How to change size of QDialog??

QT-static-prgm

It seams that i'm too stupid to change the size of my QDialog.
Here is the code:

	QMessageBox* dialog = new QMessageBox(QMessageBox::Information,
		WINDOW_NAME,
		QString(m_fileInfo.left(m_fileInfo.indexOf("<detail>"))),
		QMessageBox::StandardButton::Close,
		this,
		Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint);

	dialog->setDetailedText(QString(m_fileInfo.right(m_fileInfo.size() - m_fileInfo.indexOf("<detail>") - 8)));
	dialog->resize(500, 1000);
	dialog->exec();
	delete dialog;

I just want to set a minimum width. But nothing works:

	QMessageBox* dialog = new QMessageBox(QMessageBox::Information,
		WINDOW_NAME,
		QString(m_fileInfo.left(m_fileInfo.indexOf("<detail>"))),
		QMessageBox::StandardButton::Close,
		this,
		Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint);

	dialog->setDetailedText(QString(m_fileInfo.right(m_fileInfo.size() - m_fileInfo.indexOf("<detail>") - 8)));
	dialog->setMinimumWidth(500);
	dialog->exec();
	delete dialog;

I tried to set the sizepolicy, but i always get error messages, when i try that.

mrjj

Hi
Do you mean QMessageBox ?
It is not really supported but hacks exists.
http://stackoverflow.com/questions/37668820/how-can-i-resize-qmessagebox
Also see this "bug" report.
https://bugreports.qt.io/browse/QTBUG-7851

QT-static-prgm

Works fine. Do you know how to remove the "bling" when i use QMessageBox::Information?? I want that i icon, but i don't want it to make sound

mrjj

@QT-static-prgm said in How to change size of QDialog??:

but i don't want it to make sound

Hi
Never tried it but
http://stackoverflow.com/questions/16070012/how-can-i-disable-sounds-played-by-qt-qmessagebox

QtVik

@mrjj Hello

How will you change the size of QDialog not the QMessageBox ?

I am doing like this:
fileDialog->resize(m_measDialogWidth, m_measDialogHeight);

Somehow it is not setting the width and height at all.
I am always getting the default width and height.

Thanks

mrjj

@QtVik
Hi
is that a Qt FileDialog or just your own QDialog based dialog ?

If you have an UI file with your dialog, you can directly set size there.

QtVik

This post is deleted!

QtVik

@mrjj No.. it is Qt FileDialog.
Following is the code:
QFileDialog* fileDialog = new QFileDialog(this);
fileDialog->setWindowTitle("Open Meas File");
fileDialog->setAcceptMode(QFileDialog::AcceptOpen);
fileDialog->setNameFilter(tr("DAT (*.dat)"));
fileDialog->setGeometry(this->x(), this->y(),this->m_measDialogWidth, this->m_measDialogHeight);
.....
if(fileDialog->exec())
{
.....
}

Note: m_measDialogWidth and m_measDialogHeight always has the previously set width/height

using setGeometry i am able to set the position but not the width and height.
why is that ?

Thanks

mrjj

@QtVik

Ok. When a platform (OS) has a FileDialog, Qt uses that one.
Called the native Dialog and that is why the setGeometry is ignored.
(on linux for instance it can remember the size so it will load some size when shown)

You can use
fileDialog->setOption(QFileDialog::DontUseNativeDialog, true);

and you can then resize it. but it uses Qt version of FileDialog.
Not the one from the OS.

QtVik

@mrjj Thank you so much :) It worked!

mrjj

@QtVik

Super.
So i guess the Qt build in dialog is just fine for you.

QtVik

@mrjj Yes. I had set the native Dialog option previously but resizing of the dialog was done prior to that . So it was not reflecting the changes. Thank you :)

Solved How to change size of QDialog??