With the ToolTip.ReshowDelay property, you can shorten or lengthen the time that the System.Windows.Forms.ToolTip waits before displaying a ToolTip window after a previous ToolTip window is displayed. The first time a ToolTip window is displayed, the value of the ToolTip.InitialDelay property is used to determine the delay to apply before initially showing the ToolTip window. When a ToolTip window is currently being displayed and the user moves the pointer to another control that displays a ToolTip window, the value of the ToolTip.ReshowDelay property is used before showing the ToolTip for the new control. The ToolTip window from the previous control must still be displayed in order for the delay specified in the ToolTip.ReshowDelay property to be used; otherwise the ToolTip.InitialDelay property value is used.

If you want to have a consistent delay pattern for ToolTip windows, you can set the ToolTip.AutomaticDelay property. The ToolTip.AutomaticDelay property sets the ToolTip.AutoPopDelay, ToolTip.ReshowDelay, and ToolTip.InitialDelay properties to initial values based on a single time value. Every time the ToolTip.AutomaticDelay property is set, the ToolTip.ReshowDelay property is set to 1/5 of the ToolTip.AutomaticDelay property value. Once the ToolTip.AutomaticDelay property is set, you can independently set the ToolTip.ReshowDelay property, overriding the default value.