2013 Khronos Group glObjectPtrLabel 3G glObjectPtrLabel label a a sync object identified by a pointer void glObjectPtrLabel void * ptr GLsizei length const char * label ptr A pointer identifying a sync object. length The length of the label to be used for the object. label The address of a string containing the label to assign to the object. glObjectPtrLabel labels the sync object identified by ptr. label is the address of a string that will be used to label the object. length contains the number of characters in label. If length is negative, it is implied that label contains a null-terminated string. If label is NULL, any debug label is effectively removed from the object. GL_INVALID_VALUE is generated if ptr is not a valid sync object. GL_INVALID_VALUE is generated if the number of characters in label, excluding the null terminator when length is negative, is greater than the value of GL_MAX_LABEL_LENGTH. glGet with argument GL_MAX_LABEL_LENGTH. glPushDebugGroup, glPopDebugGroup, glObjectLabel. Copyright 2013 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.