<TreeView>.InfoXY (Function)

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Row number at specified point
Details about the elements returned by the treeZone constant
Miscellaneous

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<TreeView>.InfoXY (Function)

In french: <Arbre>.InfoXY

Returns the element of a TreeView control found at a given position.

Example of TreeView control:

Example

// -- Click on the TREE_TreeView1 control
X, Y are int
X = LoWord(CursorPos())
Y = HiWord(CursorPos())
// Find the number of the row corresponding to the click
RowClick is int
RowClick = TREE_TreeView1.InfoXY(treeLineNumber + treeOriginScreen, X, Y)
// Find the branch name
Branch is string
Branch = TREE_TreeView1.InfoXY(treeBranchName + treeOriginScreen, X, Y)
Trace("You've clicked the branch " + ...
Branch + "(row #" + RowClick + ")")

Syntax

<Result> = <TreeView control>.InfoXY(<Type of information> , <X> , <Y>)

<Result>: Character string, integer or Integer constant

Requested information:
Number of the row at specified point, -1 if there is no row.
Name of the branch at specified point, empty string ("") if there is no branch.
Type of hovered area. This type corresponds to one of the following constants:
tizButton "+ / -" button next to the caption of the TreeView control element.
Versions 16 and later
tizCheckmark
New in version 16
tizCheckmark
tizCheckmark Checkmark of element.
tizRight Space found on the right of element caption.
tizOut Space below the elements of the TreeView control.
tizLeft Space found on the left of element caption.
tizImage Image displayed in front of the element caption.
tizCaption Element caption.

<TreeView control>: Control name

Name of TreeView control to use.

<Type of information>: Constant or combination of constants

Requested type of information:
treeBranchID Identifier of element found at (X, Y).
treeBranchName Name of element found at (X, Y).
treeLineNumber Number of the row found at (X, Y).
treeOriginScreen If this option is specified, the origin of specified coordinates corresponds to the screen (and not the TreeView control).
This constant cannot be used on its own.
treeZone Type of hovered area

<X>: Integer

X coordinate (in pixels) to study. This coordinate is given in relation to the TreeView control (if the treeOriginScreen constant is not specified).

<Y>: Integer

Y coordinate (in pixels) to study. This coordinate is given in relation to the TreeView control (if the treeOriginScreen constant is not specified).

Remarks

Row number at specified point

If the treeLineNumber constant is used, <TreeView>.InfoXY returns the number of the row for the specified point. This row number is an "instantaneous" row number, it takes into account all the elements expanded above the row.
This row can be handled by the following syntax:

<TreeView control> [<Number of row to handle>]

See Handling an element of a TreeView control by programming for more details.

Details about the elements returned by the treeZone constant

The following illustration presents the different areas that can be retrieved by the treeZone constant.

Miscellaneous

<TreeView>.InfoXY can be used with a TreeView control that supports the duplicates. See Managing duplicates in the TreeView controls for more details.

Component : wd240obj.dll