Draw Tlatex in absolute coordinates within a canvas

Hello,
I have some trouble with placing a latex text into my TCanvas. I create a canvas, and then plot multiple Histograms into it, which makes it quite tricky to place it in X-axis coordinates. Is there a way, to put something into absolute coordinates within a Canvas?

Thx,
Thomas

if you have a TText *t , TLatex *l, you can do

t->SetNDC(); l->SetNDC();
Rene