Install Qt in Windows

QT is a standard development tool of ked. It uses C ++ as the development language and has object-oriented features. Here we will introduce how to compile and install QT using mingw in windows.
1. We can download an open-source development version from the official QT website. Here we recommend the download site in China. There are various available versions to download, and has a good speed. qt Chinese Forum: http://www.qtcn.org/bbs.
2 download mingw, In our example, we are using a Dev-Cpp4.9, you can use the default options for installation, so we can use mingw.
3. decompress the downloaded QT source package to a directory. Note that this directory cannot contain any spaces. for example, we put it in the QT directory of the D Drive and rename the extracted directory to 4.1.2.
4. Add environment variables: add the bin directory in the source package to the PATH variable of our system. Right-click my computer and choose advanced> environment variables to set the environment variables. for example, in this case, we can add D:/QT/4.1.2/bin.
5. Add the mingw environment variable and add the bin directory under our Dev-CPP directory to our environment variable path. If our Dev-CPP is installed in C: in the/dev-CPP directory, we can add C:/dev-CPP/bin.
6 Configuration:
In the command line window, go to the 4.1 directory, and enter the following command for compilation Configuration:
Configure-platform win32-g ++-QT-GIF-QT-SQL-mysql-plugin-SQL-ODBC-I c:/dev-CPP/include-L C: /dev-CPP/lib
Here we specify the platform parameter as win32-g ++, that is, we need to use this compiler during this compilation process to enable GIF and MySQL support, use-I to specify the header file used for compilation, and use-L to specify the library file directory used for compilation.
In this way, our system can be checked and configured according to our requirements.
7. Compile:
After the configuration is complete, we enter the following command for compilation: mingw32-make
After this operation, we have installed QT on windows, so that we can perform Qt in windows. Program.