Re: [sigc] is possible make the emission of a signal private for a particular class?

["R. Douglas Barbieri" <dooglio gmail com>]

Watch out when using libsigc++ with Qt4...Qt creates a macro called "emit()." This creates all kinds of bizarre errors when you try to call "emit()" on your signal object. I just #undef the Qt "emit()" macro at the top of the class file and have no issues after that. But man did it take me a long time to figure that out. :-)

(Sorry Stephen, but I meant to reply to all)

An
addendum: I dislike undeffing the emit() macro because I didn't know
what they created it in the first place, so this could cause something
somewhere else to break in Qt.

On Thu, May 6, 2010 at 2:12 AM, Stephan Beal <stephan s11n net> wrote:

On Thu, May 6, 2010 at 8:45 AM, Murray Cumming <murrayc murrayc com> wrote:

I'm not sure that Qt's signals can't be emitted by other classes, though

I'd like to know for sure.

It's true - Qt signals are either private or protected, i don't remember which. i do remember, however, adding proxy functions to allow other classes to fire the signal, e.g.

public:

void emitMySignal()

{

  emit ....;

}

 

--
----- stephan beal
http://wanderinghorse.net/home/stephan/

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Doug Barbieri
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