isqueued Subroutine

GL3.2 for AIX: Graphics Library (GL) Technical Reference

isqueued Subroutine

Purpose

Indicates whether the specified device is enabled for queuing.

Libraries

Graphics Library

C (libgl.a)

FORTRAN (libfgl.a)

C Syntax

Int32 isqueued(Int16 device)

FORTRAN Syntax

LOGICAL FUNCTION ISQUEU(device)
INTEGER*4 device

Note: For FORTRAN users, this function accepts long integer parameters (INTEGER*4) when invoked from a FORTRAN program, although it accepts short integers when invoked from a C program. The C and FORTRAN syntax shown here reflect this difference.

Description

The isqueued subroutine indicates whether the specified device is enabled for queuing.

Note: This subroutine cannot be used to add to a display list.

Parameter

device

Specifies the identifier for the device you want to test (for example, MOUSEX or BPADX).

Return Values

True	Enabled for queuing.
False	Not enabled for queuing.

Example

The example C language program prompt.c uses the isqueued subroutine to determine whether the keyboard is enabled.

Implementation Specifics

This subroutine is part of GL in the AIXwindows Environment/6000 Version 1, Release 2 with AIXwindows/3D Feature.

Files

/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.
/usr/include/gl/device.h	Contains C language constant and variable type definitions for GL.
/usr/include/gl/fdevice.h	Contains FORTRAN constant and variable type definitions for GL.

Related Information

Enabling an input device for event queuing with the qdevice subroutine.

Reading the first entry in the event queue with the qread subroutine.

Disabling an input device for event queuing with the unqdevice subroutine.

AIX Graphics Library Overview, Controlling Queues and Devices, Using the Keyboard, and Querying the System.