Qt
The code is here .when i compile it says
error writing to -:invalid argument
what could be the problem???
help me im totaly stuck here
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#include "finddialog.h"
#include <QtGui>
#include <QHBoxLayout>
#include <QVBoxLayout>
FindDialog::FindDialog(QWidget *parent) :
QMainWindow(parent)
{
label=new QLabel(tr("Find &what"));
lineEdit=new QLineEdit;
label->setBuddy(lineEdit);
caseCheckBox=new QCheckBox(tr("Match &case"));
backwardCheckBox=new QCheckBox(tr("Search &backward"));
findButton=new QPushButton(tr("&Find"));
findButton->setDefault(true);
findButton->setEnabled(false);
closeButton=new QPushButton(tr("Close"));
connect(lineEdit,SIGNAL(textChanged(const QString&)),this,SLOT(enableFindButton));
connect(findButton,SIGNAL(clicked()),this,SLOT(close()));
connect(closeButton,SIGNAL(clicked()),this,SLOT(close()));
QHBoxLayout *topLeftLayout=new QHBoxLayout;
topLeftLayout->addWidget(label);
topLeftLayout->addWidget(lineEdit);
QVBoxLayout *leftLayout=new QVBoxLayout;
leftLayout->addLayout(topLeftLayout);
leftLayout->addWidget(caseCheckBox);
leftLayout->addWidget(backwardCheckBox);
QVBoxLayout *rightLayout=new QVBoxLayout;
rightLayout->addWidget(findButton);
rightLayout->addWidget(closeButton);
rightLayout->addStretch();
QHBoxLayout *mainLayout=new QHBoxLayout;
mainLayout->addLayout(leftLayout);
mainLayout->addLayout(rightLayout);
setLayout(mainLayout);
setWindowTitle("Mahrukh");
setFixedHeight(sizeHint().height());
}
void FindDialog::findClicked()
{
QString text = lineEdit->text();
Qt::CaseSensitivity cs = caseCheckBox->isChecked() ?Qt::CaseSensitive:Qt::CaseInsensitive;
if(backwardCheckBox->isChecked()){
emit findPrevious(text,cs);
}
else{
emit findNext(text,cs);
}
}
void FindDialog::enableFindButton(const QString &text)
{
findButton->setEnabled(!text.isEmpty());
}
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Also tell me where to find tutorials on Qt ....
i do not want drag and drop.....
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