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Sets the object information of the class object.
This function is available in the LEADTOOLS Vector Imaging Pro Toolkit.
#include "ltwrappr.h"
virtual L_INT LVectorPolybezier::UnlockObject(pPolyBezier)
Pointer to a VECTORPOLYBEZIER structure that contains the vector object information to set.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
This function is used to update the object information of the class object.
To use this method, declare a variable of type VECTORPOLYBEZIER and pass the address to the LVectorPolybezier::LockObject () function. After modifying the vector object settings, call LVectorPolybezier::UnlockObject (). LVectorPolybezier::LockObject () and LVectorPolybezier::UnlockObject () should always be called in pairs.
Before an object has been added to the LVectorBase object, using LVectorBase::AddObject or LVectorLayer::AddObject, LVectorPolybezier::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 LVectorPolybezier::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 LVectorPolybezier::UnlockObject ().
To get the current object information for a class object, call LVectorPolybezier::LockObject.
LVectorPolybezier::LockObject and LVectorPolybezier::UnlockObject must be called in pairs.
For an example, refer to LVectorPolyBezier::LockObject.