Using Multi-Byte in place of Unicode

[squidge]

There's two versions of CreateFile:
CreateFileA takes a ASCII parameters (char *)
CreateFileW takes Unicode parameters (wchar *)

Typically, if you have Unicode defined, CreateFileW is aliases to CreateFile, else CreateFileA is aliased to CreateFile.

You can still use either by using the proper names:

QString foo = "\\\\.\\COM1";
CreateFileW(foo.utf16(), ...)

QString foo = "\\\\.\\COM1";
CreateFileW(foo.utf16(), ...)

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char foo[] = "\\\\.\\COM1";
CreateFileA(foo, ...)

char foo[] = "\\\\.\\COM1";
CreateFileA(foo, ...)

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[TheDuncan]

Thanks a bunch. I used CreateFileA and it seems to be working.

I'm new to Qt so I have a noob question to ask. How can I display a long in a Line Edit? I tried this

QString number(lmsDist[20], 10);
ui->txtAhead->setText(number);

QString number(lmsDist[20], 10);
ui->txtAhead->setText(number);

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but it just inserts blank spaces. I used debugging mode to check what lmsDist[540] was and it was an actual number (6530, 87, etc). What am I doing wrong?

Thanks again with your help.

[wysota]

See QString::number().

[TheDuncan]

Works like a champ. Thanks a million!