[Solved] Problem displaying pictures in different environment(in another computer)
I have wrote a program, It use QMovie to display a GIF picture and it work well in my computer. When I send this binary to my friend, and execute it on his computer, the picture is missing(just missing, but all other function still works well)
I believe the source code is fine, because I can run this program. I am sure that picture file (.GIF) is in the correct path. I have no idea why the picture just can not be displayed. Does anyone met this problem before?
output on your and on the other computer?
Sounds like you did not distribute the image plugins of Qt to your friend.
I tried to install Qt SDK on my friend's computer, and it worked.
The output of QImageReader::supportedImageFormats() on my computer is:
but on my friend's computer, it is:
My picture format is GIF, it is not on the list shown above.
There is some tutorial resource:
After put the plugin dll to the correct path. Now it works for all computers with no Qt SDK installation. Thank you for your kindly help.
I have one last question. How can I know which plugin I should pack before deploying to another computer? Is there any tool or something which can provide clue to find the which plugin was missing?
The only thing I can say is: test. Qt loads all plugins it finds at initialization, so you can't use a tool like dependency walker.