QT on windows?

[snorkel]

Hi,
Can I use QT on windows instead of the win32 widget set?
If so do I have to rebuild the IDE?

I am only thinking about this as I need a page control that can have close buttons on the tabs.
and from what I can see the QT widgetset allows this.

Thanks,

Snorkel

[Dibo]

Yes you can. I tried this long time ago. But notice, to build (and run) that application, you need provide some main QT libs with your application.
If you need close button only, maybe try Lazarus Custom Drawn Controls (http://wiki.freepascal.org/Lazarus_Custom_Drawn_Controls) ? You can mix it with standard component library (e.g adding only page control) Default style looks like from win 95 epoch, but there is windows xp style too, or you can just drawn own fancy tabs

[chris_c]

on a side note one thing that impressed me was running ldd on a lazarus generated app, sure it uses a whole bunch of libs but its about the same profile of library use as any other "normal" gtk application, what I was expecting was a separate library linkage for every component type that was used. I seem to remember Delphi (years ago - no idea what its like now) needing a whole bunch of DLL's depending on how many different component you used (not pretty)

[Leledumbo]

Can I use QT on windows instead of the win32 widget set?

Yes.

If so do I have to rebuild the IDE?

No, only LCL need to be rebuilt (should be automatic when you change LCLWidgetType macro).

Note that you need Qt4Pas dll for this to work.

[zeljko]

Can I use QT on windows instead of the win32 widget set?

Yes.

If so do I have to rebuild the IDE?

No, only LCL need to be rebuilt (should be automatic when you change LCLWidgetType macro).

Note that you need Qt4Pas dll for this to work.

But also he needs other Qt dll's which can be downloaded from qt.nokia.com

[Dibo]

Hmm. Generally, I never considered topic author solution but it seems interesting alternative for fpGUI or Custom Drawn Controls. For UI-crossplatform I always used solution: windows -> winapi widgetset, gnome -> gtk widgetset, kde -> qt widgetset. But using only QT on all OS sounds interesting. QT hello world in lazarus seems to need only basic QT libs to run. The only weakness are:
1. Size of deployed executable, but what it matter today
2. Performance (but what I read for example, GTK wrapper for lazarus is much slower than QT, because lazarus GTK is old and must be rewritten)

What we get:
1. Power of QT controls (but I don't know yet what libQT4Pas can do)
2. One look on all platforms
3. We can include webkit

Anyone tested this solution?

[Leledumbo]

Anyone tested this solution?

Yes, under Windows, all other toolkits but native win32/64 are slower. I guess this is because they need some kind of startup. The requirement of additional runtime libraries is also not really acceptable IMHO. They tend to use bigger memory as well. Under Linux with KDE, QT wins over GTK(2), especially in speed. Memory differs a little where GTK(2) wins.