TTrayIcon transparentcy
lazarus / 1-Linux

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tech-pro · 2008-07-17 11:56

What's the trick to getting tray icons to display with transparent
backgrounds so the task bar color shows through? I'm running KDE and
Laz/LCL are compiled for GTK2.

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felipemdc · 2008-07-17 14:03

Where do you load your icon image from? Make sure it has an Alpha
channel and it is activated.

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tech-pro · 2008-07-17 14:33

It is a Windows .ico file. I am loading it from the project folder, as
in the TTrayIcon example, since I had problems when loading it into
the component at design time. It does have a transparency mask, and
shows up with the transpatrent background in the preview pane of the
file manager.

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felipemdc · 2008-07-18 14:57

Please submit a bug report with a test project and specify your linux
distribution, lazarus version, fpc version, etc.

There were some recent bitmap changes which caused some trouble in
transparency handling.

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tech-pro · 2008-07-18 22:12

Yes, I just reported an issue with bitmap glyphs in TSpeedButtons in
the latest releases not showing transparency. But I was using the
0.9.24 release so I don't think it is the result of any recent
changes.

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tech-pro · 2008-07-18 22:13

Quote from: "tech-pro"Yes, I just reported an issue with bitmap glyphs
in TSpeedButtons in the latest releases not showing transparency. But
I was using the 0.9.24 release so I don't think it is the result of
any recent changes.  It's actually reproducible using the trayicon
example program included in Lazarus, you just need to substitute an
icon that has transparency.