LVectorBase::EnumLayersCallBack

Summary

Processes each vector layer enumerated by the LVectorBase::EnumLayers function.

Syntax

virtual L_INT LVectorBase::EnumLayersCallBack(pVector, pLayer)

Parameters

pVECTORHANDLE pVector

Pointer to the vector handle that contains the layers to enumerate.

pVECTORLAYER pLayer

Pointer to the vector layer being processed.

Returns

Comments

The LVectorBase::EnumLayers function calls the callback function as it gets a pointer to each each vector layer.

To use the LVectorBase::EnumLayersCallBack, you must derive a class from LVectorBase and override the LVectorBase::EnumLayersCallBack member function. Note that this callback does not return an LVectorLayer object.

You can attach pLayer to an LVectorLayer class object and call LVectorLayer::GetLayerDesc to get detailed information about each enumerated layer.

Required DLLs and Libraries

• LTVKRN
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions

• LVectorBase::EnumLayers

Example

For an example, refer to LVectorBase::EnumLayers