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- MINGW FOR WINDOWS HOW TO
- MINGW FOR WINDOWS INSTALL
- MINGW FOR WINDOWS CODE
- MINGW FOR WINDOWS FREE
- MINGW FOR WINDOWS WINDOWS
MINGW FOR WINDOWS WINDOWS
These DLL's, however, are installed with Windows and do not need to be deployed with the application. However, the static executable file of the application still references the Windows DLL's such as kernel32.dll or user32.dll.
MINGW FOR WINDOWS INSTALL
When deploying a dynamic version of the application, you have to install all required Qt DLL's with the application and the overall size of all these DLL's is larger than the static application.
MINGW FOR WINDOWS CODE
However, if your application has only one executable, the total deployed size is smaller since only the Qt code which is actually used is linked. The static executable file of the application is bigger than the dynamic one since all used Qt code is copied into the executable.But you cannot both ask for a static environment and for a dynamic loading of your own DLL's. The application cannot use a dynamic modular approach using plugins.
MINGW FOR WINDOWS FREE
While you are probably safe if your application is distributed according to the terms of a recognized free and open-source license, you should definitely check the licensing issue for proprietary or closed-source applications. There are licensing issues in distributing applications embedding Qt code in a static link.Be sure to check that your application complies with these constraints before going further. Second, it is probably impossible to build a static version of Qt Creator because of the lack of support for plugins in a static environment.Īlthough building a static version of your application makes it easier to deploy, there are some restrictions in a static environment. First, releasing a new version of an application is typically a task that you automate using a script and there is no need for GUI tools at this stage.
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There are at least two reasons for not building static versions of the GUI tools. The static environment should only be compiled to contain the Qt command line tools.
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The static environment should only be used to release the deployment version of the application, after it has been fully developed and debugged using the dynamic environment. The installation is straightforward, everything is here, well integrated, working like a charm. In addition to the Qt command line tools (qmake, moc, uic, lupdate, lrelease, etc.), it contains the high-level GUI tools such as Qt Creator, Assistant, Linguist, etc. The pre-built dynamic environment shall be used for development and debugging.
MINGW FOR WINDOWS HOW TO
This article describes how to build a static version of Qt in a MinGW environment. The two environments are incompatible and cannot be mixed. On Windows, two pre-built environments can be downloaded: one using MinGW and one using Microsoft Visual Studio. But Qt 5 has now a much better support for static builds on Windows and this article takes advantage of that. Note that building and installing a static version of Qt on Windows was somewhat problematic up to Qt 4. This article describes an automated way of downloading, building and installing a static Qt development environment using a Windows PowerShell script. But building a static version of the application requires a static version of the Qt environment in addition to the pre-built dynamic Qt environment. So, when the application is ready to deploy, it is easier to build a static version of it. Even using the classical DLL Dependency Walker tool, you cannot find all required DLL’s since some of them are dynamically loaded at execution. There are several DLL’s to deploy with the application. However, when it comes to deploying an application on systems without pre-installed Qt environments, it becomes complicated. This is probably the preferred environment for developing and debugging since everything is there and ready to use. This means that your Qt application dynamically references the Qt DLL's which are installed with the pre-built environment. On Windows, the pre-built environments from qt.io are dynamically linked. 7.1 Using the Qt static environment with Qt Creator (recommended).6.1 Using the Windows Powershell script.