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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.
41 lines
1.3 KiB
Plaintext
41 lines
1.3 KiB
Plaintext
The {{KW|_SOURCE}} statement establishes the image SOURCE using a handle created by {{KW|_LOADIMAGE}} or {{KW|_NEWIMAGE}}.
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{{PageSyntax}}
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:{{KW|_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 {{KW|_NEWIMAGE}}.
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* If the handle is designated as 0, it refers to the current {{KW|SCREEN (statement)|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 (statement)|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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{{PageNavigation}} |