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grumbachr

cross platform graphics

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I am developing a solution that needs to be compatible on all platforms. One thing I am running into is when switching between Mac and Windows some graphics elements don

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I created a bunch of buttons and saved them as PNG...

Used them in FM on my PC with no problems...gave my file

for testing to a friend that uses a MAC he had no comments or problems

with the buttons and graphics.

Dan

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Hi Al,

I did not have many buttons...so I never looked at size.

I used a little program called Crystal Button, I will fire the

software up and save the same button in various versions.

I will let you know if there is a noticible file size change

after dropping each version in my test file.

Dan

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Wow I did not think there would be this much change...

i created a new file with 1 field (global container) to hold the button image...

in each version of my test i put 1 button image directly on the layout &

in browse mode i copied & pasted the same image in the conatainer field.

Results:

Empty file -- 20kb

PNG graphic -- 40kb

JPG graphic -- 24kb

GIF graphic -- 28kb

I think the JPG graphic needs to decompress when in use, so it may slow a system down??!! but i'm not sure.

Both GIF & PNG offer a transparant backgroud

but i think PNG32 with alpha channel (transparant) is not supported

in Internet Explorer. Maybe a forum guru can confirm this!!

Dan

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Dan,

Thanks for the update. It is certainly interesting the changes in file size and load time. In the 50+ file system I have developed where I work I have used jpeg graphics for my global navigation bar at the top of the screen. I have noticed a slow down at times. I believe is in part due to higher network traffic and the nature of jpeg files. I do agree it would be nice to hear what our master gurus know. Chooper, Cobalt......and others what do you all have to say about this.

Al

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Hi,

PNG transparency does not work with Web Publishing (FM 7v3). Neither on Safari, nor on Explorer...

Tammo

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