glistexture(3)
NAME
glIsTexture - determine if a name corresponds to a texture
C SPECIFICATION
GLboolean glIsTexture( GLuint texture )
PARAMETERS
texture Specifies a value that may be the name of a texture.
DESCRIPTION
glIsTexture returns GL_TRUE if texture is currently the name of a texture. If texture is zero, or is a non-zero value that is not currently
the name of a texture, or if an error occurs, glIsTexture returns
GL_FALSE.
NOTES
glIsTexture is available only if the GL version is 1.1 or greater.
ERRORS
GL_INVALID_OPERATION is generated if glIsTexture is executed between the execution of glBegin and the corresponding execution of glEnd.