How to convert DWORD to char *?

Question

I am trying something like this,

PROCESS_INFORMATION processInfo = .....
strcat( args, processInfo.dwProcessId);

where args is a char * which I need to pass as an argument to another executable.

Answer 1

You can use sprintf

char procID[10];
sprintf(procID, "%d", processInfo.dwProcessId);

This will convert the processInfo.dwProcessId into a character which can then be used by you.

Answer 2

MSDN has pretty good documentation, check out the Data Conversion page.

There's sprintf() too.

Answer 3

To convert DWORD to char * you can use _ultoa / _ultoa_s

see here might help you.link1

Answer 4

While not directly "converting to a char*", the following should do the trick:

std::ostringstream stream;
stream << processInfo.dwProcessId;
std::string args = stream.str();

// Then, if you need a 'const char*' to pass to another Win32
// API call, you can access the data using:
const char * foo = args.c_str();