CODEWITHSUNDEEP
c#modal-dialog
wuhi
wuhi

Reputation: 174

disable all windows that are related with the current application

I have a main app that is able to call .net methods. My .net method starts a new thread that shows a modal form.

Now my .net method needs to disable all windows from the main app while the modal form is shown.

How can I do this?

I was thinking about the win32 method "GetWindow",, but then I would need the handle of the main-app form.

In my example you see the main app that calls the method with the modal dialog. When I click on the main app while the threadingform-dlg is open, the threadingform-dlg should blink.

main app with modal dialog

Upvotes: 2

Views: 718

Answers (4)

Otiel
Otiel

Reputation: 18743

foreach (Form openedForm in Application.OpenForms) {
    if (openedForm.GetType() == FormToClose) {
        openedForm.Hide();
    }
}

Upvotes: 1

Eranga
Eranga

Reputation: 32437

You can get the all open windows of the application by accessing OpenForms property.

var forms = Application.OpenForms;

Upvotes: 1

MusiGenesis
MusiGenesis

Reputation: 75296

You should not show a modal form from a separate thread (you really shouldn't even show a non-modal form from a thread). Instead, display the modal form from your application's main form. If this requires moving some of your code around, so be it.

Upvotes: 3

bleo
bleo

Reputation: 59

Use the ShowDialog() function of the form instead of Show(). It will automatically make the form modal.

I don't know if it disables all other windows or only the calling one, try.

Upvotes: 4

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