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Problem with SetTimeCallback in TrayIcon [message #6015]

Sat, 28 October 2006 10:34

zaurus
Messages: 42
Registered: May 2006

Member

Hi!

I have done a 'Trayicon-Application' and want to use a SetTimeCallback, but I'm getting an error during compiling the application.

C:/UPP_610/uppsrc/CtrlCore/CtrlCore.h:963: error: `void Ctrl::SetTimeCallback(int, Callback, int)' is inacces
sible

I thought TrayIcon is inherited from Ctrl, so why I cannot access SetTimeCallback? If I use the 'Class Browser' I can find SetTimeCallback in TrayIcon class.

Anything I did wrong?

Thanks for any tips or help.

Zaurus

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Re: Problem with SetTimeCallback in TrayIcon [message #6026 is a reply to message #6015]

Sat, 28 October 2006 21:41

fallingdutch
Messages: 258
Registered: July 2006

Experienced Member

have you seen this message:
http://www.arilect.com/upp/forum/index.php?t=msg&goto=38 80&#msg_3882

there is a blinking lable with TimeCallback, maybe that helps

Bas

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Re: Problem with SetTimeCallback in TrayIcon [message #6040 is a reply to message #6026]

Sun, 29 October 2006 06:32

zaurus
Messages: 42
Registered: May 2006

Member

Hi Bas!

Thanks for the link, but this is inside a Ctrl where it also works for me. I have used it in this way many times, but now I have a class inherited from TrayIcon and then SetTimeCallback seems to be not available. Even TrayIcon is inherited from Ctrl, so in my logic it should work, but I'm just a beginner in U++ and so most likely I did something wrong.

This is from the class declaration:

class MyClass : public TrayIcon {
public:
typedef MyClass CLASSNAME;
MyClass();
private:
void OnTimer();

Then this in my constructor:

SetTimeCallback(1500, THISBACK(OnTimer));

And I get this error during compiling:

C:/UPP/uppsrc/CtrlCore/CtrlCore.h: In constructor `MyClass::MyClass()':
C:/UPP/uppsrc/CtrlCore/CtrlCore.h:936: error: `void Ctrl::SetTimeCallback(int, Callback, int)' is inaccessibl
e
C:\MyApps\MyClass\main.cpp:17: error: within this context
C:/UPP/uppsrc/CtrlCore/CtrlCore.h:936: error: `void Ctrl::SetTimeCallback(int, Callback, int)' is inaccessibl
e
C:\MyApps\MyClass\main.cpp:17: error: within this context
C:\MyApps\MyClass\main.cpp:17: error: `Ctrl' is not an accessible base of `MyClass'

Any ideas how to get it working?

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Re: Problem with SetTimeCallback in TrayIcon [message #6045 is a reply to message #6040]

Sun, 29 October 2006 08:22

fallingdutch
Messages: 258
Registered: July 2006

Experienced Member

Well for a fast hack change the line

class TrayIcon : private Ctrl

class TrayIcon : public Ctrl

then it should work.

@others
Why is Ctrl a private base-class of TrayIcon? I guess to hide some functions like SetRect etc - in that case it would be great to add SetTimeCallback to TrayIcon.

Bas

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Re: Problem with SetTimeCallback in TrayIcon [message #6049 is a reply to message #6045]

Sun, 29 October 2006 09:34

zaurus
Messages: 42
Registered: May 2006

Member

Hi!

Thanks for the hint. Seems I was a bit blind and overlooked that Ctrl is inherited as private.

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Re: Problem with SetTimeCallback in TrayIcon [message #6050 is a reply to message #6049]

Sun, 29 October 2006 09:53

fallingdutch
Messages: 258
Registered: July 2006

Experienced Member

No Problem Very Happy

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Re: Problem with SetTimeCallback in TrayIcon [message #6065 is a reply to message #6045]

Sun, 29 October 2006 20:31

mirek
Messages: 14271
Registered: November 2005

Ultimate Member

fallingdutch wrote on Sun, 29 October 2006 02:22

Well for a fast hack change the line

class TrayIcon : private Ctrl

class TrayIcon : public Ctrl

then it should work.

@others
Why is Ctrl a private base-class of TrayIcon? I guess to hide some functions like SetRect etc - in that case it would be great to add SetTimeCallback to TrayIcon.

Bas

Because Ctrl is used just as implementation helper. TrayIcon really is not Ctrl.

Mirek

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Re: Problem with SetTimeCallback in TrayIcon [message #6074 is a reply to message #6065]

Sun, 29 October 2006 22:25

fallingdutch
Messages: 258
Registered: July 2006

Experienced Member

luzr wrote on Sun, 29 October 2006 20:31

Because Ctrl is used just as implementation helper. TrayIcon really is not Ctrl.

So SetTimeCallback won't work with TrayIcon at all?

Bas

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Re: Problem with SetTimeCallback in TrayIcon [message #6086 is a reply to message #6074]

Mon, 30 October 2006 07:17

mirek
Messages: 14271
Registered: November 2005

Ultimate Member

Well, ::SetTimeCallback would. But I recommend using TimerCallback, which can be considerd "highest level" version.

Trouble with ::SetTimeCallback is that you are responsible for killing callbacks in destructor (otherwise timer would call dangling callback).

Mirek

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Re: Problem with SetTimeCallback in TrayIcon [message #6101 is a reply to message #6086]

Mon, 30 October 2006 16:26

zaurus
Messages: 42
Registered: May 2006

Member

Hi Mirek!

Thanks for the explanation. I tried TimeCallback and it works fine for what I want to do.

Just to highlight in case somebody reads through the thread again. The class is TimeCallback not TimerCallback.

Zaurus

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