IDropSource Interface
The
IDropSource interface is one of the interfaces you implement to provide drag-and-drop operations in your application.
It contains methods used in any application used as a data source in a drag-and-drop operation.
The data source application in a drag-and-drop operation is responsible for:
- Determining the data being dragged based on the user's selection.
- Initiating the drag-and-drop operation based on the user's mouse actions.
- Generating some of the visual feedback during the drag-and-drop operation,
such as setting the cursor and highlighting the data selected for the drag-and-drop operation.
- Canceling or completing the drag-and-drop operation based on the user's mouse actions.
- Performing any action on the original data caused by the drop operation, such as deleting the data on a drag move.
Namespace: DevCase.Win32.InterfacesAssembly: DevCase.net48 (in DevCase.net48.dll) Version: 6.0.0.0 (6.0)
XMLNS for XAML: Not mapped to an xmlns.
[ComImportAttribute]
[GuidAttribute("00000121-0000-0000-C000-000000000046")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IDropSource
<ComImportAttribute>
<GuidAttribute("00000121-0000-0000-C000-000000000046")>
<InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)>
Public Interface IDropSource
Dim instance As IDropSource
[ComImportAttribute]
[GuidAttribute(L"00000121-0000-0000-C000-000000000046")]
[InterfaceTypeAttribute(ComInterfaceType::InterfaceIsIUnknown)]
public interface class IDropSource
[<ComImportAttribute>]
[<GuidAttribute("00000121-0000-0000-C000-000000000046")>]
[<InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)>]
type IDropSource = interface end
No code example is currently available or this language may not be supported.
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GiveFeedback
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Enables a source application to give visual feedback to the end user during a
drag-and-drop operation by providing the DoDragDrop function
with an enumeration value specifying the visual effect.
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QueryContinueDrag
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Determines whether a drag-and-drop operation should be continued, canceled, or completed.
You do not call this method directly.
The OLE DoDragDrop function calls this method during a drag-and-drop operation.
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