HwndWrapper Class

Article
04/29/2015

Represents a disposable wrapper around an HWND that can construct the WNDCLASS and HWND, run the WndProc and dispose of the WNDCLASS and HWND.

Inheritance Hierarchy

Object
Microsoft.VisualStudio.PlatformUI.DisposableObject
Microsoft.VisualStudio.PlatformUI.HwndWrapper

Namespace: Microsoft.VisualStudio.PlatformUI
Assembly: Microsoft.VisualStudio.Shell.12.0 (in Microsoft.VisualStudio.Shell.12.0.dll)

Syntax

'Declaration
Public MustInherit Class HwndWrapper _
    Inherits DisposableObject

public abstract class HwndWrapper : DisposableObject

public ref class HwndWrapper abstract : public DisposableObject

[<AbstractClass>]
type HwndWrapper =  
    class 
        inherit DisposableObject 
    end

public abstract class HwndWrapper extends DisposableObject

The HwndWrapper type exposes the following members.

Constructors

	Name	Description
	HwndWrapper	Creates a new instance of the class.

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Properties

	Name	Description
	Handle
	IsDisposed	Returns whether the object has been disposed once, which protects against double disposal. (Inherited from DisposableObject.)
	IsWindowSubclassed
	WindowClassAtom	Gets or creates the class atom returned from CreateWindowClassCore.

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Methods

	Name	Description
	CreateWindowClassCore	Creates the WNDCLASS atom to use for constructing this window’s handle.
	CreateWindowCore	Creates the handle for the window.
	DestroyWindowClassCore	Destroys the WNDCLASS atom created with CreateWindowClassCore.
	DestroyWindowCore	Destroys the window handle created by CreateWindowCore.
	Dispose()	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. (Inherited from DisposableObject.)
	Dispose(Boolean)	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. Standard virtual overload for IDisposable pattern. (Inherited from DisposableObject.)
	DisposeManagedResources	Allows derived classes to provide custom dispose handling for managed resources. (Inherited from DisposableObject.)
	DisposeNativeResources	Calls DestroyWindowCore and DestroyWindowClassCore. (Overrides DisposableObject.DisposeNativeResources().)
	EnsureHandle	Ensures that the handle for this window is created (creating the handle if it doesn't already exist). Note that EnsureHandle faisl to create the window's handle if it's called while in the process of creating the handle. In this case, the Handle is left uncreated for the current call.
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from DisposableObject.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	RegisterClass	Registers a window class with the given name, and with other options set to default values.
	ThrowIfDisposed	Throws an ObjectDisposedException if this object has been disposed. (Inherited from DisposableObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	WndProc	Runs the WndProc for this window.

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Events

	Name	Description
	Disposing	Raised when the event is being disposed, that is, while it is still accessible. (Inherited from DisposableObject.)

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Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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