's and names that do not correspond to existing textures.
 
 
{{PageErrors}}
 
{{KW|_GL_INVALID_VALUE}} is generated if {{Parameter|n}} is negative.
 
 
{{PageUseWith}}
 
{{KW|_glIsTexture}}




{{PageSeeAlso}}
{{PageSeeAlso}}
* [[_GL|SUB _GL]]
* [[_glAreTexturesResident]], [[_glBegin]], [[_glBindTexture]]
* [[_glEnd]], [[_glGenTextures]], [[_glGet]]
* [[_glGetTexParameter]], [[_glIsTexture]], [[_glPrioritizeTextures]]
* [[_glTexGen]], [[_glTexImage1D]], [[_glTexImage2D]]
* [[_glTexParameter]]


[[_GL|SUB _GL]]
{{KW|_glBindTexture}}, {{KW|_glGenTextures}}, {{KW|_glIsTexture}}


{{PageNavigation}}


{{PageCopyright}}
[[Category:Final]]

Revision as of 15:56, 14 July 2022

The _glDeleteTextures statement deletes named textures.


Syntax

_glDeleteTextures GLsizei n, const GLuint *textures


Parameters

  • OpenGL is using its own set of variable types to describe its command parameters.
  • Use the following table to find 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's 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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