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error 404 srcOr | revDocs | RunRev
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Product Edition
Version
srcOr
Basics
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Type
Keyword
Syntax
Introduced
1.0
Environment
Desktop, Web and Server
Platform Support
Windows,Linux
Security
None required
Summary
Specifies one of the transfer modes that can be used with the ink property.
Examples

set the ink of control 11 to srcOr

Additional Comments
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Use the srcOr keyword to make the dark-colored parts of an object transparent.

Comments:

The ink property determines how an object's colors combine with the colors of the pixels underneath the object to determine how the object's color is displayed.

When the srcOr transfer mode is used, Revolution performs a bitOr operation on each component of the object color with the corresponding component of the color under the object.

Each component of the resulting color is equal to the result of this expression:

object component bitOr background component

The effect is that the darker an object is, the more transparent it is. Black parts of an object are completely transparent, and white parts are completely opaque.

For example, suppose an object's color is 45,0,255, and the color of the pixels under the object is 20,45,100. If the srcOr transfer mode is used, the object's displayed color is 61,0,255 (the decimal equivalent).

The srcOr mode can be used only on Unix and Windows systems. On Mac OS systems, objects whose ink property is set to this mode appear as though their ink were set to srcCopy.

User Comments
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