glIsVertexArray — determine if a name corresponds to a vertex array object
GLboolean glIsVertexArray( | GLuint array); |
glIsVertexArray returns GL_TRUE if array is currently the name of a renderbuffer object. If renderbuffer is zero, or if array is not the name of a renderbuffer object, or if an error occurs, glIsVertexArray returns GL_FALSE. If array is a name returned by glGenVertexArrays, by that has not yet been bound through a call to glBindVertexArray, then the name is not a vertex array object and glIsVertexArray returns GL_FALSE.
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