I'm trying to use LoadToolBarEx however it always return 0 and no images appear in the toolbar, however if I use LoadBitmap the images load into the toolbar just fine.
My resource image is a PNG 32bit, 32x128 pixels, giving 4 button images.
When using LoadToolBarEx:
When using LoadBitmap:
Contained in OnInitDialog:
DWORD dwCtrlStyle = TBSTYLE_FLAT | TBSTYLE_TOOLTIPS | CBRS_SIZE_DYNAMIC;
DWORD dwStyle = AFX_DEFAULT_TOOLBAR_STYLE;
if (m_ToolBar.CreateEx(this, dwCtrlStyle,
dwStyle, CRect(1, 1, 1, 1), IDR_TOOLBAR1_PNG))
{
dwStyle = CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC;
m_ToolBar.SetPaneStyle(m_ToolBar.GetPaneStyle() | dwStyle);
}
CMFCToolBarInfo info;
m_ToolBar.SetSizes(CSize(32, 32), CSize(32, 32));
BOOL ret1 = m_ToolBar.LoadToolBarEx(IDR_TOOLBAR1_PNG,info,FALSE); // << THIS FAILS
BOOL ret2 = m_ToolBar.LoadBitmap(IDR_TOOLBAR1_PNG); // << THIS WORKS
CMFCToolBarButton but1(0, 0, L"HELLO", TRUE, 0);
CMFCToolBarButton but2(1, 1, L"HELLO", TRUE, 0);
CMFCToolBarButton but3(2, 2, L"HELLO", TRUE, 0);
but3.SetStyle(but3.m_nStyle | TBBS_DISABLED);
m_ToolBar.InsertButton(but1, 0);
m_ToolBar.InsertButton(but2, 0);
m_ToolBar.InsertButton(but3, 0);
m_ToolBar.SetToolBarBtnText(0, _T("By"));
m_ToolBar.SetToolBarBtnText(1, _T("Your"));
m_ToolBar.SetToolBarBtnText(2, _T("Command"));
m_ToolBar.InsertSeparator(2);
m_ToolBar.SetWindowPos(0, 0, 0, 400, 36, 0, 0);
In the TestDlg.rc I have:
//////////////////////////////////////////////////
//
// PNG
//
IDR_TOOLBAR1_PNG PNG "res\\toolbarNEW.png"
//////////////////////////////////////////////////
//
// Toolbar
//
//////////////////////////////////////////////////
In resource.h:
#define IDR_TOOLBAR1_PNG 135
What could be causing LoadToolBarEx to fail? there is no useful error code to work from, and I've tried various image format combinations so I don't believe it's an issue with the image resource.
I know that this is stupid problem but I am stuck with it for the past 4 days. Why it is so complicated to just modify the toolbar in the MFC apps?
I create New Visual studio MFC application that is dialog based. I create new Toolbar resource. And then how should I set images(png, bitmap, jpeg...) or whatever type to be used in my toolbar?
I have set size to w50 and h50 and I can draw inside the buttons. But I cant find way to use image.
Instead this 2 buttons that I have just tried if its working, I want to use 8 images that are in bitmap format and in png. I read somewhere that PNG is not supported by MFC applications so I converted to Bitmap.
I load my toolbar in the dialog app like this in the OnInitDialog() method:
DWORD dwCtrlStyle = TBSTYLE_FLAT | TBSTYLE_TOOLTIPS | CBRS_SIZE_DYNAMIC;
DWORD dwStyle = AFX_DEFAULT_TOOLBAR_STYLE;
CMFCToolBar::m_dblLargeImageRatio = 1;
if (m_ToolBar.CreateEx(this, dwCtrlStyle, dwStyle, CRect(1, 1, 1, 1), IDR_TOOLBAR1))
{
dwStyle = CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC;
m_ToolBar.SetPaneStyle(m_ToolBar.GetPaneStyle() | dwStyle);
CMFCToolBarInfo info;
m_ToolBar.LoadToolBarEx(IDR_TOOLBAR1, info, FALSE);
CSize sizeToolBar = m_ToolBar.CalcFixedLayout(TRUE, TRUE);
m_ToolBar.SetWindowPos(NULL, 0, 0, sizeToolBar.cx, sizeToolBar.cy, SWP_NOACTIVATE |
SWP_NOZORDER);
CPoint ptOffset(0, sizeToolBar.cy);
}
Please if someone can help me I would be really grateful. The image format doesn't matter. I just want to put image in the toolbar.
This is my app currently:
UPDATE: I have tried this way. ID_BUTTON_1 if the first button in the toolbar and i tried to change its image. But with this there is no button in the toolbar at the place for the first button. What I am doing Wrong?
VERIFY(m_toolbar.LoadBitmap(IDB_BITMAP1));
CMFCToolBarButton mbutton;
mbutton.SetImage(m_toolbar.GetImages()->GetCount() - 1);
m_toolbar.ReplaceButton(ID_BUTTON_1, CMFCToolBarButton(ID_BUTTON_1, 0));
I answered this recently and can no longer find my answer. You can use PNG images for your toolbars. Under the hood you still use the BMP version for the resource editor to create your event handlers etc. But you can then add your PNG as a resource and then load it into your dialog.
For example, I call this in my OnInitDialog function:
void CMeetingScheduleAssistantDlg::CreateToolbar()
{
DWORD dwCtrlStyle = TBSTYLE_FLAT | TBSTYLE_TOOLTIPS | CBRS_SIZE_DYNAMIC;
DWORD dwStyle = AFX_DEFAULT_TOOLBAR_STYLE;
CMFCToolBar::m_dblLargeImageRatio = 1; // AJT v20.1.7 Bug fix
if (m_ToolBar.CreateEx(this, dwCtrlStyle,
dwStyle, CRect(1, 1, 1, 1), IDR_TOOLBAR))
{
dwStyle = CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC;
m_ToolBar.SetPaneStyle(m_ToolBar.GetPaneStyle() | dwStyle);
CMFCToolBarInfo info;
info.m_uiColdResID = IDB_PNG_MAIN_TOOLBAR;
info.m_uiHotResID = IDB_PNG_MAIN_TOOLBAR;
info.m_uiLargeColdResID = IDB_PNG_MAIN_TOOLBAR;
info.m_uiLargeHotResID = IDB_PNG_MAIN_TOOLBAR;
m_ToolBar.LoadToolBarEx(IDR_TOOLBAR, info, FALSE);
CSize sizeToolBar = m_ToolBar.CalcFixedLayout(TRUE, TRUE);
m_ToolBar.SetWindowPos(NULL, 0, 0, sizeToolBar.cx, sizeToolBar.cy,
SWP_NOACTIVATE | SWP_NOZORDER);
// Move all controls down
CPoint ptOffset(0, sizeToolBar.cy);
CRect rcChild;
CWnd* pwndChild = GetWindow(GW_CHILD);
while (pwndChild)
{
if (pwndChild->GetSafeHwnd() != m_ToolBar.GetSafeHwnd())
{
pwndChild->GetWindowRect(rcChild);
ScreenToClient(rcChild);
rcChild.OffsetRect(ptOffset);
pwndChild->MoveWindow(rcChild, FALSE);
}
pwndChild = pwndChild->GetNextWindow();
}
// Resize the window
CRect rcWindow;
GetWindowRect(rcWindow);
rcWindow.bottom += sizeToolBar.cy;
MoveWindow(rcWindow, FALSE);
}
}
I don't know where my previous answer has gone to, else I would have flagged this as duplicate. #confused.
I want to insert buttons of diffrent sizes in a toolbar.
Lets say for example 2 buttons. One have a size of 32x16, the Other 16x16.
I used Two Image Lists. Each image list has it's own image size (1st 32x16 - 2nd 16x16).
But the problem is, when I compile the code i get the images loaded correctly but the buttons have the same width(32).
code:
//(1) Create the Toolbar ImageList
HIMAGELIST hImageListLarge = ImageList_Create(32, 16, ILC_COLOR8 | ILC_MASK, 1, 0);
if (!hImageListLarge)
return false;
HIMAGELIST hImageListSmall = ImageList_Create(16, 16, ILC_COLOR8 | ILC_MASK, 1, 0);
if (!hImageListSmall)
return false;
//(2) Fill the Image List
if (ImageList_Add(hImageListLarge,
LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_TB_CONNECT_TO)),
LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_TB_CONNECT_TO_MASK))) == -1)
return false;
if (ImageList_Add(hImageListSmall,
LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_TB_HELP)),
LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_TB_HELP_MASK))) == -1)
return false;
//(3) Create the Toolbar window
m_hToolbar = CreateWindowEx(0, TOOLBARCLASSNAME, nullptr,
WS_CHILD | TBSTYLE_WRAPABLE | TBSTYLE_AUTOSIZE | TBSTYLE_LIST | TBSTYLE_TOOLTIPS ,
0, 0, 0, 0, m_hWnd, nullptr, m_hInstance, nullptr);
if (m_hToolbar == nullptr)
return false;
//(4) Sets the Image list for the Toolbar
SendMessage(m_hToolbar, CCM_SETVERSION, 5, 0);
SendMessage(m_hToolbar, TB_SETIMAGELIST, 0, (LPARAM)hImageListLarge);
SendMessage(m_hToolbar, TB_SETIMAGELIST, 1, (LPARAM)hImageListSmall);
//(5) Initialize the TBBUTTON structures for each button
m_tbButtons[0].fsStyle = BTNS_SEP;
m_tbButtons[1].iBitmap = MAKELONG(0, 0);
m_tbButtons[1].idCommand = ID_CONNECTIONS_CONNECT_TO;
m_tbButtons[1].fsState = TBSTATE_ENABLED;
m_tbButtons[1].fsStyle = BTNS_BUTTON | BTNS_AUTOSIZE;
m_tbButtons[1].iString = (INT_PTR)TEXT("Connect to");
m_tbButtons[2].iBitmap = MAKELONG(0, 1);
m_tbButtons[2].idCommand = ID_HELP_ABOUT;
m_tbButtons[2].fsState = TBSTATE_ENABLED;
m_tbButtons[2].fsStyle = BTNS_BUTTON | BTNS_AUTOSIZE ;
m_tbButtons[2].iString = (INT_PTR)TEXT("Help");
//(6) Add buttons to the toolbar
SendMessage(m_hToolbar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0);
SendMessage(m_hToolbar, TB_ADDBUTTONS, 3, (LPARAM)m_tbButtons);
//(7) auto Resize the toolbar
SendMessage(m_hToolbar, TB_AUTOSIZE, 0, 0);
SendMessage(m_hToolbar, TB_SETEXTENDEDSTYLE, 0, (LPARAM)TBSTYLE_EX_MIXEDBUTTONS);
ShowWindow(m_hToolbar, SW_SHOW);
//(8) Modify the size of the separator that will hold the combobox
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_SIZE | TBIF_BYINDEX;
tbbi.cx = 500;
SendMessage(m_hToolbar, TB_SETBUTTONINFO, (WPARAM)0, (LPARAM)& tbbi);
tbbi.cx = 32;
SendMessage(m_hToolbar, TB_SETBUTTONINFO, (WPARAM)1, (LPARAM)& tbbi);
tbbi.cx = 16;
SendMessage(m_hToolbar, TB_SETBUTTONINFO, (WPARAM)2, (LPARAM)& tbbi);
//(9) Get the Rectangle occupied by the separator
RECT rcSep;
SendMessage(m_hToolbar, TB_GETITEMRECT, (WPARAM)0, (LPARAM)& rcSep);
//(10) Create the hosts comboBox
m_hComboHosts = CreateWindow(WC_COMBOBOXW, nullptr, WS_CHILD | CBS_DROPDOWN | WS_VISIBLE,
rcSep.left, rcSep.top, rcSep.right - rcSep.left, rcSep.bottom - rcSep.top, m_hToolbar,
(HMENU)IDC_COMBO_HOSTS, m_hInstance, nullptr);
if (!m_hComboHosts)
return false;
return true;
After a quick check, please modify the following code:
Comment this line of codeļ¼
SendMessage(m_hToolbar, TB_SETEXTENDEDSTYLE, 0, (LPARAM)TBSTYLE_EX_MIXEDBUTTONS);
TBSTYLE_EX_MIXEDBUTTONS
Version 5.81. This style allows you to set text for all buttons, but
only display it for those buttons with the BTNS_SHOWTEXT button style.
The TBSTYLE_LIST style must also be set. Normally, when a button does
not display text, your application must handle TBN_GETINFOTIP or
TTN_GETDISPINFO to display a tooltip. With the TBSTYLE_EX_MIXEDBUTTONS
extended style, text that is set but not displayed on a button will
automatically be used as the button's tooltip text. Your application
only needs to handle TBN_GETINFOTIP or or TTN_GETDISPINFO if it needs
more flexibility in specifying the tooltip text.
When you set TBSTYLE_EX_MIXEDBUTTONS style, it will allow you to set text for all buttons.
After testing, this style will prevent you from changing the width of the button.
If you want to display the button text, just add the BTNS_SHOWTEXT style.
Modified code:
//(1) Create the Toolbar ImageList
HIMAGELIST hImageListLarge = ImageList_Create(32, 16, ILC_COLOR8 | ILC_MASK, 1, 0);
if (!hImageListLarge)
return false;
HIMAGELIST hImageListSmall = ImageList_Create(16, 16, ILC_COLOR8 | ILC_MASK, 1, 0);
if (!hImageListSmall)
return false;
//(2) Fill the Image List
if (ImageList_Add(hImageListLarge,
LoadBitmap(hInst, MAKEINTRESOURCE(IDB_TB_CONNECT_TO)),
LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_TB_CONNECT_TO_MASK))) == -1)
return false;
if (ImageList_Add(hImageListSmall,
LoadBitmap(hInst, MAKEINTRESOURCE(IDB_TB_HELP)),
LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_TB_HELP_MASK))) == -1)
return false;
//(3) Create the Toolbar window
m_hToolbar = CreateWindowEx(0, TOOLBARCLASSNAME, nullptr,
WS_CHILD | TBSTYLE_WRAPABLE | TBSTYLE_AUTOSIZE | TBSTYLE_LIST | TBSTYLE_TOOLTIPS,
0, 0, 0, 0, m_hWnd, nullptr, hInst, nullptr);
if (m_hToolbar == nullptr)
return false;
//(4) Sets the Image list for the Toolbar
SendMessage(m_hToolbar, CCM_SETVERSION, 5, 0);
SendMessage(m_hToolbar, TB_SETIMAGELIST, 0, (LPARAM)hImageListLarge);
SendMessage(m_hToolbar, TB_SETIMAGELIST, 1, (LPARAM)hImageListSmall);
//(5) Initialize the TBBUTTON structures for each button
m_tbButtons[0].fsStyle = BTNS_SEP;
m_tbButtons[1].iBitmap = MAKELONG(0, 0);
m_tbButtons[1].idCommand = ID_CONNECTIONS_CONNECT_TO;
m_tbButtons[1].fsState = TBSTATE_ENABLED;
m_tbButtons[1].fsStyle = BTNS_BUTTON | BTNS_AUTOSIZE; // If you want display text, you can add BTNS_SHOWTEXT
m_tbButtons[1].iString = (INT_PTR)TEXT("Connect to");
m_tbButtons[2].iBitmap = MAKELONG(0, 1);
m_tbButtons[2].idCommand = ID_HELP_ABOUT;
m_tbButtons[2].fsState = TBSTATE_ENABLED;
m_tbButtons[2].fsStyle = BTNS_BUTTON | BTNS_AUTOSIZE;
m_tbButtons[2].iString = (INT_PTR)TEXT("Help");
//(6) Add buttons to the toolbar
SendMessage(m_hToolbar, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0);
SendMessage(m_hToolbar, TB_ADDBUTTONS, 3, (LPARAM)m_tbButtons);
//(7) auto Resize the toolbar
SendMessage(m_hToolbar, TB_AUTOSIZE, 0, 0);
//SendMessage(m_hToolbar, TB_SETEXTENDEDSTYLE, 0, (LPARAM)TBSTYLE_EX_MIXEDBUTTONS);
ShowWindow(m_hToolbar, SW_SHOW);
//(8) Modify the size of the separator that will hold the combobox
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_SIZE | TBIF_BYINDEX;
tbbi.cx = 44;
SendMessage(m_hToolbar, TB_SETBUTTONINFO, (WPARAM)1, (LPARAM)& tbbi);
tbbi.cx = 27;
SendMessage(m_hToolbar, TB_SETBUTTONINFO, (WPARAM)2, (LPARAM)& tbbi);
//(9) Get the Rectangle occupied by the separator
RECT rcSep;
SendMessage(m_hToolbar, TB_GETITEMRECT, (WPARAM)0, (LPARAM)& rcSep);
//(10) Create the hosts comboBox
m_hComboHosts = CreateWindow(WC_COMBOBOXW, nullptr, WS_CHILD | CBS_DROPDOWN | WS_VISIBLE,
rcSep.left, rcSep.top, rcSep.right - rcSep.left, rcSep.bottom - rcSep.top, m_hToolbar,
(HMENU)IDC_COMBO_HOSTS, hInst, nullptr);
if (!m_hComboHosts)
return false;
return true;
I used the first TB_SETBUTTONINFO message to modify the size of a button (Separator).
To make it large enough for holding a comboBox control:
//(8) Modify the size of the separator that will hold the combobox
TBBUTTONINFO tbbi;
tbbi.cbSize = sizeof(tbbi);
tbbi.dwMask = TBIF_SIZE | TBIF_BYINDEX;
tbbi.cx = 500;
SendMessage(m_hToolbar, TB_SETBUTTONINFO, (WPARAM)0, (LPARAM)& tbbi);
This is the code for creating the ComboBox:
//(9) Get the Rectangle occupied by the separator
RECT rcSep;
SendMessage(m_hToolbar, TB_GETITEMRECT, (WPARAM)0, (LPARAM)& rcSep);
//(10) Create the hosts comboBox
m_hComboHosts = CreateWindow(WC_COMBOBOXW, nullptr, WS_CHILD | CBS_DROPDOWN | WS_VISIBLE,
rcSep.left, rcSep.top, rcSep.right - rcSep.left, rcSep.bottom - rcSep.top, m_hToolbar,
(HMENU)IDC_COMBO_HOSTS, m_hInstance, nullptr);
This is working as expected.
But when I try to add two other buttons (32x16 - 16x16), I get always the same width of the first Imagelist (32).
But when I swap the image list indexes, I get (16 for both).
I am using the new Visual styles ComCtl32.lib
I am trying to create a control at run-time, but it causes assertion, and I don't know what's causing it. The control I am using is the Tree ComboBox Control from this link: https://www.codeproject.com/Articles/187762/Tree-ComboBox-Control
I added the code to register the class as follow:
CTreeComboBox::CTreeComboBox()
...
{
...
RegisterWindowClass();
}
CTreeComboBox::~CTreeComboBox()
{
m_BrushAlert.DeleteObject();
}
BOOL CTreeComboBox::RegisterWindowClass()
{
WNDCLASS wndcls;
HINSTANCE hInst = AfxGetInstanceHandle();
if (!(::GetClassInfo(hInst, _T("TreeComboBox"), &wndcls)))
{
wndcls.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
wndcls.lpfnWndProc = ::DefWindowProc;
wndcls.cbClsExtra = wndcls.cbWndExtra = 0;
wndcls.hInstance = hInst;
wndcls.hIcon = NULL;
wndcls.hCursor = AfxGetApp()->LoadStandardCursor(IDC_ARROW);
wndcls.hbrBackground = (HBRUSH)(COLOR_3DFACE + 1);
wndcls.lpszMenuName = NULL;
wndcls.lpszClassName = _T("TreeComboBox");
if (!AfxRegisterClass(&wndcls))
{
AfxThrowResourceException();
return FALSE;
}
}
return TRUE;
}
I tried to create the control at run-time using the following code in the test program:
BOOL CTestComboBoxDlg::OnInitDialog()
{
...
m_ComboBox2.CreateEx(WS_EX_CLIENTEDGE, _T("TreeComboBox"), _T(""), WS_CHILD | WS_VISIBLE | CBS_DROPDOWNLIST | WS_VSCROLL | WS_TABSTOP,
CRect(0, 0, 100, 50), this, 100000, NULL);
return TRUE; // return TRUE unless you set the focus to a control
}
I also tried creating the control using a button click event thinking that I should let the GUI finish initializing, but the same error occur:
void CTestComboBoxDlg::OnBnClickedButton1()
{
m_ComboBox2.CreateEx(WS_EX_CLIENTEDGE, _T("TreeComboBox"), _T(""), WS_CHILD | WS_VISIBLE | CBS_DROPDOWNLIST | WS_VSCROLL | WS_TABSTOP,
CRect(0, 0, 100, 50), this, 100000, NULL);
}
When I run the program, it stopped at the file dbgrptt.cpp at the following line:
__try
{
if (_CRT_ASSERT == nRptType && _InterlockedIncrement(&_crtAssertBusy) > 0)
{
/* use only 'safe' functions -- must not assert in here! */
_ERRCHECK(_itoa_s(nLine, szLineMessage, DBGRPT_MAX_MSG, 10));
OutputDebugStringA("Second Chance Assertion Failed: File ");
OutputDebugStringA(szFile ? szFile : "<file unknown>");
OutputDebugStringA(", Line ");
OutputDebugStringA(szLineMessage);
OutputDebugStringA("\n");
It stop here===> _CrtDbgBreak();
retval=-1;
__leave;
}
The program run fine if I create the control manually using the Visual Studio GUI editor, so I am not sure what's wrong. Can you help me figure out how to create this control at run-time?
Note: change the statement: TRACE1(_T("Item selected: %s\n"), GetItemText(hItem)); to TRACE(_T("Item selected: %s\n"), GetItemText(hItem)); in the file ComboTreeCtrlExt.cpp if you if you want to run the code and are using MFC
To answer my own question. Move the following code from the CTreeComboBox::PreSubclassWindow() to the CTreeComboBox::OnCreate()
CRect rect(0, 0, 0, 0);
DWORD dwStyle = WS_POPUP | WS_BORDER;
CWnd* pWnd = &m_Tree;
pWnd->CreateEx(0, WC_TREEVIEW, NULL, dwStyle, rect, GetParent(), 0, NULL);
m_Tree.Init(this);
GetClientRect(rect);
SetDroppedWidth(rect.Width());
SetDroppedHeight(m_nDroppedHeight);
dwStyle = CBS_DROPDOWNLIST & GetStyle();
ASSERT(CBS_DROPDOWNLIST == dwStyle);
I am trying to give my ComboBox an in place tooltip for long strings. However when I call SetWindowPos on the tooltip, the position is never changed. Called when TTN_SHOW is received:
::SetWindowPos(textTooltip, NULL, TipRect.left, TipRect.top, 0, 0, SWP_NOSIZE | SWP_NOACTIVATE | SWP_NOZORDER);
If I remove the SWP_NOSIZE flag and pop in some values into the width/height, then the combo box changes size to these values but the position remains the same. SetWindowPos always returns TRUE.
The tip is initialised like so:
textTooltip = CreateWindowEx(WS_EX_TRANSPARENT, TOOLTIPS_CLASS, NULL, TTS_NOPREFIX, 0, 0, 0, 0, this->GetSafeHwnd(), NULL, NULL, NULL);
if(!textTooltip)
return;
ZeroMemory(&ToolInfo, sizeof(TOOLINFO));
ToolInfo.cbSize = sizeof(TOOLINFO);
ToolInfo.uFlags = TTF_TRANSPARENT | TTF_SUBCLASS;
ToolInfo.hwnd = this->GetSafeHwnd();
ToolInfo.lpszText = "place holder"; //set in OnSelectChangeOk
ToolInfo.uId = 0;
ToolInfo.rect = TipRect; //rect is re-set in OnSelectChangeOk
::SendMessage(textTooltip, TTM_ADDTOOL, 0, (LPARAM)&ToolInfo);
Am I missing something?
you gotta do ::SendMessage(hToolWnd, TTM_TRACKPOSITION, 0, MAKELPARAM(x, y)); and set the TTF_ABSOLUTE flag in the ToolInfo.uFlags member!
Fore more information, refer to: http://msdn.microsoft.com/en-us/library/bb760422(VS.85).aspx