OS_SpriteOp 30 (changes)

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Programmer's OS Reference SWI Manuals Calls

» Part OS_SpriteOp 15 – SWI Calls

» OS_SpriteOp 30 – Remove maskOS

OS_SpriteOp 30 – Remove mask

(SWI &2E)

Use

This call allows a mask to be removed from a sprite.

Notes

When used on a sprite with an alpha mask, the ‘wide mask’ flag will remain set in the sprite mode word. Therefore any subsequent call to OS_SpriteOp 29 will create a new alpha mask. If this is not intended then you must manually remove the flag after removing the mask.

If the sprite has no mask, this call has no effect.

See also OS_SpriteOp 38, which can be used to convert between different mask formats, or to transfer data to/from an alpha channel.

See also

• Format Of Sprite
• Format Of Sprite Area
• OS_SpriteOp
• OS_SpriteOp 29 - Create mask
• OS_SpriteOp 38 - Create/remove alpha