ImageEn Forum

Profile Join Active Topics Forum FAQ

All Forums

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

View

UserName:

Password:

Format

Message

Check here to include your profile signature.
Check here to subscribe to this topic.

T O P I C R E V I E W
yogiyang	Posted - Nov 22 2018 : 08:45:24 Hello, I am trying to make selected area of a layer transparent. I found that there are two methods that we can use. 1. SetSelectedAreaAlpha 2. SetTransparentColors If anyone has tried this out I wanted to know as to which of these is faster? I am asking this because from my tests I cannot determine as to which is faster. TIA Yogi Yang
3 L A T E S T R E P L I E S (Newest First)
yogiyang	Posted - Nov 23 2018 : 05:47:28 Hello Nigel, You are correct! SetSelectedAreaAlpha is faster! Thanks for the suggestion. Yogi Yang
xequte	Posted - Nov 22 2018 : 20:32:35 Assuming the selection is already made then SetSelectedAreaAlpha should be faster as it operates on only the area that is selected, whereas SetTransparentColors processes the whole image. But try using TStopWatch and let us know your results. Nigel Xequte Software www.imageen.com
wesleybobato	Posted - Nov 22 2018 : 09:20:56 Hi Yang Yogi You can look at TStopWatch and do a test in Milliseconds and compare the results. http://docwiki.embarcadero.com/Libraries/Tokyo/en/System.Diagnostics.TStopwatch Kind regards.