diff --git a/plugins/win-dshow/win-dshow.cpp b/plugins/win-dshow/win-dshow.cpp
index 47f02dcab..85a542a8c 100644
--- a/plugins/win-dshow/win-dshow.cpp
+++ b/plugins/win-dshow/win-dshow.cpp
@@ -1145,12 +1145,22 @@ static const char *GetDShowInputName(void *)
 	return TEXT_INPUT_NAME;
 }
 
+static void proc_activate(void *data, calldata_t *cd)
+{
+	bool activate = calldata_bool(cd, "active");
+	DShowInput *input = reinterpret_cast<DShowInput *>(data);
+	input->SetActive(activate);
+}
+
 static void *CreateDShowInput(obs_data_t *settings, obs_source_t *source)
 {
 	DShowInput *dshow = nullptr;
 
 	try {
 		dshow = new DShowInput(source, settings);
+		proc_handler_t *ph = obs_source_get_proc_handler(source);
+		proc_handler_add(ph, "void activate(bool active)",
+				 proc_activate, dshow);
 	} catch (const char *error) {
 		blog(LOG_ERROR, "Could not create device '%s': %s",
 		     obs_source_get_name(source), error);