Thread: Tooltip won't display over toolbar button

I can't for the life of me work out why this tooltip won't work. All I want is for the tip to display over a toolbar button. The toolbar button definition is here:

Code:

tbb[0].iBitmap = STD_FILENEW;
		tbb[0].fsState = TBSTATE_ENABLED;
		tbb[0].fsStyle = TBSTYLE_BUTTON;
		tbb[0].idCommand = ID_NEW;

and the code I am using to create the tooltip is here:

Code:

hwndTip = CreateWindowEx(0, TOOLTIPS_CLASS, NULL, TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT, 
				CW_USEDEFAULT, CW_USEDEFAULT, hwnd, NULL, hInstance, NULL);

		SetWindowPos(hwndTip, HWND_TOPMOST,0, 0, 0, 0,
             SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);

		SendMessage(hwndTip, TTM_ACTIVATE, TRUE, 0);
		TipInfo.cbSize = sizeof (TipInfo);
		TipInfo.uFlags = TTF_SUBCLASS;
		
		TipInfo.hinst = hInstance;
		TipInfo.hwnd = hwnd; /*Have also tried htool (handle to the toolbar) and hwndRB (handle to the rebar in which the toolbar is situated)*/
	
		
		TipInfo.uId = ID_NEW;
		TipInfo.lpszText = "New";
		
		SendMessage(hwndTip, (UINT)TTM_ADDTOOL, (WPARAM)0, (LPARAM) &TipInfo);

EDIT: Sorry for the shoddy formatting. The code is cut and pasted from MSVC++ and i don't know why it came out like this.

Everything compiles and runs just fine but no tooltip is displayed over the button. Is there anything that i am doing wrong or anything that I have missed out? Any help is appreciated, thanks.

My guess would be the lack of WS_POPUP when you create the tooltip control. Please also verify that InitCommonControlsEx has been called. Anyway here is some code that I use:

Code:

//set up tooltips
hwndTip = CreateWindowEx(0, TOOLTIPS_CLASS, NULL,
	WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP,
	CW_USEDEFAULT, CW_USEDEFAULT,
	CW_USEDEFAULT, CW_USEDEFAULT,
	hDlg, NULL, hMainInstance,
	NULL);

SetWindowPos(hwndTip, HWND_TOPMOST,0, 0, 0, 0,
	SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);

SendMessage(hwndTip,TTM_SETMAXTIPWIDTH,0,200);

ZeroMemory(&ti, sizeof(ti) );

ti.cbSize = sizeof(ti);
ti.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
ti.hwnd = hDlg;
ti.hinst = hMainInstance;

ti.uId = (UINT) GetDlgItem(hDlg, CNTRL_FOLDER);
ti.lpszText = MAKEINTRESOURCE(TT_FOLDER);
SendMessage(hwndTip,TTM_ADDTOOL, 0, (LPARAM) &ti);

Thanks.

InitCommonControlsEx() is called further up. I had a look at your code and I have managed to get a tooltip displayed when I hover the cursor over the toolbar. This is the code:

Code:

hwndTip = CreateWindowEx(0, TOOLTIPS_CLASS, NULL, WS_POPUP | TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT, 
				CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

		SetWindowPos(hwndTip, HWND_TOPMOST,0, 0, 0, 0,
             SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);

		SendMessage(hwndTip, TTM_ACTIVATE, TRUE, 0);
		ZeroMemory(&TipInfo, sizeof(TipInfo) );

		TipInfo.cbSize = sizeof (TipInfo);
		TipInfo.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
		
		TipInfo.hinst = hInstance;
		TipInfo.hwnd = htool;
	
		
		TipInfo.uId = (UINT) htool;
		TipInfo.lpszText = "New";
		
		SendMessage(hwndTip, TTM_ADDTOOL, (WPARAM)0, (LPARAM) &TipInfo);

However what I actually want is to have a different tooltip for each toolbar button. But when I remove the TTF_IDISHWND and change

Code:

TipInfo.uId = (UINT) htool;

to

Code:

TipInfo.uId = (UINT) ID_NEW;

it no longer displays a tooltip. Does anyone know how to display a tooltip just for the current toolbar button and not for the whole toolbar? Thanks.

Sorry, that is for individual controls. Tooltips are set up for a toolbar in a different way.

The toolbar control must be created with the TBSTYLE_TOOLTIPS style.

Code:

hwndTB = CreateWindowEx(0, TOOLBARCLASSNAME, NULL,
	WS_CHILD | TBSTYLE_TOOLTIPS | TBSTYLE_FLAT,0, 0, 0, 0,
	hDlg,NULL, hInst, NULL);

Call this or the text will be displayed on the toolbar

Code:

//Prevents text from displaying
SendMessage(hwndTB, TB_SETMAXTEXTROWS,0,0);

You must fill in the iString member of the TBBUTTON struct.

MSDN:
iString
Zero-based index of the button string, or a pointer to a string buffer that contains text for the button.

Now add strings to your toolbar control and associate them with your buttons.

Code:

tbb[0].iString = SendMessage(hwndTB, TB_ADDSTRING, 0, (LPARAM) "test");
tbb[1].iString = SendMessage(hwndTB, TB_ADDSTRING, 0, (LPARAM)  "another test");

And Bob's your uncle.

Here is a full toolbar creation function I did a few years ago. It could be vastly improved but it might give you some ideas.

Code:

HWND CreateAToolBar(void)
{

HWND hwndTB;
INT index, stdidx;

//Buttons
TBBUTTON tbb [ ] =
{
{STD_FILENEW, M_FILE_NEW, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},
{STD_FILEOPEN, M_FILE_OPEN, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},
{STD_FILESAVE, M_FILE_SAVE, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},

{5, 0, TBSTATE_ENABLED, BTNS_SEP, 0,0L, 0},

{TBIMG_REFRESH, M_FILE_REFRESH, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},

{5, 0, TBSTATE_ENABLED, BTNS_SEP, 0,0L, 0},

{STD_CUT, M_EDIT_CUT, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},
{STD_COPY,M_EDIT_COPY, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},
{STD_PASTE, M_EDIT_PASTE, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},
{STD_UNDO, M_EDIT_UNDO, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},

{5, 0, TBSTATE_ENABLED, BTNS_SEP, 0,0L, 0},

{TBIMG_FIND, M_SRCH_FND, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},

{5, 0, TBSTATE_ENABLED, BTNS_SEP, 0,0L, 0},

{TBIMG_CALC,M_CALC, TBSTATE_ENABLED, BTNS_BUTTON, 0,0L, 0},

};

//Button Strings
LPSTR toolStrings[ ] = {
"New", "Open", "Save","", "Refresh", "", "Cut", "Copy", "Paste","Undo","","Find","","Calculator",
};


//Create a toolbar that has ToolTips associated with it.
hwndTB = CreateWindowEx(0, TOOLBARCLASSNAME, (LPSTR) NULL,
	WS_CHILD | TBSTYLE_TOOLTIPS | TBSTYLE_FLAT,0, 0, 0, 0,
	hDlg,(HMENU) M_MAIN, hInst, NULL);


// Send the TB_BUTTONSTRUCTSIZE message, which is required for
// backward compatibility.
SendMessage(hwndTB, TB_BUTTONSTRUCTSIZE,(WPARAM) sizeof(TBBUTTON), 0);

//Prevents text from displaying
SendMessage(hwndTB, TB_SETMAXTEXTROWS,0,0);

// Associate strings with buttons
for (index = 0;index < 14;index++) {
	if (*toolStrings[index] != *"")
		tbb[index].iString = SendMessage(hwndTB, TB_ADDSTRING, 0, (LPARAM) (LPSTR) toolStrings[index]);
	else tbb[index].iString = 0;
}

//Add standard images
TBADDBITMAP tb;
tb.hInst = HINST_COMMCTRL;
tb.nID = IDB_STD_SMALL_COLOR;
SendMessage (hwndTB, TB_ADDBITMAP, 0, (LPARAM)&tb);

//Add custom images
tb.hInst = hInst;
tb.nID = BITMAP_ICONS;
stdidx = SendMessage (hwndTB, TB_ADDBITMAP, 2, (LPARAM)&tb);

//update bitmap indexes for custom images
tbb[4].iBitmap += stdidx; //refresh
tbb[13].iBitmap +=stdidx; //calculator
tbb[11].iBitmap +=stdidx; //Find - Windows does provide a find image
	//but it is a magnifying glass and not the standard binoculars.

//Add buttons
//Don't add calculator button or last separator if we
//couldn't find the calculator.
SendMessage(hwndTB, TB_ADDBUTTONS, (WPARAM) (calcFound ? 14 : 12), (LPARAM) (LPTBBUTTON) &tbb);

//Size and show window
SendMessage(hwndTB, TB_AUTOSIZE, 0, 0);
ShowWindow(hwndTB, SW_SHOWNORMAL);

//Get bottom of toolbar so we can size  edit box
RECT toolRect;
SendMessage(hwndTB,TB_GETRECT,0,(WPARAM) &toolRect);
toolBottom = toolRect.bottom;


return hwndTB;
}

Thank you SO much. It worked perfectly. I have been looking for a straight answer for ages on the web without success. Thanks again.

Assumably, you could also do it this way but I haven't tried.

static LPSTR toolStrings[ ] = {
"New", "Open",};
tbb[0].iString = toolStrings[0];
tbb[1].iString = toolStrings[1];

Any chance you could help me with my problem?
http://cboard.cprogramming.com/showt...threadid=40753