Notify to all dialogs in my program

[manchukuo]

hi guys I have an app that has some dialogs opened, is kind of storage system. When i update a price in a dialog i want the other ones to be notified of the change, is there a way to do this? I know that using messages is an option but how to signal all dialogs. Thanks :rolleyes:

[Maximilien]

You could implement a simple Observer[^] mechanism.

Watched code never compiles.

[David Crow]

Are the dialogs modal or modeless. Do they have a common parent?

"One man's wage rise is another man's price increase." - Harold Wilson

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[_Superman_]

The application and all its dialogs can use RegisterWindowMessage[^] with the same string to get the same value. Now use SendMessage[^] and specify the hWnd parameter as HWND_BROADCAST and the Msg parameter as the value returned by RegisterWindowMessage.

«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)

[manchukuo]

some are modal and some not but there could be at the same time 1 or more modeless with a modal

[manchukuo]

thanks, They should all have the same parent window?

[_Superman_]

Broadcast is only sent to top level windows and not child windows.

«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)