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c#winformseventsmovewndproc
Ozzy
Ozzy

Reputation: 10643

C# Form Move Stopped Event

Is there any event in C# that fires when the form STOPS being moved. Not while its moving.

If there is no event for it, is there a way of doing it with WndProc?

Upvotes: 7

Views: 11597

Answers (5)

user6474751
user6474751

Reputation: 1

I tested ResizeChanged event, and it works fine, however I don't know relation between move and resize, but it works for me

Upvotes: 0

anon
anon

Reputation:

I had the same problem with a user control, but it does not have the ResizeEnd event. The solution, which worked is to override the WndProc method and listen for EXITSIZEMOVE.

See example here

Upvotes: 2

Fredrik Mörk
Fredrik Mörk

Reputation: 158409

This is not a failsafe solution, but it's pure .NET and it's dead simple. Add a timer to your form, set it to a relatively short delay (100-150 ms seemed OK for me). Add the following code for the Form.LocationChanged and Timer.Tick events:

private void Form_LocationChanged(object sender, EventArgs e)
{
    if (this.Text != "Moving")
    {
        this.Text = "Moving";
    }
    tmrStoppedMoving.Start();
}

private void Timer_Tick(object sender, EventArgs e)
{
    tmrStoppedMoving.Start();
    this.Text = "Stopped";
}

If you want more exact handling (knowing exactly when the mouse button is release in the title bar and such) you will probably need to dive into monitoring windows messages.

Upvotes: 2

Adam Ruth
Adam Ruth

Reputation: 3655

The ResizeEnd event fires after a move ends. Perhaps you could use that.

Upvotes: 19

Brian
Brian

Reputation: 25844

Just set a flag to true when onmove events are fired. If a mouseup event happens and the flag is true, the form stopped being moved.

I admit this probably won't work in the case of a user moving a form via the keyboard, but that's pretty rare.

Upvotes: 0

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