Tab Control Notifications

[Gavin Fitz-Henry]

Greetings,

I am in the process of writing a flight planning program. So far, the program has one main Dialog and five Tab Control Dialogs.
Using the Sample Tab Control program supplied with PBWin80, I have had success in getting the Tab Controls to work just fine.
The question I have is, "Which notification is sent to the Tab Dialog Which Presently Has Focus, when you click on another tab so as to display a different Dialog?"
I have looked on the Microsoft Web Sight and in the PB Forum with no luck yet.
Elsewhere in the program, I use WM_NOTIFY / EN_KILLFOCUS to update a Textbox when it looses focus and this works fine.
I wish to emulate this process and gather / process the information entered on this dialog when it looses focus.

Thank You
Gavin

[Michael Mattias]

WM_NOTIFY/TCN_SELCHANGING (before, may be prevented at this point)
WM_NOTIFY/TCN_SELCHANGE (too late, already changed!)
WM_NOTIFY/TCN_FOCUSCHANGE (I never used this one).

All are sent to the OWNER window, not to the tab dialogs. You'll have to control stuff from there.

[Richard Angell]

Do you have PBWin 9.0?

The reason I ask is that TABs have received a significant boost with new DDT added especially for TABs. The example code for DDT\TABS (TABCONTROL.BAS) shows how much easier TABS have become to handle than before. Changing TAB pages is handled by the DDT engine, unless you need to intercept a message.

For PBWin 8 though, you need to process the %TCN_SELCHANGING message.

[Gavin Fitz-Henry]

Thank You Michael and Richard.
As stated, Notifications are sent to the OWNER window, not the tab dialog!
This is where I was making my mistake, but all is fine now.
As for PB9, Order placed, money paid, still waiting.
Once again, thanks
Gavin

[Michael Mattias]

>As stated, Notifications are sent to the OWNER window, not the tab dialog!

What can be handy here is to save a handle to the tab's dialog ("CBHNDL") in the Tab Item's "lparam" member.

Here's a couple of functions I created to deal with the "item lparam" for tab controls..

FUNCTION TabCtrl_SetItemlParam (BYVAL hWnd AS LONG, BYVAL iRow AS LONG, BYVAL lparam AS LONG) AS LONG
    LOCAL tci AS TC_ITEM

    tci.Mask         = %TCIF_PARAM
    tci.lparam       = lparam
    TabCtrl_SetItem    hWnd, iRow, tci
END FUNCTION

FUNCTION TabCtrl_GetItemlParam (BYVAL hWnd AS LONG, BYVAL iRow AS LONG) AS LONG
    LOCAL tci AS TC_ITEM

    tci.Mask         = %TCIF_PARAM
    TabCtrl_GetItem    hWnd, iRow, tci
    FUNCTION         = tci.lparam
END FUNCTION

MCM

[Gavin Fitz-Henry]

Thank you Miahael,
More study required on my behalf.
I shall refer to the Windows Help for SDK and the COMMCTRL.inc file and learn how to use these Macros.

Gavin

[Cliff Nichols]

Gavin...If you think of Macros as "Replace my code with a function" at compile time that may help

may not...but it depends on how you think coding wise