[Qt-qml] Qml Application Deployment - What needs to be deployed to support QML image formats?

[Jason H]

use the Depends tool (google it) to see what DLLs it needs and Filemon to see 
how it resolves the DLLs.





________________________________
From: "Robinson, David" <David.Robinson at anite.com>
To: qt-qml at trolltech.com
Sent: Thu, August 26, 2010 6:37:54 AM
Subject: [Qt-qml] Qml Application Deployment - What needs to be deployed to 
support QML image formats?

 
I’m testing QML application deployment to a Windows PC where no Qt software has 
previously been installed to see what’s involved.
 
I have a C++ application that creates a QDeclarativeView and loads a QML local 
file. The QML local file happens to be the flickr example with some added 
multimedia support using the Qt mobility API.
 
The application runs & locates the imports & plugins required but something 
relating to image format support is still missing. The following is a summary of 
the configuration so far for anyone attempting the same: -
	1. Qt dll’s needed are local      to the exe.
	2. QML components are located in a      directory tree relative to the QML 
local file
	3. Declarative Imports are located      in a directory tree structure relative 
to the exe eg Qt/Multimedia etc
	4. Backends are located in a ‘plugins’      directory tree relative to the 
environment variable QTDIR. This resolves      errors likeno service found for -      
"com.nokia.qt.mediaplayer" etc
	5. The exe install directory has been added to the path so      that imports 
built on Qt dll’s can find their dependencies. (I can’t      see any alternative 
except dll duplication for each import dll & that’s      worse!).
 
Now when the app runs the QML is loaded the multimedia import is located & the 
backends are found but even though I have included the imports for 
‘imageformats’, I get ‘image format unsupported’ errors for all jpg images when 
the QML loads the RssModel delegates.
 
Does anybody know what needs to be deployed to support QML jpg image formats?
 
Regards
David Robinsion
 

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