set_window_type — Specify a window type.
set_window_type( : : WindowType : )
set_window_type determines on which type of output device the output is going to be displayed. This specification is going to be used by the operator open_window while opening the windows. You may open different windows on different types of output devices. Therefore you have to specify the wanted type before opening. You may request the available types of output devices by calling the operator query_window_type. Possible values are:
X-Window Version 11.
Windows are not displayed, but managed in memory only. In this manner you may port HALCON programs to computers without graphical display.
Objects are output to a PostScript File.
Default for current platform.
A useful usage of set_window_type could be the development of machine independent programs.
Name of the window type which has to be set.
Default value: 'X-Window'
List of values: 'Cocoa', 'PostScript', 'WIN32-Window', 'X-Window', 'pixmap', 'system_default'
If the type of the output device is available, then set_window_type returns 2 (H_MSG_TRUE). If necessary an exception is raised.
open_window, open_textwindow, query_window_type, get_window_type