MQL5 ReferenceStandard LibraryPanels and DialogsCWndContainerAdd DestroyOnEventOnMouseEventControlsTotalControlControlFindAddDeleteMoveShiftIdEnableDisableShowHideMouseFocusKillSaveLoadOnResizeOnActivateOnDeactivate Add Adds a control to a group (container). bool Add( CWnd& control // reference ) Parameters control [in] Control to add, passed by reference. Return Value true - successful, otherwise - false. ControlFind Delete