wpf-devexpress-dot-xpf-dot-map-dot-mapcontrol-dot-calchitinfo-x28-system-dot-windows-dot-point-x29.md
Returns information on the map elements located at the specified point.
Namespace : DevExpress.Xpf.Map
Assembly : DevExpress.Xpf.Map.v25.2.dll
NuGet Package : DevExpress.Wpf.Map
public MapHitInfo CalcHitInfo(
Point point
)
Public Function CalcHitInfo(
point As Point
) As MapHitInfo
| Name | Type | Description |
|---|---|---|
| point | Point |
A Point structure which specifies the test point coordinates relative to the map’s top-left corner.
|
| Type | Description |
|---|---|
| MapHitInfo |
A MapHitInfo object, which contains information about the map elements located at the test point.
|
Use the CalcHitInfo method to determine which element is located at the specified point. For instance, this can be used when handling the map’s MouseDown event to determine which element was clicked. In such cases, pass the current mouse pointer’s coordinates as the method’s parameter.
This example shows how to use the MapControl.CalcHitInfo method to determine which map shape is located at the specified point.
MapShape shape = mapControl.CalcHitInfo(e.GetPosition(mapControl)).MapPath as MapShape;
Dim shape As MapShape = TryCast(mapControl.CalcHitInfo(e.GetPosition(mapControl)).MapPath, MapShape)
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the CalcHitInfo(Point) method.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
GeoPoint point = (GeoPoint)mapControl.ScreenPointToCoordPoint(e.GetPosition(mapControl));
var hi = mapControl.CalcHitInfo(e.GetPosition(mapControl));
foreach (var item in vectorLayer.Data.DisplayItems) {
See Also