CTabCtrl ItemAction & ItemState - c++

Question

I’ve created my own CXTabCtrl that extends CTabCtrl and override the DrawItem Function.
During the phase of rewriting the DrawItem Function, I wasn’t able to differentiate between this two states of CTabCtrl Item:
CTabCtrl item is selected and have focus.
CTabctrl item is selected but doesn’t have focus.
By focus I mean the Focus rectangle is not drawing. Here are two images that will help identify the two states:
Here’s the DrawItem current code, in which I can detect the selected states, but still Unable to detect the focus states.
Here’s a part of the DrawItem current code, in which I can detect the selected states, but still Unable to detect the focus states.
void CXtabCtrl::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
BOOL bFontSuccess = FALSE;
CFont* def_font = NULL;
CFont font_italic;
TC_ITEM tci;
CRect rect(lpDrawItemStruct->rcItem);
wchar_t szTabText[256];
wmemset(szTabText,_T('\0'),256);
RECT rectComplet;
GetClientRect(&rectComplet);
CBrush brtmp(ColorCategoryBackgroundTop);
int nbItem = GetItemCount();
tci.mask = TCIF_TEXT;
tci.pszText = szTabText;
tci.cchTextMax = sizeof(szTabText) -1;
GetItem(lpDrawItemStruct->itemID, &tci);
BOOL bSelect = (lpDrawItemStruct->itemState & ODS_SELECTED) &&
(lpDrawItemStruct->itemAction & (ODA_SELECT | ODA_DRAWENTIRE));
BOOL bfocus = (lpDrawItemStruct->itemState & ODS_FOCUS) &&
(lpDrawItemStruct->itemAction & (ODA_FOCUS | ODA_DRAWENTIRE));
if (bSelect)//Draw In a Specific Way
if (bFocus) //Draw In a Specific Way
}
So, I would be grateful if someone can describe the proper way to detect the two states of a CTabCtrl Item “Selected & Focused”, “Selected & But not focused”

Answer 1

For a standard tab control, the UI will not always draw the focus rectangle. To see the focus rectangle, the tab control must have WS_TABSTOP flag.
The focus rectangle will then be visible when user clicks the Tab key to go through the dialog's controls, or when Alt key is pressed and tab control has focus.
The focus rectangle should be drawn automatically for owner draw tab control when applicable. Make sure WS_TABSTOP is set for tab control (in dialog editor, go to tab control's properties and set "Tabstop = true")
BOOL focused = selected && (GetFocus() == this); will always be TRUE when user clicks on the tab control. ODS_NOFOCUSRECT will indicate if focus rectangle is not requested by the UI. See the example below.
Side note, sizeof(szTabText) returns the wrong value for wchar_t. Use _countof(szTabText) or sizeof(szTabText)/sizeof(*szTabText)
void CXtabCtrl::DrawItem(LPDRAWITEMSTRUCT di)
{
CDC* pDC = CDC::FromHandle(di->hDC);
TC_ITEM tci;
wchar_t text[256] = { 0 };
tci.mask = TCIF_TEXT;
tci.pszText = text;
tci.cchTextMax = _countof(text);
GetItem(di->itemID, &tci);
BOOL selected = di->itemState & ODS_SELECTED;
BOOL focused = selected && (GetFocus() == this);
//The UI may not be drawing focus rectangle, even if we click on the tab
if(di->itemState & ODS_NOFOCUSRECT)
focused = FALSE;
CString str;
if(selected) str += L"SEL ";//indicate selected
if(focused) str += L"FOC ";//indicate focused
CRect rect(di->rcItem);
pDC->TextOut(rect.left, rect.top, str);
}