Edit per pixel frames vs Edit UIS1/2 frames?

In short: what is the difference between 'Edit per pixel frames' and 'Edit UIS1/2 frames'?

When you start a new skin, (SKS 11), and you go to 'Edit TitleBars and WindowFrames',
then there are two options to define the frame, 'Edit per pixel frames' and 'Edit UIS1/2 frames'.

Both of them use (different) images to define a frame.

I find this confusing because obviously,
the skin can only use one frame, so why are there then two definitions ?

skinstudio

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DaveRI

Join Date 09/2003

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I don't know all of the details, but a skin actually does or at least can use both sets of frames because some applications use the UIS frames. My ancient Excel2003 for example uses the per pixel frames for its main window and the UIS frames for the spreadsheet window when the spreadsheet isn't maximized within Excel.

The majority of the frames you see (Explorer, etc.) are the per pixel frames. The UIS frames don't support transparency through the frames in the way the per pixel frames do.

There is an option on WBConfig's Settings page to force the skins to use the UIS frames instead of the per pixel frames. If you like, you can apply a skin with a fair amount of transparency such as Diamond, then check the option and reapply the skin to see the difference.

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