Gets the required creation parameters when the control handle is created.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The CreateParams property should not be overridden and used to adjust the properties of your derived control. Properties such as the CreateParams.Caption, CreateParams.Width, and CreateParams.Height should be set by the corresponding properties in your control such as Control.Text, Control.Width and Control.Height. The CreateParams should only be extended when you are wrapping a standard Windows control class or to set styles not provided by the Windows Forms namespace. For more information about creating control parameters, see the CreateWindow and CreateWindowEx functions and the CREATESTRUCT structure documentation in the Windows Platform SDK reference located in the MSDN Library at http://msdn.microsoft.com/library.Notes to Inheritors
The following code example extends the CreateParams property of a Button derived class. The CreateParams.Style property is changed, which causes the button to display an Icon rather than an Image. This example requires that you have a class that inherits from the Button class.
Protected Overrides ReadOnly Property CreateParams() As System.Windows.Forms.CreateParams Get Dim SecPerm As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode) SecPerm.Demand() ' Extend the CreateParams property of the Button class. Dim cp As System.Windows.Forms.CreateParams = MyBase.CreateParams ' Update the button Style. cp.Style = cp.Style Or &H40 ' BS_ICON value Return cp End Get End Property