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LEADTOOLS Vector C++ Class Library Help

VECTOREVENT

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typedef struct tagVECTOREVENT
{
   L_INT nSize;
   L_UINT uType;
   VECTOR_EVENT_STATUS Status;
   L_INT nErrorCode;
   pVECTOROBJECT pObject;
   L_VOID  *pObjectDesc;
   pVECTORLAYER pLayer; 
   pVECTORLAYERDESC pLayerDesc;
   pVECTORGROUP pGroup;
   pVECTORGROUPDESC pGroupDesc;
   pVECTORPOINT pPoint1;
   pVECTORPOINT pPoint2;
   L_UINT32 dwFlags;
   L_VOID  *pUserData;
} VECTOREVENT,  * pVECTOREVENT;

The VECTOREVENT structure holds information about an event.

Member

Description

nSize

Size of this structure. Used for versioning.

uType

The type of event that was generated. For a list of possible values, refer to the Comments section below.

Status

Status of the event. Possible values are:

 

Value

Meaning

 

VECTOR_EVENT_STATUS_BEFORE

The action that generated the event is about to be taken.

 

VECTOR_EVENT_STATUS_AFTER

The action that generated the event was just completed.

nErrorCode

Error code associated with the event. For a list of possible values, refer to the Return Codes.

pObject

Pointer to the vector object associated with the event. This structure member is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pObjectDesc

Pointer to an object descriptor. This structure is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pLayer

Pointer to the vector layer associated with the event. This structure member is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pLayerDesc

Pointer to a layer descriptor. This structure is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pGroup

Pointer to the vector group associated with the event. This structure member is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pGroupDesc

Pointer to a group descriptor. This structure is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pPoint1

Pointer to a general point 1. This structure is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pPoint2

Pointer to a general point 2. This structure is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

dwFlags

Flag that provides processing information. This member is only valid for certain event types. For a list of the events for which this member is valid, refer to the table in the Comments section below.

pUserData

User defined data.

Comments

The uType member will correspond to the vector function called, for example if you call LVectorBase::Empty, an event of type VECTOR_EVENT_EMPTY will be fired.

The following table lists all the defined event types plus values for the structure variables, when defined. Not all structure members are defined for every event. For example, the Object member is not defined for a VECTOR_EVENT_FREE event, but it is defined for the VECTOR_EVENT_TRANSLATION event. The data contained in the Object structure member corresponds to the vector object that was translated. More information can be obtained by using the pObject as an argument to an LVectorObject constructor, or to a constructor of a derived class of LVectorObject (i.e. LVectorRectangle.)

The pVECTOROBJECT(pObject), pVECTORGROUP(pGroup), pVECTORLAYER(pLayer) pointers can all be passed to class library constructors to create class library objects. The LVectorObject (and derived classes of LVectorObject) has a constructor that takes a pVECTOROBJECT, the LVectorGroup has a constructor that takes a pVECTORGROUP, and the LVectorLayer class has a constructor that takes a pVECTORLAYER.

 

Event

Function

pObject

pObjectDesc

pLayer

pLayerDesc

pGroup

pGroupDesc

pPoint1

pPoint2

dwFlags

VECTOR_EVENT_FREE

LVectorBase::SetHandle
LVectorBase::Free

LVectorBase::~LVectorBase

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_EMPTY

LVectorBase::Empty

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_COPY

LVectorBase::Copy

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_VIEWPORT

LVectorBase::SetViewport

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_PAN

LVectorBase::SetPan

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_LOCKED

LVectorBase::SetLocked

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

bLock

VECTOR_EVENT_BACKGROUND

LVectorBase::SetBackgroundColor

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Color

VECTOR_EVENT_PALETTE

LVectorBase::SetPalette

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_VIEWMODE

LVectorBase::SetViewMode

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

nMode

VECTOR_EVENT_TRANSLATION

LVectorBase::SetTranslation
LVectorDialog::DoModalVectorTranslate

LVectorObject::SetTranslation

The modified object(s).

Not used

Not used

Not used

Not used

Not used

pTranslation

Not used

dwFlags (where applicable)

VECTOR_EVENT_ROTATION

LVectorBase::SetRotation
LVectorDialog::DoModalVectorRotate

LVectorObject::SetRotation

The modified object(s).

Not used

Not used

Not used

Not used

Not used

pRotation

pOrigin

dwFlags (where applicable)

VECTOR_EVENT_SCALE

LVectorBase::SetScale
LVectorDialog.DoModalVectorScale

LVectorObject::SetScale

The modified object(s).

Not used

Not used

Not used

Not used

Not used

pScale

pOrigin

dwFlags (where applicable)

VECTOR_EVENT_ORIGIN

LVectorBase::SetOrigin

Not used

Not used

Not used

Not used

Not used

Not used

pOrigin

Not used

Not used

VECTOR_EVENT_APPLYTRANSFORMATION

LVectorBase::ApplyTransformation

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_BINDVERTICESMODE

LVectorBase::SetBindVerticesMode

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

nMode

VECTOR_EVENT_PARALLELOGRAM

LVectorBase::SetParallelogram

Not used

Not used

Not used

Not used

Not used

Not used

pMin

pMax

Not used

VECTOR_EVENT_CAMERA

LVectorBase::SetCamera
LVectorDialog::DoModalVectorCamera

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_METAFILE

LVectorBase::ConvertFromEMF
LVectorBase::ConvertFromWMF

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_ATTACHTOWINDOW

LVectorBase::AttachToWindow

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_MARKER

LVectorBase::SetMarker

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_HITTEST

LVectorBase::SetHitTest
LVectorDialog::DoModalVectorHitTest

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_POLYGONMODE

LVectorBase::SetPolygonMode

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

nMode

VECTOR_EVENT_COPYFROMCLIPBOARD

LVectorBase::CopyFromClipboard

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_ADDLAYER

LVectorBase::AddLayer, LVectorDialog::DoModalVectorNewLayer

Not used

Not used

pLayer identifier of the LVectorBase object

Not used

Not used

Not used

Not used

Not used

dwFlags (where applicable)

VECTOR_EVENT_DELETELAYER

LVectorLayer::DeleteLayer

Not used

Not used

pLayer identifier of the LVectorBase object

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_EMPTYLAYER

LVectorLayer::EmptyLayer

Not used

Not used

pLayer identifier of the LVectorBase object

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_COPYLAYER

LVectorBase::CopyLayer

Not used

Not used

pLayer identifier of the LVectorBase object

Not used

Not used

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_SETLAYER

LVectorLayer::SetLayerDesc

Not used

Not used

pLayer identifier of the LVectorBase object

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_SETACTIVELAYER

LVectorBase::SetActiveLayer

Not used

Not used

pLayer identifier of the LVectorBase object

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_ADDGROUP

LVectorBase::AddGroup

Not used

Not used

Not used

Not used

pGroup identifier of the LVectorBase object

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_DELETEGROUP

LVectorGroup::DeleteGroup

Not used

Not used

Not used

Not used

pGroup identifier of the LVectorBase object

Not used

Not used

Not used

Not used

VECTOR_EVENT_DELETEGROUPCLONES

LVectorGroup::DeleteGroupClones

Not used

Not used

Not used

Not used

pGroup identifier of the LVectorBase object

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_EMPTYGROUP

LVectorGroup::EmptyGroup

Not used

Not used

Not used

Not used

pGroup identifier of the LVectorBase object

Not used

Not used

Not used

Not used

VECTOR_EVENT_COPYGROUP

LVectorBase::CopyGroup

Not used

Not used

Not used

Not used

pGroup identifier of the LVectorBase object

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_SETGROUP

LVectorGroup::SetGroupDesc

Not used

Not used

Not used

Not used

pGroup identifier of the LVectorBase object

Not used

Not used

Not used

Not used

VECTOR_EVENT_ADDOBJECT

LVectorLayer::AddObject, LVectorBase::AddObject, LVectorDialog::DoModalVectorNewObject

The modified object(s).

Not used

pLayer identifier of the LVectorBase object

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_DELETEOBJECT

LVectorBase::DeleteObject

The modified object(s).

Not used

Not used

Not used

Not used

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_COPYOBJECT

LVectorBase::CopyObject

The modified object(s).

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_SETOBJECT

LVectorObject::UnlockObject
LVectorDialog::DoModalVectorEditObject

The modified object.

Not used

Not used

Not used

Not used

Not used

Not used

Not used

nType

VECTOR_EVENT_EXPLODEOBJECT

LVectorObject::ExplodeObject

The modified object(s).

Not used

Not used

Not used

Not used

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_SELECTOBJECT

LVectorObject::SelectObject

The modified object(s).

Not used

Not used

Not used

Not used

Not used

Not used

Not used

bSelect

VECTOR_EVENT_OBJECTATTRIBUTES

LVectorObject::SetObjectAttributes
LVectorBase::SetObjectAttributes

The modified object(s).

Not used

Not used

Not used

Not used

Not used

Not used

Not used

dwFlags

VECTOR_EVENT_LOADFILE

LVectorBase::Load
LVectorWindow::Load

LVectorFile::StartFeedLoad

LVectorFile::StopFeedLoad

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_ADDOBJECTTOGROUP

LVectorGroup::AddObject

The modified object(s).

Not used

Not used

Not used

pGroup identifier of the LVectorBase object

Not used

Not used

Not used

Not used

VECTOR_EVENT_CREATENEWWINDOW

LVectorObject::GotoHyperlink

Not used

pObjectDesc

Not used

Not used

Not used

Not used

Not used

Not used

Not used

VECTOR_EVENT_INVERTCOLORS

LVectorBase::InvertColors

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

Not used

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