Sets the object information of the class object.
This function is available in the LEADTOOLS Vector Imaging Toolkit.
#include "ltwrappr.h"
virtual L_INT LVectorChord::UnlockObject(pChord)
Pointer to a VECTORCHORD 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 VECTORCHORD and pass the address to the LVectorChord::LockObject() function. After modifying the vector object settings, call LVectorChord::UnlockObject (). LVectorChord::LockObject () and LVectorChord::UnlockObject () should always be called in pairs.
Before an object has been added to the LVectorBase object, using LVectorBase::AddObject or LVectorLayer::AddObject, LVectorChord::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 LVectorChord::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 LVectorChord::UnlockObject ().
To get the current object information for a class object, call LVectorChord::LockObject.
LVectorChord::LockObject and LVectorChord::UnlockObject must be called in pairs.
For an example, refer to LVectorChord::LockObject.
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