Word dialog shown programmatically doesn't respond to mouse clicks

Question

The following piece of code shows an Insert table dialog:

Dialog d = WordApp.Dialogs[WdWordDialog.wdDialogTableInsertTable];
int result = d.Show(ref missing);
if (result == -1)  // if user pressed OK
{
    d.Execute();
}

The problem is that the dialog does not respond to mouse clicks. It responds to keyboard input, though.
Moreover, if I press Alt+Tab (to switch to some other running app) and then press Alt+Tab again (to switch back to my app), it responds to both mouse and keyboard input.

My guess is that my application doesn't 'know' that a dialog box was shown (because it doesn't happen in a regular Form.ShownDialog way) and it keeps the focus.

How can I solve this problem?

Answer 1

I worked it out.

I'm not exactly sure why but this helps: before displaying the dialog I disable the main application form, then after the dialog is displayed I enable it back.

Dialog d = WordApp.Dialogs[WdWordDialog.wdDialogTableInsertTable];

MainApplicationFormInstance.Enabled = false;
int result = d.Display(ref missing);
MainApplicationFormInstance.Enabled = true;

if (result == -1)  // user pressed OK
{
    d.Execute();
}