Name

PQWKT − Returns workstation transformation information. 

Operating States: PHOP, WSOP, ∗, ∗
PHIGS standard function
 

Syntax

PQWKT (WKID, ERRIND, TUS, RWINDO, CWINDO, RVIEWP, CVIEWP)

Argument          Data Type      Access    Description
---------------------------------------------------------------------------
WKID              Integer        Read      Workstation identifier
ERRIND            Integer        Write     Error indicator
TUS               Integer        Write     Workstation transformation
                                           update state
RWINDO(4)         Array of       Write     Requested workstation window,
                  reals                    in normalized projection
                                           coordinates (RWXMIN, RWXMAX,
                                           RWYMIN, RWYMAX)
CWINDO(4)         Array of       Write     Current workstation window,
                  reals                    in normalized projection
                                           coordinates (CWXMIN, CWXMAX,
                                           CWYMIN, CWYMAX)
RVIEWP(4)         Array of       Write     Requested workstation viewport,
                  reals                    in device coordinates (RVXMIN,
                                           RVXMAX, RVYMIN, RVYMAX)
CVIEWP(4)         Array of       Write     Current workstation viewport,
                  reals                    in device coordinates (CVXMIN,
                                           CVXMAX, CVYMIN, CVYMAX)
---------------------------------------------------------------------------

Constants

 
Defined Argument      Constant       Description
---------------------------------------------------------------------------
TUS                   PNPEND         No update pending
                      PPEND          Update pending
---------------------------------------------------------------------------

Description

PQWKT queries the workstation state list and returns values for the following:

•Workstation transformation update state

•Requested workstation window limits in normalized projection coordinate points

•Current workstation window limits in normalized projection coordinate points

•Requested workstation viewport limits in device coordinates

•Current workstation viewport limits in device coordinates

If an application requests a workstation transformation change but Digital PHIGS does not provide it by the time the application calls this function, the workstation transformation update state is PPEND. 

See Also

PQWKT3
PSWKV
PSWKW