About C# WPF control of OBS Studio

[kaiS]

C# WPF control OBS Studio can control the functions of OBS Studio, such as creating scene sets and switching scenes, after being connected through OBS-WebSocket. Currently, it needs to be controlled through the interface in OBs-frontend-api.dll
OBS Studio creates scene sets, switches scenes, and so on. Obs-frontend -api.dll has been viewed through Developer Command Prompt for Vs 2022
obs_frontend_get_scene_collections = obs_frontend_get_scene_collections
obs_frontend_get_scene_names = obs_frontend_get_scene_names
obs_frontend_get_scenes = obs_frontend_get_scenes
These interfaces are included
[DllImport("E:\\obs-studio\\bin\\64bit\\obs-frontend-api.dll", CallingConvention = CallingConvention.Cdecl, CharSet = CharSet.Ansi)]
private static extern IntPtr obs_frontend_get_scene_collections();
private static extern void obs_frontend_set_current_scene_collection(string collection);

public static List<string> GetSceneCollectionsList()
{
var sceneCollections = new List<string>();
var ptr = obs_frontend_get_scene_collections();
if (ptr == IntPtr.Zero) return sceneCollections;

try
{
var currentPtr = ptr;
while (true)
{
var strPtr = Marshal.ReadIntPtr(currentPtr);
if (strPtr == IntPtr.Zero) break;
var str = Marshal.PtrToStringAnsi(strPtr);
sceneCollections.Add(str);
currentPtr += IntPtr.Size;
}
}
finally
{


}

return sceneCollections;
}
if (ptr == IntPtr.Zero) return sceneCollections; if (PTR == intptr.zero) return scenecollections; Will directly return sceneCollections;
[DllImport("E:\\obs-studio\\bin\\64bit\\obs-frontend-api.dll", CallingConvention = CallingConvention.Cdecl, CharSet = charset.ansi)] is the actual obs-studio installation directory address
Given that ptr == IntPtr.Zero currently exists a scene set, is there a code problem? Or does obs-frontend-api.dll not support such a call?

 

[kaiS]

Ask if the API may not be intended for external calls, or is only available under certain conditions. Have other developers successfully called the API from the outside?

 

[kaiS]

If the API does not support the call whether there are other methods to support c# can call the way to achieve the creation of the scene, access to the scene collection and other functions

 

[R1CH]

The obs-frontend-api.dll exports are intended for use by plugins, calls must be made inside the OBS process - you cannot use it externally.

 

[kaiS]

The obs-frontend-api.dll exports are intended for use by plugins, calls must be made inside the OBS process - you cannot use it externally.

Thank you. Is it possible to control OBS through external calls through lua scripts or other apis?

 

[kaiS]

I need help. May I ask that OBS can be controlled by calling an API interface of OBS through C# instead of OBS-Websocket connection

 

[kaiS]

Asking for help on how C# WPF calls OBS externally