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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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6e01fc8dce
Added new _STRCMP and _STRICMP commands for quick string comparisons. Cleaned up QB64 to finish removing the QUI (quick user insert) code and folders. Altered UCASE and LCASE routines to be faster in some situations for us.
47 lines
1.9 KiB
Plaintext
47 lines
1.9 KiB
Plaintext
The '''_CLIP''' option is used in a QB64 graphics [[PUT (graphics statement)|PUT]] to allow placement of an image partially off of the screen.
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{{PageSyntax}}
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:{{KW|PUT (graphics statement)|PUT}} [{{KW|STEP}}](column, row), ''image''[, {{KW|_CLIP}}] [{XOR|PSET|AND|OR|PRESET}][, ''omitcolor'']]
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{{PageDescription}}
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* _CLIP should be placed immediately before the PUT action if used. XOR is default when not used.
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* The offscreen portions of the image will be the omit color.
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* {{KW|GET (graphics statement)|GET}} can get portions of the images offscreen in '''QB64'''.
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''Example:'' Placing an image partially or fully offscreen.
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{{CodeStart}}'' ''
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{{Cl|DIM}} mypic(500)
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{{Cl|SCREEN}} 13
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{{Cl|CLS}}
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{{Cl|CIRCLE}} (10,10),10
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{{Cl|GET (graphics statement)|GET}} (0,0)-(20,20), mypic(0)
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{{Cl|PRINT}} "This program puts an image off screen."
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{{Cl|PRINT}} "Select which option you'd like to try."
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{{Cl|PRINT}} "1 will produce an illegal function call."
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{{Cl|PRINT}} "1 is putting without _CLIP."
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{{Cl|PRINT}} "2 is putting with _CLIP PSET."
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{{Cl|PRINT}} "3 is putting with _CLIP XOR."
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{{Cl|PRINT}} "4 is putting with _CLIP PSET, 4."
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{{Cl|INPUT}} sel
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{{Cl|IF...THEN|IF}} sel = 1 {{Cl|THEN}} {{Cl|PUT (graphics statement)|PUT}} (-10, 10), mypic(0), PSET ' this causes an illegal function call
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{{Cl|IF...THEN|IF}} sel = 2 {{Cl|THEN}} {{Cl|PUT (graphics statement)|PUT}} (-10, 10), mypic(0), {{Cl|_CLIP}} PSET ' allows graphic to be drawn off-screen
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{{Cl|IF...THEN|IF}} sel = 3 {{Cl|THEN}} {{Cl|PUT (graphics statement)|PUT}} (-10, 10), mypic(0), {{Cl|_CLIP}} ' uses the default PUT XOR operation
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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
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{{Cl|END}} '' ''
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{{CodeEnd}}
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{{PageSeeAlso}}
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*{{KW|PUT (graphics statement)}}
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{{PageNavigation}} |