c++ - catch cancel click nsis installer from shellexecuteex -

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hi trying run installer using shellexecuteex c++ application. able make installer run. if click cancel on nsis installer anytime how catch c++ application , print installation failed.

i tried this

if((uint)shexecinfo.hinstapp <= se_err_ddetimeout )  {     fprintf(fp, "failed start installer \n");     exit(-1);    }

but no luck, tried print whats in shexecinfo.hinstapp , result number 42. ideas?

hinstapp holds error (if any) occurred during start up. has nothing application closing.

you want @ exit code of installer process getexitcodeprocess, stored in shexecinfo.hprocess if set see_mask_nocloseprocess flag in shexecinfo.fmask.

you'll have check nsis documentation exit code returned when user hits cancel.


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