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TFindLogicalDevice Class Reference

Searches for LDD factory objects by pattern matching against the names of LDD factory objects. More...

#include <e32std.h>

Inheritance diagram for TFindLogicalDevice:
TFindHandleBase TFindHandle

Public Member Functions

 TFindLogicalDevice ()
 Constructs the LDD factory object with a default match pattern.
 
 TFindLogicalDevice (const TDesC &aMatch)
 Constructs the LDD factory object with a specified match pattern.
 
IMPORT_C TInt Next (TFullName &aResult)
 Finds the full name of the next LDD factory object which matches the match pattern.
 
- Public Member Functions inherited from TFindHandleBase
IMPORT_C TFindHandleBase ()
 Default constructor.
 
IMPORT_C TFindHandleBase (const TDesC &aMatch)
 Constructor with match pattern.
 
IMPORT_C void Find (const TDesC &aMatch)
 Sets a new match pattern.
 
- Public Member Functions inherited from TFindHandle
 TFindHandle ()
 
TInt Handle () const
 Gets the find-handle number associated with the Kernel object.
 

Additional Inherited Members

- Protected Member Functions inherited from TFindHandleBase
TInt NextObject (TFullName &aResult, TInt aObjectType)
 Implementation for TFindXxxxxxx::Next(TFullName &aResult) methods.
 
- Protected Member Functions inherited from TFindHandle
void Reset ()
 Resets the find handle to its initial state.
 

Detailed Description

Searches for LDD factory objects by pattern matching against the names of LDD factory objects.

An LDD factory object is an instance of a DLogicalDevice derived class.

The match pattern can be set into this object at construction; it can also be changed at any time after construction by using TFindHandleBase::Find().

After construction, call TFindLogicalDevice::Next() repeatedly to find successive LDD factory objects whose names match the current pattern. A successful call to TFindLogicalDevice::Next() means that a matching LDD factory object has been found.

The name of an LDD factory object is set by its Install() member function as part of the construction process.

API status
Published to all clients. Released API.

Definition at line 3153 of file e32std.h.

Constructor & Destructor Documentation

◆ TFindLogicalDevice() [1/2]

TFindLogicalDevice::TFindLogicalDevice ( )
inline

Constructs the LDD factory object with a default match pattern.

The default match pattern, as implemented by the base class, is the single character "*".

A new match pattern can be set after construction by calling the Find() member function of the TFindHandleBase base class.

TFindHandleBase::Find

(generated from Symbian Developer Library)

◆ TFindLogicalDevice() [2/2]

TFindLogicalDevice::TFindLogicalDevice ( const TDesC &  aMatch)
inline

Constructs the LDD factory object with a specified match pattern.

A new match pattern can be set after construction by calling TFindHandleBase::Find().

TFindHandleBase::Find

Parameters
aMatchThe match pattern.

(generated from Symbian Developer Library)

Member Function Documentation

◆ Next()

IMPORT_C TInt TFindLogicalDevice::Next ( TFullName &  aResult)

Finds the full name of the next LDD factory object which matches the match pattern.

Parameters
aResultA reference to a TBuf descriptor with a defined maximum length. If a matching LDD factory object is found, its full name is set into this descriptor. If no matching LDD factory object is found, the descriptor length is set to zero.

(generated from Symbian Developer Library)


The documentation for this class was generated from the following files: