/**
* @brief Gets the launch mode of the application.
*
+ * @remarks Since Tizen 3.0, if launch mode not set in the caller app control,
+ * the function returns #APP_CONTROL_LAUNCH_MODE_SINGLE launch mode.
* @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
* @param[in] app_control The app_control handle
* @param[out] launch_mode The launch mode of app