On a Form I have a RichTextBox.
I do the call for EM_SETEVENTMASK with ENM_REQUESTRESIZE
The user control's WndProc writes to the consol to keep track of any
EN_REQUESTRESIZE messages.
As I type into the RichTextBox I see the results of the console writes in
the Output window.
I add a Panel to the Form and move the RichTextBox into it.
I no longer get the console writes.
Seems like the Panel is eating the EN_REQUESTRESIZE messages and not passing
them to the Form .
What are the rules for passing Windows messages if control A is on Control B
which is on a form?
Do Windows messages from A get to the form?
Can I force that to happen?
Is there a solution for me?
Thanks