Open & Close Optical Disk Drive - Revision history

Anders: Reverted edits by 201.65.224.82 to last version by 195.242.186.10

2013-05-15T20:25:20Z

Reverted edits by 201.65.224.82 to last version by 195.242.186.10

â† Older revision		Revision as of 20:25, 15 May 2013
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	</highlight-nsis>		</highlight-nsis>

	~~Hi I am so excited I found your wegpabe~~, ~~I really found you by mistake~~, ~~while I was researching on Google for something else~~, ~~Anyhow I am here now and would just like to say kudos for a fantastic post and a all round interesting blog (I also love the theme/design~~)~~, I don’t have time to browse it all at the minute but I have saved it and also added in your RSS feeds, so when I have time I will be back to read a lot more, Please do keep up the fantastic work~~.		=== Close the Drive ===
			<highlight-nsis>
			System::Call "winmm::mciSendStringA(t 'set cdaudio door close', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"
			</highlight-nsis>

	=== Output and Return ===		=== Output and Return ===

201.65.224.82: /* Close the Drive */

2013-05-15T11:23:18Z

Close the Drive

â† Older revision		Revision as of 11:23, 15 May 2013
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	</highlight-nsis>		</highlight-nsis>

	~~=== Close~~ the ~~Drive ===~~		Hi I am so excited I found your wegpabe, I really found you by mistake, while I was researching on Google for something else, Anyhow I am here now and would just like to say kudos for a fantastic post and a all round interesting blog (I also love the theme/design), I don’t have time to browse it all at the minute but I have saved it and also added in your RSS feeds, so when I have time I will be back to read a lot more, Please do keep up the fantastic work.
	~~<highlight-nsis>~~
	~~System::Call "winmm::mciSendStringA(t 'set cdaudio door close'~~, ~~t .r0~~, ~~i ${NSIS_MAX_STRLEN}~~,~~i $HWNDPARENT)i~~ .~~r1"~~
	~~</highlight-nsis>~~

	=== Output and Return ===		=== Output and Return ===

195.242.186.10: Undo revision 18063 by 195.242.186.10 (Talk)

2010-01-28T08:47:41Z

Undo revision 18063 by 195.242.186.10 (Talk)

â† Older revision		Revision as of 08:47, 28 January 2010
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	=== Close the Drive ===		=== Close the Drive ===
	<highlight-nsis>		<highlight-nsis>
	System::Call "winmm::mciSendStringA(t 'set cdaudio door ~~closed~~', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"		System::Call "winmm::mciSendStringA(t 'set cdaudio door close', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"
	</highlight-nsis>		</highlight-nsis>

195.242.186.10: /* Close the Drive */

2010-01-28T08:44:29Z

Close the Drive

â† Older revision		Revision as of 08:44, 28 January 2010
Line 33:		Line 33:
	=== Close the Drive ===		=== Close the Drive ===
	<highlight-nsis>		<highlight-nsis>
	System::Call "winmm::mciSendStringA(t 'set cdaudio door ~~close~~', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"		System::Call "winmm::mciSendStringA(t 'set cdaudio door closed', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"
	</highlight-nsis>		</highlight-nsis>

84.161.146.20: Information about Return values

2006-03-16T20:41:12Z

Information about Return values

â† Older revision		Revision as of 20:41, 16 March 2006
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	System::Call "winmm::mciSendStringA(t 'set cdaudio door close', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"		System::Call "winmm::mciSendStringA(t 'set cdaudio door close', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"
	</highlight-nsis>		</highlight-nsis>

			=== Output and Return ===
			Note that you may not want to get any output. You then just can use '''t .n''' instead of '''t .r0''' (or any other variable). Same for any other output. See the System Plugin Readme for more information about interaction with NSIS variables.

	== Further Reading ==		== Further Reading ==

84.161.146.20: /* Further Reading */ typo in wikilinking

2006-03-16T20:38:01Z

84.161.146.20: forgot category :)

2006-03-16T20:37:22Z

forgot category :)

â† Older revision		Revision as of 20:37, 16 March 2006
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	*[http://msdn.microsoft.com/library/default.asp?url=/library/en-us/multimed/htm/_win32_mcisendstring.asp mciSendString API Reference from MSDN]		*[http://msdn.microsoft.com/library/default.asp?url=/library/en-us/multimed/htm/_win32_mcisendstring.asp mciSendString API Reference from MSDN]
	*[http://msdn.microsoft.com/library/en-us/multimed/htm/_win32_multimedia_command_strings.asp Command String Reference from MSDN]		*[http://msdn.microsoft.com/library/en-us/multimed/htm/_win32_multimedia_command_strings.asp Command String Reference from MSDN]

			[Category:Disk, Path & File Functions]

84.161.146.20: created with information about opening/closing CD drives

2006-03-16T20:36:23Z

created with information about opening/closing CD drives

New page

I sorted out the WinAPI Calls for open and close CD/DVD Drives.
Note that if you have more than one drive installed, these calls will affect only the primary one.

== The Basics ==
By researching on the web, I found that you need to use the WinAPI function ''mciSendString'' to send a so called ''command string'' to the drive.
It's implemented as ANSI version from on Win95 (''mciSendStringA'') and as Unicode version from Win2000, XP and above (''mciSendStringU'').
It's located in winmm.dll in the system32 directory.

From MSDN we get the right syntax definition:
<highlight-cpp>
MCIERROR mciSendString(
LPCTSTR lpszCommand, // Pointer to a null-terminated string that specifies an MCI command string.
LPTSTR lpszReturnString, // Pointer to a buffer that receives return information.
UINT cchReturn, // Size, in characters, of the return buffer specified by the lpszReturnString parameter.
HANDLE hwndCallback // Handle to a callback window if the "notify" flag was specified in the command string.
);
</highlight-cpp>
So lets translate it to a NSIS System.dll Plugin call:

<highlight-nsis>
System::Call "winmm::mciSendStringA(t 'command string', t .s, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .s"
</highlight-nsis>

Note, that here I used the stack for any ouput (''.s''). I also used the ANSI version as you normally don't need to use Unicode anyway. As buffer size I recommend to always use ''${NSIS_MAX_STRLEN}'' for any call you use, except if you want a smaller string for some reason. As callback handle of course set the handle of the installer (''$HWNDPARENT'').

For the command string having his own complex syntax, I sorted the two interesting ones out:

=== Open the Drive ===
<highlight-nsis>
System::Call "winmm::mciSendStringA(t 'set cdaudio door open', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"
</highlight-nsis>

=== Close the Drive ===
<highlight-nsis>
System::Call "winmm::mciSendStringA(t 'set cdaudio door close', t .r0, i ${NSIS_MAX_STRLEN},i $HWNDPARENT)i .r1"
</highlight-nsis>

== Further Reading ==
*[http://msdn.microsoft.com/library/default.asp?url=/library/en-us/multimed/htm/_win32_mcisendstring.asp mciSendString API Reference from MSDN]
*[http://msdn.microsoft.com/library/en-us/multimed/htm/_win32_multimedia_command_strings.asp Command String Reference from MSDN]

â† Older revision		Revision as of 20:38, 16 March 2006
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	*[http://msdn.microsoft.com/library/en-us/multimed/htm/_win32_multimedia_command_strings.asp Command String Reference from MSDN]		*[http://msdn.microsoft.com/library/en-us/multimed/htm/_win32_multimedia_command_strings.asp Command String Reference from MSDN]

	[Category:Disk, Path & File Functions]		[[Category:Disk, Path & File Functions]]