glIsTextureEXT(3G)	       OpenGL Reference		    glIsTextureEXT(3G)



NAME
     glIsTextureEXT - determine	if a name corresponds to a texture


C SPECIFICATION
     GLboolean glIsTextureEXT( GLuint texture )


PARAMETERS
     texture  A	value which might be the name of a texture.

DESCRIPTION
     glIsTextureEXT 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, glIsTextureEXT
     returns GL_FALSE.

     glIsTextureEXT is not included in display lists.

NOTES
     glIsTextureEXT is part of the EXT_texture_object extension.  See glIntro
     for more information about	using extensions.

ERRORS
     GL_INVALID_OPERATION is generated if glIsTextureEXT is executed between
     the execution of glBegin and the corresponding execution of glEnd.


MACHINE	DEPENDENCIES
     RealityEngine, RealityEngine2, and	VTX systems do not support texture
     name sharing.  Texture names are always local to the rendering context
     which was active at the time the names were created.  High	Impact and
     Maximum Impact systems do not currently support texture name sharing, but
     this will be fixed	in the next release.


SEE ALSO
     glBindTextureEXT, glDeleteTexturesEXT, glGenTexturesEXT, glGet,
     glGetTexParameter,	glTexImage1D, glTexImage2D, glTexImage3DEXT,
     glTexParameter.















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