I have used the TOOLINFO structure in masm and VC++ on XP3
Surprise,masm need a size of 2ch and vc++ 30h (+4 void *lpReserved)
The c++ and masm code are attached
Any idea on how it is possible ?
Quote
//################################################################
int AddTooltip (HWND Hwnd,HWND Hcontrole,LPSTR psztext)
{
TOOLINFO toolInfo;
DWORD retour;
ZeroMemory(&toolInfo,sizeof (toolInfo));
toolInfo.cbSize = sizeof (toolInfo);//30h masm 2ch
toolInfo.hwnd = Hwnd;
toolInfo.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
toolInfo.uId = (UINT_PTR)Hcontrole;
toolInfo.lpszText = psztext;
// problem size is not the same with masm
int taille =sizeof (toolInfo.lpszText); //4 XP3 NOT EXIST
taille = _WIN32_WINNT;//601h
//-------------------------------------
//#if (_WIN32_WINNT >= 0x0501) //need GT > 501h masm XP3 = 501
// void *lpReserved; // +++ Not need in XP3 for masm
//#endif
//} TTTOOLINFOA, NEAR *PTOOLINFOA, *LPTTTOOLINFOA;
//-------------------------------
retour = SendMessage(hToolTip, TTM_ADDTOOL, 0,(LPARAM)(LPTOOLINFO) &toolInfo) ;
return retour;
}
Quote from: ToutEnMasm on October 13, 2012, 04:11:49 AM
Any idea on how it is possible ?
Because Windows couldn't care less how big the struct is. This works just fine:
MbTIS TOOLINFO <?>
dd 100 dup(?)
...
m2m [esi.TOOLINFO.cbSize], sizeof TOOLINFO+400
_WIN32_WINNT is likely to be defined under VC, and a manifest created
QuoteFor _WIN32_WINNT > 0x0501, you must set 'cbSize' to TTTOOLINFOA_V2_SIZE (instead of
sizeof(TOOLTIPINFO)) or include the appropriate version of Common Controls in the manifest.
Otherwise the tooltip won't be displayed.
The tooltips do display with the above extra 400 bytes. Windows might have problems with less bytes, but not with more...
For masochists, here is the definition of TTTOOLINFOA_V2_SIZE from C:\Program Files\Microsoft SDKs\Windows\v7.0A\Include\CommCtrl.h:
#ifndef CCSIZEOF_STRUCT
#define CCSIZEOF_STRUCT(structname, member) (((int)((LPBYTE)(&((structname*)0)->member) - ((LPBYTE)((structname*)0)))) + sizeof(((structname*)0)->member))
#endif
#define TTTOOLINFOA_V1_SIZE CCSIZEOF_STRUCT(TTTOOLINFOA, lpszText)
#define TTTOOLINFOW_V1_SIZE CCSIZEOF_STRUCT(TTTOOLINFOW, lpszText)
#define TTTOOLINFOA_V2_SIZE CCSIZEOF_STRUCT(TTTOOLINFOA, lParam)
#define TTTOOLINFOW_V2_SIZE CCSIZEOF_STRUCT(TTTOOLINFOW, lParam)
#define TTTOOLINFOA_V3_SIZE CCSIZEOF_STRUCT(TTTOOLINFOA, lpReserved)
#define TTTOOLINFOW_V3_SIZE CCSIZEOF_STRUCT(TTTOOLINFOW, lpReserved)
typedef struct tagTOOLINFOA {
UINT cbSize;
UINT uFlags;
HWND hwnd;
UINT_PTR uId;
RECT rect;
HINSTANCE hinst;
LPSTR lpszText;
#if (_WIN32_IE >= 0x0300)
LPARAM lParam;
#endif
#if (_WIN32_WINNT >= 0x0501)
void *lpReserved;
#endif
} TTTOOLINFOA, NEAR *PTOOLINFOA, *LPTTTOOLINFOA;
Jochen,
that's awful. I luke especially that:
Quote from: jj2007 on October 13, 2012, 09:45:55 AM
#ifndef CCSIZEOF_STRUCT
#define CCSIZEOF_STRUCT(structname, member) (((int)((LPBYTE)(&((structname*)0)->member) - ((LPBYTE)((structname*)0)))) + sizeof(((structname*)0)->member))
#endif
:icon13:
Gunther
This macro can be usefull:
Quote
CCSIZEOF_STRUCT MACRO structname:REQ,member:REQ
Local structsize
chaine CATSTR <structname>,<.>,<member>
structsize equ offset chaine - offset structname + sizeof chaine
EXITM<structsize>
ENDM
Add it to the commctrl.sdk after the line:
IFNDEF CCSIZEOF_STRUCT
And you will have all the TTTOOLINFOA_V(N)_SIZE defined and more.
usage:
mov eax,CCSIZEOF_STRUCT(TTTOOLINFOA,lParam)
Quote
For _WIN32_WINNT > 0x0501, you must set 'cbSize' to TTTOOLINFOA_V2_SIZE (instead of
sizeof(TOOLTIPINFO)) or include the appropriate version of Common Controls in the manifest.
Otherwise the tooltip won't be displayed.
Is it possible to have a sample who show a working and not working code ?.