glGenTextures function

Article
12/11/2020

The glGenTextures function generates texture names.

Syntax

void WINAPI glGenTextures(
   GLsizei n,
   GLuint  *textures
);

Parameters

n: The number of texture names to be generated.
textures: A pointer to the first element of an array in which the generated texture names are stored.

Return value

This function does not return a value.

Error codes

The following error codes can be retrieved by the glGetError function.

Name	Meaning
GL_INVALID_VALUE	n was a negative value.
GL_INVALID_OPERATION	The function was called between a call to glBegin and the corresponding call to glEnd.

Remarks

The glGenTextures function returns n texture names in the textures parameter. The texture names are not necessarily a contiguous set of integers, however, none of the returned names can have been in use immediately prior to calling the glGenTextures function. The generated textures assume the dimensionality of the texture target to which they are first bound with the glBindTexture function. Texture names returned by glGenTextures are not returned by subsequent calls to glGenTextures unless they are first deleted by calling glDeleteTextures.

You cannot include glGenTextures in display lists.

Note

The glGenTextures function is only available in OpenGL version 1.1 or later.

The following function retrieves information related to glGenTextures:

glIsTexture

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Gl.h
Library	Opengl32.lib
DLL	Opengl32.dll