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''Example:'' Placing an image partially or fully offscreen. | ''Example:'' Placing an image partially or fully offscreen. | ||
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{{Cl|DIM}} mypic(500) | {{Cl|DIM}} mypic(500) | ||
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{{Cl|IF...THEN|IF}} sel = 4 {{Cl|THEN}} {{Cl|PUT (graphics statement)|PUT}} (-10, 10), mypic(0), {{Cl|_CLIP}} PSET, 4 ' doesn't draw red pixels | {{Cl|IF...THEN|IF}} sel = 4 {{Cl|THEN}} {{Cl|PUT (graphics statement)|PUT}} (-10, 10), mypic(0), {{Cl|_CLIP}} PSET, 4 ' doesn't draw red pixels | ||
{{Cl|END}} | {{Cl|END}} | ||
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Revision as of 22:55, 16 June 2022
The _CLIP option is used in a QB64 graphics PUT to allow placement of an image partially off of the screen.
Syntax
Description
- _CLIP should be placed immediately before the PUT action if used. XOR is default when not used.
- The offscreen portions of the image will be the omit color.
- GET can get portions of the images off screen in QB64.
Examples
Example: Placing an image partially or fully offscreen.
DIM mypic(500) SCREEN 13 CLS CIRCLE (10,10),10 GET (0,0)-(20,20), mypic(0) PRINT "This program puts an image off screen." PRINT "Select which option you'd like to try." PRINT "1 will produce an illegal function call." PRINT "1 is putting without _CLIP." PRINT "2 is putting with _CLIP PSET." PRINT "3 is putting with _CLIP XOR." PRINT "4 is putting with _CLIP PSET, 4." INPUT sel IF sel = 1 THEN PUT (-10, 10), mypic(0), PSET ' this causes an illegal function call IF sel = 2 THEN PUT (-10, 10), mypic(0), _CLIP PSET ' allows graphic to be drawn off-screen IF sel = 3 THEN PUT (-10, 10), mypic(0), _CLIP ' uses the default PUT XOR operation IF sel = 4 THEN PUT (-10, 10), mypic(0), _CLIP PSET, 4 ' doesn't draw red pixels END |
See also