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.
Pointer to a VECTORPOLYGON structure that contains the vector object information to set.
|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 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
For an example, refer to LVectorPolygon::LockObject.
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