Called by the framework when it needs to move a collapsible node.
This function is called by the framework when it needs to move a collapsible node. Usually, a node is moved when some text at the beginning of the buffer is deleted from the edit control. nDelta specifies the number of characters to move the collapsible node. If the value is greater than 0, the position is moved forward (toward the end of the internal buffer of the edit control). If it is less than 0, the position is moved backward (toward the beginning of the internal buffer of the edit control).
- Parameters
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| nDelta | Specifies the number of characters to move the collapsible node. |
