Author: Tomas Rutkauskas

I would like to write the text of each node in a TTreeview by including the text in 
the standard way with a trailing number written in bold and color blue.

Answer:

This is a code snippet of a descendant of a TTreeView that handles the bold state 
of a treenode:
1   
2   function TTreeView1.GetNodeBoldState(Node: TTreeNode): boolean;
3   var
4     TVItem: TTVItem;
5   begin
6     result := false;
7     if not Assigned(Node) then
8       exit;
9     with TVItem do
10    begin
11      mask := TVIF_STATE;
12      hitem := Node.ItemId;
13      result := TreeView_GetItem(Node.Handle, TVItem) and ((State and TVIS_BOLD) <> 
14  0);
15    end;
16  end;
17  
18  procedure TTreeView1.SetNodeBoldState(Node: TTreeNode; value: boolean);
19  var
20    TVItem: TTVItem;
21  begin
22    if not Assigned(Node) then
23      exit;
24    fillchar(TVItem, sizeof(TVItem), 0);
25    with TVItem do
26    begin
27      mask := TVIF_STATE or TVIF_HANDLE;
28      hitem := Node.ItemId;
29      StateMask := TVIS_BOLD;
30      if value then
31        State := TVIS_BOLD;
32      TreeView_SetItem(Node.Handle, TVItem);
33    end;
34  end;