OpenEuphoria

Re: w32HChange event on RichEdit

• Posted by Rad <radhx at rediffmail.com> May 03, 2007
• 485 views

CChris wrote:
> 
> Damn you are right, this is trapped by the lib for edit boxes only.
> There's a quick fix (line #s refer to official win32lib v0.60.6):
> * at line 30548, there's a line that says
> }}}
<eucode>
>     {w32HChange,  w32CHG_Chg},   -- editbox notify change
> </eucode>
{{{

> Add below it:
> }}}
<eucode>
>     {w32HChange,  w32CHG_Chg},   -- RichEdit notify change
> </eucode>
{{{

> Likewise, line 30537 says
> }}}
<eucode>
>     {EDIT,EN_CHANGE},      -- editbox notify change
> </eucode>
{{{

> Add below this:
> }}}
<eucode>
>     {COMMON_CONTROL,EN_CHANGE},      -- RichEdit (and others) notify change
> </eucode>
{{{

> This is not the cleanest way, but it will work (I just checked that the
> notification is indeed received by the parent, it's just that the library
> currently ignores it).
> 
> CChris

Hi CChris,

Still something is missing.

Added the required lines in win32lib.ew, but still not getting _onChange()
invoked.

EM_GETTEXTEX  = WM_USER + 94,
    EM_GETTEXTLENGTHEX = WM_USER + 95,
-- rad 2007-05-02
    ENM_CHANGE = 1,
    EM_GETEVENTMASK = #0459,
    EM_SETEVENTMASK = #0469,
-- rad 2007-05-02
    TM_PLAINTEXT                        = 1,
    TM_RICHTEXT                                = 2,

constant kMsgCommandCode = {
    {BUTTON,BN_CLICKED},     -- Button click
    {STATIC,STN_CLICKED},    -- Label(static) click
    {LISTBOX,LBN_SELCHANGE},  -- combo/list box selection change
    {EDIT,EN_CHANGE},      -- editbox notify change
-- rad 2007-05-03
    {COMMON_CONTROL,EN_CHANGE}, -- RichEdit (and others) notify change
-- rad 2007-05-03
    {COMBO,CBN_EDITCHANGE}, -- combo notify change has occured
    {COMBO,CBN_SELCHANGE},  -- combo/list box notify change
    {COMBO,CBN_DROPDOWN},   -- The combobox is about to dropdown.
    {COMBO,CBN_CLOSEUP}     -- The combobox dropdown has just been closed
    }

constant kW32EventCode = {
    {w32HClick,   0},    -- Button
    {w32HClick,   0},    -- Label Click
    {w32HChange,  w32CHG_Sel},   -- list box notify change
    {w32HChange,  w32CHG_Chg},   -- editbox notify change
-- rad 2007-05-03
    {w32HChange,  w32CHG_Chg},   -- RichEdit notify change
-- rad 2007-05-03
    {w32HChange,  w32CHG_Chg},   -- combo data changed
    {w32HChange,  w32CHG_Sel},   -- combo selection changed
    {w32HDropDown,0}, -- combo is about to dropdown.
    {w32HCloseUp, 0}   -- combo dropdown has just been closed
    }

Anything else has to be changed/included?

Tried suggested line additions in both IDE as well as official win32lib.ew, but
getting same result.
(in official version, the line numbers were at 30538 and 30527 instead of 30548
and 30537 respectively.)

I am using WinXP SP2, hope noting to do with this.

Regards,
Rad.