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Messages 1 to 5 of 5 total |
TCell revisited |
Fri, Jun 28 2013 6:01 AM | Permanent Link |
Ronald | Hi,
I tried to include a TTimer in my basic component. If I create an instance of my component, I get the following error: (translated form Dutch) Application error: Cannot get the property ttimer_setenabled of a not defined or empty value What is my mistake here? type TCell = class(TPanel) private aTimer :TTimer; public constructor Create(AOwner: TComponent); override; destructor Destroy; override; end; implementation constructor TCell.Create(AOwner: TComponent); begin inherited Create(AOwner); aTimer.Enabled:=false; end; destructor TCell.Destroy; begin inherited Destroy; end; |
Fri, Jun 28 2013 8:01 AM | Permanent Link |
Matthew Jones | Same as with Delphi - you have to create the timer in your constructor.
/Matthew Jones/ |
Fri, Jun 28 2013 9:14 AM | Permanent Link |
Ronald | I know, but I can not create an instance of TTimer (aTimer:=TTimer.Create
This does not exist for TTimer. "Matthew Jones" schreef in bericht news:memo.20130628130144.9656C@nothanks.nothanks.co.uk... Same as with Delphi - you have to create the timer in your constructor. /Matthew Jones/ |
Fri, Jun 28 2013 9:32 AM | Permanent Link |
Matthew Jones | > I know, but I can not create an instance of TTimer
> (aTimer:=TTimer.Create > This does not exist for TTimer. The framework source shows that TAnimator.Create does exactly that: FTimer:=TTimer.Create(nil); Indeed the webcore.wbs code shows that there is a Create for TTimer, so I don't know what your problem is. /Matthew Jones/ |
Fri, Jun 28 2013 9:41 AM | Permanent Link |
Ronald | Oh, stupid me! I walked in that trap a few times before.
Your answer reminded me of the fact that indeed TTimer.Create does not exist, but TTimer.Create(nil) does exist! This got me on the wrong foot before. Instead of giving a syntaxerror EWB tells me the method does not exist. Thanks! "Matthew Jones" schreef in bericht news:memo.20130628143217.9656I@nothanks.nothanks.co.uk... > I know, but I can not create an instance of TTimer > (aTimer:=TTimer.Create > This does not exist for TTimer. The framework source shows that TAnimator.Create does exactly that: FTimer:=TTimer.Create(nil); Indeed the webcore.wbs code shows that there is a Create for TTimer, so I don't know what your problem is. /Matthew Jones/ |
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