IShellMenuCallback::CallbackSM method (shobjidl_core.h)

Receives messages from a menu band object.

Syntax

HRESULT CallbackSM(
  [in, out] LPSMDATA psmd,
            UINT     uMsg,
            WPARAM   wParam,
            LPARAM   lParam
);

Parameters

[in, out] psmd

Type: LPSMDATA

A pointer to a SMDATA structure that contains information about the menu.

uMsg

Type: UINT

A message ID. This will be one of the SMC_XXX values. See Shell Messages and Notifications for a complete list.

wParam

Type: WPARAM

A WPARAM value that contains additional information. See the specific SMC_XXX message reference for details.

lParam

Type: LPARAM

An LPARAM value that contains additional information. See the specific SMC_XXX message reference for details.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements