MQL5参考标准程序库面板和对话框CDialogClientAreaWidth CreateOnEventCaptionAddCreateWhiteBorderCreateBackgroundCreateCaptionCreateButtonCloseCreateClientAreaOnClickCaptionOnClickButtonCloseClientAreaVisibleClientAreaLeftClientAreaTopClientAreaRightClientAreaBottomClientAreaWidthClientAreaHeightOnDialogDragStartOnDialogDragProcessOnDialogDragEnd ClientAreaWidth 获取客户区域控件宽度。 int ClientAreaWidth() 返回值 客户区域控件宽度。 ClientAreaBottom ClientAreaHeight