i got now Notify Event LVN_GETDISPINFO and have Problem with next Structure NMLVDISPINFOx
i understand that i have to make a CLASS for every Structure but how when point to "Sub"-Structure ?
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- METHOD OnDISPINFO(nOption)
st := NMLVDISPINFONEW():New()
// use "Sub"-Structure
st:item:pszText := REPLICATE(CHR(0),255)
st:item:cchTextMax := 255
// ZERO-based :iItem and :iSubItem
nRec := st:item:iItem // Array ZERO-based+1
nSub := st:item:iSubItem+1
st:item point to LVITEM Structure so i need to call another CLASS ...
https://learn.microsoft.com/en-us/windows/win32/api/commctrl/ns-commctrl-nmlvdispinfoa
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- typedef struct tagLVDISPINFO {
NMHDR hdr;
LVITEMA item;
} NMLVDISPINFOA, *LPNMLVDISPINFOA;
https://learn.microsoft.com/en-us/windows/win32/api/commctrl/ns-commctrl-nmlvdispinfow
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- typedef struct tagLVDISPINFOW {
NMHDR hdr;
LVITEMW item;
} NMLVDISPINFOW, *LPNMLVDISPINFOW;
it will be a long Way when i have to write a CLASS with Method and HB_FUNC() for each Structure
---
under Xbase++, using OT4XB, i can use OOP Style without write a CLASS and Method
OT4Xb does NOT use direct "Windows" Structure, you must define each Structure
OT4XB have already a lot "own" (WAPIST) Structure, made by Pablo Botella Navarro
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- g:\REIN\XBASE\Pablo\source\winapi_CommonStructures.cpp
#define _XBST_NMLVDISPINFO( name ) pc->Child( #name , "WAPIST_NMLVDISPINFO");
#define _XBST_NMHDR( name ) pc->Child( #name , "WAPIST_NMHDR");
#define _XBST_LVITEM( name ) pc->Child( #name , "WAPIST_LVITEM");
XB_BEGIN_STRUCTURE( NMLVDISPINFO )
_XBST_NMHDR( hdr )
_XBST_LVITEM( item )
XB_END_STRUCTURE
XB_BEGIN_STRUCTURE( NMRBAUTOSIZE )
_XBST_NMHDR ( hdr )
_XBST_BOOL ( fChanged )
_XBST_RECT ( rcTarget )
_XBST_RECT ( rcActual )
XB_END_STRUCTURE
XB_BEGIN_STRUCTURE( LVITEM )
_XBST_UINT( mask )
_XBST_int( iItem )
_XBST_int( iSubItem )
_XBST_UINT( state )
_XBST_UINT( stateMask )
_XBST_LPSTR_DYNSZ( pszText , cText)
_XBST_int( cchTextMax )
_XBST_int( iImage )
_XBST_LPARAM( lParam )
_XBST_int( iIndent )
_XBST_int( iGroupId )
_XBST_UINT( cColumns )
_XBST_POINTER32( puColumns )
_XBST_POINTER32( piColFmt )
_XBST_int( iGroup )
XB_END_STRUCTURE
btw.
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- _XBST_LPSTR_DYNSZ( pszText , cText)
i can use a "normal" String for "pszText" without using "cchTextMax" ( = LEN(cText) )
can we make in FiveWin something similar like OT4XB
it would reduce Work to define only Structure and than can use OOP insead of HB_FUNC()
