reactos/dll/win32/browseui/CTaskbarList.cpp

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/*
* PROJECT: browseui
* LICENSE: LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
* PURPOSE: ITaskbarList implementation
* COPYRIGHT: Copyright 2018 Mark Jansen (mark.jansen@reactos.org)
*/
#include "precomp.h"
/***********************************************************************
* ITaskbarList2 implementation
*/
#define TWM_GETTASKSWITCH (WM_USER + 236)
CTaskbarList::CTaskbarList()
: m_hTaskWnd(NULL)
{
m_ShellHookMsg = RegisterWindowMessageW(L"SHELLHOOK");
}
CTaskbarList::~CTaskbarList()
{
}
HWND CTaskbarList::TaskWnd()
{
HWND hTrayWnd;
if (m_hTaskWnd && ::IsWindow(m_hTaskWnd))
return m_hTaskWnd;
hTrayWnd = FindWindowW(L"Shell_TrayWnd", NULL);
if (hTrayWnd)
{
m_hTaskWnd = (HWND)SendMessageW(hTrayWnd, TWM_GETTASKSWITCH, 0L, 0L);
}
return m_hTaskWnd;
}
void CTaskbarList::SendTaskWndShellHook(WPARAM wParam, HWND hWnd)
{
HWND hTaskWnd = TaskWnd();
if (hTaskWnd && m_ShellHookMsg)
::SendMessageW(hTaskWnd, m_ShellHookMsg, wParam, (LPARAM)hWnd);
}
HRESULT WINAPI CTaskbarList::MarkFullscreenWindow(HWND hwnd, BOOL fFullscreen)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}
/***********************************************************************
* ITaskbarList implementation
*/
HRESULT WINAPI CTaskbarList::HrInit()
{
if (m_ShellHookMsg == NULL)
return E_OUTOFMEMORY;
if (!TaskWnd())
return E_HANDLE;
return S_OK;
}
HRESULT WINAPI CTaskbarList::AddTab(HWND hwnd)
{
SendTaskWndShellHook(HSHELL_WINDOWCREATED, hwnd);
return S_OK;
}
HRESULT WINAPI CTaskbarList::DeleteTab(HWND hwnd)
{
SendTaskWndShellHook(HSHELL_WINDOWDESTROYED, hwnd);
return S_OK;
}
HRESULT WINAPI CTaskbarList::ActivateTab(HWND hwnd)
{
SendTaskWndShellHook(HSHELL_WINDOWACTIVATED, hwnd);
return S_OK;
}
HRESULT WINAPI CTaskbarList::SetActiveAlt(HWND hwnd)
{
UNIMPLEMENTED;
return E_NOTIMPL;
}