Solved

how to detect hover over button

Posted on 2013-06-03
4
495 Views
Last Modified: 2013-06-04
I have a button , IDC_BUTTON, and i would like to be notified if it has Been hovered over for 5 second or more.

Could someone show me an example of how i would  thuthis?

Thank you!
0
Comment
Question by:edvinson
  • 3
4 Comments
 
LVL 33

Accepted Solution

by:
sarabande earned 500 total points
ID: 39218139
if using mfc you would use the CMFCTooltipCtrl.

if not using mfc you need to create a new window with window class "TOOLTIPS_CLASSW" and then associate it to the button with code like the following:

INITCOMMONCONTROLSEX icc;
icc.dwSize = sizeof(INITCOMMONCONTROLSEX);
icc.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&icc);

HWND hwnd_tip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, 
  WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP, 
  CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
  NULL, NULL, hinst, NULL
);
SetWindowPos(hwnd_tip, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);

TOOLINFOW ti;
memset(&ti, 0, sizeof(TOOLINFOW));
ti.cbSize = sizeof(TOOLINFOW);
ti.hwnd = hwnd_main;
ti.uId = (UINT) hwnd_control;
ti.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
ti.lpszText = L"This tip is shown correctly, including unicode characters.";
SendMessageW(hwnd_tip, TTM_ADDTOOLW, 0, (LPARAM) &ti);

Open in new window


if using multibyte characterset you would remove W suffix, for example use SendMessage instead of SendMessageW.

in t.uId you would store the window handle of the button control. the message TTM_ADDTOOL then would make the association of the button with the tooltip.
0
 
LVL 33

Expert Comment

by:sarabande
ID: 39218147
if using mfc you could check some SAMPLES project. see

http://msdn.microsoft.com/en-us/library/cc165840(v=VS.90).aspx

Sara
0
 
LVL 1

Author Comment

by:edvinson
ID: 39218456
I'm not using MfC, does your code example work in a dialog based app?
0
 
LVL 33

Expert Comment

by:sarabande
ID: 39218551
i have not tested the code but found in a forum where they said it was working code. in my expertise it looks ok.

if that is true, it will work with dialogs as well as with any other (parent) window. if you created the dialog form from resources you can get the window handle of the button by calling GetDlgItem(hwndDlg, IDC_BUTTON);

additionally you may make the dialog window parent of the tooltip window by passing the window handle of the dialog with CreateWindowEx call when the tooltip window was created. however, that should be optional.

Sara
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Errors will happen. It is a fact of life for the programmer. How and when errors are detected have a great impact on quality and cost of a product. It is better to detect errors at compile time, when possible and practical. Errors that make their wa…
Often, when implementing a feature, you won't know how certain events should be handled at the point where they occur and you'd rather defer to the user of your function or class. For example, a XML parser will extract a tag from the source code, wh…
The goal of the video will be to teach the user the concept of local variables and scope. An example of a locally defined variable will be given as well as an explanation of what scope is in C++. The local variable and concept of scope will be relat…
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.

832 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question