Indicates whether a given object number actually identifies an object.
FORTRAN (libfgl.a)
Int32 isobj(Int32 object)
LOGICAL FUNCTION ISOBJ(object) INTEGER*4 object
The isobj subroutine indicates whether a given object number actually identifies an object. The returned value is either True, if the object number is already in use, or False, if it is not.
Note: This editing subroutine itself cannot be added to a display list.
| object | Specifies the object identifier to test. |
| True | Object number is already in use. |
| False | Object number is not in use. |
This subroutine is part of GL in the AIXwindows Environment/6000 Version 1, Release 2 with AIXwindows/3D Feature.
| /usr/include/gl/gl.h | Contains C language constant and variable type definitions for GL. |
| /usr/include/gl/fgl.h | Contains FORTRAN constant and variable type definitions for GL. |
Returning a unique integer for use as an object identifier with the genobj subroutine.
Establishing the uniqueness of a tag number with the istag subroutine.
Creating an object with the makeobj subroutine.
AIX Graphics Library Overview and Creating Objects (Display Lists).