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Subject:
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double to string?
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Posted By:
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chris97b
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Post Date:
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9/22/2003 8:19:01 PM
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I need to output a double to a static control. Is there any way to convert a double to a string? (I know about the SetDlgItemInt function, but I believe that only works for ints. I MUST make the output a double, or some data type that supports decimals) thanks, Chris
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Reply By:
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xgbnow
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Reply Date:
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9/23/2003 8:19:15 AM
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You can use the MFC CString class to create a string object. One of the class members Format is able to do the conversion for you.
CString s;
double x;
x = 23.12345;
s.Format("%7.3f", x);
// Outputs 23.123
AfxMessageBox(s);
Hope this helps. You can read more about CString in the help file.
Larry Asher
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Reply By:
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chris97b
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Reply Date:
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9/23/2003 1:54:10 PM
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Excellent, that works great. One more Q though, :) How would I go about getting a double from an edit box also? Thanks
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Reply By:
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xgbnow
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Reply Date:
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9/23/2003 1:58:19 PM
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Going the other way, I believe you can use the atof() Function. This converts an ascii value to a real.
double x;
x = atof(m_dStringVal);
Hope that works.
Larry Asher
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Reply By:
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chris97b
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Reply Date:
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9/23/2003 2:34:19 PM
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Actually I found an even easier way. just associate a double with the edit control, and when you call UpdateData, you can then just use the member variable. THanks again for the help on output.
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