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Sets alpha for drawings.
Component | Version | macOS | Windows | Linux | Server | iOS SDK |
DynaPDF | 3.1 | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
Parameter | Description | Example |
---|---|---|
The PDF reference returned from DynaPDF.New. | ||
FillAlpha | The new alpha between 0.0 and 1.0. Value of -1 will not change fill alpha. | 0.5 |
StrokeAlpha | The new alpha between 0.0 and 1.0. Value of -1 will not change stroke alpha. | 0.5 |
Returns OK or error message.
See also SetAlpha function in DynaPDF manual.
Make all drawings 50% transparent:
MBS( "DynaPDF.SetAlpha"; $PDF; 0.5; 0.5 )
Make just lines 50% transparent and don't change fill transparency:
MBS( "DynaPDF.SetAlpha"; $PDF; -1; 0.5 )
Make fill transparency 50%, so images draw half transparent:
MBS( "DynaPDF.SetAlpha"; $PDF; 0.5; -1 )
This function checks for a license.
Created 18th August 2014, last changed 27th July 2018