how to emit signal in a static function ?

[sunil.thaha]

so why do u have to make the callback function as static ??

Callbacks functions has to be static member functions
Read this to know why http://www.newty.de/fpt/callback.html#intro


Now for the part of emitting a signal from the static function. I believe it makes no sense to have the signal emitted from a static function. Since a static function is not bound to an oobject how will you ever connect to that signal.

you just cannot write

connect( MyClass, SIGNAL( sinalEmittedFromStaticFunction() ), someObject, SLOT( whatEver() );

connect( MyClass, SIGNAL( sinalEmittedFromStaticFunction() ), someObject, SLOT( whatEver() );

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More over if you go through the Qt docs, you will find that the signals cannot be static.

But you can always post/send Custom Events from the static function.