18.4.1 Functions Defined in Module fl

Module fl defines the following functions. For more information about what they do, see the description of the equivalent C function in the FORMS documentation:

make_form(type, width, height)
Create a form with given type, width and height. This returns a form object, whose methods are described below.

The standard FORMS main loop. Returns a Python object representing the FORMS object needing interaction, or the special value FL.EVENT.

Check for FORMS events. Returns what do_forms() above returns, or None if there is no event that immediately needs interaction.

Set the event callback function.

set_graphics_mode(rgbmode, doublebuffering)
Set the graphics modes.

Return the current rgb mode. This is the value of the C global variable fl_rgbmode.

show_message(str1, str2, str3)
Show a dialog box with a three-line message and an OK button.

show_question(str1, str2, str3)
Show a dialog box with a three-line message and YES and NO buttons. It returns 1 if the user pressed YES, 0 if NO.

show_choice(str1, str2, str3, but1[, but2[, but3]])
Show a dialog box with a three-line message and up to three buttons. It returns the number of the button clicked by the user (1, 2 or 3).

show_input(prompt, default)
Show a dialog box with a one-line prompt message and text field in which the user can enter a string. The second argument is the default input string. It returns the string value as edited by the user.

show_file_selector(message, directory, pattern, default)
Show a dialog box in which the user can select a file. It returns the absolute filename selected by the user, or None if the user presses Cancel.

These functions return the directory, pattern and filename (the tail part only) selected by the user in the last show_file_selector() call.

qenter(dev, val)
tie(button, valuator1, valuator2)
These functions are the FORMS interfaces to the corresponding GL functions. Use these if you want to handle some GL events yourself when using fl.do_events(). When a GL event is detected that FORMS cannot handle, fl.do_forms() returns the special value FL.EVENT and you should call fl.qread() to read the event from the queue. Don't use the equivalent GL functions!

See the description in the FORMS documentation of fl_color(), fl_mapcolor() and fl_getmcolor().

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