| public DragOver ( uint grfKeyState, uint itemid, uint &pdwEffect ) : int | ||
| grfKeyState | uint |
/// Current state of the keyboard keys and the mouse modifier buttons. See
/// |
| itemid | uint | Item identifier of the drop data target over which the item is being dragged |
| pdwEffect | uint |
/// On entry, reference 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 |
| return | int | |
public override int DragOver(uint grfKeyState, uint itemid, ref uint pdwEffect)
{
pdwEffect = (uint) DropEffect.None;
// Dragging items to a project that is being debugged is not supported
// (see VSWhidbey 144785)
var dbgMode = VsShellUtilities.GetDebugMode(Site) & ~DBGMODE.DBGMODE_EncMask;
if (dbgMode == DBGMODE.DBGMODE_Run || dbgMode == DBGMODE.DBGMODE_Break)
{
return VSConstants.S_OK;
}
if (IsClosed || site == null)
{
return VSConstants.E_UNEXPECTED;
}
// We should also analyze if the node being dragged over can accept the drop.
if (!CanTargetNodeAcceptDrop(itemid))
{
return VSConstants.E_NOTIMPL;
}
if (dropDataType != DropDataType.None)
{
pdwEffect = (uint) QueryDropEffect(dropDataType, grfKeyState);
}
return VSConstants.S_OK;
}