Returns a unique integer for use as a tag.
FORTRAN (libfgl.a)
Int32 gentag( )
INTEGER*4 FUNCTION GENTAG
The gentag subroutine generates a unique 31-bit integer number for use as a tag. Tags must be unique within an object. Although the gentag subroutine generates unique tags, if a tag is defined later with the same value, the first tag is lost.
The istag subroutine can affirm the uniqueness of a tag number.
Note: This editing subroutine itself cannot be added to a display list.
A unique 31-bit integer for use as a tag.
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. |
Deleting tags from a display list with the deltag subroutine.
Returning a unique integer for use as an object identifier with the genobj subroutine.
Establishing the uniqueness of a tag with the istag subroutine.
Marking a location in a display list with the maketag subroutine.
AIX Graphics Library Overview and Creating Objects (Display Lists).