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//Look for a Hello World Session which might be already running
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| 2 |
static HRESULT FindSession()
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| 3 |
{
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HRESULT hr;
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DPSESSIONDESC sessionDesc;
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ZeroMemory(&sessionDesc, sizeof(DPSESSIONDESC));
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sessionDesc.dwSize = sizeof(DPSESSIONDESC);
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| 8 |
sessionDesc.guidSession = sessionGUID;
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| 9 |
hr = lpDirectPlay1->EnumSessions(&sessionDesc, 1000, EnumSessionsCallback,
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hwndApp, DPENUMSESSIONS_AVAILABLE);
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if FAILED(hr)
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| 12 |
::MessageBox(NULL,"Could not find any HelloWorld sessions", "HelloWorld", MB_OK);
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return(hr);
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}
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// Callback function for enumerating sessions
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static BOOL FAR PASCAL EnumSessionsCallback(
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LPDPSESSIONDESC lpSessionDesc,
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LPVOID lpContext,
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| 19 |
LPDWORD lpdwTimeOut,
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| 20 |
DWORD dwFlags
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| 21 |
)
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| 22 |
{
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| 23 |
if (dwFlags & DPESC_TIMEDOUT)
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| 24 |
::MessageBox(NULL,"Could not find a HelloWorld session!....Timed Out", "HelloWorld", MB_OK);
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| 25 |
else
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| 26 |
::MessageBox(NULL,"Found a HelloWorld session!", "HelloWorld", MB_OK);
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| 27 |
return(FALSE);
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| 28 |
}
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| 29 |
FindSession():
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| 30 |
Enumerates other DirectPlay
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| 31 |
sessions with same GUID
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| 32 |
EnumSessionsCallback()
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| 33 |
is called by DirectPlay for each session it finds.
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