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Last updated: Tue, 21 Dec 2004

CXXIV. W32api関数

導入

この拡張モジュールは、DLLへの一般的な拡張APIです。この拡張モジュー ルはもともとPHPからWin32 APIにアクセスできるようにするために作 成されましたが、他のDLLによりエクスポートされている他の関数にもア クセスすることができます。

現在、サポートされている型は一般のPHP型(文字列, boolean, float, 整数, NULL)とw32api_deftype()で定義した型です。

警告

このモジュールは、 実験的なものです。これは、これらの関数の動作、関 数名は、このドキュメントに書かれて事項と同様に告知なく将来的なPHPのリ リースで変更される可能性があります。注意を喚起するとともに、このモジュー ルは使用者のリスクで使用して下さい。

要件

この拡張モジュールはWindowsシステムでのみ動作します。

インストール手順

これらの関数はPHPコアに含まれるため、使用す る際にインストールは不要です。

実行用の設定

この拡張モジュールは設定ディレクティブを全く定義しません。

リソース型

この拡張モジュールは、1種類のリソース型を定義し、ユーザ定義型で使 用されます。このリソースの名前は、"dynaparm"で す。

定義済みの定数

これらの定数は、この拡張モジュールで定義されており、 この拡張モジュールがPHP内部にコンパイルされているか実行時に動的にロー ドされるかのどちらかの場合のみ使用可能です。

DC_MICROSOFT (integer)

DC_BORLAND (integer)

DC_CALL_CDECL (integer)

DC_CALL_STD (integer)

DC_RETVAL_MATH4 (integer)

DC_RETVAL_MATH8 (integer)

DC_CALL_STD_BO (integer)

DC_CALL_STD_MS (integer)

DC_CALL_STD_M8 (integer)

DC_FLAG_ARGPTR (integer)

以下の例は、システムの実行時間を取得し、メッセージボックスに表示 するものです。

例 1. uptimeを取得し、メッセージボックスに表示する

<?php
// Define constants needed, taken from
// Visual Studio/Tools/Winapi/WIN32API.txt
define("MB_OK", 0);

// Load the extension in
dl("php_w32api.dll");

// Register the GetTickCount function from kernel32.dll
w32api_register_function("kernel32.dll",
                        
"GetTickCount",
                        
"long");
                        
// Register the MessageBoxA function from User32.dll
w32api_register_function("User32.dll",
                        
"MessageBoxA",
                        
"long");

// Get uptime information
$ticks = GetTickCount();

// Convert it to a nicely displayable text
$secs  = floor($ticks / 1000);
$mins  = floor($secs / 60);
$hours = floor($mins / 60);

$str = sprintf("You have been using your computer for:".
              
"\r\n %d Milliseconds, or \r\n %d Seconds".
              
"or \r\n %d mins or\r\n %d hours %d mins.",
              
$ticks,
              
$secs,
              
$mins,
              
$hours,
              
$mins - ($hours*60));

// Display a message box with only an OK button and the uptime text
MessageBoxA(NULL,
          
$str,
          
"Uptime Information",
          
MB_OK);
?>
目次
w32api_deftype -- 他のw32api_functionsで使用するために型を定義する
w32api_init_dtype --  データ型typenameのインスタンスを作成し、val1, val2, 関数の値で埋 める
w32api_invoke_function --  関数名の後ろで指定された引数を指定して関数funcnameを実行する
w32api_register_function --  PHPを保持するライブラリから関数function_nameを登録する
w32api_set_call_method -- カレントメソッドの使用値を設定する


add a note add a note User Contributed Notes
W32api関数
MagicalTux at FF dot st
16-Feb-2005 04:10
Answer to the note posted by me at nullflux dot com (see below)

The Win32 API *does* work in other versions of PHP than between 4.2.0 and 4.2.3. However the documented functions are not available. You will have to use the "win32" class to access functions. For an example, read Philip Soeberg's post just below.
Sami Fouad
23-Nov-2004 11:37
Here is a new link for the official page for the Windows API @ Microsoft's site:

serdar_soydemir at hotmail dot com
30-May-2004 05:34
It seems that this extension will be replaced by FFI extension in PHP5. FFI stands for "Foreign Function Interface" and it's not limited by Windows API, but also supports Linux APIs. You may reach this extension's website at . For Windows, you may try this code from commandline php.exe:

<?php
dl
("php_ffi.dll");

$windows = new ffi ("[lib='user32.dll'] int MessageBoxA( int handle, char *text, char *caption, int type );" );

echo
$windows->MessageBoxA(0, "Message For You", "Hello World", 1);
?>
chris at ramsoft dot biz
18-May-2004 06:46
The win32 support appears to be pretty flaky in php. This of course is to be expected with an experimental extension. That being said, if you are having trouble using the win32 functionality you may want to look into creating a PHP extension instead.

We were having some problems interfacing PHP with a 3rd party dll. As such we created an extension which wraps the interface with the aforementioned dll. The solution was surprisingly quick and painless.
Because we use Delphi primarily we found the following extremely useful and easy to use.

more info here:
me at nullflux dot com
20-Apr-2004 11:27
The w32api extension -does not- work on versions of php that are not between 4.2.0 and 4.2.3. This is mentioned on the individual function's manual pages, but not on the extension's main page. Perhaps I'm just missing something, but if you want to interact with the Win32 API via PHP you have to use an outdated version, or just not bother with it at all.
Philip Soeberg
20-Jan-2004 04:09
In response to post by Jan Kleinsorge.

To get the proper windows system uptime, one should use the Performance Monitoring system... GetTickCount is limited to 49.7 days, as the result is a dword.

<?php
if (!dl("php_w32api.dll")) {
  echo
"Unable to load php_w32api.dll";
  exit;
}

$api = new win32;
$api->registerfunction("bool QueryPerformanceCounter (float &lpPerformanceCount) From kernel32.dll");
$api->registerfunction("bool QueryPerformanceFrequency (float &lpPerformanceFrequency) From kernel32.dll");

$api->QueryPerformanceCounter($a);
$api->QueryPerformanceFrequency($b);
$c = $a/$b;
$days = floor($c / 86400);
echo
gmstrftime("System uptime is $days Days, %H Hr, %M Min, %S Sec<br>", $c);
?>

The above snippet will return the true uptime for an unlimited time for a windows OS. (Disregarding the fact that windows needs reboot every 10 days or so :))
A tiny dange though is the lack of 64bit variable types in php.. (the "float &lpPerformanceCount" should be "long long &lpPerformanceCount") .. Nevertheless.. It works :)

Philip S.
Jan Kleinsorge
03-Jan-2004 01:55
Or google for "win32.hlp". Almost every API-function is listed in there.
Sami Fouad
13-Dec-2003 05:33
contains functions for use with this extension.

Beware! The menu system is very dense, and confusing at first if you don't know where your going.

Luckily for you I am going to add how to get there in this note. ;)

Windows Development > Development Guides > Windows API > Windows API Reference

Enjoy.
23-Aug-2003 08:42
The small, unofficial documentation is now available here .
The old link from the post above is dead.

Note that the W32API doesn't seem to be under development anymore. E-Mails to the author stayed unanswered.
If you really have to use it, just some hints here: There are often problems concerning Apache webservers. This extension doesn't seem to work with mod_php.
I used the API on IIS5 with PHP as CGI. Additionally the IUSR_<hostname> (that's the user IIS runs php.exe by default) might need additional rights to be able to call certain API-functions.
silver_dragoon77 at hotmail dot com
27-Jun-2003 07:03
hi

for phpgtk users, who might want to add some sound to their apps, here is the code, assuming ding.wav is in the script's directory

$api = new win32;
$api->registerfunction("long sndPlaySound (string a, int b) From winmm.dll");
$api->sndPlaySound("ding.wav", 0);

you can use the big win32.hlp file containing the win32 api reference to get some other multimedia functions

regards
wobble at gmx dot de
31-Mar-2003 09:09
I played a bit around with the W32API. Here is some code that actually works with the current release of W32API.
The interface changed completely, so all documentation about this extension is out-dated. While the old release
just implemented "plain" functions, the current version offers a class to handle all the API-related operations.
Additionally, functions are now registered using a SQL-like language with a single string.

<?php

$api
= new win32;

/*
     BOOL GetUserName(
       LPTSTR lpBuffer,    // address of name buffer
       LPDWORD nSize      // address of size of name buffer
     );
   Returns the current thread's username
   "&" passes argument as "refrence" not as "copy"
*/
$api->registerfunction("long GetUserName (string &a, int &b) From advapi32.dll");

/*
   DWORD GetTickCount(VOID)
   Returns the ms the OS is running
*/
$api->registerfunction("long GetTickCount () From Kernel32.dll");

$len = 255;                  // set the length your variable should have
$name = str_repeat("\0", $len); // prepare an empty string
if ($api->GetUserName($name, $len) == 0)
{
   die(
"failed");
}

if (!(
$time = $api->GetTickCount()))
{
   die(
"failed");
}

echo
"Username: $name<br>\nSystemtime: $time<br>\n";

?>

GOOD LUCK !!

Jan Kleinsorge
arunasphp at anm dot org
06-Aug-2002 08:32
In order to use most (perhaps all?) of the win32 API while running with a web server you have to give the server service permission to interact with the desktop.  This is especially noticeable with the given example, where the script will try to display message boxes on the server's display.

Keep in mind, however, that you should think hard about the consequences of letting a web server interact with your desktop, especially if you're not the only one using the web server.

<vpopmail_set_user_quotaw32api_deftype>
 Last updated: Tue, 21 Dec 2004
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