Hi,

I'm trying to test the Qt Interface under win32.

I've got the intf binding (1.72) and QtCore.dll and QtGui.dll version 4.6.0 but i got an error loading the compiled app:

Original message (Brazillian)
"N?o foi poss?vel localizar o ponto de entrada do procedimento _ZN7QWidget17setAccessibleNameERK7QString na biblioteca de v?nculo din?mico QtGui4.dll."

Translate (Try)
"Could not find method entry point
_ZN7QWidget17setAccessibleNameERK7QString dynamic "something" QtGui4.dll."

Can someone point to a location where i can download a Lazarus compatible qt dll?

Using Lazarus 0.9.29 r22953 FPC 2.4.0 i386-win32-win32/win64

Luiz

I'm successfully using 4.6.0 and 1.72 dll.
QtCore.dll and QtGui.dll aren't enough.
You must have QtCore, QtGui, QtNetwork, QtWebKit, mingw10.dll, some_libc_.dll (cannot remember exact name now - not on windows), and I think that I'm using also QtXmlPatterns. Conclusion: you are missing some 4.6.0 dll or you have mismatched dll's (look at PATH env variables).

zeljko

Under win32?

QtCore.dll and QtGui.dll aren't enough. You must have QtCore, QtGui, QtNetwork, QtWebKit, mingw10.dll, some_libc_.dll (cannot remember exact name now - not on windows), and I think that I'm using also QtXmlPatterns.

QtWebKit is used (required) by LCL?

Conclusion: you are missing some 4.6.0 dll

The files that i have are QtCore, QtGui and mingw10. I found them in a program that uses Qt under win32. These are the only required files for that program and also for others programs based in Qt.

or you have mismatched dll's (look at PATH env variables).

I looked in the path and no conflict files

BTW: In Qt page i only found the option to download the entire dev files (>200MB). An overkill just to get the runtime files.

Luiz

Yes, Webkit is used too, which drags in many of the other Qt libraries. QtGui and QtCore alone do not have any other dependencies on Qt libraries.

On Mac, the Qt4 frameworks are about 100MB. For Linux this may not be a problem if Qt comes pre-installed and is used by other apps, but it does seem a bit excessive on OS X and Windows.

Win API is a low-level C interface, but on Mac Cocoa is a high-level GUI framework. So that means high-level LCL wrapping high-level Qt wrapping high-level Cocoa.

Thanks.

-Phil

Phil Hess wrote

Yes, Webkit is used too, which drags in many of the other Qt libraries.

This (webkit support) could be provided as a separate package to minimize LCL-Qt requirements

QtGui and QtCore alone do not have any other dependencies on Qt libraries.

Most of win32 Qt applications i know use only those. Earlier, i thought that LCL-Qt/win32 requirement would be similar.

On Mac, the Qt4 frameworks are about 100MB. For Linux this may not be a problem if Qt comes pre-installed and is used by other apps, but it does seem a bit excessive on OS X and Windows.

It's sad. This can be an obstacle to Qt usage outside Linux

Win API is a low-level C interface, but on Mac Cocoa is a high-level GUI framework. So that means high-level LCL wrapping high-level Qt wrapping high-level Cocoa.

Good catch

Luiz

I believe that originally only qtcore and qtgui were required for LCL-Qt, but the list has grown over time. Qt is starting to look like .NET/Mono in its all-encompassing, everything-but-the-kitchen-sink approach, as well as in its size (the entire Mono framework on OS X is only 200MB).

Thanks.

-Phil

Phil Hess wrote

I believe that originally only qtcore and qtgui were required for LCL-Qt, but the list has grown over time. Qt is starting to look like .NET/Mono in its all-encompassing, everything-but-the-kitchen-sink approach, as well as in its size (the entire Mono framework on OS X is only 200MB).

No it's not. Ppl. want webkit so that's the reason why we need QtNetwork + QtWekKit (instead of QtCore + QtGui).
There was already some questions about splitting C bindings into it's packages so:
libqt4intf-core is for QtCore
libqt4intf-gui is for QtGui
libqt4intf-network is for QtNetwork
etc etc
That will fix problems and I would like it so, but who will make such C bindings (for all lcl supported platforms !) ? Any volonteers here ? ;)

zeljko

Luiz Americo Pereira Camara wrote

Under win32?

Yes, winXP SP2

Yes

That's not enough with bindings 1.72.

well, I cannot help you here :)

zeljko

zeljko wrote

> QtWebKit is used (required) by LCL? Yes

What is it used for in the LCL?

for nothing, but it's in bindings (QWebPage, QNetworkXXX etc)

zeljko wrote

> What is it used for in the LCL? for nothing, but it's in bindings (QWebPage, QNetworkXXX etc)

Then it's pretty clear that it would be a good idea to split the binding dll.

Den Jean?

But if there will be any splitting, then core & gui should be splitted too (in separate dll's , so's or dylib's ... whatever).