C / C++ / MFC

darkcloud.42o wrote:

//What i need to do is pass a string from the main() to the threadprocess.. Please Help.

void __cdecl threadprocess( void *params )
{
    char *p = (char *) params;
    strcat(p, "World");
}
 
void main( void )
{
    char *s = new char[12];
    strcpy(s, "Hello ");
    _beginthread(threadprocess, 0, s);
    ...
    delete [] s;
    s = NULL;
}

darkcloud.42o wrote:

...i need to have the char s to be used right after the threadprocess completes... which is modified inside threadprocess... see what i mean..

HANDLE hThread = (HANDLE)_beginthreadex(NULL, 0, threadprocess, NULL, 0, &sid);
CloseHandle(hThread);

Christian Graus wrote:

That's way to broad a question for a forum. You should google for articles on what is a huge topic.

G Haranadh wrote:

pbyCmd = new BYTE[byCount+1];

G Haranadh wrote:

if (pbyCmd) delete pbyCmd;

Christian Graus wrote:

Why +1 ?

Christian Graus wrote:

if (pbyCmd) delete [] pbyCmd;

---

Nice talking to you.
If you judge people, you have no time to love them. -- Mother Teresa

BYTE *pbyCmd <code>= NULL</code>;   //Always allocate a default value,
                       // or directly assign a value
 
pbyCmd = new BYTE[byCount+1];    //why +1 ?
 
if (pbyCmd) {
    delete<code>[]</code> pbyCmd;
    <code>pbyCmd = NULL;</code>    //this is not done automatically by delete
                      // but you should do it for security, and if
                      // you want to be able to test if NULL or not
}