dear all,i write a program based on MFC Dialog
i put code as below in OnInitdialog:
CPaintDC dc(this);
dc.MoveTo(..);
dc.LineTo(..);
but it seems that nothing happened when dialog initiate.

and when i put these code into OnPaint,it make effect,
i don't know why and i guessed that maybe the dialog refresh its window
after its init,
Could anyone help me?