// Detects updates to the planet adding dialog.
BOOL CALLBACK dialogAddProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
    switch (Message) {
        case WM_COMMAND:
            switch (LOWORD(wParam)) {
                case btnOK: // OK button
                    if (!addPlanetSend())
                        MessageBox(hwnd, "Please enter all fields!", "Error", 0);
                    else
                        ShowWindow(dialogAdd, SW_HIDE);
                    break;
                case btnCancel: // Cancel button
                    ShowWindow(dialogAdd, SW_HIDE);
                    break;
            }
            break;
        case WM_CLOSE: // Window is closed
            ShowWindow(dialogAdd, SW_HIDE);
            return TRUE;
    }
    return FALSE;
}

BOOL CALLBACK dialogMainProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) {
    switch (Message) {
        case WM_COMMAND:
            switch (LOWORD(wParam)) {
                case btnAdd: // Add planet button
                    ShowWindow(dialogAdd, SW_SHOW);
                    break;
                case btnRemove: // Remove planets button
                    removePlanets(hwnd);
                    break;
                case btnOpen: // Open from file button
                    openPlanets(hwnd);
                    break;
                case btnSave: // Save to file button
                    savePlanets();
                    break;
                case btnSend: // Send to server button
                    sendPlanets(hwnd);
                    break;
                case dlgAdd: // Receive form valus from the other dialog
                    addPlanetReceive(hwnd, (createPlanetCommand*)lParam);
                    break;
            }

            break;
        case WM_INITDIALOG: // Startup
            threadCreate(watchServerPlanets, hwnd);
            break;
        case WM_DESTROY: // Window is destroyed
            PostQuitMessage(0);
            return TRUE;
        case WM_CLOSE: // Window is closed
            DestroyWindow(hwnd);
            return TRUE;
    }
    return FALSE;
}