How to use the electron-util.activeWindow function in electron-util

this.setState(prevState => {
			this.api.disableCurrency(coin);
			const enabledCoins = prevState.enabledCoins.filter(enabledCoin => enabledCoin !== coin);
			setCurrencies(prevState.portfolio.id, enabledCoins);

			// TODO: Remove this when https://github.com/artemii235/SuperNET/issues/459 is fixed.
			api.dialog.showMessageBox(activeWindow(), {
				message: 'Marketmaker v2 cannot currently disable currencies when running, so you need to restart HyperDEX for it to take effect.',
			});

			return {enabledCoins};
		}, () => {
			this.events.emit('enabled-currencies-changed');

ipcMain.on("logviewer.open-file-dialog", () => {
    // arg is empty - we simply wanting to be notified that user trying to open a file dialog

    // Get focused window
    const currentWindow = activeWindow().webContents;
    openFileDialog(currentWindow);
});

onClick() {
          activeWindow().close()
        }
      },

    }} onClick={() => activeWindow().minimize()}>
      <div style="{{height:"></div>

      cursor: 'pointer'}} onClick={() => activeWindow().maximize()} />
  }

onClick() {
          return activeWindow().minimize()
        }
      },

componentDidMount() {
		activeWindow().setSheetOffset(document.querySelector('.toolbar').getBoundingClientRect().height);
	}

    }} onClick={() => activeWindow().close()}>

onClick() {
          activeWindow().maximize()
        }
      }

onClick() {
          activeWindow().maximize()
        }
      }