On 2/6/07, Ryan Pusztai <[EMAIL PROTECTED]> wrote:
> On 2/6/07, Ryan Pusztai <[EMAIL PROTECTED]> wrote:
> > Well I am still a bit lost.
> >
> > First, here is the documentation for the function I want to wrap.
> > /*!
> > The constructor creates an timer object with the given
> > properties. The timer at this moment is not started. This
> > will be done with the start() member function.
> > \param msec time interval after that the the variable
> > pointed by exitflag is setting to one.
> > \param exitflag the adress of an integer, which was set
> > to one after the given time interval.
> > \warning The integer variable shouldn't leave it's valid
> > range, before the timer was finished. So never take a
> > local variable.
> > \param exitfnc A function, which was called after msec.
> > If you don't want this, refer a NULL pointer.
> > */
> > timer(unsigned int msec,int* exitflag,void*(*exitfnc)(void*));
> >
> > I am willing to take the last parameter out for now, at least until I
> > understand Lua/wxLua better. I still don't know how to just re-wrap
> > the call to the function using 'NULL' as the third parameter and
> > passing whatever the user wanted for the rest of the parameters.
> >
> > Here is a example, notice I just want to remove the third parameter
> > and then write a function to override the default.
> >
> > Interface file: (.i)
> >
> > //-----------------------------------------------------------------------------
> > // Timer class
> >
> > %class %delete %noclassinfo %encapsulate timer
> > timer(unsigned int msec,int* exitflag)
> > int start()
> > int stop()
> > %endclass
> >
> > I just don't know where to start on the overrides.hpp. I am sorry if
> > my questions are simple. I just want to use wxLua without integrating
> > it into an application for my first exercise. I have plans to, but as
> > you can see I don't get the whole integrating wxLua with C++. Thanks
> > for your patients.
> >
> > I don't know anything about the wxLua and C++ connection, so I don't
> > understand the function
> >
> > "...new wxLuaObject(wxlState, 3);"
> >
> > What is the 3?
>
> I worked on a piece of code from looking at examples and this is the
> best I could come up with. Most of it is sudo-code to give you an idea
> of what I want to do.
Do you need to know when the exitFlag is 1? From the docs it looks
like in C++ you'd take an integer, set it to 0, call the timer(msec,
&exitFlag, NULL) and could then check exitFlag periodically to see if
the timer is done. A really lame hack could use a wxPoint (or better
yet your own minimal C++ class that has only an int member).
Alternatively if you will only make one timer call at a time you can
use "static int exitFlag" in the function, see below.
Lua code:
exitFlag = wx.wxPoint(0,0) -- not local since it MUST exist for the
life of the timer function call
timer(1000, exitFlag)
> %override wxLua_function_timer
> // %function timer(unsigned int msec, int* exitflag)
> static int LUACALL wxLua_function_timer(lua_State *L)
> {
> wxLuaState wxlState(L);
> int mSec = 0;
// int* exitFlag = NULL; (could make this a static var if
only one timer call at a time)
wxPoint *exitFlag = (wxPoint *)wxlState.GetUserDataType(3,
s_wxluatag_wxPoint);
>
> timer* returns;
>
> // get the lua passed in parameters
int y = (int)wxlState.GetNumberType(3);
> mSec = wxlState.getInt(1);
> exitFlag = wxlState.getIntPrt(2);
>
> // call timer constructor
> returns = new timer(mSec, exitFlag, NULL);
>
> // push the result datatype
> wxlState.PushUserDataType(s_wxluatag_timer, returns);
>
> // return the number of parameters
> return 0;
> }
> %end
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