LVectorPolygon::UnlockObject

#include "ltwrappr.h"

virtual L_INT LVectorPolygon::UnlockObject(pPolygon)

Sets the object information of the class object.

This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.

Returns

Comments

This function is used to update the object information of the class object.

To use this method, declare a variable of type VECTORPOLYGON and pass the address to the LVectorPolygon::LockObject () function. After modifying the vector object settings, call LVectorPolygon::UnlockObject (). LVectorPolygon::LockObject () and LVectorPolygon::UnlockObject () should always be called in pairs.

Before an object has been added to the LVectorBase object, using LVectorBase::AddObject or LVectorLayer::AddObject, LVectorPolygon::UnlockObject () can be used to change ALL properties of an object. However, once the object has been added to the LVectorBase object, some properties cannot be changed using LVectorPolygon::UnlockObject (). Specifically, nPointCount, *Point, pszText, and pbyType cannot be changed. However, as long as the number of points does not change, the coordinates of the individual points can always be modified using LVectorPolygon::UnlockObject ().

To get the current object information for a class object, call LVectorPolygon::LockObject.

LVectorPolygon::LockObject and LVectorPolygon::UnlockObject must be called in pairs.

Required DLLs and Libraries

See Also

Example

For an example, refer to LVectorPolygon::LockObject.