Fórum treeview saber que nivel está #237778

TTreeNode.Level

ndicates the level of indentation of a node within the tree view control.

property Level: Integer;

Description

The value of Level is 0 for nodes on the top level. The value of Level is 1 for their children, and so on.

The following example is taken from the custom draw demo. It shows how the OnCustomDrawItem event handler draws items and lines of the tree view after the OnCustomDraw event handler has filled in the background.

procedure TCustomDrawForm.TVCustomDrawItem(Sender: TCustomTreeView; Node: TTreeNode; State: TCustomDrawState; var DefaultDraw: Boolean);
var
NodeRect: TRect;
begin
with TV.Canvas do
begin
//If DefaultDraw it is true, any of the node´s font properties can be
//changed. Note also that when DefaultDraw = True, Windows draws the
//buttons and ignores our font background colors, using instead the
//TreeView´s Color property.

if cdsSelected in State then
begin
Font.Assign(SelectedFontDialog.Font);
Brush.Color := SelBkgColorDialog.Color;
end;
DefaultDraw := FDefaultDrawItem;
//DefaultDraw = False means you have to handle all the item drawing yourself,
//including the buttons, lines, images, and text.

if not DefaultDraw then

begin
//draw the selection rect.
if cdsSelected in State then
begin
NodeRect := Node.DisplayRect(True);
FillRect(NodeRect);
end;

NodeRect := Node.DisplayRect(False);

if None1.Checked then

//no bitmap, so paint in the background color.
begin
Brush.Color := BkgColorDialog.Color;
Brush.Style := FBrushStyle;
FillRect(NodeRect)
end
else
//don´t paint over the background bitmap.

Brush.Style := bsClear;

NodeRect.Left := NodeRect.Left + (Node.Level * TV.Indent);

//NodeRect.Left now represents the left-most portion of the expand button

DrawButton(NodeRect, Node);

NodeRect.Left := NodeRect.Left + TV.Indent + FButtonSize;

//NodeRect.Left is now the leftmost portion of the image.

DrawImage(NodeRect, Node.ImageIndex);

NodeRect.Left := NodeRect.Left + ImageList.Width;

//Now we are finally in a position to draw the text.

TextOut(NodeRect.Left, NodeRect.Top, Node.Text);

end;
end;
end;

cara, confesso q nao entendi muito, precisa tudo isso?

T+

Julio

Júlio, o Motta apenas postou um exemplo de utilização...

em resumo para saber em que nível vc está leia a propriedade Level do node selecionado...

T+