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_CLEARCOLOR (function)
Cory Smith edited this page Sep 1, 2022
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The _CLEARCOLOR (function) function returns the current transparent color of an image or page.
result& = _CLEARCOLOR (function) [Source_Handle&]
- If Source_Handle& is omitted, it is assumed to be the current _DEST write page.
- If Source_Handle& is an invalid handle value(-1), then an ERROR Codes is returned.
- In color modes using a palette, the index of the current transparent color value is returned, or -1 if no transparent color is set.
- In 32-bit color modes, zero is returned.
- Returns the color that currently is transparent, or if no color is transparent -1 without error.
- A _CLEARCOLOR statement can set the transparent color of an image or screen.
- NOTE: Default 32 bit backgrounds are clear black or _RGBA(0, 0, 0, 0). Use CLS to make the black opaque.
- _CLEARCOLOR (sets a clear color)
- _SETALPHA (sets color transparency)
- Images