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OnError Event
November 24, 2015
10:42, EET
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Fransua33
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Forum Posts: 39
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October 27, 2014
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I’m using C++ Builder with the Sentrol SDK and I can’t define the OnError event because when I compile an error ocurred with this event. I wasn’t able to figure out the origin of this error. The error wich appears is:

[bcc32 Error] Model_ServerOPC.cpp(88): E2034 unable to convert ‘void (_fastcall * (_closure )(TObject *,const EPsOPCError *))(TObject *,const EPsOPCError *)’ in ‘TPsOPCErrorEvent’

I post the object code I use for the event declaration:

Header File
class ServerModel {

public:

void __fastcall ServerOPCError(TObject* Sender, const EPsOPCError* ErrorObject);

};

Code File
void ServerModel::addEvents() {

this->opcServer->OnError = ServerOPCError; //Here is when the compiler arise the error

}

void __fastcall ServerModel::ServerOPCError(TObject* Sender, const EPsOPCError* ErrorObject) {
ShowMessage(“Error”);
}

These error doesn’t appear when I define the error event on design time. What I’m missing?

November 25, 2015
6:28, EET
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Jouni Aro
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Forum Posts: 1026
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December 21, 2011
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The correct form of the method definition seems to be

void __fastcall PsOPCServer1Error(TObject *Sender, EPsOPCError *const ErrorObject);
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