Qt deploying qgif4.dll plugin for QMovie - qt

I'm having problems with deploying an application on Windows that displays an animated gif. For this purpose I use a QMovie and it works fine if I launch it from QtCreator. I gathered the files that are needed to run the application, and I can launch it just fine, but the gif won't show up.
I read this page and came to the conclusion that I need to add the qgif4.dll plugin which is located in qt/bin/plugins/imageformats. I tried copying it into a plugins folder next to the application, also plugins/imageformats, but it still doesn't work. I also tried to
QApplication::addLibraryPath(QDir::currentPath());
and copy the qgif4.dll file next to my executable - without any success. How do I fix this?

Put it in ./imageformats, relative to the executable.

Related

javafx jar builds fine but doesn't open

So i created a javafx project, it has 3 packages, application, controller, and an images package that holds all the images im using. The program runs fine if i just compile and run, no errors. However, when i create a jar from it, by selecting the build.fxbuild, everything goes smoothly and it tells me it is successful but when i try to double click the jar file nothing opens but java starts running in the background until i force close it. Im running OSX yosemite, and im on java 1.8 if that helps at all. I've tried making the jar through the export option but it doesnt run either and just says that it cant open the file. The weird thing is i made another javafx project just to see if it would work, same settings but just something simple, a window that pops up and says a line, then exported to a jar by clicking build.fxbuild and when i double click the jar it made it works perfectly.
I'm at a loss for what is preventing my other javafx project from working as a jar file and the other similar posts ive found on here haven't solved it either. Any ideas?

Why Files misteriously disappear from xcode with this strange symptom?

I use time machine and drop box to synchronize stuffs.
Recently I found that some files are gone.
However, the project compiles just fine as if the file is there. My friend cannot compile though.
This is very frustating. I got to find the missing files and then restore it from time machine and then readd that to xcode. I don't even know what files are missing.
I used dropbox and time machine. Looks like file disappear, the file names becomes "red" in xcode for a while and then poof it's gone. Xcode automatically remove the files from the project. The project still compiles fine which is frustating. If the project doesn't compile, I will know ah this file is missing.
Looks like somehow xcode still have the file but doesn't show it. Files is not on finder either.
What could possibly be the explanation and how to fix that.
I have clean projects to make sure that my computer do not use cached files.
It still compile fines in my computer
The file is still missing in project navigator
My friends' computer that uses the EXACT same files (connected to drop box) cannot compile
For example, xcdatamodeld files are crucial. In my computer it still run fine without that file even though that file is obviously needed. Xcode behaves as if the file is there all along.
My friends' try to compile the project and crash.
Also there is a PNG file. In my computer it runs fine with the icons showing up. In my friends computer the icons doesn't show up at all.
For anyone who still have the problem, in my case Xcode6. It turns out somehow the "Show only files with source control status" and "Show recent file button" is enable. It located in the bottom of left sidebar.
This somehow happen after I update os to Yosemite.
Cheers
Go to the project navigator (top left folder symbol). Files that are not found by XCode are displayed in red. But since your project compiles fine, there should not be any that are required. Now click one of the "missing" files to activate it. Open the utility area on the right side, and show file inspector. Under "location" you find the full path of this file. Probably, your XCode project uses just references to these "missing" files that are stored somewhere else, and not in your project folder.
I had the same problem ..then I added the files explicitly into our project…which resulted into Duplicate Symbols error …we solved that by following….
In Your Project go to targets-
At the bottom Bar of your Targets there are three options..
1.Add Target
2. Validate Settings
3. Build RUle..
Click on validate Settings….it will ask for you to remove the Duplicated files from the project do it…ur project would run fine

QWebview examples: only runs in specific directory

I'm trying to create a Qt app with a webview. I started out with a very simple UI with nothing more than a QWebview. When trying ui->webview->SetUrl("http://google.com"); the application crashes on something with openssl.
Auto configuration failed
3348:error:0200107B:system library:fopen:Unknown error:.\crypto\bio\bss_file.c:169:fopen('c:cygwinhomeAdministrateurbuildslavefull-windows_xp_32buildgpac_extra_libs/c:cygwinhomeAdministrateurbuildslavefull-windows_xp_32buildgpac_extra_libs/ssl/openssl.cnf','rb')
3348:error:2006D002:BIO routines:BIO_new_file:system lib:.\crypto\bio\bss_file.c:174:
3348:error:0E078002:configuration file routines:DEF_LOAD:system lib:.\crypto\conf\conf_def.c:199:
I continues trying the examples. Domtraversal is one of the easier applications so i tried to build and run this. It works.
Changed the url to "https://gmail.com" which also works (so no ssl issues there).
When i run the debug or release .exe it works normally (qt's bin path is in my path var so there are no dll problems), but when i move the executable to say, my Desktop it does not run.
I've tried several different things:
when i have any tree with the same amount of folders up to "build-domtraversal-Desktop_Qt_5_0_2_MSVC2010_32bit-Debug" as the folder it is build in continues by release with the executable in it (so: c:/test/test/test/test/test/test/build-domtraversal-Desktop_Qt_5_0_2_MSVC2010_32bit-Debug/release/app.exe) it works
When i add folders inside the release folder (...-Debug/release/test/test/app.exe) it works
When i change the name of either "build-domtraversal-Desktop_Qt_5_0_2_MSVC2010_32bit-*" or release folders it does not work (exept for the end of the build folder name)
When i change the name of the app itself it works.
When i change the folder structure to D:/* it does not work
When i turn off shadow build it does not work anymore in debug mode either. Unless i move the output .exe back into a folder structure where it did work.
There must be a path somewhere in the .pro.user or somewhere else i haven't thought about. Can anyone point me in the right direction? Cause right now I'm starting to believe in magic...

QPixmap image loading problem

Basically I am trying to load the image as a texture using QPixmap:
texture[T_WALL] = bindTexture(QPixmap(":/images/wall.png"), GL_TEXTURE_2D);
The code works on my development machine, but not in the vm / other pcs without QT. Initially I was using jpegs and just assumed that I messed up the plugins, but as I understand, no plugins are needed for png files so I have no idea where the problem is.
Results are the same when loading local files and using Qt resources.
I am deploying libgcc_s_dw2-1.ddl, mingwm10.dll, QtCore4.dll, QtGui4.dll, QtOpenGL4.dll. Do I need anything else?
Try adding an imageformats directory to your application directory and put qmng4.dll there. See my answer to the question Qt dll deployment on windows
If it still does not work, get the Sysinternals suite which contains dgbview.exe that allows you to watch qDebug messages (even for release builds).

QMovie doesn't show GIF file in Mac

In my project, I use QMovie as a loading bar. It works well in Windows. However, I moved my project to Mac and it didn't work anymore.
The GIF image file is in the resource file. I tried using both resource file path and absolute file path. But, it seems not okay.
Thanks
Gif capacity is done with a plugin. Your application needs to be able to load qgif4 plugin at runtime to be able to display gif
=> make sure your gif imageformat plugin is compiled, deployed and in your application library path (note that these paths can be checked at runtime using QCoreApplication::libraryPaths
I used QPaintEvent and QRect to show loading animation. Now, the problem was solved by following MoviePlayer example of Qt using QLabel::setMovie function.

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