mainWindow.webContents.send('defaultStreamRequest', 'slr')
let p = new Promise((resolve,reject) => {
ipcMain.on('defaultStreamResponse', (event, arg) => {
mainWindow.webContents.send('defaultStreamRequest', 'slr')
let p = new Promise((resolve,reject) => {
ipcMain.on('defaultStreamResponse', (event, arg) => {