I open a word file.

I set a child window on the view window (the caption is Microsoft Word Document) of word.

when the view window redraw ,I want to my child window also redraw itself. let the child window show on the view window

it is strange problem, when I click the word frame option (like "view,review"), the view window redraw itself,

but I the view window of word did not recieved any message. I usded the spy++ to look it.

my question :

why the view window of word did not recieved any message, the view widow of word can redraw itself.

how do can I know the view window of word had overlayed my child window.

thank your for all help.