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Assignment 1...????

Posted by tshax

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tshax

Assignment 1...????
January 18, 2010 04:24PM

Registered: 11 years ago
Posts: 68
Rating: 0

I am triying to copy a picture into a program but is not showing. The code from the assignment where i think it must be inserted a picture is:
QPixmap pixmap(../Photo.jpg);...

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Jgrand0

Re: Assignment 1...????
January 18, 2010 04:42PM

Registered: 9 years ago
Posts: 13
Rating: 0

Then try inserting the whole filepath in there. I think Vista also has a similar quibble.

e.g

QPixmap pixmap("C:/blabla/blabla/Photo.jpg" winking smiley

;

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tshax

Re: Assignment 1...????
January 19, 2010 08:48AM

Registered: 11 years ago
Posts: 68
Rating: 0

It did work, now am done with assignment 01.....
smileys with beer

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tlaks

Re: Assignment 1...????
January 29, 2010 07:27AM

Registered: 9 years ago
Posts: 2
Rating: 0

Thanks Jgrand0.

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Anonymous User

Re: Assignment 1...????
February 17, 2010 05:54PM

Rating: 0

Hi,
I tried to give full path and even changing the slashes forward and backward and it did not work for me. I am getting the error Collect 2: Id returned 1 exit status. Would you please help me. It s getting late and I am worried.I am using XP in machine and Vista in another machins but it is not working in both.

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gabam

Re: Assignment 1...????
February 17, 2010 08:28PM

Registered: 9 years ago
Posts: 25
Rating: 0

Is the problem just related to the picture ie does it work without the pic? If with the pic, Is your pict in the same folder as the program?

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travis512

Re: Assignment 1...????
February 17, 2010 08:57PM

Registered: 10 years ago
Posts: 48
Rating: 0

Not sure if it helps but mine wasn't able to compile until i shortend the project directory path where main.cpp and photo.jpg were located...
C:\bla\bla\bla\bla\bla\bla\bla\bla> was giving issues, not sure why but when i changed the project folder to
C:\bla\bla> ie C:\UNISA\COS2144> it compiled fine after that?

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Anonymous User

Re: Assignment 1...????
February 18, 2010 08:48AM

Rating: 0

hi friend,
I typed as it is given in the assignment. Can you please tell me how to check without inserting the picture. the picture is in the folder. The command I used is this:

QPixmap pixmap("D:/wise_2009_unisa/youth/photo.jpg" winking smiley

;
QLabel pixmapLabel;
pixmapLabel.setPixmap(pixmap.scaled(450,450,Qt::KeepAspectRatio));

I have photo.jpg in the folder youth. but I cannot see in the open folders in Qt. I opened My Computer and I can see it there.
Thanx
Mary

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r1 G9rd

Re: Assignment 1...????
February 18, 2010 02:31PM

Registered: 10 years ago
Posts: 94
Rating: 0

I copied the code as is given in the assignment. Copied a random photo to the C:\Unisa\COS214 like Travis has. It gave me an error first but when changing one of the slashes it worked. I'm don't have my app with me now, but if I remember correctly I actually have to opposite slashes in my directory. But I will have to confirm that later tonight. But otherwise it works just fine now.

I agree with Travis: Rather just copy it to where you do your projects, preferably with an easier path. That way you decrease your chances of errors.

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gabam

Re: Assignment 1...????
February 18, 2010 07:27PM

Registered: 9 years ago
Posts: 25
Rating: 0

If your photo is in folder youth, then use "../photo.jpg"... that is assuming your picture is called photo.jpg.
To remove the line place/* before it and */ after it...
Cheers,

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r1 G9rd

Re: Assignment 1...????
February 18, 2010 10:56PM

Registered: 10 years ago
Posts: 94
Rating: 0

I checked my path.. It's "C:/Unisa/Winter.jpeg"

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Anonymous User

Re: Assignment 1...????
February 18, 2010 11:06PM

Rating: 0

HI,
THANX TO EVERYONE. I could build the program. Now my problem is it is not running. error code 255. microsoft error. I am using vista home edition. Any idea to go about

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Anonymous User

Re: Assignment 1...????
February 18, 2010 11:19PM

Rating: 0

hi, thanx. i tried ur way of giving path. its fine its compiling but not running. giving microsoft windows stopped working. code 255. i keep trying. tell me if u know what shold i do

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r1 G9rd

Re: Assignment 1...????
February 18, 2010 11:28PM

Registered: 10 years ago
Posts: 94
Rating: 0

Not to sure about that one. I do my Qt coding on my XP machine. I tried googling it and gave me one hit that mentioned something about the file could not be found. Just make double sure again that you have the correct filepath. Recheck the code that you copied from the book also.

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Anonymous User

Re: Assignment 1...????
February 19, 2010 06:14AM

Rating: 0

Hi,
I did it. using perr to peer I loaded the Qt into another machine with XP. It worked in Xp. I struggled a lot in vista. I did it finally and managed to send it . U were so helpful.Thank you so much.

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robanaurochs

Re: Assignment 1...????
March 31, 2010 10:06PM

Registered: 14 years ago
Posts: 1,424
Rating: 0

The direction of your slashes is very important in C and C++. If you recall from COS111/112, there are a number of escape characters that rely on the back-slash in order to be inserted into the string. Thus, if you want the back-slash itself, you need to double it first. eg. if your path is C:\mydata\photo.jpeg, then your C++ string must be "C:\\mydata\\photo.jpeg"

To be safe, you can just keep it in UNIX-style using the forward slash. Most file paths get parsed by QDir anyway using the QDir::fromNativeSeparators or QDir::toNativeSeparators functions so the operating system will always get the correct slashes.