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Home » U++ Library support » U++ Widgets - General questions or Mixed problems » How do I use WIndows Message pump timer?
Re: How do I use WIndows Message pump timer? [message #3291 is a reply to message #3290] Thu, 18 May 2006 05:20 Go to previous messageGo to previous message
mirek is currently offline  mirek
Messages: 14267
Registered: November 2005
Ultimate Member
jeff1101 wrote on Wed, 17 May 2006 22:01

Sorry if this topic should not be here.


I have reused CounterCtrl. How do I write the code to set a timer that will trigger a callback function at the appropriate time ?

I dont want to start a new thread just to do this. I do want the message pump of windows to call the callback function when the timer is set.

Thanks.


void *SetTimeCallback(int delay_ms, Callback cb, void *id = NULL); // delay_ms < 0 -> periodic
void  KillTimeCallback(void *id);
bool  ExistsTimeCallback(void *id);
dword GetTimeClick();

inline
void  PostCallback(Callback cb, void *id = NULL)                { SetTimeCallback(1, cb, NULL); }

class TimeCallback
{
public:
	~TimeCallback()                      { Kill(); }

	void Set(int delay, Callback cb)     { ::SetTimeCallback(delay, cb, this); }
	void Kill()                          { ::KillTimeCallback(this); }
	void KillSet(int delay, Callback cb) { Kill(); Set(delay, cb); }
};

......

class Ctrl {
....
	void    SetTimeCallback(int delay_ms, Callback cb, int id = 0);
	void    KillTimeCallback(int id = 0);
	void    KillSetTimeCallback(int delay_ms, Callback cb, int id);
	bool    ExistsTimeCallback(int id = 0) const;
	void    PostCallback(Callback cb, int id = 0);
	void    KillPostCallback(Callback cb, int id);
.....
};


Mirek
 
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