I do

welcome back and happy birthday

@RealChronics they want C/C++ code, and as people have already told OP, they should learn C/C++ and the Windows API functions (LoadLibraryA and GetProcAddress if that helps)

@MINISHXP that walkthrough doesn't really work because WeAreDevs doesn't distribute the lib file to link it during compile-time, so you have to load the library manually, and get its functions pointers

You need the DirectX 9 SDK, download and install it and then include and link it in your project, and don't use the directory in the program files directory or whatever, you should use the system environment variable DXSDK_DIR

<AdditionalIncludeDirectories>$(DXSDK_DIR)Include;%(AdditionalIncludeDirectories);</AdditionalIncludeDirectories>
<!-- for x64 replace x86 with x64 -->
<AdditionalLibraryDirectories>$(DXSDK_DIR)/Lib/x86;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>d3d9.lib;%(AdditionalDependencies)</AdditionalDependencies>