how can I tell cmake to find Windows Media Foundation?

To instruct CMake to find and configure Windows Media Foundation (WMF) during the build process, you'll need to set up the appropriate CMake variables and possibly provide additional information about the location of WMF libraries and headers. Here's how you can do it:

1. Find Windows Media Foundation:
   CMake provides a FindWMF.cmake module that you can use to locate Windows Media Foundation. If this module is not available in your CMake distribution, you might need to create your own custom module or use alternative methods.

2. CMakeLists.txt Configuration:
   In your CMakeLists.txt file, include the following lines to locate and configure Windows Media Foundation:

   cmakeCopy code
   find_package(WMF REQUIRED)
   
   
   
   if(WMF_FOUND)
   
       include_directories(${WMF_INCLUDE_DIRS})
   
       link_directories(${WMF_LIBRARY_DIRS})
   
       target_link_libraries(your_target_name ${WMF_LIBRARIES})
   
   else()
   
       message(FATAL_ERROR "Windows Media Foundation not found.")
   
   endif()
   
   

   Replace your_target_name with the name of the target you're building (such as your executable or library).

3. Providing Additional Information:
   If CMake is not able to find Windows Media Foundation automatically, you might need to provide more information about the location of WMF libraries and headers using CMake variables. For example:

   cmakeCopy code
   set(WMF_INCLUDE_DIRS "C:/Program Files (x86)/Windows Kits/10/Include/10.0.19041.0/um/")
   
   set(WMF_LIBRARY_DIRS "C:/Program Files (x86)/Windows Kits/10/Lib/10.0.19041.0/um/x64/")
   
   

   Replace these paths with the actual paths where WMF headers and libraries are located on your system.

4. Building the Project:
   Once you've configured your CMakeLists.txt file, you can use CMake to generate build files for your project. Navigate to your build directory and run CMake:

   bashCopy code
   cmake /path/to/your/project
   
   

   Then, proceed to build your project using the generated build files.

Remember that the specifics of configuring CMake may depend on your project's structure, the version of CMake you're using, and the availability of the FindWMF.cmake module or any other custom module you create. Always refer to the official CMake documentation and any relevant documentation for Windows Media Foundation for accurate and up-to-date information.