Comments on: sscanf with CString http://www.ucosoft.com/sscanf-with-cstring.html Free Source Code and Program Tips Wed, 21 Dec 2011 16:05:05 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Michael Yanni http://www.ucosoft.com/sscanf-with-cstring.html/comment-page-1#comment-4844 Michael Yanni Tue, 29 Mar 2011 17:45:31 +0000 http://www.ucosoft.com/archives/76.html#comment-4844 This poster does not know what he is talking about. There is a version of sscanf made for Unicode charaters. There is also a secure version of sscanf. If you use that function appropriately, you can use CStrings correctly. Here is the example described above done using _stscanf_s and CStrings: const unsigned int kuBufferSize = 20; CString strField = _T("Microsoft Bill"); CString strName(_T(""), kuBufferSize); CString strPassword(_T(""), kuBufferSize); int nItemCount = 0; nItemCount = _stscanf_s(strField, _T("%s %s"), strName, kuBufferSize, strPassword, kuBufferSize); OutputDebugString(strName); OutputDebugString(_T("\n")); OutputDebugString(strPassword); OutputDebugString(_T("\n")); This code produces this in the Debug output window in Visual Studio: Microsoft Bill These values are appropriately stored in the variables: strName = _T("Microsoft"); strPassword = _T("Bill"); nItemCount = 2; I didn't need this solution for my situation, but I was intrigued on how to solve yours. I simply needed to get an integer out of a CString, so I used the solution above except for integers. For more information, see the documentation here: http://msdn.microsoft.com/en-us/library/t6z7bya3%28v=VS.90%29.aspx This poster does not know what he is talking about. There is a version of sscanf made for Unicode charaters. There is also a secure version of sscanf. If you use that function appropriately, you can use CStrings correctly. Here is the example described above done using _stscanf_s and CStrings:

const unsigned int kuBufferSize = 20;
CString strField = _T(“Microsoft Bill”);
CString strName(_T(“”), kuBufferSize);
CString strPassword(_T(“”), kuBufferSize);
int nItemCount = 0;

nItemCount = _stscanf_s(strField, _T(“%s %s”), strName, kuBufferSize, strPassword, kuBufferSize);

OutputDebugString(strName);
OutputDebugString(_T(“\n”));

OutputDebugString(strPassword);
OutputDebugString(_T(“\n”));

This code produces this in the Debug output window in Visual Studio:

Microsoft
Bill

These values are appropriately stored in the variables:
strName = _T(“Microsoft”);
strPassword = _T(“Bill”);
nItemCount = 2;

I didn’t need this solution for my situation, but I was intrigued on how to solve yours. I simply needed to get an integer out of a CString, so I used the solution above except for integers. For more information, see the documentation here:
http://msdn.microsoft.com/en-us/library/t6z7bya3%28v=VS.90%29.aspx

]]> By: Antonio http://www.ucosoft.com/sscanf-with-cstring.html/comment-page-1#comment-4770 Antonio Fri, 27 Mar 2009 14:04:21 +0000 http://www.ucosoft.com/archives/76.html#comment-4770 Well, you are casting an object on the stack as if it is a pointer, what do you expect, no crash ? Well, you are casting an object on the stack as if it is a pointer, what do you expect, no crash ?

]]> By: support http://www.ucosoft.com/sscanf-with-cstring.html/comment-page-1#comment-4766 support Wed, 04 Feb 2009 03:07:06 +0000 http://www.ucosoft.com/archives/76.html#comment-4766 <a href="#comment-4757" rel="nofollow">@Adam Gross</a> You are completely right. @Adam Gross You are completely right.

]]> By: Adam Gross http://www.ucosoft.com/sscanf-with-cstring.html/comment-page-1#comment-4757 Adam Gross Fri, 02 Jan 2009 04:30:23 +0000 http://www.ucosoft.com/archives/76.html#comment-4757 As far as I can tell, using _tscanf_s with CString is still bad because CString with UNICODE defined is UTF16 but all of these functions expect UTF8. We either need to convert it or to find some Windows-provided ones that expect UTF16. As far as I can tell, using _tscanf_s with CString is still bad because CString with UNICODE defined is UTF16 but all of these functions expect UTF8. We either need to convert it or to find some Windows-provided ones that expect UTF16.

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