query_window_typeT_query_window_typequery_window_typeQueryWindowTypeQueryWindowType (Operator)

Name

query_window_typeT_query_window_typequery_window_typeQueryWindowTypeQueryWindowType — Query all available window types.

Signature

Description

query_window_typequery_window_typequery_window_typeQueryWindowTypeQueryWindowType returns a tupel which contains all devices or software systems, respectively, which are used to display image objects. You may use query_window_typequery_window_typequery_window_typeQueryWindowTypeQueryWindowType usefully while developing machine independent programs. Possible values are:

'X-Window'

X-Window Version 11.

'pixmap'

Windows are not displayed, but managed in memory. In this manner it is possible to port HALCON programs to computers without graphical display.

'PostScript'

Objects are output to a PostScript File.

Parallelization

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: local (may only be called from the same thread in which the window, model, or tool instance was created).
• Processed without parallelization.

Parameters

Result

query_window_typequery_window_typequery_window_typeQueryWindowTypeQueryWindowType always returns 2 (H_MSG_TRUE).

Possible Predecessors

reset_obj_dbreset_obj_dbreset_obj_dbResetObjDbResetObjDb

Module

Foundation