Qprinter take receipt

saravanavelu39

Hi all,

      I need to take a print receipt. I have one string "hello",,and how to take this value from print receipt using Qprinter,,please give me suggesstion,, Thanks

saravanavelu39

This is my code
@QESCPOS printer("/dev/ttyUSB0");

printer.open(QIODevice::ReadWrite);
printer.autoConfig();

/*printer.setBaudRate(BAUD19200);
printer.setFlowControl(FLOW_HARDWARE);
printer.setParity(PAR_NONE);
printer.setCharacterCodeTable(QESCPOS::CCT_PC850);
printer.setInternationalCharacterSet(QESCPOS::ICS_CHINESE);



printer.initialize();*/

// printer.cutPaper(true, 0);

/*QList<QImage> l;
l.append(QImage("/home/qdot/Downloads/logo.png"));
printer.defineNVRaster(l);*/

printer.write("Test: 大虾多士\n");
printer.cutPaper(true, 0);@

in here i need to display (" Test: 大虾多士\n") in the receipt,,please give me a suggesstion

SGaist

Hi,

What is QESCPOS ? How is it related to QPrinter ? What do you get ?

You need to give more informations

saravanavelu39

Hi,
I have the chinese character problem same like this link "https://bugreports.qt-project.org/browse/QTBUG-27508": ,, i have the problem same like as the first diagram,,, the chinese characters are ovarlapped in the receipt,,,but it comes correctly in the widget,,,please give me a good suggesstion,,thanks

SGaist

I can't give you any suggestions if you don't answer my questions first

saravanavelu39

Hi,

  Actually QESCPOS is a third party file,,,i just inherit that mt project,,,my problem is I send the chinese character in the Qprinter means chinese characters are not displayed corretly in the print receipt,,,But if i pass the chinese character in the button means it displayed correctly,,,this is the my problem,,,,please give any suggesstion,,,thanks,,

SGaist

Which version of Qt are you using ? If you print ASCII char, does it work correctly ?

saravanavelu39

Hi SGaist,,,I am using Qt 4.8.6,, if i print ascii character means it comes correctly,,, If i print the chinese character means the characters are broken,,

here is my code,
@@QString ItemPushButton::name_check(QString str)
{
QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));
QRegExp [removed]"#([0-9]+);");
QStringList list,list1;
int pos = 0;
int length;
while((pos = expression.indexIn(str,pos))!=-1)
{
list << expression.cap(1);
QString v;
length = expression.matchedLength();
v=str.mid(pos+1,length-1-1);
QByteArray ba = v.toUtf8();
QString str1 = QString(QChar(v.toInt()));
list1 <<str1;
pos += expression.matchedLength();
}
foreach (QString s, list) {
str.replace(s,"");
}
str = str.replace("#","");
str = str.replace(";","");

foreach (QString s, list1) {
    str = str.append(s);
}
return str;

}@

for example if i send (#26434;) string in this function means it retuns chinese character string,,after that i pass this string to pushbutton means it displayed correctly,,but if i pass the chinese character in Qprinter means the characters are broken in the receipt,,please give me a suggesstion,,Thanks,,

SGaist

Then you should ask the status of this on the bug report