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I wonder how to copy file that is embeded into app qrc into fs? Stuff like
QFile::copy("qrc:/assets/files/my.file" , "C:/my.file");
seems not to work. Why and how to make it to?
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Using a QRC file qrc file in your application you first need to compile it to Python. PyQt5 comes with a command line tool to do this, which takes a . qrc file as input and outputs a Python file containing the compiled data. This can then be imported into your app as for any other Python file or module.
In the Location field, specify a location for the file. Select Add to create a . qrc file and to open it in the Qt Resource Editor. To add resources to the file, select Add > Add Files.
By default, resources are accessible in the application under the same file name as they have in the source tree, with a :/ prefix, or by a URL with a qrc scheme. In this case, the file is accessible as :/myresources/cut-img.
You don't need the qrc, resources start with a :
eg QFile myFile(":/data/data.xml");
PS: I'm not sure how QFile treats case sensitiveness on resource filenames. For best portability you might want to make sure the case matches whatever is in your qrc file.
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