Qstring conversion UTF8

[harleyskater]

I am trying to convert a Qstring to UTF8 for a mysql query. I am getting the following error.

1>.\thewge.cpp(54) : error C2039: 'utf8' : is not a member of 'QString'
1> c:\qt\4.6.2\include\qtcore\../../src/corelib/tools/qstring.h(91) : see declaration of 'QString'
1>.\thewge.cpp(55) : error C2039: 'utf8' : is not a member of 'QString'
1> c:\qt\4.6.2\include\qtcore\../../src/corelib/tools/qstring.h(91) : see declaration of 'QString'

QString Qstr1 = ui.usrLineEdit->text();
	QString Qstr2 = ui.pwdLineEdit->text();
 
	char *acsUserName = Qstr1.utf8();
	char *acsPassword = Qstr2.utf8();

QString Qstr1 = ui.usrLineEdit->text();
	QString Qstr2 = ui.pwdLineEdit->text();

	char *acsUserName = Qstr1.utf8();
	char *acsPassword = Qstr2.utf8();

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I also tried this.

QString Qstr1 = ui.usrLineEdit->text();
	QString Qstr2 = ui.pwdLineEdit->text();
 
	char *acsUserName = Qstr1.toUtf8();
	char *acsPassword = Qstr2.toUtf8();

QString Qstr1 = ui.usrLineEdit->text();
	QString Qstr2 = ui.pwdLineEdit->text();

	char *acsUserName = Qstr1.toUtf8();
	char *acsPassword = Qstr2.toUtf8();

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and got these errors:

1>.\thewge.cpp(53) : error C2440: 'initializing' : cannot convert from 'QByteArray' to 'char *'
1> No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
1>.\thewge.cpp(54) : error C2440: 'initializing' : cannot convert from 'QByteArray' to 'char *'
1> No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called