Make PNG Image Transparent as Original

[alukindo]

Hi: The original images are transparent. However, when I place them on Treeview nodes they take-on a white background. Can I do anything to keep the images transparent?. Notice the selected row.

A.L.

[JustinThomas]

I just tried this on LabVIEW 8.6 and am able to display the symbols correctly. The transparent images are displayed correctly. See attached file

How are you reading your png files?

Also which version of LabVIEW are you using?

[alukindo]

Hi Justin: I am using version 8.6 as well. I have attached the code that I am using. The VI shows that my images are read-in as 8-bit ones. I know the newer 8.6 VI for reading images has a transparency threshold but does not seem to make a difference in my case. Are your images 8-bit or ?

Anthony L.

Hi Justin: Thought that I should also include samples of my images. Here are two PNG files with transparency.

Thanks Anthony L.

[Cool-LV]

Hi Justin: I am using version 8.6 as well. I have attached the code that I am using. The VI shows that my images are read-in as 8-bit ones. I know the newer 8.6 VI for reading images has a transparency threshold but does not seem to make a difference in my case. Are your images 8-bit or ?

..............

Hi, I think this is the focal cause, PNG file is 32-bit, alpha channal, R, G, and B.

[JustinThomas]

Yes my images are 32 bit and I did try with the images you posted. I get the same behaviour as you do

[Cool-LV]

Yup, two solutions

1. use 32-bit png image

2.use create mask.vi, see attachment.