Does QFileOpenEvent supported on Windows? If no, how can I achieve it?
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I am currently developing an application on Windows, but my deployment target is to be cross-platform. I know that I can sub-class
QApplicationand override itseventmethod to detect theQFileOpenEvent, but the docs said that this class works on macOS only. So what's the method to detect the similar features on Windows (and even better, Linux/X11)?I know someone had raised a Qt Bug (for example #2222) but it seems no one has commented on the bug and fixed it.
For your reference, after I had built the detection mechanism by using the
QStringList QCoreApplication(int &argc, char *argv[]).arguments()method, Windows file managerexplorer.exestarts a whole new process that is independent from the already-has(ve)-opened window(s) processes, resulting in a whole new sub-classedQApplicationinstance inducingqApp->closeAllWindows()only closes a part of all the opened windows which theoretically all should be treated as a single application.I once thought that this was impossible as the Kate text editor by KDE, which also uses the Qt, has also encountered the exactly same problem. I am still wondering if this is possible.
Any help will be greatly appreciated! Thanks.
-
I am currently developing an application on Windows, but my deployment target is to be cross-platform. I know that I can sub-class
QApplicationand override itseventmethod to detect theQFileOpenEvent, but the docs said that this class works on macOS only. So what's the method to detect the similar features on Windows (and even better, Linux/X11)?I know someone had raised a Qt Bug (for example #2222) but it seems no one has commented on the bug and fixed it.
For your reference, after I had built the detection mechanism by using the
QStringList QCoreApplication(int &argc, char *argv[]).arguments()method, Windows file managerexplorer.exestarts a whole new process that is independent from the already-has(ve)-opened window(s) processes, resulting in a whole new sub-classedQApplicationinstance inducingqApp->closeAllWindows()only closes a part of all the opened windows which theoretically all should be treated as a single application.I once thought that this was impossible as the Kate text editor by KDE, which also uses the Qt, has also encountered the exactly same problem. I am still wondering if this is possible.
Any help will be greatly appreciated! Thanks.
If you want only a single instance of your application running you should take a look at QtSingleApplication
