Operator Reference

HALCON Operator Reference / Graphics / Window
ClassesClasses | | Operators

query_window_typeT_query_window_typeQueryWindowTypeQueryWindowTypequery_window_type (Operator)

query_window_typeT_query_window_typeQueryWindowTypeQueryWindowTypequery_window_type — Query all available window types.

Signature

query_window_type( : : : WindowTypes)

Herror T_query_window_type(Htuple* WindowTypes)

void QueryWindowType(HTuple* WindowTypes)

static HTuple HSystem::QueryWindowType()

static HTuple HInfo::QueryWindowType()

static void HOperatorSet.QueryWindowType(out HTuple windowTypes)

static HTuple HSystem.QueryWindowType()

static HTuple HInfo.QueryWindowType()

def query_window_type() -> Sequence[str]

Description

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

'X-Window'"X-Window""X-Window""X-Window""X-Window"

X-Window Version 11.

'WIN32-Window'"WIN32-Window""WIN32-Window""WIN32-Window""WIN32-Window"

Microsoft Windows.

'pixmap'"pixmap""pixmap""pixmap""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'"PostScript""PostScript""PostScript""PostScript"

Objects are output to a PostScript File.

Execution Information

  • Multithreading type: reentrant (runs in parallel with non-exclusive operators).
  • Multithreading scope: global (may be called from any thread).
  • Processed without parallelization.

Parameters

WindowTypesWindowTypesWindowTypeswindowTypeswindow_types (output_control)  string-array → HTupleSequence[str]HTupleHtuple (string) (string) (HString) (char*)

Names of available window types.

Result

query_window_typequery_window_typeQueryWindowTypeQueryWindowTypequery_window_type always returns 2 ( H_MSG_TRUE) .

Possible Predecessors

reset_obj_dbreset_obj_dbResetObjDbResetObjDbreset_obj_db

Module

Foundation

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