Re: [Interest] Detecting if the application is already running from another user account

On sexta-feira, 3 de junho de 2016 15:49:29 BRT Etienne Sandré-Chardonnal wrote: > The issue with file locking, is every OS does not have a system-wide > user-writable standard folder. There is /tmp on linux/unix which is > standard, but AFAIK windows only has per-user temporary file, and system >

Re: [Interest] Detecting if the application is already running from another user account

On sexta-feira, 3 de junho de 2016 15:52:47 BRT Etienne Sandré-Chardonnal wrote: > By the way, is there any reason not having a kind of tryLock in > QSystemSemaphore? It's barely usable with an infinite lock One of two options: a) not possible to implement with all backends; or b) no one thoug

Re: [Interest] Animate rotation at given speed, how to set direction?

2016-05-15 15:08 GMT+02:00 Elvis Stansvik : > Hi folks, > > With RotationAnimation I can control the direction of the rotation > (cw/ccw). But I'd like to animate rotation at a certain speed, using > SmoothedAnimation: > > Behavior on rotation { > SmoothedAnimation { >

Re: [Interest] Define map of static items in QML

2016-06-03 17:55 GMT+02:00 Elvis Stansvik : > Hi Alejandro, > > I realized I never got back to this and answered you, sorry about that. > > 2016-04-02 17:02 GMT+02:00 Alejandro Exojo : >> El Wednesday 30 March 2016, Elvis Stansvik escribió: >>> > not at all if that suit you for your key, it's all g

Re: [Interest] Define map of static items in QML

Hi Alejandro, I realized I never got back to this and answered you, sorry about that. 2016-04-02 17:02 GMT+02:00 Alejandro Exojo : > El Wednesday 30 March 2016, Elvis Stansvik escribió: >> > not at all if that suit you for your key, it's all good. objectname is >> > just a string property after a

Re: [Interest] Detecting if the application is already running from another user account

> Thanks for all those suggestions. Of course there are platform specific > solutions, > but I'd like to keep the code 100% cross platform everywhere it's possible. > > The issue with file locking, is every OS does not have a system-wide > user-writable standard folder. > There is /tmp on linux/u

Re: [Interest] [Qt3D] Troubles to migrate to Qt5.7rc

I finally found that the QFrameGraph class was renamed as QRenderSettings. And now I have the following error : No render surface selector found in frame graph I suspect that I need few new initialisation steps with Qt 5.7 2016-06-03 15:21 GMT+02:00 Xavier Bigand : > There is no more the class Q

Re: [Interest] Detecting if the application is already running from another user account

By the way, is there any reason not having a kind of tryLock in QSystemSemaphore? It's barely usable with an infinite lock 2016-06-03 15:49 GMT+02:00 André Somers : > > > Op 03/06/2016 om 15:26 schreef Nye: > > > > On Fri, Jun 3, 2016 at 4:23 PM, André Somers > wrote: > >> Windows tends to mess

Re: [Interest] Detecting if the application is already running from another user account

Dear all, Thanks for all those suggestions. Of course there are platform specific solutions, but I'd like to keep the code 100% cross platform everywhere it's possible. The issue with file locking, is every OS does not have a system-wide user-writable standard folder. There is /tmp on linux/unix

Re: [Interest] Detecting if the application is already running from another user account

Op 03/06/2016 om 15:26 schreef Nye: On Fri, Jun 3, 2016 at 4:23 PM, André Somers > wrote: Windows tends to mess with you here, applying the same kinds of tricks they introduced for the registry long ago to the file system now too. What tricks do

[Interest] qmake replace functions

Hi, with Qt5 I can do like this: $$shell_path( $$absolute_path( $${OUT_PWD}/../../executable ) ) but in Qt4 there is no shell_path() and absolute_path() functions. So my question is it possible to do something similar with Qt4? Thank you. ___ Intere

Re: [Interest] Detecting if the application is already running from another user account

On Fri, Jun 3, 2016 at 4:23 PM, André Somers wrote: > Windows tends to mess with you here, applying the same kinds of tricks > they introduced for the registry long ago to the file system now too. What tricks do you mean? Perhaps I'm not up to date with the win API, but I don't remember somethi

Re: [Interest] Detecting if the application is already running from another user account

Op 03/06/2016 om 15:08 schreef Thiago Macieira: On sexta-feira, 3 de junho de 2016 11:40:31 BRT Etienne Sandré-Chardonnal wrote: Hi, I would like to detect if my application is already running from another user account and warn the user. Create a file in a public place (like /tmp) that indic

[Interest] [Qt3D] Troubles to migrate to Qt5.7rc

There is no more the class QFrameGraph and I don't understand how I associate my techniqueFilter to the scene. I used to add the frameGraph as component to the rootEntity. I also have a segfault in textureimage.cpp and the following error in the application output : No renderer settings componen

Re: [Interest] Detecting if the application is already running from another user account

What about a pid file, check if process still alive, no matter the user that should work. On Fri, Jun 3, 2016 at 9:14 AM, Nye wrote: > Hello, > Yes, you are correct, I forgot all about that although I was thinking more > of a platform-specific solution. Also the class is somewhat inconvenient as

Re: [Interest] Detecting if the application is already running from another user account

On sexta-feira, 3 de junho de 2016 16:05:29 BRT Igor Mironchik wrote: > I think that better to solve this task with shared memory... You can > look at the example in QtCreator sources (qtsingleapplication.cpp) singleapp applies only to one user. DO NOT use shared memory across users. You don't w

Re: [Interest] Detecting if the application is already running from another user account

On sexta-feira, 3 de junho de 2016 11:40:31 BRT Etienne Sandré-Chardonnal wrote: > Hi, > > I would like to detect if my application is already running from another > user account and warn the user. Create a file in a public place (like /tmp) that indicates it's running. You can use a QLockFile,

Re: [Interest] Detecting if the application is already running from another user account

Hello, Yes, you are correct, I forgot all about that although I was thinking more of a platform-specific solution. Also the class is somewhat inconvenient as the behaviour is a bit different on Windows and *nix. You could try some platform-specific code handling it (e.g. Windows does allow for glo

Re: [Interest] Detecting if the application is already running from another user account

Hi, I think that better to solve this task with shared memory... You can look at the example in QtCreator sources (qtsingleapplication.cpp) On 03.06.2016 15:54, Etienne Sandré-Chardonnal wrote: But how can I test if another app is already running with QSystemSemaphore? I can set a semaphore w

Re: [Interest] Detecting if the application is already running from another user account

But how can I test if another app is already running with QSystemSemaphore? I can set a semaphore with a single ressource (initial value = 1) and lock it, but there is a single method aquire() which blocks forever if the value is 0. So I can just make the second process freeze forever until the fir

Re: [Interest] Help parsing output of "mksquashfs" command

2016-06-03 12:32 GMT+02:00 Juan Navarro : > Hey Elvis, thank you for the tip. I'm convinced that this is the source of > the problem: the "output device" to which "mksquashfs" is writing, doesn't > show any number of "available columns" in my C++ code, thus it is probably > generating a progress ba

Re: [Interest] Detecting if the application is already running from another user account

Hello, Have you tried a system semaphore? It should work in this case as far as I know. ___ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest

Re: [Interest] Help parsing output of "mksquashfs" command

Hey Elvis, thank you for the tip. I'm convinced that this is the source of the problem: the "output device" to which "mksquashfs" is writing, doesn't show any number of "available columns" in my C++ code, thus it is probably generating a progress bar of length 0. With a pseudo terminal as you descr

[Interest] Detecting if the application is already running from another user account

Hi, I would like to detect if my application is already running from another user account and warn the user. I have tried QSharedMemory, but it seems that by design it is restricted to a user namespace. I can create two shared memory segments with the same key on the two user accounts and they wo