The _ALLOWFULLSCREEN statement allows setting the behavior of the ALT+ENTER combo.
Syntax
_ALLOWFULLSCREEN [{_STRETCH _SQUAREPIXELS OFF _ALL}][, {_SMOOTH OFF _ALL}]
Description
- Calling the statement with no parameters enables all four possible full screen modes (and is the default state when a program is started): both _STRETCH (_SMOOTH and _OFF) and _SQUAREPIXELS (_SMOOTH and _OFF).
- Using _ALLOWFULLSCREEN _ALL, _ALL has the same effect.
- _ALLOWFULLSCREEN only affects the behavior of ALT+ENTER. The _FULLSCREEN statement is not bound by _ALLOWFULLSCREEN’s settings so all modes can be accessed programmatically.
- To limit just the mode but allow both _SMOOTH + _OFF antialiasing modes, pass just the first parameter: Example: _ALLOWFULLSCREEN _SQUAREPIXELS
- To allow multiple modes with _SMOOTH or _OFF as default, pass just the second parameter. Example: _ALLOWFULLSCREEN , _SMOOTH
- Any possible permutation of the parameters is allowed.
- With _ALLOWFULLSCREEN _OFF you can trap Alt+Enter manually in your program and reassign it. See example 2 below.
Availability
- Version 1.3 and up.
Example(s)
Allowing only one full-screen mode with square pixels and no anti-aliasing:
_ALLOWFULLSCREEN _SQUAREPIXELS, OFF
Disabling _FULLSCREEN with Alt+ENTER so the combo can be manually trapped:
DO
CLS
LOCATE 7
PRINT " - Press ALT+ENTER to test trapping the combo..."
PRINT " _ Press SPACEBAR to allow fullscreen again..."
k& = _KEYHIT
IF k& = 13 THEN
IF _KEYDOWN(100307) OR _KEYDOWN(100308) THEN
altEnter = altEnter + 1
END IF
ELSEIF k& = 32 THEN
fullscreenEnabled = NOT fullscreenEnabled
END IF
LOCATE 14
IF fullscreenEnabled THEN
_ALLOWFULLSCREEN _ALL, _ALL
altEnter = 0
PRINT "_ALLOWFULLSCREEN _ALL, _ALL"
LOCATE 18
PRINT "ALT+ENTER will trigger all four fullscreen modes now."
ELSE
_ALLOWFULLSCREEN OFF
PRINT "_ALLOWFULLSCREEN OFF"
END IF
IF altEnter THEN
LOCATE 18
PRINT "ALT+ENTER manually trapped"; altEnter; "times."
END IF
_DISPLAY
_LIMIT 30
LOOP