Qt ini read/write

Qsettings * configini = new qsettings (qsettings: INI );
Configini-> insertsearchpath (qsettings: Unix, "/home/Dawei");. // configuration file directory
Configini-> writeentry (qstring: fromutf8 ("/config./opt/parameter 1"), qstring: fromutf8 ("Chinese "));
String AAA = configini-> readentry (qstring: fromutf8 ("/config./opt/parameter 1 ");
Delete configini;

The config. RC configuration file is generated in the/home/Dawei directory.
[Opt]
Parameter 1 = Chinese

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Qsettings settings ("../etc/BPMs. conf", qsettings: iniformat, & App );
Qstring db_hostname = settings. Value ("hostname"). tostring ();
Qstring db_database = settings. Value ("Database"). tostring ();
Qstring db_username = settings. Value ("username"). tostring ();
Qstring db_password = settings. Value ("password"). tostring ();
Qsqldatabase DB = qsqldatabase: adddatabase ("qmysql ");
DB. sethostname (db_hostname );
DB. setdatabasename (db_database );
DB. setusername (db_username );
DB. setpassword (db_password );

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# Include <qsettings>

Here are just a few simple examples:

1. Use qsettings to write the Registry

1. Qsettings * Reg =NewQsettings ("HKEY_CURRENT_USER \ Software \ yinhaifan",
2. Qsettings: nativeformat );
3. Reg-> setvalue ("Registered",True);
4. DeleteReg;

Qsettings * Reg = new qsettings ("HKEY_CURRENT_USER \ Software \ yinhaifan", qsettings: nativeformat); reg-> setvalue ("registered", true); Delete reg;

Of course, reg-> setvalue can also write data such as strings and integers.

For example, reg-> setvalue ("registered", "yes ");

2. Use qstring to read the Registry

1. qsettings * Reg = New qsettings ( "HKEY_CURRENT_USER \ Software \ yinhaifan ",
2. qsettings: nativeformat);
3. If (reg-> value ( "registered" , false ). tobool ()
4. {
5. qmessagebox: Information (null, "information" , "registered" );
6. }
7. Delete reg;

Qsettings * Reg = new qsettings ("HKEY_CURRENT_USER \ Software \ yinhaifan", qsettings: nativeformat); If (reg-> value ("registered", false ). tobool () {qmessagebox: Information (null, "information", "registered");} Delete reg;

You can also use toint (), tostring (), and so on.

3. Use qsettings to write the INI file:

1. Qsettings * configini =NewQsettings ("D: \ A. ini", Qsettings: iniformat, 0 );
2. Configini-> setvalue ("/Config/node1", UI-> lineedit-> text ());
3. DeleteConfigini;

Qsettings * configini = new qsettings ("D: \. ini ", qsettings: iniformat, 0); configini-> setvalue ("/config/node1 ", UI-> lineedit-> text (); Delete configini;

4. Use qsettings to read the INI file:

1. Qsettings * configini =NewQsettings ("D: \ A. ini", Qsettings: iniformat, 0 );
2. UI-> lineedit_2-> settext (configini-> value ("/Config/node1","20"). Tostring ());
3. DeleteConfigini;

Qsettings * configini = new qsettings ("D: \. ini ", qsettings: iniformat, 0); UI-> lineedit_2-> settext (configini-> value ("/config/node1 "," 20 "). tostring (); Delete configini;

These paragraphsCodeThey are all written in QT creator, so we use UI-> lineedit *-> text () and UI-> lineedit *-> settext () for input and output.

The qsettings class reference section in this document is clear.

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M_ndevno = ndevno;
Qstring strtemp;
Qstring xmlpath = csc_app.m_strworkpath + "/initinfo. ini ";
Qsettings * mysetting = new qsettings (xmlpath, qsettings: iniformat );

Foreach (qstring group, mysetting-> childgroups ())
{
Mysetting-> begingroup (group );
Foreach (qstring key, mysetting-> childkeys ())
{
Qtextcodec * codec = qtextcodec: codecforname ("GBK ");
Qstring outstr = codec-> tounicode (key. tolatin1 ());
If (outstr = "self-description language ")
{
If (mysetting-> value (key, "0"). toint () = 1)
Ui. selfdsplgu-> setcurrentindex (1 );
Else
Ui. selfdsplgu-> setcurrentindex (0 );
}
If (outstr = "working language ")
{
If (mysetting-> value (key, "0"). toint () = 1)
Ui. worklgu-> setcurrentindex (1 );
Else
Ui. worklgu-> setcurrentindex (0 );
}

If (outstr = "working offline ")
{
If (mysetting-> value (key, "0"). toint () = 1)
Ui. workmode-> setcurrentindex (1 );
Else
Ui. workmode-> setcurrentindex (0 );
}

If (outstr = "call self-description ")
{
If (mysetting-> value (key, "0"). toint () = 1)
Ui. selfdspsource-> setcurrentindex (1 );
Else
Ui. selfdspsource-> setcurrentindex (0 );
}

If (outstr = "multicast address ")
{
Strtemp = mysetting-> value (key, "236.8.8.8"). tostring ();
Ui. Gr address-> settext (strtemp );
}

If (outstr = "receive port number ")
{
Strtemp = mysetting-> value ("receiving port number", "2000"). tostring ();
Ui. recport-> settext (strtemp );
}

If (outstr = "sending port number ")
{
Strtemp = mysetting-> value ("sending port number", "2001"). tostring ();
Ui. targetport-> settext (strtemp );
}

If (outstr = "enable local address ")
{
Strtemp = mysetting-> value (key, "0"). tostring ();
}
If (outstr = "local address ")
{
Strtemp = mysetting-> value (key, "0"). tostring ();
Ui. localip-> settext (strtemp );
}
If (outstr = "device name ")
{
Strtemp = mysetting-> value (key, "0"). tostring ();
Ui. eqpname-> settext (strtemp );
}
If (outstr = "device address ")
{
Strtemp = mysetting-> value (key, "0"). tostring ();
Ui. eqpaddress-> settext (strtemp );
}

If (outstr = "device IP ")
{
Strtemp = mysetting-> value (key, "0"). tostring ();
Ui. targetip-> settext (strtemp );
}
}
Mysetting-> endgroup ();