🚀 go-pugleaf

Hi

>Can I somehow retrieve the tooltip handle, to modify its
>Text.
Incase anyone is interested here is the answer to the previous 
post.

NMHDR *pNMHDR;
pNMHDR = (NMHDR*)pPreMsg->lParam;
UINT nID = static_cast<UINT>( pNMHDR->idFrom );
HWND hWndTT = GetDlgItem(pPreMsg->hwnd, nID);

Now how do I change the text, I seem to only get garbage.

TOOLTIPTEXTW* pTTTW = reinterpret_cast<TOOLTIPTEXTW*>( pPreMsg->lParam );
char* stTestX = new char;
stTestX = "1234567890";
pTTTW->lpszText = (LPWSTR)stTestX; 

The tooltip text gets modified but it shows garbage.

Marc


"Marc" <remove_Bukwheat@axess.com> wrote:
>
>Hi
>
>Thanks Remy, I am getting closer to the goal.
>
>I am running windows XP and I am capable of detecting a 
>tooltip is about to be shown, from the bottom task bar.
>Using the SetWindowsHookEx() and WM_NOTIFY i get the 
>TTN_SHOW message.  I don't get the TTN_GETDISPINFO or 
>TTN_NEEDTEXT.  The message that is recieved, comes from the
>TaskBar so when I ask for the handle of the window, I get
>the TaskBar handle not the tooltip handle.  
>
>Can I somehow retrieve the tooltip handle, to modify its
>Text.
>
>Thanks
>Marc
>
>Ps Here is what I tried to modify the text:
>The pTTTW pointer text part is invalid
>void OnNotify(IN CWPSTRUCT *pPreMsg)
>{
>    OFNOTIFY *pOFN = (OFNOTIFY*)pPreMsg->lParam; 
>
>    NMHDR *pNMHDR;
>    pNMHDR = (NMHDR*)pPreMsg->lParam;
>
>    if (pNMHDR->code == TTN_SHOW)
>    {
>//      MessageBox(0,"TTN_SHOW","TTN_SHOW", MB_OK);
>        TOOLTIPTEXT* pTTTW = reinterpret_cast<TOOLTIPTEXT*>( pPreMsg->lParam );
>        UINT nID = static_cast<UINT>( pNMHDR->idFrom );
>   
>        RECT rcWnd;   
>        GetWindowRect(pPreMsg->hwnd, &rcWnd);
>
>        char Buffer[512];
>        wsprintf(Buffer,"Top:%d  Left:%d  Bottom:%d  Right:%d \r\n", rcWnd.top, rcWnd.left, rcWnd.bottom, rcWnd.right);
>        OutputDebugString(Buffer);
>    }
>
>
>"Remy Lebeau \(TeamB\)" <gambit47.no.spam@no.spam.yahoo.com> wrote:
>>
>>"Marc" <remove_Bukwheat@axess.com> wrote in message
>>news:3fb8e5d5$1@newsgroups.borland.com...
>>
>>> The class subclassing also doesn't seem to work.
>>
>>You cannot subclass external windows.  If you want to intercept messages
>>from other applications, then you must use a message hook dll via
>>SetWindowsHookEx().
>>
>>> What I am trying to do, is trap the fact that a tooltip is
>>> about to be displayed, and modify the text of it, and maybe
>>> even its location if needed.  I already have achieved this
>>> with system menus, but can't do it with tooltips.  Where does
>>> widows do its messaging for tooltips?
>>
>>Tooltips are handled on a per-application, per-window basis.  Each
>>individual application creates and displays its own tooltip windows when
>>appropriate, like any other window.
>>
>>However, even that is not standardized.  VCL apps, for example, handle
>>tooltips very differently than, say, VB or VC++.  The VCL uses its own
>>standalone THintWindow class, which has nothing to do with the native
>>tooltip features provided by the Win32 API.  In fact, the VCL has no concept
>>of the API tooltips at all.  On the other hand, those applications that do
>>use true API tooltips will most likely receive a WM_NOTIFY message
>>containing either a TTN_GETDISPINFO or TTN_NEEDTEXT notification just prior
>>to displaying the tooltip, so you can try looking for those notifications in
>>your message hook.
>>
>>
>>Gambit
>>
>>
>