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CMouseManager Class

  • Άρθρο

Allows a user to associate different commands with a particular CView object when the user double-clicks inside that view.

Syntax

class CMouseManager : public CObject

Members

Public Methods

Name Description
CMouseManager::AddView Adds a CView object to the Customization dialog box. The Customization dialog box enables the user to associate a double-click with a command for each of the listed views.
CMouseManager::GetViewDblClickCommand Returns the command that is executed when the user double-clicks inside the provided view.
CMouseManager::GetViewIconId Returns the icon associated with the provided view ID.
CMouseManager::GetViewIdByName Returns the view ID associated with the provided view name.
CMouseManager::GetViewNames Retrieves a list of all added view names.
CMouseManager::LoadState Loads the CMouseManager state from the Windows registry.
CMouseManager::SaveState Writes the CMouseManager state to the Windows registry.
CMouseManager::SetCommandForDblClk Associates the provided command and the provided view.

Remarks

The CMouseManager class maintains a collection of CView objects. Each view is identified by a name and by an ID. These views are shown in the Customization dialog box. The user can change the command that is associated with any view through the Customization dialog box. The associated command is executed when the user double-clicks in that view. To support this from a coding perspective, you must process the WM_LBUTTONDBLCLK message and call the CWinAppEx::OnViewDoubleClick function in the code for that CView object..

You should not create a CMouseManager object manually. It will be created by the framework of your application. It will also be destroyed automatically when the user exits the application. To get a pointer to the mouse manager for your application, call CWinAppEx::GetMouseManager.

Inheritance Hierarchy

CObject

CMouseManager

Requirements

Header: afxmousemanager.h

CMouseManager::AddView

Registers a CView object with the CMouseManager Class to support custom mouse behavior.

BOOL AddView(
    int iViewId,
    UINT uiViewNameResId,
    UINT uiIconId = 0);

BOOL AddView(
    int iId,
    LPCTSTR lpszViewName,
    UINT uiIconId = 0);

Parameters

iViewId
[in] A view ID.

uiViewNameResId
[in] A resource string ID that references the view name.

uiIconId
[in] A view icon ID.

iId
[in] A view ID.

lpszViewName
[in] A view name.

Return Value

Nonzero if successful; otherwise 0.

Remarks

In order to support custom mouse behavior, a view must be registered with the CMouseManager object. Any object derived from the CView class can be registered with the mouse manager. The string and icon associated with a view are displayed in the Mouse tab of the Customize dialog box.

It is the responsibility of the programmer to create and maintain view IDs such as iViewId and iId.

For more information about how to provide custom mouse behavior, see Keyboard and Mouse Customization.

Example

The following example demonstrates how to retrieve a pointer to a CMouseManager object by using the CWinAppEx::GetMouseManager method and the AddView method in the CMouseManager class. This code snippet is part of the State Collection sample.

GetMouseManager()->AddView(IDR_MAINFRAME, _T("My view"), IDR_MAINFRAME);

CMouseManager::GetViewDblClickCommand

Returns the command that is executed when the user double-clicks inside the provided view.

UINT GetViewDblClickCommand(int iId) const;

Parameters

iId
[in] The view ID.

Return Value

The command identifier if the view is associated with a command; otherwise 0.

CMouseManager::GetViewIconId

Retrieves the icon associated with a view ID.

UINT GetViewIconId(int iViewId) const;

Parameters

iViewId
[in] The view ID.

Return Value

An icon resource identifier if successful; otherwise 0.

Remarks

This method will fail if the view is not first registered by using CMouseManager::AddView.

CMouseManager::GetViewIdByName

Retrieves the view ID associated with a view name.

int GetViewIdByName(LPCTSTR lpszName) const;

Parameters

lpszName
[in] The view name.

Return Value

A view ID if successful; otherwise 0.

Remarks

This method searches through views registered by using CMouseManager::AddView.

CMouseManager::GetViewNames

Retrieves a list of all the registered view names.

void GetViewNames(CStringList& listOfNames) const;

Parameters

listOfNames
[out] A reference to CStringList object.

Remarks

This method fills the parameter listOfNames with the names of all the views registered by using CMouseManager::AddView.

CMouseManager::LoadState

Loads the state of the CMouseManager Class from the registry.

BOOL LoadState(LPCTSTR lpszProfileName = NULL);

Parameters

lpszProfileName
[in] A path of a registry key.

Return Value

Nonzero if successful; otherwise 0.

Remarks

The state information loaded from the registry includes the registered views, view identifiers, and the associated commands. If the parameter lpszProfileName is NULL, this function loads the CMouseManager data from the default registry location controlled by the CWinAppEx Class.

In most cases, you do not have to call this function directly. It is called as a part of the workspace initialization process. For more information about the workspace initialization process, see CWinAppEx::LoadState.

CMouseManager::SaveState

Writes the state of the CMouseManager Class to the registry.

BOOL SaveState(LPCTSTR lpszProfileName = NULL);

Parameters

lpszProfileName
[in] A path of a registry key.

Return Value

Nonzero if successful; otherwise 0.

Remarks

The state information written to the registry includes all registered views, view identifiers, and the associated commands. If the parameter lpszProfileName is NULL, this function writes the CMouseManager data to the default registry location controlled by the CWinAppEx Class.

In most cases, you do not have to call this function directly. It is called as a part of the workspace serialization process. For more information about the workspace serialization process, see CWinAppEx::SaveState.

CMouseManager::SetCommandForDblClk

Associates a custom command with a view that is first registered with the mouse manager.

void SetCommandForDblClk(
    int iViewId,
    UINT uiCmd);

Parameters

iViewId
[in] The view identifier.

uiCmd
[in] The command identifier.

Remarks

In order to associate a custom command with a view, you must first register the view by using CMouseManager::AddView. The AddView method requires a view identifier as an input parameter. Once you register a view, you can call CMouseManager::SetCommandForDblClk with the same view identifier input parameter that you supplied to AddView. Thereafter, when the user double-clicks the mouse in the registered view, the application will execute the command indicated by uiCmd. To support the custom mouse behavior, you will also need to customize the view registered with the mouse manager. For more information about custom mouse behavior, see Keyboard and Mouse Customization.

If uiCmd is set to 0, the specified view is no longer associated with a command.

See also

Hierarchy Chart
Classes
CWinAppEx Class
Keyboard and Mouse Customization