controlling an accelerator

Currently, if I create an accelerator for a dialog box, the dialog box
will pop up when I execute the accerelator no matter where I am. Is
there a way I can create an accelerator that I can control. I am trying
to write something where if the user executes the accelerator (ctrl-h)
and if the users cursor was in the following edit box, IDC_EDIT1, then
popup this dialog box. While if the user is in a different edit box
(IDC_EDIT2) at the time of executing the accelerator, then popup this
other dialog box.

If I could just figure out how the accelerator is executed, then I think
I could write sometype of if-statement in the OnDraw() function to
control this.

Any response anyone can give me will be greatly appreciated.