Platform |
Win32, x64 |
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Purpose |
To pack 8-bit colour values plus opacity into a 32-bit integer. |
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Syntax |
INTEGER FUNCTION nARGB@(ALPHA,RED,GREEN,BLUE) |
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Description |
'ALPHA' is the opacity and RED, GREEN and BLUE are the colour intensities. All values are assumed to be in the range 0-255 inclusive. This function returns the RGB@ value and has the side effect of storing the opacity for the next call to a drawing routine. This temporary value is reset to the default opacity after its first use and this value over-rides the default opacity for the current drawing surface. When nARGB@ is called as an argument of a graphics routine then the stored opacity will relate to the current call. |
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Return value |
Returns the packed RGB values. |
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Notes |
Introduced with FTN95 7.00. |
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See also |