c++ - QT - copying a file to AppData -


my program prompts user select file process. program processes , tries save file appdata.

this how it:

qsettings settings(qsettings::iniformat, qsettings::userscope, "flametool", "flametool"); addin_path = qfileinfo(settings.filename()).absolutepath() + "/addins/" + id + ".limod" ; qdebug(addin_path.tolocal8bit());  if(qfile::copy(qdir::tonativeseparators(file_passed),qdir::tonativeseparators(addin_path)))     qdebug("copied"); else     qdebug("not copied");

everytime part of code executed, outputs "not copied". how can copy file?

in order want, advice using qstandardpaths class instead:

set application name in, example, main.cpp

int main(...) {     [..]     a.setapplicationname("flametool"); }

copy file:

qstring addin_path = qstandardpaths::writablelocation(qstandardpaths::datalocation); qdir dir(addin_path); if (!dir.exists())     dir.mkpath(addin_path); if (!dir.exists("addins"))     dir.mkdir("addins");  dir.cd("addins"); addin_path = dir.absolutefilepath(id + ".limod"); if (qfile::exists(addin_path))     qfile::remove(addin_path);  if(qfile::copy(file_passed, addin_path))     qdebug("copied"); else     qdebug("not copied");

please note that:

note if file name newname exists, copy() returns false (i.e. qfile not overwrite it).


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