RESIZE (function): Difference between revisions
Jump to navigation
Jump to search
Navigation:
Main Page with Articles and Tutorials
Keyword Reference - Alphabetical
Keyword Reference - By usage
Report a broken link
No edit summary |
No edit summary |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 8: | Line 8: | ||
{{PageDescription}} | {{PageDescription}} | ||
* The function returns -1 if a program screen resize was attempted by the user. | * The function returns -1 if a program screen resize was attempted by the user. | ||
* After the function returns -1, [[_RESIZEWIDTH]] and [[_RESIZEHEIGHT]] can return the new requested dimensions in pixels. | * After the function returns -1, [[_RESIZEWIDTH]] and [[_RESIZEHEIGHT]] can return the new requested dimensions in pixels. | ||
* The [[$RESIZE]]:ON [[metacommand]] must be used so the program is created with a user resizable window. | * The [[$RESIZE]]:ON [[metacommand]] must be used so the program is created with a user resizable window. | ||
{{PageAvailability}} | |||
* '''Version 1.000 and up'''. | * '''Version 1.000 and up'''. | ||
| Line 48: | Line 48: | ||
{{PageSeeAlso}} | {{PageSeeAlso}} | ||
* [[$RESIZE]] | * [[$RESIZE]] | ||
* [[_RESIZE]] | * [[_RESIZE]] | ||
* [[_RESIZEWIDTH]], [[_RESIZEHEIGHT]] | * [[_RESIZEWIDTH]], [[_RESIZEHEIGHT]] | ||
{{PageNavigation}} | {{PageNavigation}} | ||
Latest revision as of 21:27, 2 February 2023
The _RESIZE function returns true (-1) when a user has attempted to resize the program window and $RESIZE:ON has allowed it.
Syntax
- IF _RESIZE THEN rx& = _RESIZEWIDTH: ry& = _RESIZEHEIGHT
Description
- The function returns -1 if a program screen resize was attempted by the user.
- After the function returns -1, _RESIZEWIDTH and _RESIZEHEIGHT can return the new requested dimensions in pixels.
- The $RESIZE:ON metacommand must be used so the program is created with a user resizable window.
Availability
- Version 1.000 and up.
Examples
Example: Resize the current screen image according to user's request.
$RESIZE:ON s& = _NEWIMAGE(300, 300, 32) SCREEN s& bee& = _LOADIMAGE("qb64_trans.png") 'any image DO IF _RESIZE THEN oldimage& = s& s& = _NEWIMAGE(_RESIZEWIDTH, _RESIZEHEIGHT, 32) SCREEN s& _FREEIMAGE oldimage& END IF CLS 'Center the QB64 bee image: x = _WIDTH / 2 - _WIDTH(bee&) / 2 y = _HEIGHT / 2 - _HEIGHT(bee&) / 2 _PUTIMAGE (x, y), bee& _DISPLAY _LIMIT 30 LOOP |
See also