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Beginner Question on deploying Qt Applications.

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sheperson

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Monday, June 21st 2010, 2:24am

Beginner Question on deploying Qt Applications.

Hi,
I have created a small application in Qt (using Qt designer) and want to run it on another machine, but when I run it, I get error messages like mingwn10.dll is missing.
I know the application needs the Qt runtime, but I have not clue how to install it on the other machine.

Is it enough to copy those missing dlls to the other machine? They are large dlls and I don't think it is neccassry to copy them all only to run a programm smaller than 100 KB.

Please give me some clues, because I am an absolute beginner.
Thanks in advance. ?(

huangxinhao

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Monday, June 21st 2010, 3:28am

It is easy to make a release for windows

just find missing dlls in qt folder, and ship them with your exe file. And you will be asked for more DLLs :-)

This post has been edited 2 times, last edit by "huangxinhao" (Jun 21st 2010, 4:48am)

sheperson

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Monday, June 21st 2010, 11:02am

Really?
If that is the solution, the I should say Qt is not efficient at all!
Having to copy several large dlls to run only a small application is not efficient at all.
At least there should be another way to launch those dlls, such as a single exe file or something like that.

Thanks for your reply!
?(

slevon

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Monday, June 21st 2010, 12:54pm

Hi,
huangxinhao mentioned the easiest way out, due to you said you are a beginner. If you want to deliver your application without copying the dlls (wich is much smaller solution than .net-Framework by the way) you have two more choices:
1) you can use a installer-tool to check if there are QT-Dlls installed on your target machine and install the DLL only if they are needed.
2) use Google to find out how Qt-Applications are built 'staticly' :
example: http://doc.qt.nokia.com/4.1/deployment-w…g-qt-statically

hope this help,
slevon

This post has been edited 1 times, last edit by "slevon" (Jun 21st 2010, 2:29pm)

sheperson

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Monday, June 21st 2010, 3:15pm

Quoted from "slevon"


Hi,
huangxinhao mentioned the easiest way out, due to you said you are a beginner. If you want to deliver your application without copying the dlls (wich is much smaller solution than .net-Framework by the way) you have two more choices:
1) you can use a installer-tool to check if there are QT-Dlls installed on your target machine and install the DLL only if they are needed.
2) use Google to find out how Qt-Applications are built 'staticly' :
example: http://doc.qt.nokia.com/4.1/deployment-w…g-qt-statically

hope this help,
slevon
Hi,
Thanks for your reply. I will give it a try, and see what happens.
Thanks again!
^^