Disable the main form while a dialog box is shown (Views: 708)
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Problem/Question/Abstract: I'm trying to set up a "Please Wait" box. I want it to be modal in the sense that my main form is deactivated while I have this box showing. But, in the function that displays the "Please Wait" box, I want the code to continue rather than stall, waiting for the box to close. Answer: { ... } WaitBox.Show; {shows your WaitBox} Enabled := false; {disables the whole main form (Self.Enabled)} Application.ProcessMessages; {let the two forms update themselves} try { ... Do next steps } finally Enabled := true; WaitBox.Hide; end; Note that the WaitBox must be visible before you can disable the main form. You needn't disable each single component. With this construction you can easily add a Cancel-Button to your WaitBox. Set a public property (CancelPressed) to TRUE if the Cancel Button is pressed and you can do something like this: { ... } repeat { next steps } Application.ProcessMessages; until WaitBox.CancelPressed { ... } |