Process32First
Retrieves
information about the first process encountered in a system snapshot.
BOOL WINAPI Process32First(HANDLE hSnapshot,
LPPROCESSENTRY32 lppe);
Parameters
hSnapshot
Handle
of the snapshot returned from a previous call to the CreateToolhelp32Snapshot function.
lppe
Address of a PROCESSENTRY32 structure.
Return Value
Returns TRUE
if the first entry of the process list has been copied to the buffer or FALSE
otherwise. The ERROR_NO_MORE_FILES error value is returned by the GetLastError function if no processes
exist or the snapshot does not contain process information.
Remarks
The
calling application must set the dwSize member of PROCESSENTRY32
to the size, in bytes, of the structure. Process32First changes dwSize
to the number of bytes written to the structure. This will never be greater
than the initial value of dwSize, but it may be smaller. If the value is
smaller, do not rely on the values of any members whose offsets are greater
than this value.
To
retrieve information about other processes recorded in the same snapshot, use
the Process32Next
function.