c++ - Can QSignalMapper forward function arguments? -

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how use qsignalmapper map multiple check box? signal check box use statechanged(int flag). during process want keep int flag , send custom slot other mapped variables.

how achieve this？ using qt4.

you cannot directly forward function arguments qsignalmapper. there 2 ways work around this.

  1. rewrite custom version of qsignalmapper takes appropriate function arguments , forwards them.
  2. connect check box signal directly slot want , check return value of sender() in slot see check box emitted signal.

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