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43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
{{DISPLAYTITLE:_SOURCE}}
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The [[_SOURCE]] statement establishes the image SOURCE using a handle created by [[_LOADIMAGE]] or [[_NEWIMAGE]].
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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 {{KW|LONG}} integer value from the {{KW|_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 present one.
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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 {{KW|_DEST}} to define the image to draw on. Draw a pixel then set the source to 'a' and use {{KW|POINT}} to show what color is in that position. White (15) and is the color set with {{KW|PSET}}. Use {{KW|_DEST}} 0 for the screen to display the results.
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*''See Example:''
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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}} |