msgbox is behind the main window in xojo

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messagebox goes behind grid …in ownerdraw handling.

Pressing the Alt key brings them to the front…

Hi there, All modal dialogs suddenly started appearing BEHIND a PictureBox, making it look like the application has crashed.

MessageBox stays hidden until the parent form refocuses.

MessageBox sometimes hidden behind the main form.

Modal common dialog not showing until pressing the alt key.

C++ Dialog launched from C# does not get focus on Opening.

ALT + TAB is not working after displaying MessageBox on modal dialog….

Dialog MessageBox sometimes hidden behind the main form.

This also happens very often, with Win32 & WinAPI, with a Form class, etc.: This is not limited to MessageBox using C# /. An alternative workaround is to put all your custom drawing code in a DrawSubItem event handler and paint the background for the entire item (including subitems) only when the DrawListViewSubItemEventArgs.ColumnIndex value is 0. See the example in the OwnerDraw reference topic for a workaround that invalidates each row when the extra event occurs.

NET ListView control, it has a bug.īecause of a bug in the underlying Win32 control, the DrawItem event occurs without accompanying DrawSubItem events once per row in the details view when the mouse pointer moves over the row, causing anything painted in a DrawSubItem event handler to be overpainted by a custom background drawn in a DrawItem event handler. you are not invalidating your Control.Īlso, if you are using. Make sure, that in your OnPaint / DrawItem / DrawSubitem / etc.

It turns out I had a custom drawing routine for one of the form’s controls (OwnerDraw / OnPaint), and I was changing the property that was causing the redraw cycle. Imagine calling the following C# code: MessageBox.Show(this, 'Some text.', 'Title', MessageBoxButtons.OKCancel) Īfter executing this line, the Message Box is not visible, it seems like hidden behind your form, without input focus, mouse clicks cause default beeps, and it suddenly appears if you click Alt or F10 key.

Msgbox is behind the main window in xojo