Question about showing a form from unmanaged code

  • Thread starter Thread starter Tao
  • Start date Start date
T

Tao

hi.. Group

Some unmanaged code invokes my code to show a form.

If I use ShowDialog() to show the form, form shows but main application
stops running. If I use Show() to show the form, main application runs but
my form does not get shown.


Does anyone have experience on how to handle this? Thanks
 
Tao said:
hi.. Group

Some unmanaged code invokes my code to show a form.

If I use ShowDialog() to show the form, form shows but main application
stops running. If I use Show() to show the form, main application runs but
my form does not get shown.


Does anyone have experience on how to handle this? Thanks
Click to expand...

You need a message loop. If the main application does not provide one, you
will have to start one on a new thread. Your windows would then have to be
created from that thread as well.

Since COM objects, DDE, etc also require a message loop or work properly,
most applications do provide one.
 
Thanks Ben,

I am pretty new in this area, could you please point me some sample on how
to create a "message loop"?

My form is written in C# and a C++ component calls the form.

thanks again for your help.
 
Tao said:
Thanks Ben,

I am pretty new in this area, could you please point me some sample on how
to create a "message loop"?

My form is written in C# and a C++ component calls the form.
Click to expand...

Is the C++ component your code? If so, what framework is it using if any
(MFC, WinForms, ATL, WTL, etc)?
 
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