How to convert CreateProcess to ShellExecuteEx?

I use MS detour library to hook CreateProcess and it works fine on Win7. Then I want to replace the detoured CreateProcess with ShellExecuteEx so that I can use 'runas' to silently run the program with administrator priviledge. Unfortunately, the parameter type is not the same.

This is the function signature:

CreateProcess( 
         LPCWSTR lpszImageName, 
         LPCWSTR lpszCmdLine, 
         LPSECURITY_ATTRIBUTES lpsaProcess, 
         LPSECURITY_ATTRIBUTES lpsaThread, 
         BOOL fInheritHandle开发者_JAVA技巧s, 
         DWORD fdwCreate, 
         LPVOID lpvEnvironment, 
         LPWSTR lpszCurDir, 
         LPSTARTUPINFOW lpsiStartInfo, 
         LPPROCESS_INFORMATION lppiProcInfo 
      ); 

Here I call ShellExecuteEx:

SHELLEXECUTEINFO ShExecInfo;
ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask = 0 ;
ShExecInfo.hwnd = NULL;
ShExecInfo.lpVerb = NULL;
ShExecInfo.lpFile = lpszImageName; // this is obatined within deboured CreateProcess.
ShExecInfo.lpParameters = ""; 
ShExecInfo.lpDirectory = NULL;
ShExecInfo.nShow = SW_SHOW;
ShExecInfo.hInstApp = NULL; 
ShellExecuteEx(&ShExecInfo);

However, this assignment has error: ShExecInfo.lpFile = lpszImageName; VC2005 complaints the data type is not the same: "cannot convert from const unsigned char * to const char *".

But the data type is LPCWSTR for parameter lpszImageName in CreateProcess and ShExecInfo.lpFile is LPCTSTR.

If I use (const unsigned char*) to convert lpszImageName, the value of lpFile is only the first letter of lpszImageName value.

For example, if lpszImageName is "C:\windows\system32\cmd.exe". After assignment, lpFile value is only 'C'.

How can I convert from LPCWSTR to LPCTSTR? Or How could I do the convertion?

Thanks!!!

It looks like you've hooked CreateProcessW() and are attempting to map it to ShellExecuteExA(). Instead, map to ShellExecuteExW() and use the SHELLEXECUTEINFOW structure which uses wide (LPCWSTR) strings.