problem in using str.format()

Question

4.00/5 (1 vote)

See more:

hai and a very good morning / afternoon/ evening to all of the user of codeguru,, i would like to ask bout how to use the operation of .format();

i tried to convert DWORD to CString

currently using visual studio 2010, making project of MFC

here is the sample code that i have done,

C++

// sample of my code

DWORD abc;

CString temp;

temp.format("%x", abc); // there is an error at the "."

while i m using other format of .format();
it run properly, but did not give out the answer as what it propose to be, while when i re-run it, the answer keep on changing~

DWORD def;

CString ghi;

ghi.temp(_T("%x", def));

Posted 3-Sep-12 16:50pm

xnold

Updated 23-Mar-13 14:57pm

v4

Add a Solution

4 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

xnold · Answer 1 · 2012-09-03T19:55:00

Solution 5

btw guys.. i would like to ask bout..
what is '_T'??

Posted 3-Sep-12 19:55pm

xnold

Comments

JF2015 4-Sep-12 2:39am

See here:
http://msdn.microsoft.com/en-us/library/se784sk6.aspx

**JF2015** · Answer 2 · 2012-09-03T17:58:00

Solution 3

See this code which is working. You must also make sure to initialize "abc" before using the variable.

// sample of my code
DWORD abc = 12345; 
CString temp; 
temp.Format(_T("%lu"), abc);

AfxMessageBox(temp);

Posted 3-Sep-12 17:58pm

JF2015

Kuthuparakkal · Answer 3 · 2012-09-03T17:33:00

Solution 2

format used is wrong. %lu is the right one when you convert DWORD to CString.

C++

temp.format("%lu", abc);

On conversion CString to DWORD the effective error free approach would be:

C++

abc= atol((char*)(LPCTSTR)temp);

Now you can verify both conversions.

Thanks,

Kuthuparakkal

Posted 3-Sep-12 17:33pm

Kuthuparakkal

xnold · Answer 4 · 2012-09-03T17:07:00

Solution 1

awww.. nvm.. i just found out my prob..
"temp.format("%x", abc);" prob was solve after i add 'L' in front of "%x",...

Posted 3-Sep-12 17:07pm

xnold

Updated 3-Sep-12 17:53pm

v2