ShellCommandSetValue.cpp File Reference

#include "ph.h"
#include "ShellCommandSetValue.h"
#include "RegistryExplorer.h"
#include "RegistryTree.h"
#include "RegistryKey.h"

Include dependency graph for ShellCommandSetValue.cpp:

Go to the source code of this file.

Macros
#define	SET_VALUE_CMD   _T("SV")
#define	SET_VALUE_CMD_LENGTH   COMMAND_LENGTH(SET_VALUE_CMD)
#define	SET_VALUE_CMD_SHORT_DESC   SET_VALUE_CMD _T(" command is used to set value.\n")

Functions
BOOL	StringToDWORD (DWORD &rdwOut, const TCHAR *pszIn)

Macro Definition Documentation

SET_VALUE_CMD

#define SET_VALUE_CMD   _T("SV")

Definition at line 32 of file ShellCommandSetValue.cpp.

SET_VALUE_CMD_LENGTH

#define SET_VALUE_CMD_LENGTH   COMMAND_LENGTH(SET_VALUE_CMD)

Definition at line 33 of file ShellCommandSetValue.cpp.

SET_VALUE_CMD_SHORT_DESC

#define SET_VALUE_CMD_SHORT_DESC   SET_VALUE_CMD _T(" command is used to set value.\n")

Definition at line 34 of file ShellCommandSetValue.cpp.

Function Documentation

StringToDWORD()

BOOL StringToDWORD	(	DWORD &	rdwOut,
		const TCHAR *	pszIn
	)

Definition at line 36 of file ShellCommandSetValue.cpp.

{
    const TCHAR *pszDigits;
    const TCHAR *pszOctalNumbers = _T("01234567");
    const TCHAR *pszDecimalNumbers = _T("0123456789");
    const TCHAR *pszHexNumbers = _T("0123456789ABCDEF");
    const TCHAR *pszNumbers;
    unsigned int nBase = 0;
    if (*pszIn == _T('0'))
    {
        if ((*(pszIn+1) == _T('x'))||((*(pszIn+1) == _T('X'))))
        {   // hex
            nBase = 16;
            pszDigits = pszIn+2;
            pszNumbers = pszHexNumbers;
        }
        else
        {   // octal
            nBase = 8;
            pszDigits = pszIn+1;
            pszNumbers = pszOctalNumbers;
        }
    }
    else
    {   //decimal
        nBase = 10;
        pszDigits = pszIn;
        pszNumbers = pszDecimalNumbers;
    }
 
    const TCHAR *pszDigit = pszDigits;
    pszDigit += _tcslen(pszDigit);
 
    DWORD nMul = 1;
    rdwOut = 0;
    DWORD dwAdd;
    const TCHAR *pszNumber;
    while (pszDigit > pszDigits)
    {
        pszDigit--;
        pszNumber = _tcschr(pszNumbers,*pszDigit);
        if (!pszNumber)
            return FALSE;   // wrong char in input string
 
        dwAdd = (pszNumber-pszNumbers)*nMul;
 
        if (rdwOut + dwAdd < rdwOut)
            return FALSE;   // overflow
        rdwOut += dwAdd;
 
        if (nMul * nBase < nMul)
            return FALSE;   // overflow
        nMul *= nBase;
    };
 
    return TRUE;
}

Referenced by CShellCommandSetValue::Execute().