Override at least this function if you need to support search in a tool window.
Namespace:  Microsoft.VisualStudio.Shell
Assembly:  Microsoft.VisualStudio.Shell.12.0 (in Microsoft.VisualStudio.Shell.12.0.dll)
Syntax
'Declaration
Public Overridable Function CreateSearch ( _
    dwCookie As UInteger, _
    pSearchQuery As IVsSearchQuery, _
    pSearchCallback As IVsSearchCallback _
) As IVsSearchTask
public virtual IVsSearchTask CreateSearch(
    uint dwCookie,
    IVsSearchQuery pSearchQuery,
    IVsSearchCallback pSearchCallback
)
public:
virtual IVsSearchTask^ CreateSearch(
    unsigned int dwCookie, 
    IVsSearchQuery^ pSearchQuery, 
    IVsSearchCallback^ pSearchCallback
)
abstract CreateSearch : 
        dwCookie:uint32 * 
        pSearchQuery:IVsSearchQuery * 
        pSearchCallback:IVsSearchCallback -> IVsSearchTask  
override CreateSearch : 
        dwCookie:uint32 * 
        pSearchQuery:IVsSearchQuery * 
        pSearchCallback:IVsSearchCallback -> IVsSearchTask
public function CreateSearch(
    dwCookie : uint, 
    pSearchQuery : IVsSearchQuery, 
    pSearchCallback : IVsSearchCallback
) : IVsSearchTask
Parameters
dwCookie
Type: UInt32The cookie that identifies the search.
pSearchQuery
Type: Microsoft.VisualStudio.Shell.Interop.IVsSearchQueryThe search query.
pSearchCallback
Type: Microsoft.VisualStudio.Shell.Interop.IVsSearchCallbackA callback interface whose functions need to be called when the search task is complete or has made more progress.
Return Value
Type: Microsoft.VisualStudio.Shell.Interop.IVsSearchTask
The search task that was created. The search begins when an explicit call to that Start method on the task is made.
Implements
IVsWindowSearch.CreateSearch(UInt32, IVsSearchQuery, IVsSearchCallback)
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.