LGram16
e067522598
Game client codebase including: - CharacterActionControl: Character and creature management - GlobalScript: Network, items, skills, quests, utilities - RYLClient: Main client application with GUI and event handlers - Engine: 3D rendering engine (RYLGL) - MemoryManager: Custom memory allocation - Library: Third-party dependencies (DirectX, boost, etc.) - Tools: Development utilities 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
655 lines
17 KiB
C++
655 lines
17 KiB
C++
//------------------------------------------------------------------------------
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// File: SysEnumDlg.cpp
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//
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// Desc: DirectShow sample code - implementation of dialog for device
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// enumeration.
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//
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// Copyright (c) 2000-2001 Microsoft Corporation. All rights reserved.
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//------------------------------------------------------------------------------
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#include "stdafx.h"
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#include <atlbase.h>
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#include "SysEnum.h"
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#include "SysEnumDlg.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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/////////////////////////////////////////////////////////////////////////////
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// CAboutDlg dialog used for App About
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class CAboutDlg : public CDialog
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{
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public:
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CAboutDlg();
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// Dialog Data
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//{{AFX_DATA(CAboutDlg)
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enum { IDD = IDD_ABOUTBOX };
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//}}AFX_DATA
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// ClassWizard generated virtual function overrides
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//{{AFX_VIRTUAL(CAboutDlg)
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protected:
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virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
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//}}AFX_VIRTUAL
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// Implementation
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protected:
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//{{AFX_MSG(CAboutDlg)
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//}}AFX_MSG
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DECLARE_MESSAGE_MAP()
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};
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CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
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{
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//{{AFX_DATA_INIT(CAboutDlg)
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//}}AFX_DATA_INIT
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}
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void CAboutDlg::DoDataExchange(CDataExchange* pDX)
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{
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CDialog::DoDataExchange(pDX);
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//{{AFX_DATA_MAP(CAboutDlg)
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//}}AFX_DATA_MAP
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}
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BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
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//{{AFX_MSG_MAP(CAboutDlg)
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// No message handlers
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//}}AFX_MSG_MAP
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END_MESSAGE_MAP()
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/////////////////////////////////////////////////////////////////////////////
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// CSysEnumDlg dialog
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CSysEnumDlg::CSysEnumDlg(CWnd* pParent /*=NULL*/)
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: CDialog(CSysEnumDlg::IDD, pParent)
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{
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//{{AFX_DATA_INIT(CSysEnumDlg)
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m_bShowAllCategories = FALSE;
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//}}AFX_DATA_INIT
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// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
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m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
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}
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void CSysEnumDlg::DoDataExchange(CDataExchange* pDX)
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{
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CDialog::DoDataExchange(pDX);
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//{{AFX_DATA_MAP(CSysEnumDlg)
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DDX_Control(pDX, IDC_STATIC_FILENAME, m_StrFilename);
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DDX_Control(pDX, IDC_STATIC_FILTERS, m_StrFilters);
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DDX_Control(pDX, IDC_STATIC_CLASSES, m_StrClasses);
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DDX_Control(pDX, IDC_LIST_FILTERS, m_FilterList);
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DDX_Control(pDX, IDC_LIST_DEVICES, m_DeviceList);
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DDX_Check(pDX, IDC_CHECK_SHOWALL, m_bShowAllCategories);
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//}}AFX_DATA_MAP
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}
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BEGIN_MESSAGE_MAP(CSysEnumDlg, CDialog)
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//{{AFX_MSG_MAP(CSysEnumDlg)
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ON_WM_SYSCOMMAND()
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ON_WM_PAINT()
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ON_WM_QUERYDRAGICON()
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ON_LBN_SELCHANGE(IDC_LIST_DEVICES, OnSelchangeListDevices)
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ON_WM_CLOSE()
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ON_BN_CLICKED(IDC_CHECK_SHOWALL, OnCheckShowall)
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ON_LBN_SELCHANGE(IDC_LIST_FILTERS, OnSelchangeListFilters)
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//}}AFX_MSG_MAP
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END_MESSAGE_MAP()
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/////////////////////////////////////////////////////////////////////////////
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// CSysEnumDlg message handlers
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void CSysEnumDlg::OnSysCommand(UINT nID, LPARAM lParam)
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{
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if ((nID & 0xFFF0) == IDM_ABOUTBOX)
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{
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CAboutDlg dlgAbout;
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dlgAbout.DoModal();
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}
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else
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{
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CDialog::OnSysCommand(nID, lParam);
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}
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}
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// If you add a minimize button to your dialog, you will need the code below
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// to draw the icon. For MFC applications using the document/view model,
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// this is automatically done for you by the framework.
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void CSysEnumDlg::OnPaint()
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{
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if (IsIconic())
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{
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CPaintDC dc(this); // device context for painting
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SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
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// Center icon in client rectangle
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int cxIcon = GetSystemMetrics(SM_CXICON);
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int cyIcon = GetSystemMetrics(SM_CYICON);
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CRect rect;
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GetClientRect(&rect);
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int x = (rect.Width() - cxIcon + 1) / 2;
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int y = (rect.Height() - cyIcon + 1) / 2;
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// Draw the icon
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dc.DrawIcon(x, y, m_hIcon);
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}
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else
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{
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CDialog::OnPaint();
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}
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}
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// The system calls this to obtain the cursor to display while the user drags
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// the minimized window.
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HCURSOR CSysEnumDlg::OnQueryDragIcon()
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{
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return (HCURSOR) m_hIcon;
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}
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BOOL CSysEnumDlg::OnInitDialog()
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{
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HRESULT hr;
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CDialog::OnInitDialog();
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// Add "About..." menu item to system menu.
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// IDM_ABOUTBOX must be in the system command range.
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ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
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ASSERT(IDM_ABOUTBOX < 0xF000);
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CMenu* pSysMenu = GetSystemMenu(FALSE);
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if (pSysMenu != NULL)
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{
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CString strAboutMenu;
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strAboutMenu.LoadString(IDS_ABOUTBOX);
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if (!strAboutMenu.IsEmpty())
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{
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pSysMenu->AppendMenu(MF_SEPARATOR);
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pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
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}
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}
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// Set the icon for this dialog. The framework does this automatically
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// when the application's main window is not a dialog
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SetIcon(m_hIcon, TRUE); // Set big icon
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SetIcon(m_hIcon, FALSE); // Set small icon
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////////////////////////////////////////////////////////////////////////
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//
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// DirectShow-specific initialization code
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CoInitialize(NULL);
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// Instantiate the system device enumerator
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m_pSysDevEnum = NULL;
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hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL,
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CLSCTX_INPROC, IID_ICreateDevEnum,
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(void **)&m_pSysDevEnum);
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if FAILED(hr)
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{
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CoUninitialize();
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return FALSE;
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}
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// By default, only enumerate subset of categories listed in docs
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m_bShowAllCategories = FALSE;
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FillCategoryList();
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return TRUE; // return TRUE unless you set the focus to a control
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}
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void CSysEnumDlg::OnCheckShowall()
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{
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// Toggle category type and redraw the category list
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m_bShowAllCategories ^= 1;
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FillCategoryList();
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SetNumFilters(0);
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}
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void CSysEnumDlg::FillCategoryList(void)
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{
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// Clear listboxes
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ClearDeviceList();
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ClearFilterList();
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if (m_bShowAllCategories)
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{
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// Emulate the behavior of GraphEdit by enumerating all
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// categories in the system
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DisplayFullCategorySet();
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}
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else
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{
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// Fill the category list box with the categories to display,
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// using the names stored in the CATEGORY_INFO array.
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// SysEnumDlg.H for a category description.
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for (int i=0; i < NUM_CATEGORIES; i++)
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{
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m_DeviceList.AddString(categories[i].szName);
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}
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// Update listbox title with number of classes
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SetNumClasses(NUM_CATEGORIES);
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}
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}
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void CSysEnumDlg::SetNumClasses(int nClasses)
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{
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TCHAR szClasses[64];
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wsprintf(szClasses, TEXT("%s (%d found)\0"), STR_CLASSES, nClasses);
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m_StrClasses.SetWindowText(szClasses);
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}
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void CSysEnumDlg::SetNumFilters(int nFilters)
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{
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TCHAR szFilters[64];
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if (nFilters)
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wsprintf(szFilters, TEXT("%s (%d found)\0"), STR_FILTERS, nFilters);
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else
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wsprintf(szFilters, TEXT("%s\0"), STR_FILTERS);
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m_StrFilters.SetWindowText(szFilters);
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}
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void CSysEnumDlg::DisplayFullCategorySet(void)
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{
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USES_CONVERSION;
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HRESULT hr;
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IEnumMoniker *pEmCat = 0;
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ICreateDevEnum *pCreateDevEnum = NULL;
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int nClasses=0;
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// Create an enumerator
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hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
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IID_ICreateDevEnum, (void**)&pCreateDevEnum);
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ASSERT(SUCCEEDED(hr));
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if (FAILED(hr))
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return;
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// Use the meta-category that contains a list of all categories.
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// This emulates the behavior of GraphEdit.
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hr = pCreateDevEnum->CreateClassEnumerator(
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CLSID_ActiveMovieCategories, &pEmCat, 0);
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ASSERT(SUCCEEDED(hr));
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if(hr == S_OK)
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{
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IMoniker *pMCat;
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ULONG cFetched;
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// Enumerate over every category
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while(hr = pEmCat->Next(1, &pMCat, &cFetched),
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hr == S_OK)
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{
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IPropertyBag *pPropBag;
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// Associate moniker with a file
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hr = pMCat->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pPropBag);
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if(SUCCEEDED(hr))
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{
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VARIANT varCatClsid;
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varCatClsid.vt = VT_BSTR;
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// Read CLSID string from property bag
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hr = pPropBag->Read(L"CLSID", &varCatClsid, 0);
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if(SUCCEEDED(hr))
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{
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CLSID clsidCat;
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if(CLSIDFromString(varCatClsid.bstrVal, &clsidCat) == S_OK)
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{
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// Use the guid if we can't get the name
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WCHAR *wszCatName;
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TCHAR szCatDesc[MAX_PATH];
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VARIANT varCatName;
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varCatName.vt = VT_BSTR;
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// Read filter name
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hr = pPropBag->Read(L"FriendlyName", &varCatName, 0);
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if(SUCCEEDED(hr))
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wszCatName = varCatName.bstrVal;
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else
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wszCatName = varCatClsid.bstrVal;
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#ifndef UNICODE
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WideCharToMultiByte(
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CP_ACP, 0, wszCatName, -1,
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szCatDesc, sizeof(szCatDesc), 0, 0);
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#else
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lstrcpy(szCatDesc, W2T(wszCatName));
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#endif
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if(SUCCEEDED(hr))
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SysFreeString(varCatName.bstrVal);
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// Add category name and CLSID to list box
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AddFilterCategory(szCatDesc, &clsidCat);
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nClasses++;
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}
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SysFreeString(varCatClsid.bstrVal);
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}
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pPropBag->Release();
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}
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else
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{
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break;
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}
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pMCat->Release();
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} // for loop
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pEmCat->Release();
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}
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pCreateDevEnum->Release();
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// Update listbox title with number of classes
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SetNumClasses(nClasses);
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}
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void CSysEnumDlg::AddFilterCategory(
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const TCHAR *szCatDesc,
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const GUID *pCatGuid)
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{
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// Allocate a new CLSID, whose pointer will be stored in
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// the listbox. When the listbox is cleared, these will be deleted.
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CLSID *pclsid = new CLSID;
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if (pclsid)
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*pclsid = *pCatGuid;
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// Add the category name and a pointer to its CLSID to the list box
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int nSuccess = m_DeviceList.AddString(szCatDesc);
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int nIndexNew = m_DeviceList.FindStringExact(-1, szCatDesc);
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nSuccess = m_DeviceList.SetItemDataPtr(nIndexNew, pclsid);
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}
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void CSysEnumDlg::AddFilter(
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const TCHAR *szFilterName,
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const GUID *pCatGuid)
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{
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// Allocate a new CLSID, whose pointer will be stored in
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// the listbox. When the listbox is cleared, these will be deleted.
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CLSID *pclsid = new CLSID;
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if (pclsid)
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*pclsid = *pCatGuid;
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// Add the category name and a pointer to its CLSID to the list box
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int nSuccess = m_FilterList.AddString(szFilterName);
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int nIndexNew = m_FilterList.FindStringExact(-1, szFilterName);
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nSuccess = m_FilterList.SetItemDataPtr(nIndexNew, pclsid);
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}
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void CSysEnumDlg::ClearDeviceList(void)
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{
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CLSID *pStoredId = NULL;
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int nCount = m_DeviceList.GetCount();
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// Delete any CLSID pointers that were stored in the listbox item data
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for (int i=0; i < nCount; i++)
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{
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pStoredId = (CLSID *) m_DeviceList.GetItemDataPtr(i);
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if (pStoredId != 0)
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{
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delete pStoredId;
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pStoredId = NULL;
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}
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}
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// Clean up
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m_DeviceList.ResetContent();
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SetNumClasses(0);
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}
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void CSysEnumDlg::ClearFilterList(void)
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{
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CLSID *pStoredId = NULL;
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int nCount = m_FilterList.GetCount();
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// Delete any CLSID pointers that were stored in the listbox item data
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for (int i=0; i < nCount; i++)
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{
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pStoredId = (CLSID *) m_FilterList.GetItemDataPtr(i);
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if (pStoredId != 0)
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{
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delete pStoredId;
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pStoredId = NULL;
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}
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}
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// Clean up
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m_FilterList.ResetContent();
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SetNumFilters(0);
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m_StrFilename.SetWindowText(TEXT("<No filter selected>"));
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}
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void CSysEnumDlg::OnSelchangeListDevices()
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{
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HRESULT hr;
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IEnumMoniker *pEnumCat = NULL;
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// Get the currently selected category name
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int nItem = m_DeviceList.GetCurSel();
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const CLSID *clsid;
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if (m_bShowAllCategories)
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{
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// Read the CLSID pointer from the list box's item data
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clsid = (CLSID *) m_DeviceList.GetItemDataPtr(nItem);
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}
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else
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{
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// Read the CLSID pointer from our hard-coded array of
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// documented filter categories
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clsid = categories[nItem].pclsid;
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}
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// If the CLSID wasn't allocated earlier, then fail
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if (!clsid)
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{
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MessageBeep(0);
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return;
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}
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//
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// WARNING!
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//
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// Some third-party filters throw an exception (int 3) during enumeration
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// on Debug builds, often due to heap corruption in RtlFreeHeap().
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// This is not an issue on Release builds.
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//
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// Enumerate all filters of the selected category
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hr = m_pSysDevEnum->CreateClassEnumerator(*clsid, &pEnumCat, 0);
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ASSERT(SUCCEEDED(hr));
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if FAILED(hr)
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return;
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// Enumerate all filters using the category enumerator
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hr = EnumFilters(pEnumCat);
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SAFE_RELEASE(pEnumCat);
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}
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HRESULT CSysEnumDlg::EnumFilters(IEnumMoniker *pEnumCat)
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{
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HRESULT hr=S_OK;
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IMoniker *pMoniker;
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ULONG cFetched;
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VARIANT varName={0};
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int nFilters=0;
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// Clear the current filter list
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ClearFilterList();
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// If there are no filters of a requested type, show default string
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if (!pEnumCat)
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{
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m_FilterList.AddString(TEXT("<< No entries >>"));
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SetNumFilters(nFilters);
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return S_FALSE;
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}
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// Enumerate all items associated with the moniker
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while(pEnumCat->Next(1, &pMoniker, &cFetched) == S_OK)
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{
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IPropertyBag *pPropBag;
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ASSERT(pMoniker);
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// Associate moniker with a file
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hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
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(void **)&pPropBag);
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ASSERT(SUCCEEDED(hr));
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ASSERT(pPropBag);
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if (FAILED(hr))
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continue;
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// Read filter name from property bag
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varName.vt = VT_BSTR;
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hr = pPropBag->Read(L"FriendlyName", &varName, 0);
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if (FAILED(hr))
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continue;
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// Get filter name (converting BSTR name to a CString)
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CString str(varName.bstrVal);
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SysFreeString(varName.bstrVal);
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nFilters++;
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// Read filter's CLSID from property bag. This CLSID string will be
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// converted to a binary CLSID and passed to AddFilter(), which will
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// add the filter's name to the listbox and its CLSID to the listbox
|
|
// item's DataPtr item. When the user clicks on a filter name in
|
|
// the listbox, we'll read the stored CLSID, convert it to a string,
|
|
// and use it to find the filter's filename in the registry.
|
|
VARIANT varFilterClsid;
|
|
varFilterClsid.vt = VT_BSTR;
|
|
|
|
// Read CLSID string from property bag
|
|
hr = pPropBag->Read(L"CLSID", &varFilterClsid, 0);
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
CLSID clsidFilter;
|
|
|
|
// Add filter name and CLSID to listbox
|
|
if(CLSIDFromString(varFilterClsid.bstrVal, &clsidFilter) == S_OK)
|
|
{
|
|
AddFilter(str, &clsidFilter);
|
|
}
|
|
|
|
SysFreeString(varFilterClsid.bstrVal);
|
|
}
|
|
|
|
// Cleanup interfaces
|
|
SAFE_RELEASE(pPropBag);
|
|
SAFE_RELEASE(pMoniker);
|
|
}
|
|
|
|
// Update count of enumerated filters
|
|
SetNumFilters(nFilters);
|
|
return hr;
|
|
}
|
|
|
|
|
|
void CSysEnumDlg::OnSelchangeListFilters()
|
|
{
|
|
const CLSID *clsid;
|
|
|
|
// Get the currently selected category name
|
|
int nItem = m_FilterList.GetCurSel();
|
|
|
|
// Read the CLSID pointer from the list box's item data
|
|
clsid = (CLSID *) m_FilterList.GetItemDataPtr(nItem);
|
|
|
|
// Find the filter filename in the registry (by CLSID)
|
|
if (clsid != 0)
|
|
ShowFilenameByCLSID(*clsid);
|
|
}
|
|
|
|
|
|
void CSysEnumDlg::ShowFilenameByCLSID(REFCLSID clsid)
|
|
{
|
|
HRESULT hr;
|
|
LPOLESTR strCLSID;
|
|
|
|
// Convert binary CLSID to a readable version
|
|
hr = StringFromCLSID(clsid, &strCLSID);
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
TCHAR szKey[512];
|
|
CString strQuery(strCLSID);
|
|
|
|
// Create key name for reading filename registry
|
|
wsprintf(szKey, TEXT("Software\\Classes\\CLSID\\%s\\InprocServer32\0"),
|
|
strQuery);
|
|
|
|
// Free memory associated with strCLSID (allocated in StringFromCLSID)
|
|
CoTaskMemFree(strCLSID);
|
|
|
|
HKEY hkeyFilter=0;
|
|
DWORD dwSize=MAX_PATH;
|
|
BYTE pbFilename[MAX_PATH];
|
|
int rc=0;
|
|
|
|
// Open the CLSID key that contains information about the filter
|
|
rc = RegOpenKey(HKEY_LOCAL_MACHINE, szKey, &hkeyFilter);
|
|
if (rc == ERROR_SUCCESS)
|
|
{
|
|
rc = RegQueryValueEx(hkeyFilter, NULL, // Read (Default) value
|
|
NULL, NULL, pbFilename, &dwSize);
|
|
|
|
if (rc == ERROR_SUCCESS)
|
|
{
|
|
TCHAR szFilename[MAX_PATH];
|
|
wsprintf(szFilename, TEXT("%s\0"), pbFilename);
|
|
m_StrFilename.SetWindowText(szFilename);
|
|
}
|
|
|
|
rc = RegCloseKey(hkeyFilter);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void CSysEnumDlg::OnClose()
|
|
{
|
|
// Free any stored CLSID pointers (in listbox item data ptr area)
|
|
ClearFilterList();
|
|
ClearDeviceList();
|
|
|
|
// Release system device enumerator and close COM
|
|
SAFE_RELEASE(m_pSysDevEnum);
|
|
CoUninitialize();
|
|
|
|
CDialog::OnClose();
|
|
}
|
|
|
|
|