344 lines
9.3 KiB
C++
344 lines
9.3 KiB
C++
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//////////////////////////////////////////////////////////////////////////////
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//
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// File: tray.cpp
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//
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// Description:
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//
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// Copyright (c) 2000 Microsoft Corp.
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//
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//////////////////////////////////////////////////////////////////////////////
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// App Includes
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#include "precomp.h"
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#include "main.h"
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#include "resource.h"
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///////////////////////////
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// GVAR_LOCAL
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//
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// Global Variable
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//
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static struct GVAR_LOCAL
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{
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HINSTANCE hInstance;
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HMENU hMenu;
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} GVAR_LOCAL =
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{
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NULL,
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NULL
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};
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////////////////////////// Function Prototypes ////////////////////////////////
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static HRESULT AddTaskBarIcon(HWND hwnd,
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UINT uiIconID,
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UINT uiCallBackMsg,
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ULONG ulStrID);
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static HRESULT ModifyTaskBarIcon(HWND hwnd,
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UINT uiNewIconID,
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ULONG ulStrID);
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static HRESULT DeleteTaskBarIcon(HWND hwnd);
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//////////////////////////////////////////////////////////////////////
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// Tray::Init
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//
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HRESULT Tray::Init(HINSTANCE hInstance,
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HWND hwndDlg,
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UINT uiWindowsUserMsgId)
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{
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HRESULT hr = S_OK;
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GVAR_LOCAL.hInstance = hInstance;
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// delete the taskbar notification area icon.
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DeleteTaskBarIcon(hwndDlg);
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// Place the icon in the taskbar notification area.
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AddTaskBarIcon(hwndDlg,
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IDI_MONITOR,
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uiWindowsUserMsgId,
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0);
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// load our popup menu
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GVAR_LOCAL.hMenu = ::LoadMenu(GVAR_LOCAL.hInstance,
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MAKEINTRESOURCE(IDM_TRAY_POPUP_MENU));
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return hr;
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}
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//////////////////////////////////////////////////////////////////////
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// Tray::Term
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//
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// Desc:
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//
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HRESULT Tray::Term(HWND hwndDlg)
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{
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HRESULT hr = S_OK;
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// unload the popup menu
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::DestroyMenu(GVAR_LOCAL.hMenu);
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GVAR_LOCAL.hMenu = NULL;
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// delete the tray icon.
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DeleteTaskBarIcon(hwndDlg);
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return hr;
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}
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//////////////////////////////////////////////////////////////////
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// Tray::PopupMenu
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//
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//
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HRESULT Tray::PopupMenu(HWND hwndOwner)
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{
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HRESULT hr = S_OK;
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POINT pt = {0}; // stores mouse click
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HMENU hmenuTrackPopup = NULL; // pop-up menu
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// needed to correct a bug with TrackPopupMenu in Win32
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SetForegroundWindow(hwndOwner);
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// TrackPopupMenu cannot display the top-level menu, so get
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// the handle of the first pop-up menu.
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hmenuTrackPopup = GetSubMenu(GVAR_LOCAL.hMenu, 0);
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GetCursorPos(&pt);
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// Display the floating pop-up menu. Track the left mouse
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// button on the assumption that this function is called
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// during WM_CONTEXTMENU processing.
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TrackPopupMenu(hmenuTrackPopup,
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TPM_RIGHTALIGN | TPM_LEFTBUTTON,
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pt.x,
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pt.y,
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0,
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hwndOwner,
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NULL);
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// needed to correct a bug with TrackPopupMenu in Win32
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PostMessage(hwndOwner, WM_USER, 0, 0);
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return S_OK;
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}
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//////////////////////////////////////////////////////////////////////
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// AddTaskBarIcon
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//
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// Desc: Adds an icon to the task bar.
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//
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// Params: - hwnd, handle of main window.
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// - uiID, id of icon.
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// - uiCallBackMsg, WM_USER message to send to hwnd when
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// event occurs on icon.
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// - ulStrID, string table text of tool tip to display for
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// this icon.
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//
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static HRESULT AddTaskBarIcon(HWND hwnd,
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UINT uiIconID,
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UINT uiCallBackMsg,
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ULONG ulStrID)
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{
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HRESULT hr = S_OK;
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BOOL bRes;
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NOTIFYICONDATA tnid;
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HICON hIconHandle = NULL;
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TCHAR szToolTip[255 + 1] = {0};
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if (ulStrID != 0)
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{
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::LoadString(GVAR_LOCAL.hInstance,
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ulStrID,
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szToolTip,
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sizeof(szToolTip) / sizeof(TCHAR));
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}
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if (SUCCEEDED(hr))
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{
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// load the specified icon.
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hIconHandle = (HICON) ::LoadImage(GVAR_LOCAL.hInstance,
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MAKEINTRESOURCE(uiIconID),
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IMAGE_ICON,
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16,
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16,
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LR_DEFAULTCOLOR);
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if (hIconHandle == NULL)
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{
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hr = E_FAIL;
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DBG_ERR(("AddTaskBarIcon, failed ot load icon, hr = 0x%08lx",
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hr));
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}
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}
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if (SUCCEEDED(hr))
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{
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// add the icon to the notification tray
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tnid.cbSize = sizeof(NOTIFYICONDATA);
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tnid.hWnd = hwnd;
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tnid.uID = MSPRJCTR_TASKBAR_ID;
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tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
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tnid.uCallbackMessage = uiCallBackMsg;
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tnid.hIcon = hIconHandle;
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if (szToolTip[0] != '\0')
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{
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_tcsncpy(tnid.szTip, szToolTip, sizeof(tnid.szTip) / sizeof(TCHAR));
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}
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else
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{
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tnid.szTip[0] = '\0';
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}
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bRes = Shell_NotifyIcon(NIM_ADD, &tnid);
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if (!bRes)
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{
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hr = E_FAIL;
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DBG_ERR(("Failed to set TaskBar Icon, hr = 0x%08lx",
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hr));
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}
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}
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if (hIconHandle)
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{
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// destroy the icon
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DestroyIcon(hIconHandle);
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}
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return hr;
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}
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//////////////////////////////////////////////////////////////////////
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// ModifyTaskBarIcon
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//
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// Desc: Modifies a taskbar icon/tooltip (or both) to a new
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// one. Note, if ulStrID is 0, then the tool tip is NOT
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// modified. If uiNewIconID is 0, then the icon is not
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// modified. If both are 0, then actually nothing changes.
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//
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//
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// Params: - hwnd, handle of main window.
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// - uiNewIconID, resource ID of icon to display.
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// - ulStrID, string resource ID of string to use for tooltip.
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// Note your string will be prefixed with "InterLYNX - "
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//
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static HRESULT ModifyTaskBarIcon(HWND hwnd,
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UINT uiNewIconID,
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ULONG ulStrID)
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{
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HRESULT hr = S_OK;
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BOOL bRes = TRUE;
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NOTIFYICONDATA tnid = {0};
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HICON hIconHandle = NULL;
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TCHAR szToolTip[255 + 1] = {0};
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BOOL bContinue = TRUE;
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if ((uiNewIconID == 0) && (ulStrID == 0))
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{
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bContinue = FALSE;
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}
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else
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{
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bContinue = TRUE;
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}
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if (bContinue)
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{
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// if we are instructed to modify the tool tip.
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if (ulStrID != 0)
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{
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::LoadString(GVAR_LOCAL.hInstance,
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ulStrID,
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szToolTip,
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sizeof(szToolTip) / sizeof(TCHAR));
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}
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// if a new icon was specified.
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if (uiNewIconID != 0)
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{
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// load the specified icon.
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hIconHandle = (HICON) ::LoadImage(GVAR_LOCAL.hInstance,
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MAKEINTRESOURCE(uiNewIconID),
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IMAGE_ICON,
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16,
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16,
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LR_DEFAULTCOLOR);
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}
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// add the icon to the notification tray
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tnid.cbSize = sizeof(NOTIFYICONDATA);
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tnid.hWnd = hwnd;
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tnid.uID = MSPRJCTR_TASKBAR_ID;
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tnid.uFlags = 0;
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tnid.hIcon = 0;
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if (ulStrID != 0)
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{
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_tcsncpy(tnid.szTip, szToolTip, sizeof(tnid.szTip) / sizeof(TCHAR));
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tnid.uFlags = tnid.uFlags | NIF_TIP;
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}
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if (uiNewIconID != 0)
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{
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tnid.hIcon = hIconHandle;
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tnid.uFlags = tnid.uFlags | NIF_ICON;
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}
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bRes = Shell_NotifyIcon(NIM_MODIFY, &tnid);
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if (!bRes)
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{
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hr = E_FAIL;
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DBG_ERR(("Failed to modify taskbar icon, hr = 0x%08lx",
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hr));
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}
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}
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if (hIconHandle)
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{
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// destroy the icon
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DestroyIcon(hIconHandle);
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}
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return hr;
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}
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//////////////////////////////////////////////////////////////////////
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// DeleteTaskBarIcon
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//
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// Desc: Deletes a taskbar icon
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//
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//
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// Params: - hwnd, handle of main window.
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// - uiID, id of icon.
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//
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static HRESULT DeleteTaskBarIcon(HWND hwnd)
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{
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HRESULT hr = S_OK;
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BOOL bRes = TRUE;
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NOTIFYICONDATA tnid = {0};
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HICON hIconHandle = NULL;
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if (SUCCEEDED(hr))
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{
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tnid.cbSize = sizeof(NOTIFYICONDATA);
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tnid.hWnd = hwnd;
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tnid.uID = MSPRJCTR_TASKBAR_ID;
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bRes = Shell_NotifyIcon(NIM_DELETE, &tnid);
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// this is not such a big deal.
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if (!bRes)
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{
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hr = E_FAIL;
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}
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}
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return hr;
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}
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