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46 lines
1.3 KiB
Plaintext
46 lines
1.3 KiB
Plaintext
{{DISPLAYTITLE:_SOURCE}}
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The [[_SOURCE]] statement establishes the image SOURCE using a handle created by [[_LOADIMAGE]], [[_NEWIMAGE]] or [[_COPYIMAGE]].
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{{PageSyntax}}
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: [[_SOURCE]] {{Parameter|handle&}}
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{{PageDescription}}
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* The handle is a [[LONG]] integer value from the [[_SOURCE (function)|_SOURCE]] function or a handle created by [[_NEWIMAGE]].
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* If the handle is designated as 0, it refers to the current [[SCREEN]] image.
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* A source image can only supply information to a program. [[POINT]] and [[GET (graphics statement)|GET]] might require a source other than the one currently active.
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{{PageExamples}}
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{{CodeStart}} '' ''
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{{Cl|SCREEN}} 13
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a = {{Cl|_NEWIMAGE}}(320,200,13)
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{{Cl|_DEST}} a
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{{Cl|PSET}} (100, 100), 15
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{{Cl|_SOURCE}} a
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{{Cl|_DEST}} 0
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{{Cl|PRINT}} {{Cl|POINT}}(100, 100) '' ''
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{{CodeEnd}}
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{{OutputStart}}
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15
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{{OutputEnd}}
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: ''Explanation:'' Create a new image with handle 'a', then use [[_DEST]] to define the image to draw on. Draw a pixel then set the source to 'a' and use [[POINT]] to show what color is in that position. White (15) and is the color set with [[PSET]]. Use [[_DEST]] 0 for the screen to display the results.
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===More examples===
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See the examples in:
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* [[Bitmaps]]
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* [[SAVEIMAGE]]
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* [[SaveIcon32]]
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{{PageSeeAlso}}
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* [[_DEST]]
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* [[_SOURCE (function)]]
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* [[POINT]], [[GET (graphics statement)]]
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{{PageNavigation}}
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