Re: capturing windows messages to parent dialog box
"Srivatsan "Vat" Raghavan" <Srivatsan "Vat"
Raghavan@discussions.microsoft.com> wrote
the problem is that both my CDialog app and the Cmessagebox i'm using are
modal dialog boxes, and it appears that if you popup a modal dialog box
the
parent window is neither enabled (fine) nor can it receive windows
messages
(which isn't) so i don't process the packet until the modal box either
shuts
down via timeout, or cause the user clicked ok, which is of course wrong.
the packet processing happens in a thread i spawn on startup, so I'd have
thought it wouldn't be blocked, but it appears to be.
Parent windows *do* continue to process windows messages while a modal
dialog is active. Perhaps you are using some message that is misinterpreted
as a user interaction. The best choice for user-defined messages is WM_APP
+ n.
Furthermore, if your secondary thread becomes blocked due to a modal dialog
in the main thread then you have a design problem. One common mistake is to
put a never-ending loop in the main thread: As long as it is looping no
messages will be processed. Another common mistake is to use SendMessage
from the secondary thread.
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