OpenEuphoria

2. Re: removing windows style

• Posted by Derek Parnell <dparnell at BIGPOND.NET.AU> Nov 07, 2000
• 442 views

----- Original Message -----
>From: =A9koda
>how do i remove windows style from already created window?

Hi =A9koda ,
there is a routine in win32lib called "removeStyle" that was meant to do
this. However, it doesn't work for Windows. I've fixed this and the code
below is what you need. You can replace the existing removeStyle with thi=
s
new code. This fix will be posted to the patch area later today.

I've also include a new procedure called "addStyle" which does  the
opposite, namely adding styles to the existing ones.

------------------------------------------------------------
--/topic Utilities
--/proc removeStyle( id, style )
--/desc Remove a style from a control.
--If /i style is an atom then only the normal Windows style is modified,
-- but if style is a sequence, it must be a tw-atom sequence. The first i=
s
-- the normal styles, and the second is the extended styles.
--
--Example
--/code
--        removeStyle(w1, {
--                 -- normal styles
--                 (WS_MINIMIZEBOX+WS_MAXIMIZEBOX+WS_THICKFRAME),
--                 -- extended styles
--                 (WS_EX_CLIENTEDGE)
--                   })
--/endcode
global procedure removeStyle( integer id, object styles )
    atom curStyle, styleMask, hWnd, style

    hWnd =3D getHandle( id )
    if sequence(styles) then
        style =3D styles[1]
    else
        style =3D styles
    end if

    if style !=3D 0 then
        curStyle =3D c_func( xGetWindowLong, { hWnd, GWL_STYLE })
        styleMask =3D xor_bits( #FFFFFFFF, style )
        style =3D and_bits( styleMask ,curStyle )
        VOID =3D c_func( xSetWindowLong,{ hWnd, GWL_STYLE, style })
    end if

    if sequence(styles)
      and styles[2] !=3D 0
    then
        style =3D styles[2]
        curStyle =3D c_func( xGetWindowLong, { hWnd, GWL_EXSTYLE })
        styleMask =3D xor_bits( #FFFFFFFF, style )
        style =3D and_bits( styleMask ,curStyle )
        VOID =3D c_func( xSetWindowLong,{ hWnd, GWL_EXSTYLE, style })
    end if

    if window_type[id] =3D Window then
        VOID =3D c_func(xSetForegroundWindow, {hWnd})
        VOID =3D c_func(xSetWindowPos, {hWnd, 0, 0, 0, 0, 0, 39})
    end if
end procedure

--/topic Utilities
--/proc addStyle( id, style )
--/desc Add a style to a control.
--If /i style is an atom then only the normal Windows style is modified,
-- but if style is a sequence, it must be a tw-atom sequence. The first i=
s
-- the normal styles, and the second is the extended styles.
--
--Example
--/code
--        addStyle(w1, {
--                 -- normal styles
--                 (WS_MINIMIZEBOX+WS_MAXIMIZEBOX+WS_THICKFRAME),
--                 -- extended styles
--                 (WS_EX_CLIENTEDGE)
--                })
--/endcode

global procedure addStyle( integer id, object styles )
    atom curStyle, hWnd, style

    hWnd =3D getHandle( id )
    if sequence(styles) then
        style =3D styles[1]
    else
        style =3D styles
    end if

    if style !=3D 0 then
        curStyle =3D c_func( xGetWindowLong, { hWnd, GWL_STYLE })
        style =3D or_bits( style ,curStyle )
        VOID =3D c_func( xSetWindowLong,{ hWnd, GWL_STYLE, style })
    end if

    if sequence(styles)
      and styles[2] !=3D 0
    then
        style =3D styles[2]
        curStyle =3D c_func( xGetWindowLong, { hWnd, GWL_EXSTYLE })
        style =3D or_bits( style ,curStyle )
        VOID =3D c_func( xSetWindowLong,{ hWnd, GWL_EXSTYLE, style })
    end if

    if window_type[id] =3D Window then
        VOID =3D c_func(xSetForegroundWindow, {hWnd})
        VOID =3D c_func(xSetWindowPos, {hWnd, 0, 0, 0, 0, 0, 39})
    end if
end procedure

----------------------------

cheers,
------
Derek Parnell
Melbourne, Australia
(Vote [1] The Cheshire Cat for Internet Mascot)