/// <summary>
/// UnRegisterComClasses is called to revoke the registration of the COM
/// classes exposed from the server, and perform the cleanups.
/// </summary>
public void UnRegisterComClasses()
{
/////////////////////////////////////////////////////////////////
// Revoke the registration of the COM classes.
//
// Revoke the registration of AppInstance
if (_cookieComAccessProvider != 0)
{
ComNative.CoRevokeClassObject(_cookieComAccessProvider);
}
// Revoke the registration of other classes
// ...
}
/// <summary>
/// RegisterComClasses is responsible for registering the COM class
/// factories for the COM classes to be exposed from the server, and
/// initializing the key member variables of the COM server (e.g. _nLockCnt).
/// </summary>
public void RegisterComClasses()
{
//
// Register the COM class factories.
//
var clsidComAccessProvider = ComIds.CLSID_ComAccessProvider;
var hResult = ComNative.CoRegisterClassObject(
ref clsidComAccessProvider, // CLSID to be registered
new ComAccessProviderClassFactory(), // Class factory
CLSCTX.LOCAL_SERVER, // Context to run
REGCLS.MULTIPLEUSE | REGCLS.SUSPENDED,
out _cookieComAccessProvider);
if (hResult != 0)
{
throw new ApplicationException("CoRegisterClassObject failed w/err 0x" + hResult.ToString("X"));
}
// Register other class objects
// ...
// Inform the SCM about all the registered classes, and begins
// letting activation requests into the server process.
hResult = ComNative.CoResumeClassObjects();
if (hResult != 0)
{
if (_cookieComAccessProvider != 0)
{
ComNative.CoRevokeClassObject(_cookieComAccessProvider);
}
// Revoke the registration of other classes
// ...
throw new ApplicationException("CoResumeClassObjects failed w/err 0x" + hResult.ToString("X"));
}
// Records the count of the active COM objects in the server.
// When _nLockCnt drops to zero, the server can be shut down.
_nLockCnt = 0;
}
