CommonMessagePump Class

Artigo
10/31/2012

Allows callers to block the current thread until a handle or handles have been signaled.

Inheritance Hierarchy

System.Object
Microsoft.VisualStudio.Shell.CommonMessagePump

Namespace: Microsoft.VisualStudio.Shell
Assembly: Microsoft.VisualStudio.Shell.11.0 (in Microsoft.VisualStudio.Shell.11.0.dll)

Syntax

'Declaração
Public Class CommonMessagePump _
    Implements IVsCommonMessagePump, IOleComponent2Private, IOleComponent

public class CommonMessagePump : IVsCommonMessagePump, 
    IOleComponent2Private, IOleComponent

The CommonMessagePump type exposes the following members.

Constructors

	Name	Description
	CommonMessagePump	Initializes a new instance of CommonMessagePump.

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Properties

	Name	Description
	AllowCancel	Determines whether the wait dialog has an enabled cancel button.
	CurrentStep	Gets the current step for the progress control of the wait dialog.
	EnableRealProgress	Determines the type of progress control to use in the wait dialog.
	ProgressText	Gets the progress text.
	StatusBarText	Gets or sets the text of the status bar during the wait.
	Timeout	Gets or sets the timeout value for the modal wait.
	TotalSteps	Gets the total number of steps for the progress control of the wait dialog.
	WaitText	Gets or sets the wait dialog text.
	WaitTitle	Gets or sets the title of the wait dialog.

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Methods

	Name	Description
	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 Object.)
	GetHashCode	Serves as a hash function for a particular type. (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.)
	ModalWaitForHandles(WaitHandle)	Blocks the current thread by pumping messages until either a timeout or the specified handle has been signaled.
	ModalWaitForHandles(array<WaitHandle[], IVsCommonMessagePumpClientEvents)	Blocks the current thread by pumping messages until either a timeout or one of the specified handles has been signaled.
	ModalWaitForHandles(array<WaitHandle[], Int32%)	Blocks the current thread by pumping messages until either a timeout or one of the specified handles has been signaled.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Explicit Interface Implementations

	Name	Description
	IOleComponent.FContinueMessageLoop	Called during each iteration of a message loop.
	IOleComponent.FDoIdle	Gives the component a chance to do idle time tasks.
	IOleComponent.FPreTranslateMessage	Processes the message before it is translated and dispatched.
	IOleComponent.FQueryTerminate	Called when the component manager wishes to know if the component is in a state in which it can terminate.
	IOleComponent.FReserved1	Reserved.
	IOleComponent.HwndGetWindow	Retrieves a window associated with the component.
	IOleComponent.OnActivationChange	Notifies the component when a new object is being activated.
	IOleComponent.OnAppActivate	Notifies the component when the host application gains or loses activation.
	IOleComponent.OnEnterState	Notifies the component when the application enters or exits the specified state.
	IOleComponent.OnLoseActivation	Notifies the active component that it has lost its active status because the host or another component has become active.
	IOleComponent.Terminate	Terminates the message loop.
	IOleComponent2Private.FContinueMessageLoop	Called during each iteration of a message loop.
	IOleComponent2Private.FDoIdle	Does idle processing.
	IOleComponent2Private.FPreTranslateMessage	Handles the message.
	IOleComponent2Private.FQueryTerminate	Called when the component manager wishes to know whether the component is in a state in which it can terminate.
	IOleComponent2Private.FReserved1	Reserved.
	IOleComponent2Private.GetWaitHandlesAndTimeout	Gets the wait handles and the timeout value.
	IOleComponent2Private.HwndGetWindow	Gets the associated window.
	IOleComponent2Private.OnActivationChange	Called when a new object is being activated.
	IOleComponent2Private.OnAppActivate	Called when an application is being activated or deactivated.
	IOleComponent2Private.OnEnterState	Called when the environment has entered or left a state.
	IOleComponent2Private.OnHandleSignaled	Called when a wait handle has been signaled.
	IOleComponent2Private.OnLoseActivation	Called when the component has lost its active status because the host or another component has become active.
	IOleComponent2Private.OnTimeout	Called when there is a timeout on a message loop.
	IOleComponent2Private.Terminate	Terminates the message loop.
	IVsCommonMessagePump.EnableRealProgress	Determines the kind of progress to be displayed
	IVsCommonMessagePump.ModalWaitForObjects	Blocks the current thread by pumping messages until either a timeout or one of the specified handles has been signaled.
	IVsCommonMessagePump.ModalWaitForObjectsWithClient	Blocks the current thread by pumping messages until either a timeout or one of the specified handles has been signaled.
	IVsCommonMessagePump.SetAllowCancel	Determines whether the wait dialog has an enabled cancel button.
	IVsCommonMessagePump.SetProgressInfo	Sets progress information for the message.
	IVsCommonMessagePump.SetStatusBarText	Sets the text of the status bar during the wait.
	IVsCommonMessagePump.SetTimeout	Sets the timeout value for the modal wait.
	IVsCommonMessagePump.SetWaitText	Sets the wait dialog text.
	IVsCommonMessagePump.SetWaitTitle	Sets the title of the wait dialog with the specified title.

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Remarks

During the wait, the IDE is placed in a modal state to prevent reentrancy. If the wait takes more than 2 seconds, a wait dialog is presented to the user which can be canceled (by default). Callers can use the default behavior, which will show default text in the wait dialog, or they can provide custom values for things like the dialog text, status bar text, timeout values, and so on.

Callers can also provide a custom implementation of IVsCommonMessagePumpClientEvents, which allows the client to run code when certain events occur such as messages being processed, a timeout, or a handle being signaled. This interface can also be used to determine if the wait should continue or return.

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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