Subj : Re: Need help with converting float to string
To   : borland.public.cpp.borlandcpp
From : Jeff Baker
Date : Sat May 22 2004 05:07 pm

Thanks Sebastian!

"Sebastian Ledesma" <labo(no_sp@m)solidyne1.com> wrote in message
news:40ae6270$1@newsgroups.borland.com...
> Jeff:
>
> I tipically use sprintf:
>
>    data =  (low_byte + 256 * (char) high_byte) / 100.0;
>    sprintf (string, "%f05.2", data);
>
> Saludos
> Sebastian
>
> "Jeff Baker" <Jbaker0623@msn.com> escribió en el mensaje
> news:40ae58aa@newsgroups.borland.com...
> > I need some help. The function listed below compiles and works but the
> > format it displays is not the kind I need. This function displays "data"
> in
> > exponential format and I need it to be in decimal format and no
> suppression
> > of trailing zeros. The ecvt() and fcvt() functions do exactly what I'm
> > looking for, however neither of these functions insert the decimal in
the
> > string. Does anyone have an idea on how to get this done?
> >
> > Note: the data is alway in x.xx format.
> >
> > [start of code]
> > #include <windows.h>
> > #include <math.h>
> >
> > void DisplayData(HWND hwnd,BYTE low_byte,BYTE high_byte)
> > {
> > char string[255],label[]="Data";
> > float data;
> > HDC hdc;
> > RECT rect;
> > rect.left = 210; rect.top = 10; rect.right = 340; rect.bottom = 23;
> > HBRUSH back_color = (HBRUSH)GetStockObject(BLACK_BRUSH);
> > COLORREF text_color = RGB(127,255,127);
> > HFONT hfnt,hOldFont;
> > hdc = GetDC(hwnd);
> > SetTextColor(hdc,text_color);
> > SetBkMode(hdc,TRANSPARENT);
> > hfnt = (HFONT)GetStockObject(SYSTEM_FONT);
> > hOldFont =(HFONT)SelectObject(hdc,hfnt);
> > if (hOldFont)
> >    {
> >    FillRect(hdc,&rect,back_color);
> >    TextOut(hdc,rect.left,rect.top,label,strlen(label));
> >    data = (FLOAT)((low_byte + (256 * high_byte)) / pow10(2));
> >    gcvt(data,4,string);
> >    TextOut(hdc,rect.left+80,rect.top,string,strlen(string));
> >    SelectObject(hdc,hOldFont);
> >    }
> > UpdateWindow(hwnd);
> > ReleaseDC(hwnd,hdc);
> > }
> > [end of code]
> >
> >
>
>

.