c++ - Pop up dialog to save file in seperate thread -

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i have function gets called in separate thread main 1 when button gets clicked , calls qfiledialog::getsavefilename() function file handle file user saved,but can't on separate thread because modifies gui , you're not allowed that.

how can around this?

qfiledialog::getsavefilename() returns file name, not try open file nor return file handle.

it's not clear question, assume button starts thread execute lengthy task , store results file. call qfiledialog::getsavefilename() right there in button click slot, obtain file name , provide name thread. thread read file name, there no need synchronization. , then, open file provided file name in non-gui thread.


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