How to get the return value synchronously, when invoking a slot method with qwebchannel.js?

[xiao499242740]

Hi guys,I had read the help document about qwebchannel.js as the picture shows, but I want to get the return value synchronously. How should i do ? Can i get the return value synchronously? Thank you!

[MsLiu]

Is this the js function? You can invoke Qt's function or emit signal from callback,the value passed through param

hope to help you

[xiao499242740]

@MsLiu said in How to get the return value synchronously ,when invoking a slot medthod with qwebchannel.js?:

You can invoke Qt's functio

Thanks for your help! But I Want get the return value synchronously ,not asynchronously. How should i do?

[MsLiu]

You can synchronize with the semaphore by yourself ,You can wait in invoke function until callback function return
hope to help you

[amithooda]

I am also in need to sync call from JS side to c++ side using QWebChannels. I have a list which populates and then i need to serve it to the JS side. How should i do it ?