LVectorBase::StartChanging
#include "ltwrappr.h"
virtual L_INT LVectorBase::StartChanging(nChangeType, nChangeCategory)
L_UINT nChangeType; |
/* type of change */ |
L_UINT nChangeCategory; |
/* the change category */ |
This function is called by every function that affects the vector.
Parameter |
Description |
nChangeType |
The type of change to be done to the vector. For a list of all the change types and notifications refer to Bitmap and Vector Change Notifications and Notification Categories. |
nChangeCategory |
The change category. For a list of all the change types and notifications refer to Bitmap and Vector Change Notifications and Notification Categories. |
Returns
SUCCESS |
Continue the operation without interrupting it. |
< 1 |
An error occurred. Refer to Return Codes. This will halt the operation and stop it. |
Comments
This function is called by every function that affects the vector. You can override this function to have control over the different operations that are done to the vector. This function is called before doing any changes to the vector. If you want to cancel the operation, you can return an error code that is less than SUCCESS. If you return SUCCESS, the operation will continue executing. For a list of all the change types and notifications refer to Bitmap and Vector Change Notifications and Notification Categories.
Required DLLs and Libraries
LVKRN 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
Example
For an example, refer to LVectorBase::EnableAlwaysEndNotification.