IVsHierarchyDirectionalDropDataTarget.DragOverArea Method

Definition

Namespace:

Microsoft.VisualStudio.Shell.Interop

Assembly:

Microsoft.VisualStudio.Interop.dll

Package:

Microsoft.VisualStudio.Interop v17.11.40262

Informs the hierarchy that dragging has continued over an area.

public:
 int DragOverArea(System::UInt32 grfKeyState, System::UInt32 itemid, System::UInt32 area, [Runtime::InteropServices::Out] System::UInt32 % pdwEffect);

int DragOverArea(unsigned int grfKeyState, unsigned int itemid, unsigned int area, [Runtime::InteropServices::Out] unsigned int & pdwEffect);

public int DragOverArea (uint grfKeyState, uint itemid, uint area, out uint pdwEffect);

abstract member DragOverArea : uint32 * uint32 * uint32 * uint32 -> int

Public Function DragOverArea (grfKeyState As UInteger, itemid As UInteger, area As UInteger, ByRef pdwEffect As UInteger) As Integer

Parameters

grfKeyState

UInt32

[in] Current state of the keyboard keys and the mouse modifier buttons.

itemid

UInt32

[in] Item identifier of the drop data target over which the item is being dragged. For a list of itemid values, see VSConstants.VSITEMID.

area

UInt32

[in] The area over which the item is dragged.

pdwEffect

UInt32

[in, out] On entry, pointer to the value of the pdwEffect parameter of the IVsHierarchy object, identifying all effects that the hierarchy supports. On return, the pdwEffect parameter must contain one of the effect flags that indicate the result of the drop operation. For a list of pwdEffects values, see DragEnterArea(IDataObject, UInt32, UInt32, UInt32, UInt32).

Returns

Int32

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

Valid values for grfKeyState are shown in the following table. These values can be combined using a bitwise OR operator.

Hex	Value	Description
0x0001	MK_LBUTTON	Left mouse button is clicked.
0x0002	MK_RBUTTON	Right mouse button is clicked.
0x0004	MK_SHIFT	SHIFT key is pressed.
0x0008	MK_CONTROL	CONTROL key is pressed.
0x0010	MK_MBUTTON	Middle mouse button is clicked.
0x0020	MK_ALT	ALT key is pressed.