Qt windows ssl support

Thus, ssl related code such as QSslSocket will be compiled without problem. The commands are:. You may find this method to enable ssl only needs the openssl header files, not openssl libs or dlls. In fact no code is copied from openssl libs to Qt5Network. You can build Qt5Network. The load of Qt5Network. Your project using Qt5Network. But if your project uses ssl functions, you need to copy the openssl dlls libcrypto-version-x How is it possible?

Because qt source code do not use the openssl function names directly, it does not need to link against the openssl libs to resolve the names. In fact, the openssl functions take pointers as their parameters and return value. It actually has no need of the openssl headers. Just forward declaring the openssl types of structures is enough to build Qt5Network. The result is you must get the openssl headers to build qt with ssl support, while the ideal situation is that you do not need any openssl stuff to build qt with ssl support, and only need the two openssl dlls to run your app that is linked against the ssl enabled qt libs.

You may have used the function QSslSocket::supportsSsl to check the ssl support in runtime. This function also tries to load the openssl dlls and returns true if succeeds. The second method to add ssl support for qt build is to link the openssl lib to Qt5Network. Then you should gareentee libs. If you are developing a 32 bit application, you should use the 32 bit openssl dlls. A minor difference between the openssl version Qt is dependent on and the openssl version you install does not matter.

For example, you can install openssl 1. What matters is the dll name must match. A tricky part is where to download the openssl dlls for Windows 10, 8, 7,xp, etc. The most famous website you can download the openssl for Window is slproweb , where you can download both 32bit and 64bit versions of the dlls.

However, shipping the dlls with your program may bring you the trouble of a deployment problem. Without msvcr It will load one with a different suffix letter bug fix version increment. It did for me. Dasun Dasun 3, 1 1 gold badge 26 26 silver badges 38 38 bronze badges. I did what you say, cleaned, rebuilt and still it it's false — Petr. What is the exact qt Version you use? It worked fine in Qt 5. Did you add network module in your project file? Sometimes qt does't seems to udnerstand that we have changed the project file.

And yes I did clean all, ran qmake and make, still it doesn't work in windows. Btw I am using mingw to compile — Petr. May be it is a MinGW related issue. I gave up MinGW due to lack of Angle support. Show 1 more comment. As you figured out already, you were missing dlls.

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