Reports

I am facing similar kind of issue, i am trying to establish two way communication between my native c++ plugin and uxp plugin. I have added listeners and senders but it is not working.

I am getting this error -

❌ [UXP-COMM] Failed to register UXP message listener: 1344357988 (0x50214664)

❌ [UXP-COMM] Error details: gPlugInRef=0x11fddd028, UXPMessageHandler=0x37b306550

and similar issue when i try to send message to uxp plugin.

void SendMessageToUXPPanel(const std::string& messageType, const std::string& data) {
    if (!sUxpProcs) {
        LOG_TRACE((0, "❌ [UXP-COMM] UXP suite not available"));
        return;
    }
    
    try {
        PIActionDescriptor desc;
        SPErr err = sPSActionDescriptor->Make(&desc);
        if (err != kSPNoError) {
            LOG_TRACE((0, "❌ [UXP-COMM] Failed to create descriptor"));
            return;
        }
        
        // Set message type and data
        sPSActionDescriptor->PutString(desc, 'type', messageType.c_str());
        sPSActionDescriptor->PutString(desc, 'data', data.c_str());
        sPSActionDescriptor->PutString(desc, 'time', std::to_string(time(NULL)).c_str());
        
        // Send to UXP panel
        const char* UXP_PLUGIN_ID = "Test-v0qxnk";  // From your manifest.json
        err = sUxpProcs->SendUXPMessage(gPlugInRef, UXP_PLUGIN_ID, desc);
        
        if (err == kSPNoError) {
            LOG_TRACE((0, "✅ [UXP-COMM] Message sent to UXP panel: %s", messageType.c_str()));
        } else {
            LOG_TRACE((0, "❌ [UXP-COMM] Failed to send message to UXP panel: %d", err));
        }
        
        // Clean up descriptor
        sPSActionDescriptor->Free(desc);
    }
    catch (...) {
        LOG_TRACE((0, "❌ [UXP-COMM] Exception in SendMessageToUXPPanel"));
    }
}


if (sUxpProcs) {
        LOG_TRACE((0, "🔍 [UXP-COMM] UXP suite acquired, registering message listener..."));
        LOG_TRACE((0, "🔍 [UXP-COMM] gPlugInRef: %p, UXPMessageHandler: %p", gPlugInRef, UXPMessageHandler));
        SPErr err = sUxpProcs->AddUXPMessageListener(gPlugInRef, UXPMessageHandler);
        if (err == kSPNoError) {
            LOG_TRACE((0, "✅ [UXP-COMM] UXP message listener registered successfully"));
        } else {
            LOG_TRACE((0, "❌ [UXP-COMM] Failed to register UXP message listener: %d (0x%x)", err, err));
            LOG_TRACE((0, "❌ [UXP-COMM] Error details: gPlugInRef=%p, UXPMessageHandler=%p", gPlugInRef, UXPMessageHandler));
        }
    } else {
        LOG_TRACE((0, "❌ [UXP-COMM] UXP suite not available for message listener (suiteErr: %d)", suiteErr));
    }

In documentation, we don't have proper information regarding this feature, not sure what to do next.

79790049