Re: ATL COM server for System Tray Icon

"Igor Tandetnik" <>
Wed, 15 Nov 2006 17:39:40 -0500
The source code got mangled, but I spotted a call to Sleep in there.
This is a big no-no for a single-threaded apartment (which you joined
when calling CoInitialize). You need to run a message pump instead - see
GetMessage, DispatchMessage (yes, console applications can have a
message pump).
With best wishes,
    Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925

Albert Gomez <> wrote:

I am trying to get a system tray icon to animate from a console
application. I am using the example from codeproject:

The example works fine from the user app supplied in the source code.
Since my app is a console project, I attempted to build a very
console application that calls directly into the interface:

// systemtraydemoclient.cpp : Defines the entry point for the console

#include <iostream>
#define INITGUID
#include <objbase.h>
#include "SystemTrayDemo.h"

int main(int argc, char* argv[])

std::cout<<"main: Entry"<<std::endl;

IClassFactory *pCf;
IUnknown *pUnk;
IMyServer *pMyServer;

std::cout<<"main: calling CoInitialize() \n"<<std::endl;

   std::cout<<"main: CoInitialize Failed!\n"<<std::endl;

std::cout<<"main: CoInitialize OK\n"<<std::endl;
std::cout<<"main: Calling CoGetClassObject\n"<<std::endl;

if(FAILED(hr)) { std::cout<<"main: CoGetClassObject
Failed!\n"<<std::endl; goto EXIT00; } std::cout<<"main:
CoGetClassObject OK\n"<<std::endl; std::cout<<"main:
hr=pCf->CreateInstance(NULL,IID_IUnknown,(void**) &pUnk);
if(FAILED(hr)) { std::cout<<"main:
goto CLEANUP00; } std::cout<<"main:
hr=pUnk->QueryInterface(IID_IMyServer,(void**) &pMyServer);
if(FAILED(hr)) { std::cout<<"main:
pUnk->QueryInterface(IID_IMyServer,...)Failed!\n"<<std::endl; goto
CLEANUP01; } std::cout<<"main:
std::cout<<"main: Now Calling into the
hr=pMyServer->Visible(VARIANT_TRUE); if(FAILED(hr)) {
std::cout<<"main: pMyServer->Visible() Failed!\n"<<std::endl; goto
CLEANUP02; } hr=pMyServer->Animate(VARIANT_TRUE,200); if(FAILED(hr))
{ std::cout<<"main: pMyServer->Visible() Failed!\n"<<std::endl;
goto CLEANUP02; } std::cout<<"main: pMyServer->Visible()
OK!\n"<<std::endl; Sleep(100000);CLEANUP02: std::cout<<"main: calling
IMyServer::Release"<<std::endl; pMyServer->Release();CLEANUP01:
std::cout<<"main: calling IUnknown::Release"<<std::endl;
pUnk->Release();CLEANUP00: std::cout<<"main: calling
IClassFactory::Release"<<std::endl; pCf->Release();EXIT00:
CoUninitialize(); std::cout<<"main: We are done!"<<std::endl; return
icon appears on the system tray and the message popup works
withmouseover, but the animation does not work.With regards to
launching this COM server from a console app, is this a sideeffect? I
would think the animation would work regardless of whether Icalled
the COM server from a windowed app or a console app.Thanks,Albert

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(Bernard Lazare, L'Antisemitism;
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