Select graphic object with mouse
lazarus / 39-Graphics

----------------------------------------------------------------------
MSC · 2014-12-08 11:41

Friends,
I got stuck on a problem of selecting a graphical object. Also on
brother google I´ve found no useful results. Since this is very common
in many programs (like CAD, FlowChart), all sourcecode I have found
was very special, difficult to understand and not applicable to my
problem.

My problem:
I´m going to create a piece of software similar to a flowchart. So I
have created a basic object TRectangle in a separate unit. In my main
program, I have created many different graphical objects (e.g.
colorized rectangles) which are inherited fom TRectangle and placed
them on a TImage canvas. Now I want to select one of these objects and
move it around the canvas using mouse down-move-up.
I think I know the basic functionality to move the object, but in the
mouse routines the actual clicked object is needed.
How can I find out, which object was clicked?

Regards
MSC

Windows 7 64 bit
Lazarus 1.2.4 32 bit
FPC 2.6.4

----------------------------------------------------------------------
circular · 2014-12-08 13:16

It seems you have already started this topic there:
http://forum.lazarus.freepascal.org/index.php/topic,26524.0.html

Regards

----------------------------------------------------------------------
MSC · 2014-12-08 13:59

Sorry - please close it.