MySQL Connector/C++ is available as a static or dynamic library to use with your application. This section looks at how to link the library to your application.
To avoid potential crashes the build configuration of MySQL Connector/C++ should match the build configuration of the application using it. For example, do not use the release build of MySQL Connector/C++ with a debug build of the client application.
Static library
The MySQL Connector/C++ static library file is
mysqlcppconn-static.lib
. This needs to be
statically linked with your application. You also need to link
against the files libmysql.dll
and
libmysql.lib
. Once linking has been
successfully completed, the application will require access to
libmysql.dll
at run time.
Dynamic library
The MySQL Connector/C++ dynamic library file is
mysqlcppconn.dll
. To build your client
application, you must link it with the file
mysqlcppconn.lib
. At run time, the
application will require access to the files
mysqlcppconn.dll
and
libmysql.dll
.
Building a MySQL Connector/C++ application with Microsoft Visual Studio
Initially, the procedure for building an application to use either the static or dynamic library is the same. You then carry out some additional steps depending on whether you want to build your application to use the static or dynamic library.
Select
, , from the main menu.In the wizard select Visual C++, Win32. From Visual Studio Installed Templates select the application type Win32 Console Application. Enter a name for the application, and then click , to move to the Win32 Application Wizard.
In the Win32 Application Wizard, click Application Settings and ensure the defaults are selected. The radio button Console application, and the checkbox Precompiled headers will be selected. Click to close the wizard.
From the drop down list box on the toolbar, change from the default Debug build to the Release build.
From the main menu select
, . This can also be accessed using the hot key + .Under Configuration Properties, open the tree view.
Select General in the tree view.
,You now need to ensure that Visual Studio can find the MySQL include directory. This directory includes header files that can optionally be installed when installing MySQL Server.
Then in the Additional Include Directories text field, add the MySQL
include/
directory.You will also need to set the location of additional libraries that Visual Studio will need to build the application. These are located in the MySQL
lib/opt
directory, a sub-directory of the MySQL Server installation directory.In the tree view open Linker, General, Additional Library Directories.
Add the
lib/opt
directory into the Additional Library Directories text field. This enables the library filelibmysql.lib
to be found.
The remaining steps depend on whether you are building an application to use the MySQL Connector/C++ static or dynamic library. If you are building your application to use the dynamic library go here. If you are building your application to use the static library, carry out the following steps:
Then open Linker, Input, Additional Dependencies.
Enter
mysqlcppconn-static.lib
andlibmysql.lib
.By default
CPPCONN_PUBLIC_FUNC
is defined to declare functions to be compatible with an application that calls a DLL. If building an application to call the static library, you must ensure that function prototypes are compatible with this. In this caseCPPCONN_PUBLIC_FUNC
needs to be defined to be an empty string, so that functions are declared with the correct prototype.In the Project, Properties tree view, under C++, Preprocessor, enter
CPPCONN_PUBLIC_FUNC=
into the text field.NoteMake sure you enter
CPPCONN_PUBLIC_FUNC=
and notCPPCONN_PUBLIC_FUNC
, as it needs to be defined as an empty string.
If building an application to use the MySQL Connector/C++ dynamically linked library carry out these steps:
Under Linker, Input, add
mysqlcppconn.lib
into the Additional Dependencies text field.The application will need to access the MySQL Connector/C++ Dynamic Linked Library at run time. Therefore,
mysqlcppconn.dll
needs to be in the same directory as the application executable, or somewhere on the system's path.Copy
mysqlcppconn.dll
to the same directory as the application. Alternatively, extend thePATH
environment variable usingSET PATH=%PATH%;C:\path\to\cpp
. Alternatively, you can copymysqlcppconn.dll
to the Windows installation Directory, typicallyc:\windows
.