COM Call inside thread - C# / C Sharp

Hi All
I am using interop blocking COM call from within a worker thread. This is a
part of Windows Application. I find that if I remove the blocking COM call
and instead use an infinite while loop, the Windows App works fine.
However, when I use the blocking COM call from withing the infinite while
loop, the Windows Application freezes. Can anyone please tell me what the
problem could be?

Thanks in advance for any help.

Regards
Nitesh Gupta

Pasted below is the code snipet:
I am trying to use ActiveX MQClient library from within the loop to get a
message from the queue.

public bool Get(ref string strMsg)

{

MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;

m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( )
;

m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
(int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
(int)MQ.MQGMO_W AIT);

m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;

m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns, System.Reflecti on.Missing.Valu e);

strMsg=getMsg.M essageData.ToSt ring();

if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)

{

return false;

}

return true;

}
public virtual void OnMessage(strin g strMsg)

{

}

private void Process()

{

string str=string.Empt y;

while(!m_bAbort )

{

if(Get(ref str))

{

OnMessage(str);

}

}

}

public bool StartPolling()

{

ThreadStart start=new ThreadStart(thi s.Process);

m_MyThread=new Thread(start);

m_bAbort=false;

m_MyThread.Star t();

return true;

}

Nov 17 '05 #1

Subscribe Reply

2200

Ollie Riches

why aren't you using the System.Messagin g namespace?

The System.Messagin g namespace provides classes that allow you to connect
to, monitor, and administer message queues on the network and send, receive,
or peek messages.

HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eX******** ******@TK2MSFTN GP14.phx.gbl...

Hi All
I am using interop blocking COM call from within a worker thread. This is
a
part of Windows Application. I find that if I remove the blocking COM
call
and instead use an infinite while loop, the Windows App works fine.
However, when I use the blocking COM call from withing the infinite while
loop, the Windows Application freezes. Can anyone please tell me what the
problem could be?

Thanks in advance for any help.

Regards
Nitesh Gupta

Pasted below is the code snipet:
I am trying to use ActiveX MQClient library from within the loop to get a
message from the queue.

public bool Get(ref string strMsg)

{

MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;

m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( )
;

m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
(int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
(int)MQ.MQGMO_W AIT);

m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;

m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns, System.Reflecti on.Missing.Valu e);

strMsg=getMsg.M essageData.ToSt ring();

if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)

{

return false;

}

return true;

}
public virtual void OnMessage(strin g strMsg)

{

}

private void Process()

{

string str=string.Empt y;

while(!m_bAbort )

{

if(Get(ref str))

{

OnMessage(str);

}

}

}

public bool StartPolling()

{

ThreadStart start=new ThreadStart(thi s.Process);

m_MyThread=new Thread(start);

m_bAbort=false;

m_MyThread.Star t();

return true;

}

Nov 17 '05 #2

I am using IBM Websphere MQ Series. Will System.Messagin g work with IBM MQ
Series also? Its works with MS Queuing as far as I know?
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..

why aren't you using the System.Messagin g namespace?

The System.Messagin g namespace provides classes that allow you to connect
to, monitor, and administer message queues on the network and send, receive, or peek messages.

HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eX******** ******@TK2MSFTN GP14.phx.gbl...
Hi All
I am using interop blocking COM call from within a worker thread. This is a
part of Windows Application. I find that if I remove the blocking COM
call
and instead use an infinite while loop, the Windows App works fine.
However, when I use the blocking COM call from withing the infinite while loop, the Windows Application freezes. Can anyone please tell me what the problem could be?

Thanks in advance for any help.

Regards
Nitesh Gupta

Pasted below is the code snipet:
I am trying to use ActiveX MQClient library from within the loop to get a message from the queue.

public bool Get(ref string strMsg)

{

MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;

m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( ) ;

m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
(int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
(int)MQ.MQGMO_W AIT);

m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;

m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns, System.Reflecti on.Missing.Valu e);
strMsg=getMsg.M essageData.ToSt ring();

if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)

{

return false;

}

return true;

}
public virtual void OnMessage(strin g strMsg)

{

}

private void Process()

{

string str=string.Empt y;

while(!m_bAbort )

{

if(Get(ref str))

{

OnMessage(str);

}

}

}

public bool StartPolling()

{

ThreadStart start=new ThreadStart(thi s.Process);

m_MyThread=new Thread(start);

m_bAbort=false;

m_MyThread.Star t();

return true;

}

Nov 17 '05 #3

Ollie Riches

As far as I am aware you can't, but this might help

http://www.csharphelp.com/archives3/archive477.html

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:uO******** ******@TK2MSFTN GP11.phx.gbl...

I am using IBM Websphere MQ Series. Will System.Messagin g work with IBM MQ
Series also? Its works with MS Queuing as far as I know?
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
why aren't you using the System.Messagin g namespace?

The System.Messagin g namespace provides classes that allow you to connect
to, monitor, and administer message queues on the network and send,

receive,
or peek messages.

HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eX******** ******@TK2MSFTN GP14.phx.gbl...
> Hi All
> I am using interop blocking COM call from within a worker thread. This is > a
> part of Windows Application. I find that if I remove the blocking COM
> call
> and instead use an infinite while loop, the Windows App works fine.
> However, when I use the blocking COM call from withing the infinite while > loop, the Windows Application freezes. Can anyone please tell me what the > problem could be?
>
> Thanks in advance for any help.
>
> Regards
> Nitesh Gupta
>
> Pasted below is the code snipet:
> I am trying to use ActiveX MQClient library from within the loop to get a > message from the queue.
>
> public bool Get(ref string strMsg)
>
> {
>
> MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;
>
> m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( ) > ;
>
> m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
> (int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
> (int)MQ.MQGMO_W AIT);
>
> m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;
>
> m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns, System.Reflecti on.Missing.Valu e); >
> strMsg=getMsg.M essageData.ToSt ring();
>
> if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
> m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)
>
> {
>
> return false;
>
> }
>
> return true;
>
> }
>
>
> public virtual void OnMessage(strin g strMsg)
>
> {
>
> }
>
> private void Process()
>
> {
>
> string str=string.Empt y;
>
> while(!m_bAbort )
>
> {
>
> if(Get(ref str))
>
> {
>
> OnMessage(str);
>
> }
>
> }
>
> }
>
> public bool StartPolling()
>
> {
>
> ThreadStart start=new ThreadStart(thi s.Process);
>
> m_MyThread=new Thread(start);
>
> m_bAbort=false;
>
> m_MyThread.Star t();
>
> return true;
>
> }
>
>

Nov 17 '05 #4

Yes, I came across this but I could not find .NET support pack on this link.

http://www-3.ibm.com/software/integr...dual/ma7p.html
Any other active links that you can help me with?

Thanks,

Nitesh
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:%2******** ********@TK2MSF TNGP14.phx.gbl. ..

As far as I am aware you can't, but this might help

http://www.csharphelp.com/archives3/archive477.html

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:uO******** ******@TK2MSFTN GP11.phx.gbl...
I am using IBM Websphere MQ Series. Will System.Messagin g work with IBM MQ Series also? Its works with MS Queuing as far as I know?
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
why aren't you using the System.Messagin g namespace?

The System.Messagin g namespace provides classes that allow you to connect to, monitor, and administer message queues on the network and send,

receive,
or peek messages.

HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eX******** ******@TK2MSFTN GP14.phx.gbl...
> Hi All
> I am using interop blocking COM call from within a worker thread. This
is
> a
> part of Windows Application. I find that if I remove the blocking
COM > call
> and instead use an infinite while loop, the Windows App works fine.
> However, when I use the blocking COM call from withing the infinite

while
> loop, the Windows Application freezes. Can anyone please tell me what the
> problem could be?
>
> Thanks in advance for any help.
>
> Regards
> Nitesh Gupta
>
> Pasted below is the code snipet:
> I am trying to use ActiveX MQClient library from within the loop to
get a
> message from the queue.
>
> public bool Get(ref string strMsg)
>
> {
>
> MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;
>
>

m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( ) > ;
>
> m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
> (int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
> (int)MQ.MQGMO_W AIT);
>
> m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;
>
> m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns,

System.Reflecti on.Missing.Valu e);
>
> strMsg=getMsg.M essageData.ToSt ring();
>
> if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
> m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)
>
> {
>
> return false;
>
> }
>
> return true;
>
> }
>
>
> public virtual void OnMessage(strin g strMsg)
>
> {
>
> }
>
> private void Process()
>
> {
>
> string str=string.Empt y;
>
> while(!m_bAbort )
>
> {
>
> if(Get(ref str))
>
> {
>
> OnMessage(str);
>
> }
>
> }
>
> }
>
> public bool StartPolling()
>
> {
>
> ThreadStart start=new ThreadStart(thi s.Process);
>
> m_MyThread=new Thread(start);
>
> m_bAbort=false;
>
> m_MyThread.Star t();
>
> return true;
>
> }
>
>

Nov 17 '05 #5

Ollie Riches

how about this:

http://www-1.ibm.com/support/docview...=utf-8&lang=en

HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eg******** ******@tk2msftn gp13.phx.gbl...

Yes, I came across this but I could not find .NET support pack on this
link.

http://www-3.ibm.com/software/integr...dual/ma7p.html
Any other active links that you can help me with?

Thanks,

Nitesh
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:%2******** ********@TK2MSF TNGP14.phx.gbl. ..
As far as I am aware you can't, but this might help

http://www.csharphelp.com/archives3/archive477.html

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:uO******** ******@TK2MSFTN GP11.phx.gbl...
>I am using IBM Websphere MQ Series. Will System.Messagin g work with IBM MQ > Series also? Its works with MS Queuing as far as I know?
>
>
> "Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
> news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
>> why aren't you using the System.Messagin g namespace?
>>
>> The System.Messagin g namespace provides classes that allow you to connect >> to, monitor, and administer message queues on the network and send,
> receive,
>> or peek messages.
>>
>> HTH
>>
>> Ollie Riches
>>
>> "NG" <xg******@yahoo .com> wrote in message
>> news:eX******** ******@TK2MSFTN GP14.phx.gbl...
>> > Hi All
>> > I am using interop blocking COM call from within a worker thread. This > is
>> > a
>> > part of Windows Application. I find that if I remove the blocking COM >> > call
>> > and instead use an infinite while loop, the Windows App works fine.
>> > However, when I use the blocking COM call from withing the infinite
> while
>> > loop, the Windows Application freezes. Can anyone please tell me what > the
>> > problem could be?
>> >
>> > Thanks in advance for any help.
>> >
>> > Regards
>> > Nitesh Gupta
>> >
>> > Pasted below is the code snipet:
>> > I am trying to use ActiveX MQClient library from within the loop to get > a
>> > message from the queue.
>> >
>> > public bool Get(ref string strMsg)
>> >
>> > {
>> >
>> > MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;
>> >
>> >
> m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( ) >> > ;
>> >
>> > m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
>> > (int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
>> > (int)MQ.MQGMO_W AIT);
>> >
>> > m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;
>> >
>> > m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns,
> System.Reflecti on.Missing.Valu e);
>> >
>> > strMsg=getMsg.M essageData.ToSt ring();
>> >
>> > if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
>> > m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)
>> >
>> > {
>> >
>> > return false;
>> >
>> > }
>> >
>> > return true;
>> >
>> > }
>> >
>> >
>> > public virtual void OnMessage(strin g strMsg)
>> >
>> > {
>> >
>> > }
>> >
>> > private void Process()
>> >
>> > {
>> >
>> > string str=string.Empt y;
>> >
>> > while(!m_bAbort )
>> >
>> > {
>> >
>> > if(Get(ref str))
>> >
>> > {
>> >
>> > OnMessage(str);
>> >
>> > }
>> >
>> > }
>> >
>> > }
>> >
>> > public bool StartPolling()
>> >
>> > {
>> >
>> > ThreadStart start=new ThreadStart(thi s.Process);
>> >
>> > m_MyThread=new Thread(start);
>> >
>> > m_bAbort=false;
>> >
>> > m_MyThread.Star t();
>> >
>> > return true;
>> >
>> > }
>> >
>> >
>>
>>
>
>

Nov 17 '05 #6

Looks like this would work. But, I am wondering whether this can be used on
a MQServer too. I am giving it a try.

Regards
Nitesh
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:eS******** ******@TK2MSFTN GP10.phx.gbl...

how about this:

http://www-1.ibm.com/support/docview...=utf-8&lang=en
HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eg******** ******@tk2msftn gp13.phx.gbl...
Yes, I came across this but I could not find .NET support pack on this
link.

http://www-3.ibm.com/software/integr...dual/ma7p.html Any other active links that you can help me with?

Thanks,

Nitesh
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:%2******** ********@TK2MSF TNGP14.phx.gbl. ..
As far as I am aware you can't, but this might help

http://www.csharphelp.com/archives3/archive477.html

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:uO******** ******@TK2MSFTN GP11.phx.gbl...
>I am using IBM Websphere MQ Series. Will System.Messagin g work with IBM
MQ
> Series also? Its works with MS Queuing as far as I know?
>
>
> "Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
> news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
>> why aren't you using the System.Messagin g namespace?
>>
>> The System.Messagin g namespace provides classes that allow you to

connect
>> to, monitor, and administer message queues on the network and send,
> receive,
>> or peek messages.
>>
>> HTH
>>
>> Ollie Riches
>>
>> "NG" <xg******@yahoo .com> wrote in message
>> news:eX******** ******@TK2MSFTN GP14.phx.gbl...
>> > Hi All
>> > I am using interop blocking COM call from within a worker thread.

This
> is
>> > a
>> > part of Windows Application. I find that if I remove the blocking

COM
>> > call
>> > and instead use an infinite while loop, the Windows App works
fine. >> > However, when I use the blocking COM call from withing the infinite > while
>> > loop, the Windows Application freezes. Can anyone please tell me

what
> the
>> > problem could be?
>> >
>> > Thanks in advance for any help.
>> >
>> > Regards
>> > Nitesh Gupta
>> >
>> > Pasted below is the code snipet:
>> > I am trying to use ActiveX MQClient library from within the loop to get
> a
>> > message from the queue.
>> >
>> > public bool Get(ref string strMsg)
>> >
>> > {
>> >
>> > MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;
>> >
>> >
>

m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( ) >> > ;
>> >
>> > m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
>> > (int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
>> > (int)MQ.MQGMO_W AIT);
>> >
>> > m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;
>> >
>> > m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns,
> System.Reflecti on.Missing.Valu e);
>> >
>> > strMsg=getMsg.M essageData.ToSt ring();
>> >
>> > if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
>> > m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)
>> >
>> > {
>> >
>> > return false;
>> >
>> > }
>> >
>> > return true;
>> >
>> > }
>> >
>> >
>> > public virtual void OnMessage(strin g strMsg)
>> >
>> > {
>> >
>> > }
>> >
>> > private void Process()
>> >
>> > {
>> >
>> > string str=string.Empt y;
>> >
>> > while(!m_bAbort )
>> >
>> > {
>> >
>> > if(Get(ref str))
>> >
>> > {
>> >
>> > OnMessage(str);
>> >
>> > }
>> >
>> > }
>> >
>> > }
>> >
>> > public bool StartPolling()
>> >
>> > {
>> >
>> > ThreadStart start=new ThreadStart(thi s.Process);
>> >
>> > m_MyThread=new Thread(start);
>> >
>> > m_bAbort=false;
>> >
>> > m_MyThread.Star t();
>> >
>> > return true;
>> >
>> > }
>> >
>> >
>>
>>
>
>

Nov 17 '05 #7

Ollie Riches

to quote the page:

' This package also contains the classes that allow WebSphere MQ clients to
be invoked from Microsoft .NET applications. These classes were previously
available in SupportPac MA7P (now withdrawn).
The classes for .NET are in amqmdnet.dll . '

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:u8******** ******@TK2MSFTN GP14.phx.gbl...

Looks like this would work. But, I am wondering whether this can be used
on
a MQServer too. I am giving it a try.

Regards
Nitesh
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:eS******** ******@TK2MSFTN GP10.phx.gbl...
how about this:

http://www-1.ibm.com/support/docview...=utf-8&lang=en

HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eg******** ******@tk2msftn gp13.phx.gbl...
> Yes, I came across this but I could not find .NET support pack on this
> link.
>
> http://www-3.ibm.com/software/integr...dual/ma7p.html > Any other active links that you can help me with?
>
> Thanks,
>
> Nitesh
>
>
> "Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
> news:%2******** ********@TK2MSF TNGP14.phx.gbl. ..
>> As far as I am aware you can't, but this might help
>>
>> http://www.csharphelp.com/archives3/archive477.html
>>
>> Ollie Riches
>>
>> "NG" <xg******@yahoo .com> wrote in message
>> news:uO******** ******@TK2MSFTN GP11.phx.gbl...
>> >I am using IBM Websphere MQ Series. Will System.Messagin g work with IBM > MQ
>> > Series also? Its works with MS Queuing as far as I know?
>> >
>> >
>> > "Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
>> > news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
>> >> why aren't you using the System.Messagin g namespace?
>> >>
>> >> The System.Messagin g namespace provides classes that allow you to
> connect
>> >> to, monitor, and administer message queues on the network and send,
>> > receive,
>> >> or peek messages.
>> >>
>> >> HTH
>> >>
>> >> Ollie Riches
>> >>
>> >> "NG" <xg******@yahoo .com> wrote in message
>> >> news:eX******** ******@TK2MSFTN GP14.phx.gbl...
>> >> > Hi All
>> >> > I am using interop blocking COM call from within a worker thread.
> This
>> > is
>> >> > a
>> >> > part of Windows Application. I find that if I remove the
>> >> > blocking
> COM
>> >> > call
>> >> > and instead use an infinite while loop, the Windows App works fine. >> >> > However, when I use the blocking COM call from withing the infinite >> > while
>> >> > loop, the Windows Application freezes. Can anyone please tell me
> what
>> > the
>> >> > problem could be?
>> >> >
>> >> > Thanks in advance for any help.
>> >> >
>> >> > Regards
>> >> > Nitesh Gupta
>> >> >
>> >> > Pasted below is the code snipet:
>> >> > I am trying to use ActiveX MQClient library from within the loop to > get
>> > a
>> >> > message from the queue.
>> >> >
>> >> > public bool Get(ref string strMsg)
>> >> >
>> >> > {
>> >> >
>> >> > MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;
>> >> >
>> >> >
>> >
> m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( ) >> >> > ;
>> >> >
>> >> > m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns |
>> >> > (int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
>> >> > (int)MQ.MQGMO_W AIT);
>> >> >
>> >> > m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;
>> >> >
>> >> > m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns,
>> > System.Reflecti on.Missing.Valu e);
>> >> >
>> >> > strMsg=getMsg.M essageData.ToSt ring();
>> >> >
>> >> > if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
>> >> > m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)
>> >> >
>> >> > {
>> >> >
>> >> > return false;
>> >> >
>> >> > }
>> >> >
>> >> > return true;
>> >> >
>> >> > }
>> >> >
>> >> >
>> >> > public virtual void OnMessage(strin g strMsg)
>> >> >
>> >> > {
>> >> >
>> >> > }
>> >> >
>> >> > private void Process()
>> >> >
>> >> > {
>> >> >
>> >> > string str=string.Empt y;
>> >> >
>> >> > while(!m_bAbort )
>> >> >
>> >> > {
>> >> >
>> >> > if(Get(ref str))
>> >> >
>> >> > {
>> >> >
>> >> > OnMessage(str);
>> >> >
>> >> > }
>> >> >
>> >> > }
>> >> >
>> >> > }
>> >> >
>> >> > public bool StartPolling()
>> >> >
>> >> > {
>> >> >
>> >> > ThreadStart start=new ThreadStart(thi s.Process);
>> >> >
>> >> > m_MyThread=new Thread(start);
>> >> >
>> >> > m_bAbort=false;
>> >> >
>> >> > m_MyThread.Star t();
>> >> >
>> >> > return true;
>> >> >
>> >> > }
>> >> >
>> >> >
>> >>
>> >>
>> >
>> >
>>
>>
>
>

Nov 17 '05 #8

Yes, I have just downloaded this and going to use it.
Thanks very much for your help.

Best regards
Nitesh Gupta
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:eQ******** *****@TK2MSFTNG P12.phx.gbl...

to quote the page:

' This package also contains the classes that allow WebSphere MQ clients to be invoked from Microsoft .NET applications. These classes were previously
available in SupportPac MA7P (now withdrawn).
The classes for .NET are in amqmdnet.dll . '

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:u8******** ******@TK2MSFTN GP14.phx.gbl...
Looks like this would work. But, I am wondering whether this can be used
on
a MQServer too. I am giving it a try.

Regards
Nitesh
"Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
news:eS******** ******@TK2MSFTN GP10.phx.gbl...
how about this:

http://www-1.ibm.com/support/docview...=utf-8&lang=en

HTH

Ollie Riches

"NG" <xg******@yahoo .com> wrote in message
news:eg******** ******@tk2msftn gp13.phx.gbl...
> Yes, I came across this but I could not find .NET support pack on this > link.
>
>

http://www-3.ibm.com/software/integr...dual/ma7p.html
> Any other active links that you can help me with?
>
> Thanks,
>
> Nitesh
>
>
> "Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
> news:%2******** ********@TK2MSF TNGP14.phx.gbl. ..
>> As far as I am aware you can't, but this might help
>>
>> http://www.csharphelp.com/archives3/archive477.html
>>
>> Ollie Riches
>>
>> "NG" <xg******@yahoo .com> wrote in message
>> news:uO******** ******@TK2MSFTN GP11.phx.gbl...
>> >I am using IBM Websphere MQ Series. Will System.Messagin g work with IBM
> MQ
>> > Series also? Its works with MS Queuing as far as I know?
>> >
>> >
>> > "Ollie Riches" <ol**********@p honeanalyser.ne t> wrote in message
>> > news:%2******** ********@TK2MSF TNGP12.phx.gbl. ..
>> >> why aren't you using the System.Messagin g namespace?
>> >>
>> >> The System.Messagin g namespace provides classes that allow you to
> connect
>> >> to, monitor, and administer message queues on the network and
send, >> > receive,
>> >> or peek messages.
>> >>
>> >> HTH
>> >>
>> >> Ollie Riches
>> >>
>> >> "NG" <xg******@yahoo .com> wrote in message
>> >> news:eX******** ******@TK2MSFTN GP14.phx.gbl...
>> >> > Hi All
>> >> > I am using interop blocking COM call from within a worker thread. > This
>> > is
>> >> > a
>> >> > part of Windows Application. I find that if I remove the
>> >> > blocking
> COM
>> >> > call
>> >> > and instead use an infinite while loop, the Windows App works

fine.
>> >> > However, when I use the blocking COM call from withing the

infinite
>> > while
>> >> > loop, the Windows Application freezes. Can anyone please tell me > what
>> > the
>> >> > problem could be?
>> >> >
>> >> > Thanks in advance for any help.
>> >> >
>> >> > Regards
>> >> > Nitesh Gupta
>> >> >
>> >> > Pasted below is the code snipet:
>> >> > I am trying to use ActiveX MQClient library from within the loop to
> get
>> > a
>> >> > message from the queue.
>> >> >
>> >> > public bool Get(ref string strMsg)
>> >> >
>> >> > {
>> >> >
>> >> > MQMessage getMsg=(MQMessa ge)m_MQSession. AccessMessage() ;
>> >> >
>> >> >
>> >
>

m_MQGetMsgOptio ns=(MQGetMessag eOptions)m_MQSe ssion.AccessGet MessageOptions( ) >> >> > ;
>> >> >
>> >> > m_MQGetMsgOptio ns.Options=(int )((int)m_MQGetM sgOptions.Optio ns | >> >> > (int)MQ.MQGMO_C OMPLETE_MSG | (int)MQ.MQGMO_N O_SYNCPOINT |
>> >> > (int)MQ.MQGMO_W AIT);
>> >> >
>> >> > m_MQGetMsgOptio ns.WaitInterval =(int)MQ.MQWI_U NLIMITED;
>> >> >
>> >> > m_MQQueue.Get(g etMsg, m_MQGetMsgOptio ns,
>> > System.Reflecti on.Missing.Valu e);
>> >> >
>> >> > strMsg=getMsg.M essageData.ToSt ring();
>> >> >
>> >> > if(m_MQSession. ReasonCode==(in t)MQ.MQRC_NO_MS G_AVAILABLE ||
>> >> > m_MQSession.Com pletionCode==(i nt)MQ.MQCC_FAIL ED)
>> >> >
>> >> > {
>> >> >
>> >> > return false;
>> >> >
>> >> > }
>> >> >
>> >> > return true;
>> >> >
>> >> > }
>> >> >
>> >> >
>> >> > public virtual void OnMessage(strin g strMsg)
>> >> >
>> >> > {
>> >> >
>> >> > }
>> >> >
>> >> > private void Process()
>> >> >
>> >> > {
>> >> >
>> >> > string str=string.Empt y;
>> >> >
>> >> > while(!m_bAbort )
>> >> >
>> >> > {
>> >> >
>> >> > if(Get(ref str))
>> >> >
>> >> > {
>> >> >
>> >> > OnMessage(str);
>> >> >
>> >> > }
>> >> >
>> >> > }
>> >> >
>> >> > }
>> >> >
>> >> > public bool StartPolling()
>> >> >
>> >> > {
>> >> >
>> >> > ThreadStart start=new ThreadStart(thi s.Process);
>> >> >
>> >> > m_MyThread=new Thread(start);
>> >> >
>> >> > m_bAbort=false;
>> >> >
>> >> > m_MyThread.Star t();
>> >> >
>> >> > return true;
>> >> >
>> >> > }
>> >> >
>> >> >
>> >>
>> >>
>> >
>> >
>>
>>
>
>

Nov 17 '05 #9

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