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// Callback function for enumerating service providers
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static BOOL FAR PASCAL DirectPlayEnumerateCallback(
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LPGUID lpSPGuid,
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LPTSTR lpszSPName,
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DWORD dwMajorVersion,
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DWORD dwMinorVersion,
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LPVOID lpContext
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)
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{
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//Look for the TCP/IP service provider for DirectPlay
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if (strstr( lpszSPName, "TCP") != NULL)
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{
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// Make space for the service provider's GUID.
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lpServiceProviderGuid = new GUID;
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if (lpServiceProviderGuid == NULL) //If memory could not be allocated
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::MessageBox(NULL,"Could not allocate memory for service provider's GUID",
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"HelloWorld", MB_OK);
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else
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*lpServiceProviderGuid = *lpSPGuid; // Store the GUID of the service provider
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return(FALSE); //Returning false stops further enumeration
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//Since we found our service provider, we return false
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}
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return(TRUE); //Continue enumeration
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}
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DirectPlayEnumerateCallback():
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DirectPlay calls this function for each
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service provider it detects on the machine
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