How to link an existing .exe to a DLL?

[babygal]

Hi,
Could you explain further?
My app.exe is compiled using MinGW and proj.dll is compiled using VS.
and I wish to link my app.exe with the proj.dll.(however, i wish to compile and link both using MinGW)
So am I doing it correctly now,or I need a proj.a to link with my app.exe?(by the way can VS output *.a file?)


bit confused *-)

[faldzip]

If you compile your app.exe with MinGW then all libraries you link to has to be .a
So you have to convert your proj.lib to proj.a (or as I said it can be libproj.a - not sure about it).
Search the net or forum to find how to do it. It was mentioned some days ago in some post here on QtCentre, AFAIR the tools are 'dlltool' and reimp or something like this.

[squidge]

It is difficult to link MVSC DLL to GCC executable by using static stub.

The easiest way would be to use QLibrary in this instance, then you don't need .a or .lib files, just the DLL.

[faldzip]

So another solution might be to use VisualStudio Express Edition and compile Qt with it :] (I don't remember if there is WindowsSDK or rather PlatformSDK needed for this)

[squidge]

That'll work, just remember that the Express editions don't support the Qt addin.

[babygal]

That'll work, just remember that the Express editions don't support the Qt addin.

Hi, What is Qt addin and what is it's purpose?

[squidge]

http://qt.nokia.com/developer/faqs/w...-studio-add-in

http://doc.trolltech.com/4.6/deployment-windows.html

[babygal]

Hi,, Which is the easiest method and how to do it?

[squidge]

Depends on the DLL complexity and your skill level. Read this entire thread, choose the one that you understand the most and choose that.

[faldzip]

That'll work, just remember that the Express editions don't support the Qt addin.

But you can have MSVC and use it in Qt Creator - that is the way I choose :] and you don't need any Qt Add-in
Nice developing with Qt connected with nice and completly Windows way to produce Windows application. I don't like MinGW as it looks like forcing applications compiled with Unix compiler to run on Windows - 1st thought: rather not comfortable and not efficient.

[squidge]

Which is why I use Visual Studio 2008. QtCreator is nice, but VS2008 with the plugins you are used to is much better. My full time job is software engineer, I use VS at work and work pays for the home VS license too, so it makes sense to me.

But of course the situation is different for each person. I'm not sure on the deployment licensing of VS express edition, but using the VS EE under QtCreator is a good choice for non-commercial work.

[babygal]

But you can have MSVC and use it in Qt Creator - that is the way I choose :] and you don't need any Qt Add-in
Nice developing with Qt connected with nice and completly Windows way to produce Windows application. I don't like MinGW as it looks like forcing applications compiled with Unix compiler to run on Windows - 1st thought: rather not comfortable and not efficient.

1. How to "have MVSC and use it in Qt Creator"?If I do it this way, compiling is done using VC or GCC?

[babygal]

So another solution might be to use VisualStudio Express Edition and compile Qt with it :] (I don't remember if there is WindowsSDK or rather PlatformSDK needed for this)

Hi , I don't know how to do this?Could you explain.