WM_SETTEXT message send to tooltips_class32 handle

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Hi Experts
Hi Want to set the text for tooltips window
I write the following code for reading text from tooltips :

hWndToolTip = ::FindWindow("tooltips_class32",NULL);
iToolTipLen = ::SendMessage(hWndToolTip,WM_GETTEXTLENGTH,0,0);
strToolTipText = new TCHAR[iToolTipLen]; // Allocate the buffer
::SendMessage(hWndToolTip,WM_GETTEXT,(WPARAM)iToolTipLen+1,(LPARAM)strToolTipText ); // Get the needed text in strToolTipText

Now I am trying to set the text in same tooltips window by using following aproach

char * strMsg = "This user defined tooltip";
SendMessageW(hWndToolTip, WM_SETTEXT, 0, (LPARAM)strMsg);

but am not able to change tooltips text at runtime
Can u please help me to explain what is going wrong with this code n what extra I need to do???

Thanks in adv.

Posted 28-Aug-11 23:50pm

R. S. Verma

Updated 29-Aug-11 3:44am

Emilio Garavaglia

v2

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Comments

Albert Holguin 29-Aug-11 11:00am

Not exactly sure if you mean what I think when you say tooltips... but your approach may not be ideal... http://msdn.microsoft.com/en-us/library/11tydcwt%28v=vs.80%29.aspx#_core_activating_tool_tips[^]

R. S. Verma 30-Aug-11 2:55am

Hi Albert
Thanks for suggestion but I want to explain my objective for ur clerification, actually I want to access tooltips from any where like from start button, from desktop's icons or folder view.
This is done by my aproch..
Now i need to set that tooltip text again according to my requirement what i want.
thats why I am using this kind of aproach , and asking for solution.
thanks for giving suggestion...
and welcome further suggestion from you guyes...

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KarstenK · Accepted Answer · 2011-08-29T00:56:00

Solution 1

SendMessageW??? => SendMessage (without W)

and the buffer in the first snippet needs to be longer

Posted 29-Aug-11 0:56am

KarstenK

Comments

R. S. Verma 29-Aug-11 7:07am

Hi Karstenk
Thanks For Replying
but its not working as this is not able to Set text inside tooltip window
plz explain another way if possible to solve this issue.
Thanks again ...

KarstenK 29-Aug-11 7:17am

i remember that i didnt change the tooltip texts, but destroyed the old and created new ones.

R. S. Verma 5-Sep-11 1:55am

Hi ,Could you explain how to delete existing tooltip and reset it again in same position??
Thakns..

KarstenK 26-Sep-11 3:24am

delete the obejct with DestroyWindow

R. S. Verma 24-Nov-11 5:08am

Hi karstenk
thanks to ur reply. I have tried according to ur suggestion but it is not working yet. Actually Am getting english text like "Click here to start" from start button and is is getting converted into unicode and again setting into same tooltip window.
It is converted properly into unicode but not able to set the unicode text in same tooltip window.
am using
::SendMessage(HWND,WM_GETTEXT,(WPARAM)iToolTipLen+1,(LPARAM)strToolTipText );//for getting english data from tooltip

and after converted this data into unicode trying to set using
::SendMessageW(hWndToolTip,WM_SETTEXT,NULL,(LPARAM)ToolTip_Unicode);

::SendMessage(W) -> W is for unicode
.
.
.
But it is not process as i need

WM_SETTEXT is successfully sending message and returning true
..
..
..
Can u plz tell me whats going wrong .... an not understanding what I should do ..???
Thanks ):(

R. S. Verma 29-Aug-11 7:20am

Thanks Karstenk

KarstenK 24-Nov-11 5:34am

i wrote that is better to create a new tooltip window...