ofParameter addListener doesn't match overloads

@Kaito_Kid wrote:

Hello,

I am starting to use OpenFrameworks with ofxGui.

I have the following lines:

    primType2D.setName("2D");
    primType2D.set(true);
    primType2D.addListener(this, &ofApp::primDim2DChanged);

here are the declarations of primType2D and primDim2DChanged:

    ofParameter<bool> primType2D;
    bool primDim2DChanged();

On build, I fail with this:
'ofAddListener': none of the 5 overloads could convert all the argument types (compiling source file ofApp.cpp)

it originates from:

openFrameworks\types\ofParameter.h line 435

I have no idea what I'm doing wrong. I tried explicitly giving the priority and switching the bool function to a void function, but it doesn't make any difference.

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