OpenEuphoria

2. Re: Global variables for multiple child windows

• Posted by CChris <christian.cuvier at agricul?ure.gouv.f?> Jul 17, 2007
• 589 views

Rad wrote:
> 
> Hi,
> 
> I have multiple child windows which have to setup a few global variables when
> they -
> 
> 1] open
> 2] get focus
> 3] are re-sized - maximized (after being minimized first)
> 4] moved around - moveZOrder(window, HWND_TOP) or dragged around
> 
> I am using a procedure in each window as follows:
> 
> }}}
<eucode>
> global integer MaintWin, MaintStatBar
> global sequence ProcModes, UpdtProc, SelCtl
> 
> procedure setSocMaintPars(integer self, integer event, sequence params)
> 	MaintWin     = self
> 	MaintStatBar = StatusBar380
> 	ProcModes    = SocProcModes
> 	UpdtProc     = SocUpdtProc
> 	SelCtl       = SocSelCtl
> 	
> 	setMaintModes()
> end procedure
> setHandler(SocMaint, {w32HGotFocus, w32HResize, w32HPaint},
> routine_id("setSocMaintPars"))
> </eucode>
{{{

> 
> Each window has a similar procedure, where global variables acquire window
> specific
> values.
> This procedure works fine except when I have multiple windows open
> simultaneously.
> When the top most window is dragged around, the values of the window which is
> overlapped by the dragged one always gets stored in global variables.
> 
> Is there a way to always load the global variables with the values for top
> most
> child window? How to get the id of top most child window?
> 
> Regards,
> Rad.

I assume you are using win32lib:

constant GW_CHILD = 5

myTopChildWindow=getId(w32Func(xGetWindow,{getHandle(myMainWindow),GW_CHILD}))

If you don't, check that the GetWindow API is being wrapped, and wrap it if
needed. It's wrapped in win32lib as

xGetWindow          = registerw32Function( user32, "GetWindow",
{C_LONG, C_LONG}, C_LONG)

CChris

4. Re: Global variables for multiple child windows

• Posted by CChris <christian.cuvier at ?gri?ulture.gouv.fr> Jul 19, 2007
• 545 views
• Last edited Jul 20, 2007

Rad wrote:
> 
> CChris wrote:
> > I assume you are using win32lib:
> > }}}
<eucode>
> > constant GW_CHILD = 5
> > 
> >
> > myTopChildWindow=getId(w32Func(xGetWindow,{getHandle(myMainWindow),GW_CHILD}))
> > </eucode>
{{{

> > If you don't, check that the GetWindow API is being wrapped, and wrap it if
> > needed. It's wrapped in win32lib as
> > }}}
<eucode>    xGetWindow          = registerw32Function( user32, "GetWindow",
> > {C_LONG,
> > C_LONG}, C_LONG)</eucode>
{{{

> > 
> 
> Thanks CChris. I got it working with your syntax and combination of
> {w32GotFocus,
> w32Resize, w32Mouse}.
> 
> I have one query though.
> 
> When a window title is clicked, I am getting that window to be topmost.
> But the handler set for GotFocus is not invoked.
> I have to click within that window to invoke GotFocus.
> Why so? Isn't getting the window to foreground setting focus on that window?
> 
> Regards,
> Rad.

No, because if you click in the non client area of a window, the latter will get
a WM_NCLBUTTONDOWN message instead of WM_LBUTTONDOWN etc. And the library
currently doesn't care about these non client mouse messages. You can always trap
WM_NCLBUTTONDOWN (registering the handler using setWinMsgHandler()) and fire the
w32HGotFocus event from there, if you wish.

CChris