Low-level error conditions on QImage.load()

[jacek]

You can use QImageReader class and its error() and errorString() methods.

What does QImageReader::supportedImageFormats() return? Your Qt probably wasn't compiled with GIF support.

[bruccutler]

How do I compile Qt with GIF support or is that something that TrollTech has to do?

[jpn]

Try running "configure -help" wherever you Qt is installed to (eg. C:\Qt\4.2.2).

It will show you that the default option for GIF support is "-no-gif". To compile Qt with GIF support turned on, pass "-qt-gif" as a parameter to the configure.

C:\Qt\4.2.2\> configure -qt-gif

Once the configure finishes, you are ready to recompile Qt. Follow the instructions as it depends on the compiler you are using.