Date: 2009sep24 Framework: MFC Language: C/C++ Q. MFC: What's the best way to have custom colors in my CTreeCtrl ? A. Use NN_CUSTOMDRAW like this: In your .h file put:

//{{AFX_MSG(CExampleDlg) void CExampleDlg::OnCustomDrawTree(NMHDR* pNMHDR, LRESULT* pResult); //}}AFX_MSG

In your .cpp file put:

BEGIN_MESSAGE_MAP(CExampleDlg, CDialog) //{{AFX_MSG_MAP(CExampleDlg) ON_NOTIFY(NM_CUSTOMDRAW, IDC_TREE, OnCustomDrawTree) //}}AFX_MSG_MAP END_MESSAGE_MAP()

and

void CExampleDlg::OnCustomDrawTree(NMHDR* pNMHDR, LRESULT* pResult) { LPNMTVCUSTOMDRAW tvcd = (LPNMTVCUSTOMDRAW) pNMHDR; *pResult = CDRF_DODEFAULT; switch(tvcd->nmcd.dwDrawStage) { case CDDS_PREPAINT: *pResult = CDRF_NOTIFYITEMDRAW; break; case CDDS_ITEMPREPAINT: tvcd->clrTextBk = tvcd->nmcd.lItemlParam; break; } } void CExampleDlg::ExampleUse() { m_Tree.SetItemData(3, RGB(0xFF, 0x00, 0x00)); // Make item 3 red }

You do NOT need to set a parameters in your .rc file for this to work. Wrong: This can also be done by setting LVS_OWNERDRAWFIXED in the .rc file and overridding DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) but that is much harder.