Tree_EditLabel Method

This method starts the edit process of a tree item by displaying a text box on top of the tree item.

MyControlReference: Reference to the control in the form of MyProject_MyForm_MyControl.
ProjectFile: String identifying the project as it was passed in LoadProject.
DialogName: String identifying the dialog by name.
ControlName: String identifying the control by name.
Key: String specifying the a unique key in the tree structure identifying the tree node.; Tree Node Handle specifying the tree node uniquely.

Returns the following according to the situation:

T when successful.
Nil if the dialog is not found, the dialog does not support this function or the node is not found.

The recommended convention is passing the control identifier directly:

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(Odcl_Tree_EditLabel MyControlReference [as Reference] Key [as String or Tree Node Handle])

An alternative convention is to identify the control by providing the project file, the dialog name and the control name:

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(Odcl_Tree_EditLabel ProjectFile [as String] DialogName [as String] ControlName [as String] Key [as String or Tree Node Handle])

This method will not start the editing process if the EditLabel property of the control is set to False.

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; Initiate editing tree item label (Odcl_Tree_EditLabel MyProject_MyForm_MyControl "C_Documents and Settings")