IVsHierarchyDirectionalDropDataTarget::DragOverArea Method (UInt32, UInt32, UInt32, UInt32)
Informs the hierarchy that dragging has continued over an area.
Assembly: Microsoft.VisualStudio.Shell.Interop.11.0 (in Microsoft.VisualStudio.Shell.Interop.11.0.dll)
int DragOverArea( unsigned int grfKeyState, unsigned int itemid, unsigned int area, unsigned int% pdwEffect )
Parameters
- grfKeyState
-
Type:
System::UInt32
[in] Current state of the keyboard keys and the mouse modifier buttons.
- itemid
-
Type:
System::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
-
Type:
System::UInt32
[in] The area over which the item is dragged.
- pdwEffect
-
Type:
System::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.
Return Value
Type: System::Int32If the method succeeds, it returns S_OK. If it fails, it returns an error code.
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. |