Kjow schreef:
Hi all,
I need to create an "advanced" function that manages mouse events, so
I need to know when/which a button is pressed and so, when no button
is pressed.
I saw that in TMouseButton (row 142 of Controls unit) there isn't
mbNone, so I simply edited that row:
TMouseButton = (mbNone, mbLeft, mbRight, mbMiddle, mbExtra1, mbExtra2);
Now I can see when no buttons are pressed; I simply manage it with
MouseButtonPressed:=Button; //OnMouseDown
MouseButtonPressed:=mbNone; //OnMouseUp
Now the question: there is a better way to do this whitout modify the
Lazarus source code? It is a bug/missing feature or this is a feature?
What about:
type
TMouseButtons = set of TMouseButton; // if it doesn't exist yet
var
MouseButtonPressed: TMouseButtons;
> MouseButtonPressed:=MouseButtonPressed + Button; //OnMouseDown
Your mbNone becomes:
> MouseButtonPressed:=[];
Vincent
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