| SE_ptable_delete_shape | |
Deletes the points in a shape from the point table
LONG SE_ptable_delete_shape (SE_PTABLE ptable, const SE_SHAPE shape, ULONG mask);
| ptable | The handle to a point table |
| shape | The pointer to an SE_SHAPE structure |
| mask | The type mask for the points to delete |
The SE_ptable_delete_shape function finds all the shape’s points in the point table, and deletes them based on the evaluation of the mask.
This function evaluates the mask by performing a logical NOT OR operation on the candidate point mask and supplied mask for each point to delete. If the resulting point mask is zero, the point is deleted from the table; otherwise, it remains in the table with the selected mask bits turned off, indicating that its type is not the same as the supplied mask.
Note: If all the bits in the supplied mask are turned on, the points are deleted from the table, regardless of type.