使用資源

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06/13/2023

本節包含下列工作的程式碼片段：

更新資源
建立資源清單

更新資源

下列範例會遵循下列步驟，將對話方塊資源從一個可執行檔Hand.exe複製到另一個可執行檔Foot.exe：

使用 LoadLibrary 函式載入可執行檔Hand.exe。
使用 FindResource 和 LoadResource 函式來尋找並載入對話方塊資源。
使用 LockResource 函式來擷取對話方塊資源資料的指標。
使用 BeginUpdateResource 函式開啟更新控制碼以Foot.exe。
使用 UpdateResource 函式，將對話方塊資源從 Hand.exe 複製到Foot.exe。
使用 EndUpdateResource 函式來完成更新。

下列程式碼會實作這些步驟。

安全性警告： 不正確地使用 LoadLibrary 可能會藉由載入錯誤的 DLL 來危害應用程式的安全性。如需如何使用不同 Windows 版本正確載入 DLL 的資訊，請參閱 LoadLibrary 檔。

HGLOBAL hResLoad;   // handle to loaded resource
HMODULE hExe;       // handle to existing .EXE file
HRSRC hRes;         // handle/ptr. to res. info. in hExe
HANDLE hUpdateRes;  // update resource handle
LPVOID lpResLock;   // pointer to resource data
BOOL result;
#define IDD_HAND_ABOUTBOX   103
#define IDD_FOOT_ABOUTBOX   110

// Load the .EXE file that contains the dialog box you want to copy.
hExe = LoadLibrary(TEXT("hand.exe"));
if (hExe == NULL)
{
    ErrorHandler(TEXT("Could not load exe."));
    return;
}

// Locate the dialog box resource in the .EXE file.
hRes = FindResource(hExe, MAKEINTRESOURCE(IDD_HAND_ABOUTBOX), RT_DIALOG);
if (hRes == NULL)
{
    ErrorHandler(TEXT("Could not locate dialog box."));
    return;
}

// Load the dialog box into global memory.
hResLoad = LoadResource(hExe, hRes);
if (hResLoad == NULL)
{
    ErrorHandler(TEXT("Could not load dialog box."));
    return;
}

// Lock the dialog box into global memory.
lpResLock = LockResource(hResLoad);
if (lpResLock == NULL)
{
    ErrorHandler(TEXT("Could not lock dialog box."));
    return;
}

// Open the file to which you want to add the dialog box resource.
hUpdateRes = BeginUpdateResource(TEXT("foot.exe"), FALSE);
if (hUpdateRes == NULL)
{
    ErrorHandler(TEXT("Could not open file for writing."));
    return;
}

// Add the dialog box resource to the update list.
result = UpdateResource(hUpdateRes,    // update resource handle
    RT_DIALOG,                         // change dialog box resource
    MAKEINTRESOURCE(IDD_FOOT_ABOUTBOX),         // dialog box id
    MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL),  // neutral language
    lpResLock,                         // ptr to resource info
    SizeofResource(hExe, hRes));       // size of resource info

if (result == FALSE)
{
    ErrorHandler(TEXT("Could not add resource."));
    return;
}

// Write changes to FOOT.EXE and then close it.
if (!EndUpdateResource(hUpdateRes, FALSE))
{
    ErrorHandler(TEXT("Could not write changes to file."));
    return;
}

// Clean up.
if (!FreeLibrary(hExe))
{
    ErrorHandler(TEXT("Could not free executable."));
    return;
}

建立資源清單

下列範例會建立Hand.exe檔案中每個資源的清單。清單會寫入Resinfo.txt檔案。

此程式碼示範如何載入可執行檔、建立用來寫入資源資訊的檔案，以及呼叫 EnumResourceTypes 函式，將模組中找到的每個資源類型傳送至應用程式定義的回呼函式 EnumTypesFunc 。如需此類型回呼函式的相關資訊，請參閱 EnumResTypeProc 。此回呼函式會使用 EnumResourceNames 函式，將指定類型內每個資源的名稱傳遞至另一個應用程式定義的回呼函式 EnumNamesFunc 。如需此類型之回呼函式的資訊，請參閱 EnumResNameProc 。 EnumNamesFunc 會使用 EnumResourceLanguages 函式，將指定類型和名稱之每個資源的語言傳遞至第三個回呼函式 EnumLangsFunc 。如需此類型回呼函式的相關資訊，請參閱 EnumResLangProc 。 EnumLangsFunc 會將指定之類型、名稱和語言的資源相關資訊寫入Resinfo.txt檔案。

請注意，EnumResTypeProc中的lpszType是資源識別碼或字串指標， (包含資源識別碼或類型名稱) ;EnumResNameProc和EnumResLangProc中的lpszType和lpszName類似。若要載入列舉的資源，只要呼叫適當的函式即可。例如，如果列舉功能表資源 (RT_MENU) ，則將 lpszName 傳遞至 LoadMenu。針對自訂資源，將 lpszType 和 lpszName 傳遞至 FindResource。

更新資源程式碼會遵循對話方塊資源的類似模式。

HANDLE g_hFile;   // global handle to resource info file
// Declare callback functions.
BOOL EnumTypesFunc(
       HMODULE hModule,
       LPTSTR lpType,
       LONG lParam);
   
BOOL EnumNamesFunc(
       HMODULE hModule,
       LPCTSTR lpType,
       LPTSTR lpName,
       LONG lParam);
   
BOOL EnumLangsFunc(
       HMODULE hModule,
       LPCTSTR lpType,
       LPCTSTR lpName,
       WORD wLang,
       LONG lParam);

HMODULE hExe;        // handle to .EXE file
TCHAR szBuffer[80];  // print buffer for info file
DWORD cbWritten;     // number of bytes written to resource info file
size_t cbString;     // length of string in szBuffer
HRESULT hResult;

// Load the .EXE whose resources you want to list.
hExe = LoadLibrary(TEXT("hand.exe"));
if (hExe == NULL)
{
    // Add code to fail as securely as possible.
    return;
}

// Create a file to contain the resource info.
g_hFile = CreateFile(TEXT("resinfo.txt"),   // name of file
    GENERIC_READ | GENERIC_WRITE,      // access mode
    0,                                 // share mode
    (LPSECURITY_ATTRIBUTES) NULL,      // default security
    CREATE_ALWAYS,                     // create flags
    FILE_ATTRIBUTE_NORMAL,             // file attributes
    (HANDLE) NULL);                    // no template
if (g_hFile == INVALID_HANDLE_VALUE)
{
    ErrorHandler(TEXT("Could not open file."));
    return;
}

// Find all of the loaded file's resources.
hResult = StringCchPrintf(szBuffer, sizeof(szBuffer)/sizeof(TCHAR),
    TEXT("The file contains the following resources:\r\n\r\n"));
if (FAILED(hResult))
{
    // Add code to fail as securely as possible.
    return;
}

hResult = StringCchLength(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), &cbString);
if (FAILED(hResult))
{
    // Add code to fail as securely as possible.
    return;
}

WriteFile(g_hFile,       // file to hold resource info
    szBuffer,            // what to write to the file
    (DWORD) cbString,    // number of bytes in szBuffer
    &cbWritten,          // number of bytes written
    NULL);               // no overlapped I/O

EnumResourceTypes(hExe,              // module handle
    (ENUMRESTYPEPROC)EnumTypesFunc,  // callback function
    0);                              // extra parameter

// Unload the executable file whose resources were
// enumerated and close the file created to contain
// the resource information.
FreeLibrary(hExe);
CloseHandle(g_hFile);

//    FUNCTION: EnumTypesFunc(HANDLE, LPSTR, LONG)
//
//    PURPOSE:  Resource type callback
BOOL EnumTypesFunc(
        HMODULE hModule,  // module handle
        LPTSTR lpType,    // address of resource type
        LONG lParam)      // extra parameter, could be
                          // used for error checking
{
    TCHAR szBuffer[80];  // print buffer for info file
    DWORD cbWritten;     // number of bytes written to resource info file
    size_t cbString;
    HRESULT hResult;

    // Write the resource type to a resource information file.
    // The type may be a string or an unsigned decimal
    // integer, so test before printing.
    if (!IS_INTRESOURCE(lpType))
    {
        hResult = StringCchPrintf(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), TEXT("Type: %s\r\n"), lpType);
        if (FAILED(hResult))
        {
            // Add code to fail as securely as possible.
            return FALSE;
        }
    }
    else
    {
        hResult = StringCchPrintf(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), TEXT("Type: %u\r\n"), (USHORT)lpType);
        if (FAILED(hResult))
        {
            // Add code to fail as securely as possible.
            return FALSE;
        }
    }

    hResult = StringCchLength(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), &cbString);
    if (FAILED(hResult))
    {
        // Add code to fail as securely as possible.
        return FALSE;
    }

    WriteFile(g_hFile, szBuffer, (DWORD) cbString, &cbWritten, NULL);
    // Find the names of all resources of type lpType.
    EnumResourceNames(hModule,
        lpType,
        (ENUMRESNAMEPROC)EnumNamesFunc,
        0);

    return TRUE;
}

//    FUNCTION: EnumNamesFunc(HANDLE, LPSTR, LPSTR, LONG)
//
//    PURPOSE:  Resource name callback
BOOL EnumNamesFunc(
        HMODULE hModule,  // module handle
        LPCTSTR lpType,   // address of resource type
        LPTSTR lpName,    // address of resource name
        LONG lParam)      // extra parameter, could be
                          // used for error checking
{
    TCHAR szBuffer[80];  // print buffer for info file
    DWORD cbWritten;     // number of bytes written to resource info file
    size_t cbString;
    HRESULT hResult;

    // Write the resource name to a resource information file.
    // The name may be a string or an unsigned decimal
    // integer, so test before printing.
    if (!IS_INTRESOURCE(lpName))
    {
        hResult = StringCchPrintf(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), TEXT("\tName: %s\r\n"), lpName);
        if (FAILED(hResult))
        {
            // Add code to fail as securely as possible.
            return FALSE;
        }
    }
    else
    {
        hResult = StringCchPrintf(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), TEXT("\tName: %u\r\n"), (USHORT)lpName);
        if (FAILED(hResult))
        {
            // Add code to fail as securely as possible.
            return FALSE;
        }
    }

    hResult = StringCchLength(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), &cbString);
    if (FAILED(hResult))
    {
        // Add code to fail as securely as possible.
        return FALSE;
    }
   
    WriteFile(g_hFile, szBuffer, (DWORD) cbString, &cbWritten, NULL);
    // Find the languages of all resources of type
    // lpType and name lpName.
    EnumResourceLanguages(hModule,
        lpType,
        lpName,
        (ENUMRESLANGPROC)EnumLangsFunc,
        0);

    return TRUE;
}

//    FUNCTION: EnumLangsFunc(HANDLE, LPSTR, LPSTR, WORD, LONG)
//
//    PURPOSE:  Resource language callback
BOOL EnumLangsFunc(
        HMODULE hModule, // module handle
        LPCTSTR lpType,  // address of resource type
        LPCTSTR lpName,  // address of resource name
        WORD wLang,      // resource language
        LONG lParam)     // extra parameter, could be
                         // used for error checking
{
    HRSRC hResInfo;
    TCHAR szBuffer[80];  // print buffer for info file
    DWORD cbWritten;     // number of bytes written to resource info file
    size_t cbString;
    HRESULT hResult;

    hResInfo = FindResourceEx(hModule, lpType, lpName, wLang);
    // Write the resource language to the resource information file.
    hResult = StringCchPrintf(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), TEXT("\t\tLanguage: %u\r\n"), (USHORT) wLang);
    if (FAILED(hResult))
    {
        // Add code to fail as securely as possible.
        return FALSE;
    }

    hResult = StringCchLength(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), &cbString);
    if (FAILED(hResult))
    {
        // Add code to fail as securely as possible.
        return FALSE;
    }

    WriteFile(g_hFile, szBuffer, (DWORD) cbString, &cbWritten, NULL); 
    // Write the resource handle and size to buffer.
    hResult = StringCchPrintf(szBuffer,
        sizeof(szBuffer)/sizeof(TCHAR),
        TEXT("\t\thResInfo == %lx,  Size == %lu\r\n\r\n"),
        hResInfo,
        SizeofResource(hModule, hResInfo));
    if (FAILED(hResult))
    {
        // Add code to fail as securely as possible.
        return FALSE;
    }

    hResult = StringCchLength(szBuffer, sizeof(szBuffer)/sizeof(TCHAR), &cbString);
    if (FAILED(hResult))
    {
        // Add code to fail as securely as possible.
        return FALSE;
    }

    WriteFile(g_hFile, szBuffer, (DWORD)cbString, &cbWritten, NULL);
    return TRUE;
}

共用方式為

使用資源

更新資源

建立資源清單

意見反應

其他資源