[Solved] How to create new folders directories from C++?

[skammers]

Hey!

I need to create new folders from C++.
I have tried this:

@
void masterResource::makeDirectories(QString folder)
{
QStringList fields = folder.split("///");
folder = fields.at(1).trimmed();

CreateDirectory("folder+"/Work", NULL);
CreateDirectory(folder+"/InTouch", NULL);

}
@

But then I get these errors:

error: cannot convert 'const char*' to 'LPCWSTR {aka const wchar_t*}' for argument '1' to 'WINBOOL CreateDirectoryW(LPCWSTR, LPSECURITY_ATTRIBUTES)'

and

error: cannot convert 'const QString' to 'LPCWSTR {aka const wchar_t*}' for argument '1' to 'WINBOOL CreateDirectoryW(LPCWSTR, LPSECURITY_ATTRIBUTES)'

[skammers]

Never mind, got it to work. The function was

@CreateDirectoryA("folder+"/Work", NULL);@

instead of

@CreateDirectory("folder+"/Work", NULL);@

Notice the 'A'.

[andreyc]

Another option is to use QDir
@
void masterResource::makeDirectories(QString folder)
{
QStringList fields = folder.split("///");
folder = fields.at(1).trimmed();

QDir currentDir;

currentDir.mkpath(folder + "/Work");
currentDir.mkpath(folder + "/InTouch");

}
@

[Chris Kawa]

All in all you should do what andreyc says and use portable Qt APIs, but if you won't then:

Don't use A methods of winAPI. They are obsolete ANSI variant and don't handle national characters. You should use the W variants or the "no letter" macros (which get expanded to W variants when UNICODE is defined, which is the default these days). You need to provide a wide string for these, eg.
@
QString path = ...
CreateDirectory(path.toStdWString().c_str());
@
If you use wide character string literals prepend them with letter L, eg. L"some string". That's how you define a wchar_t string literal in c++;

Btw. your "folder" variable is a QString and the winAPI function takes a wchar_t pointer (LPCWSTR expands to that) so I don't see how your solution could work.