qt QUrl Opening a pdf

Question

I am trying to open a pdf file with the default application through Qt's "DesktopServices" class.

But I am coming up with a ShellExecute

'file:///C:/PMPS/PMPSv1/Instuctionsforuse.pdf' failed (error 2). problem.

Here is my code:

#include <QDesktopServices>
#include <QUrl>

}

void Dialog::guideButtonClicked()
{
QDesktopServices::openUrl(QUrl("file:///C:/PMPS/PMPSv1/Instuctionsforuse.pdf"));
}

try with: `QDesktopServices::openUrl(QUrl:::fromLocalFile("C:/PMPS/PMPSv1/Instuctionsforuse.pdf"));` — eyllanesc, Nov 02 '17 at 12:39
Still get the same error: ShellExecute 'file:///C:/PMPS/PMPS??v1/Instuctionsforuse??.pdf' failed (error 2). — James Sprinks, Nov 02 '17 at 12:43
Try with `QDesktopServices::openUrl(QUrl:::fromLocalFile("C://PMPS//PMPS‌v1//Instuctionsforuse‌.pdf"));` — eyllanesc, Nov 02 '17 at 12:44
Or `QDesktopServices::openUrl(QUrl:::fromLocalFile("C:\\PMPS\\PM‌PS‌v1\\Instuctionsfo‌ruse‌.pdf"));` — eyllanesc, Nov 02 '17 at 12:46
A very simple option to know the path is that you right click on the .pdf and you will have it with your browser and show the URL. — eyllanesc, Nov 02 '17 at 12:47
I refer to the format of the path, in windows it is always a problem. — eyllanesc, Nov 02 '17 at 12:50
QUrl localfile = QUrl::fromUserInput("file:///C:/PMPS/PMPSv1/Instuctionsforuse.pdf"); You can check if it is correct with qDebug() << localfile.toLocalFile(); — Xplatforms, Nov 02 '17 at 12:52

score 0 · Accepted Answer · answered Nov 02 '17 at 12:57

If you already has handlers in your Url (like file:// etc), or if your Url is already encoded and should be used without any conversion and changes, use QUrl::fromUserInput function. When the string is not already a valid URL, a best guess is performed, making various web related assumptions.

QUrl localfile = QUrl::fromUserInput("file:///C:/PMPS/PMPSv1/Instuctionsforus‌e.pdf");

You can check if it is correct with:

 qDebug() << localfile.toLocalFile();

qt QUrl Opening a pdf

1 Answers1