Qt3 to Qt4 printer setup confusion

[impeteperry]

In QT3 the code

QPrinter myprinter;	// = new QPrinter();
	myprinter.setPageSize( QPrinter::Letter );
	myprinter.setOrientation( QPrinter::Portrait );
	myprinter.setColorMode( QPrinter::Color );
	myprinter.setFullPage ( true );
	ret = myprinter.setup();
	if( ret == true )
	{
		QPainter p( &myprinter );

QPrinter myprinter;	// = new QPrinter();
	myprinter.setPageSize( QPrinter::Letter );
	myprinter.setOrientation( QPrinter::Portrait );
	myprinter.setColorMode( QPrinter::Color );
	myprinter.setFullPage ( true );
	ret = myprinter.setup();
	if( ret == true )
	{
		QPainter p( &myprinter );

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gave the user of a program the oppurtunity to change the default perameters for a print out. Qt4 says to use "QPrintDialog printDialog" for this.
The "Detailed Description" for this function says

Typically, QPrintDialog objects are constructed with a QPrinter object, and executed using the exec() function.

QPrintDialog printDialog(printer, parent);
if (printDialog.exec() == QDialog::Accepted) {
// print ...
}

I am a bit of a newbie in deciphering Qt4's style of documentation and with no print examples that I can find I need help.

Thanks

[jacek]

QPrintDialog printDialog(printer, parent);
if (printDialog.exec() == QDialog::Accepted) {
// print ...
}

It's a Qt4 equivalent of:

ret = myprinter.setup();
if( ret == true )
{
   // print ...
}

ret = myprinter.setup();
if( ret == true )
{
   // print ...
}

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The "print ..." part didn't change much in Qt4, i.e. it's something like this:

QPainter p;
p.begin( &myprinter );
p.setPen( ... );
p.drawLine( 10, 10, 100, 100 );
...
p.end();

QPainter p;
p.begin( &myprinter );
p.setPen( ... );
p.drawLine( 10, 10, 100, 100 );
...
p.end();

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[impeteperry]

Thanks, actually I am able to print ok in Qt4, but what I wanted is to display a window similar to the one i get with

ret = myprinter.setup();

in Qt3.

[jacek]

what I wanted is to display a window similar to the one i get with ret = myprinter.setup(); in Qt3.

Then try QPageSetupDialog.

[impeteperry]

Thanks. I am new to this and am is the learning process and am totally confused.. I would appreciate it if, using the code snippit in my original post, you wold show the code to do what the

ret = myprinter.setup();

did in Qt3.

Thanks

pete

[jacek]

I am new to this and am is the learning process and am totally confused.. I would appreciate it if, using the code snippit in my original post, you wold show the code to do what the did in Qt3.

It's something like:

#include <QPageSetupDialog>
...
QPrinter myprinter;
myprinter.setPageSize( QPrinter::Letter );
myprinter.setOrientation( QPrinter::Portrait );
myprinter.setColorMode( QPrinter::Color );
myprinter.setFullPage ( true );
 
QPageSetupDialog dialog( &myprinter, this );
if( dialog.exec() == QDialog::Accepted ) {
   ...
}

#include <QPageSetupDialog>
...
QPrinter myprinter;
myprinter.setPageSize( QPrinter::Letter );
myprinter.setOrientation( QPrinter::Portrait );
myprinter.setColorMode( QPrinter::Color );
myprinter.setFullPage ( true );

QPageSetupDialog dialog( &myprinter, this );
if( dialog.exec() == QDialog::Accepted ) {
   ...
}

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[impeteperry]

Thanks a whole lot. You gave me the clue I was lookng for. I forgot the "#include"
What I had was

QPrintDialog dialog(&myprinter, this);
    if (dialog.exec() == QDialog::Accepted)

QPrintDialog dialog(&myprinter, this);
    if (dialog.exec() == QDialog::Accepted)

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but not the #Include.
This gives me the "dialog" I was looing for.

Life is simple when you know what you are doing. Now I can go away happy.

Thanks again.