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Float to String, Unicode?

Started by DefCom Sep 9, 2003 at 2:33 AM 3 replies 550+ views

Original Post

Sep 9, 2003 at 2:33 AM

I hope someone can help, i have been at this for too many hours to say. I am writing a small track timer application for a Pocket PC using embedded VC++. When i try to Send the time elapsed data to a Static Control, it appears as jibberish (square boxes mainly). The code i use is


char time[10];
float t = timer.getTimeElapsed();
_gcvt(t, 10,time);		
SendMessage (hwndTimeC, WM_SETTEXT, 0, (LPARAM) time);

I have tried this in a console app in VC6 and it is ok, so i am assuming it is the string conversion. Any advise would be much appriciated. Thanks.

PHRICTION

Sep 9, 2003 at 3:03 AM

Are you using unicode?

If so you will have to use ''WCHAR'' (or better yet, ''TCHAR''), in place of char. And I don''t this you can use _gcvt because it deals with chars. Try wsprintf mabye.

Hope that helps.

DefCom

Author

DefCom

Sep 9, 2003 at 4:05 AM

Thanks for the responce,
I realised as soon as i presses post that a sprintf may work,

the following code does it.


TCHAR szTime[10];
float t = timer.getTimeElapsed();
wsprintf(szTime, TEXT("%.5f"),t);		
SendMessage (hwndTimeC, WM_SETTEXT, 0, (LPARAM) szTime);

Qw3r7yU10p!

Sep 9, 2003 at 4:55 AM


#include <sstream>

template<typename T>
std::wstring toWString(const T& obj) {
    std::wstringstream ss;
    ss << obj;
    return ss.str();
}

[edited by - petewood on September 9, 2003 5:56:17 AM]

Lektrix

Sep 9, 2003 at 9:52 AM

quote:

Original post by petewood


#include <sstream>

template<typename T>
std::wstring toWString(const T& obj) {
    std::wstringstream ss;
    ss << obj;
    return ss.str();
}

Or implement a generic function by using templated std::basic_string/std::basic_stringstream (std::string/std::wstring are std::basic_string typedefs).

OP: boost::lexical_cast

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[edited by - Lektrix on September 9, 2003 10:54:13 AM]

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