<![CDATA[how i can compile my app with qt in 64 bits if i'm using 32 bits]]>Hi it's possible to compile my application in 64 bits if i'm using a operating system of 32 bits with Qt? thx in advance!

]]>https://forum.qt.io/topic/76723/how-i-can-compile-my-app-with-qt-in-64-bits-if-i-m-using-32-bitsRSS for NodeFri, 17 Apr 2026 00:22:32 GMTTue, 28 Feb 2017 22:03:21 GMT60<![CDATA[Reply to how i can compile my app with qt in 64 bits if i'm using 32 bits on Thu, 02 Mar 2017 05:18:01 GMT]]>@RIVOPICO I'm not talking about Visual Studio compiler, I know that it provides both.
I'm talking about Qt: if you want to build a 64bit app then you need a 64bit Qt version.
Nothing will happen with 32bit version if you install 64bit Qt version - you can as many Qt versions as you like/need.

]]>https://forum.qt.io/post/379273https://forum.qt.io/post/379273Thu, 02 Mar 2017 05:18:01 GMT<![CDATA[Reply to how i can compile my app with qt in 64 bits if i'm using 32 bits on Wed, 01 Mar 2017 23:29:09 GMT]]>@jsulm visual studio include both version's compiler i have.
when you say:
you can use Qt Maintenance Tool to install 64bit Qt for your VC++ version.

But i'm sure that visual studio support both version x32 and x64 bits. If i install with Qt Maintenance Tool what will happen with my version of 32 bits? Thanks in advance!

]]>https://forum.qt.io/post/379248https://forum.qt.io/post/379248Wed, 01 Mar 2017 23:29:09 GMT<![CDATA[Reply to how i can compile my app with qt in 64 bits if i'm using 32 bits on Wed, 01 Mar 2017 05:26:31 GMT]]>@RIVOPICO You need to use 64bit VC++ compiler and Qt built with same compiler. You can use Qt Maintenance Tool to install 64bit Qt for your VC++ version.

]]>https://forum.qt.io/post/379073https://forum.qt.io/post/379073Wed, 01 Mar 2017 05:26:31 GMT<![CDATA[Reply to how i can compile my app with qt in 64 bits if i'm using 32 bits on Wed, 01 Mar 2017 00:48:49 GMT]]>i'm using visual studio like compiler and support it but i can select the architecture in Qt or i must to use visual studio command line?

]]>https://forum.qt.io/post/379055https://forum.qt.io/post/379055Wed, 01 Mar 2017 00:48:49 GMT<![CDATA[Reply to how i can compile my app with qt in 64 bits if i'm using 32 bits on Tue, 28 Feb 2017 22:05:24 GMT]]>Hi,

It depends on the OS and whether it provides a cross-compiler that does 32 to 64bit which also means that you need to have Qt and all dependencies of it and your application in 64bit.

]]>https://forum.qt.io/post/379046https://forum.qt.io/post/379046Tue, 28 Feb 2017 22:05:24 GMT