This is not a real IDL file, just a dummy file that is used to demonstrate generated sources from idl inputs.
This file contains a HEADER section and a SOURCE section, which are parsed to generate the actual header and source files.
The generated files have the same name as the idl file, with the extension replaced by '.h' or '.c'.

HEADER <<<
void hello();
>>>
--------------
SOURCE <<<
#include <stdio.h>
#include "hello.h"

void hello () {

[
	uuid(12345778-1234-abcd-ef00-0123456789ac),
	version(1.0)
]
interface samr
{
	import "../rpc.idl";
	import "lsarpc.idl";

	typedef [v1_enum] enum {
		ACB_DISABLED               = 0x00000001, /* 1 = User account disabled */
		ACB_HOMDIRREQ              = 0x00000002, /* 1 = Home directory required */
		ACB_PWNOTREQ               = 0x00000004, /* 1 = User password not required */

[
	uuid(12345778-1234-abcd-ef00-0123456789ac),
	version(1.0)
]
interface samr
{
	import "../rpc.idl";
	import "lsarpc.idl";

	typedef [v1_enum] enum {
		ACB_DISABLED               = 0x00000001, /* 1 = User account disabled */
		ACB_HOMDIRREQ              = 0x00000002, /* 1 = Home directory required */
		ACB_PWNOTREQ               = 0x00000004, /* 1 = User password not required */

[
	uuid(4fc742e0-4a10-11cf-8273-00aa004ae673),
	version(3.0)
]
interface netdfs
{
	import "../rpc.idl";

	const uint32_t DFS_VOLUME_FLAVOR_STANDALONE = 0x100;
	const uint32_t DFS_VOLUME_FLAVOR_AD_BLOB = 0x200;

	const uint32_t DFS_STORAGE_STATE_OFFLINE = 0x0001;
	const uint32_t DFS_STORAGE_STATE_ONLINE = 0x0002;
	const uint32_t DFS_STORAGE_STATE_ACTIVE = 0x0004;

	typedef struct {
		[string] wchar_t *entry_path;
	} DfsInfo1;

[
	uuid(4b324fc8-1670-01d3-1278-5a47bf6ee188),
	version(3.0)
]
interface srvsvc
{
	import "../rpc.idl";

	typedef struct {
		[string] wchar_t *netname;
	} ShareInfo0;

	typedef struct {
		int count;
		[size_is(count)] ShareInfo0 *array;
	} ShareInfoCtr0;

	typedef struct {
		[string] wchar_t *netname;
		int type;
		[string] wchar_t *remark;
	} ShareInfo1;

	typedef struct {
		int count;

[
	uuid(4b324fc8-1670-01d3-1278-5a47bf6ee188),
	version(3.0)
]
interface srvsvc
{
	import "../rpc.idl";

	typedef struct {
		[string] wchar_t *netname;
	} ShareInfo0;

	typedef struct {
		int count;
		[size_is(count)] ShareInfo0 *array;
	} ShareInfoCtr0;

	typedef struct {
		[string] wchar_t *netname;
		int type;
		[string] wchar_t *remark;
	} ShareInfo1;

	typedef struct {
		int count;

[
	uuid(12345778-1234-abcd-ef00-0123456789ab),
	version(0.0)
]
interface lsarpc
{
	import "../rpc.idl";

	typedef struct {
		uint32_t length;
		uint16_t impersonation_level;
		uint8_t context_mode;
		uint8_t effective_only;
	} LsarQosInfo;

	typedef struct {
		uint32_t length;
		uint8_t *root_directory;
		unicode_string *object_name;
		uint32_t attributes;
		uint32_t security_descriptor;

[
	uuid(12345778-1234-abcd-ef00-0123456789ab),
	version(0.0)
]
interface lsarpc
{
	import "../rpc.idl";

	typedef struct {
		uint32_t length;
		uint16_t impersonation_level;
		uint8_t context_mode;
		uint8_t effective_only;
	} LsarQosInfo;

	typedef struct {
		uint32_t length;
		uint8_t *root_directory;
		unicode_string *object_name;
		uint32_t attributes;
		uint32_t security_descriptor;

[
	uuid(4fc742e0-4a10-11cf-8273-00aa004ae673),
	version(3.0)
]
interface netdfs
{
	import "../rpc.idl";

	const uint32_t DFS_VOLUME_FLAVOR_STANDALONE = 0x100;
	const uint32_t DFS_VOLUME_FLAVOR_AD_BLOB = 0x200;

	const uint32_t DFS_STORAGE_STATE_OFFLINE = 0x0001;
	const uint32_t DFS_STORAGE_STATE_ONLINE = 0x0002;
	const uint32_t DFS_STORAGE_STATE_ACTIVE = 0x0004;

	typedef struct {
		[string] wchar_t *entry_path;
	} DfsInfo1;

    </magic>
    <glob pattern="*.fcs"/>
  </mime-type>
  <mime-type type="application/vnd.adobe.indesign-idml-package">
    <sub-class-of type="application/zip"/>
    <_comment>IDML</_comment>
    <glob pattern="*.idml"/>
  </mime-type>

  <mime-type type="application/x-adobe-indesign-interchange">
    <acronym>INX</acronym>