You can refer to the example shown in dshow and write it. The DX directory must be configured in include/library. In addition, use dshow to remember to compile the Baseclasses in its sample directory, basically use dshow will be useful.
In the tool-options-directory-include files, the include directory in dx has been selected. What else needs to be changed?
Project-settings-whether to add anything to the library/library module.lib
Also: remember to compile Baseclasses in the sample directory with dshow. How should I understand this? Can you take a moment to tell me?