Microsoft KB Archive/103636: Difference between revisions

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To get the absolute state of RLSD, use the MSRshadow. For more information, please see the following article in the Microsoft Knowledge Base:
To get the absolute state of RLSD, use the MSRshadow. For more information, please see the following article in the Microsoft Knowledge Base:


<blockquote>[[../win16sdk/q101417.htm|Q101417]] Accessing the Modem Status Register (MSR) in Windows</blockquote>
<blockquote>[[../101417|Q101417]] Accessing the Modem Status Register (MSR) in Windows</blockquote>
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Latest revision as of 16:17, 19 July 2020

BUG: EV_RLSDS Event Does Not Indicate Current RLSD State

Q103636



The information in this article applies to:


  • Microsoft Windows Software Development Kit (SDK) 3.1





SUMMARY

The EV_RLSDS communications event is documented as indicating the current state of the RLSD (receive-line-signal-detect or carrier detect). However, this event is never set.



SYMPTOMS

If SetCommEventMask() is used to enable the EV_RLSDS event, when GetCommEventMask() is called, the EV_RLSDS bit will always be 0 (zero).



RESOLUTION

To get the absolute state of RLSD, use the MSRshadow. For more information, please see the following article in the Microsoft Knowledge Base:

Q101417 Accessing the Modem Status Register (MSR) in Windows



STATUS

This will not be fixed in the Windows 3.1 COMM.DRV.

Additional query words: buglist3.10 3.10

Keywords :
Issue type :
Technology : kbAudDeveloper kbWin3xSearch kbSDKSearch kbWinSDKSearch kbWinSDK310


Last Reviewed: November 7, 1999
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