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POWhy is that the designer generated UI classes embedded as "Aggregation" can't implement custom slots?
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2011-04-08T05:03:50.627
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2015-11-03T14:43:25.883
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2011-04-08T05:10:30.363
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I see that the designer generated UI classes be embedded using any of the following methods in Qt, <ol> <li>Aggregation as a pointer member</li> <li>Aggregation</li> <li>Multiple, Private inheritance</li> </ol> <img src="https://i.stack.imgur.com/2pA2Q.jpg" alt="enter image description here"> but it is said that the second method doesn't support custom slots. Can someone elaborate on this? Why can't we implement custom slots, while using aggregation? Also, elaborate on the advantages and disadvantages in each of the methods.
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<c++><oop><qt><qt-creator><qt-designer>
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Why is that the designer generated UI classes embedded as "Aggregation" can't implement custom slots?
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1. COAggregate is composition. So basically you have the options of "point-to" (PIMPL), "has-a" (composite), or "is-a" (inheritance).
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