EnumResourceLanguagesA function (winbase.h)

Article
02/09/2023

Enumerates language-specific resources, of the specified type and name, associated with a binary module.

Syntax

BOOL EnumResourceLanguagesA(
  [in] HMODULE          hModule,
  [in] LPCSTR           lpType,
  [in] LPCSTR           lpName,
  [in] ENUMRESLANGPROCA lpEnumFunc,
  [in] LONG_PTR         lParam
);

Parameters

[in] hModule

Type: HMODULE

The handle to a module to be searched. Starting with Windows Vista, if this is a language-neutral Portable Executable (LN file), then appropriate .mui files (if any exist) are included in the search. If this is a specific .mui file, only that file is searched for resources.

If this parameter is NULL, that is equivalent to passing in a handle to the module used to create the current process.

[in] lpType

Type: LPCTSTR

The type of resource for which the language is being enumerated. Alternately, rather than a pointer, this parameter can be MAKEINTRESOURCE(ID), where ID is an integer value representing a predefined resource type. For a list of predefined resource types, see Resource Types. For more information, see the Remarks section below.

[in] lpName

Type: LPCTSTR

The name of the resource for which the language is being enumerated. Alternately, rather than a pointer, this parameter can be MAKEINTRESOURCE(ID), where ID is the integer identifier of the resource. For more information, see the Remarks section below.

[in] lpEnumFunc

Type: ENUMRESLANGPROC

A pointer to the callback function to be called for each enumerated resource language. For more information, see EnumResLangProcA.

[in] lParam

Type: LONG_PTR

An application-defined value passed to the callback function. This parameter can be used in error checking.

Return value

Type: BOOL

Returns TRUE if successful or FALSE otherwise. To get extended error information, call GetLastError.

Remarks

If IS_INTRESOURCE(lpType) is TRUE, then lpType specifies the integer identifier of the given resource type. Otherwise, it is a pointer to a null-terminated string. If the first character of the string is a pound sign (#), then the remaining characters represent a decimal number that specifies the integer identifier of the resource type. For example, the string "#258" represents the identifier 258.

Similarly, if IS_INTRESOURCE(lpName) is TRUE, then lpName specifies the integer identifier of the given resource. Otherwise, it is a pointer to a null-terminated string. If the first character of the string is a pound sign (#), then the remaining characters represent a decimal number that specifies the integer identifier of the resource.

Starting with Windows Vista, the binary module is typically a language-neutral Portable Executable (LN file), and the enumeration will also include resources from the corresponding language-specific resource files (.mui files) that contain localizable language resources.

For each resource found, EnumResourceLanguages calls an application-defined callback function lpEnumFunc, passing the language identifier (see Language Identifiers) of the language for which a resource was found, as well as the various other parameters that were passed to EnumResourceLanguages.

Alternately, applications can call EnumResourceLanguagesEx, which provides more precise control of what resources are enumerated.

The EnumResourceLanguages function continues to enumerate resource languages until the callback function returns FALSE or all resource languages have been enumerated.

In Windows Vista and later, if hModule specifies an LN file, then the resources enumerated can reside either in the LN file or in an .mui file associated with it. If no .mui files are found, only resources from the LN file are returned. Unlike EnumResourceNames and EnumResourceTypes, this search will look at multiple .mui files. The enumeration begins with .mui files in the folders associated with EnumUILanguages. These are followed by any other .mui files whose paths conform to the scheme described at MUI Resource Management. Finally, the file designated by hModule is also searched.

The enumeration never includes duplicates: if a resource with the same name, type, and language is contained in both the LN file and in an .mui file, the resource will only be enumerated once.

Examples

For an example, see Creating a Resource List.

Note

The winbase.h header defines EnumResourceLanguages as an alias that automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that is not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	winbase.h (include Windows.h)
Library	Kernel32.lib
DLL	Kernel32.dll

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