On 04/10/12 09:57, patspiper wrote:
On 04/10/12 09:19, Mattias Gaertner wrote:
On Thu, 04 Oct 2012 00:33:07 +0300
patspiper <[email protected]> wrote:
Hi,
What is the correct way to clone programmatically a component, ie
assign
all its properties to another component of the same class (like the IDE
designer's copy/paste)?
The code below used to work in Delphi but does not with Lazarus (result
is nil).
RegisterClass(TMyComponent);
Clipboard.SetComponent(MyComponent);
Result:= TMyComponent(Clipboard.GetComponent(Self, Self));
It should work in Lazarus too.
It does not. It seems due to the fact that TClipboard.GetComponent
uses pcfComponent while TClipboard.SetComponent uses pcfCustomData
instead. Substituting pcfCustomData by pcfComponent did the job, but
then the copied (original) component seems to lose its events. I will
test further and report.
The copied (original) component's events are fine. However, it is the
clone's events which are not as desired. Its methods code+data are equal
to the original component's methods code+data whereas the data part
should point to the clone itself for proper operation of the clone. Any
ideas on how this should be handled?
Stephano
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