Processes Windows messages and optionally routes them to the control.
Assembly: System.Design (in System.Design.dll)
This method is called for each message the control would usually receive. This allows the designer to preprocess messages before optionally routing them to the control.
To send the message to the control’s Control.WndProc method, call on the control's designer.
The designer filters messages, so some messages will not be sent to the control. For example, mouse messages are intercepted by the designer. If this is not the behavior you want, call DefWndProc instead.
Pass m as a parameter. Optionally, you can alter or create a new System.Windows.Forms.Message to pass to the control's method.
The following table shows the flow of messages.
Without a designer
With a designer
The designer intercepts messages by replacing the Control.WindowTarget property on the control. Usually, WindowTarget points to the NativeWindow contained within the control. During design time, the designer replaces this with its own window target, and caches the original value.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2