glIsTexture — determine if a name corresponds to a texture
GLboolean glIsTexture( | GLuint | texture) ; |
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
.
A name returned by glGenTextures, but not yet associated with a texture by calling glBindTexture, is not the name of a texture.
GL_INVALID_OPERATION
is generated if glIsTexture
is executed
between the execution of glBegin and the corresponding
execution of glEnd.
glBindTexture, glCopyTexImage1D, glCopyTexImage2D, glDeleteTextures, glGenTextures, glGet, glGetTexParameter, glTexImage1D, glTexImage2D, glTexImage3D, glTexParameter
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.