How To Determine the Windows Messaging Subsystem Default

MORE INFORMATION

Step-by-Step Procedures

1. In Visual FoxPro, open a new program window by typing the following in the Command window:

         MODIFY COMMAND
   					

2. Copy the following code into a program file:

      #DEFINE HKey_CURRENT_USER 2147483649
      DECLARE INTEGER RegCloseKey IN Win32API ;
         INTEGER nHKey
      DECLARE INTEGER RegOpenKey IN Win32API ;
         INTEGER nHKey, STRING @cSubKey, INTEGER @nResult
      DECLARE RegEnumValue IN ADVAPI32 INTEGER nKeyHandle, INTEGER iValue, ;
         STRING @cValueName, INTEGER @iValueLen, INTEGER, STRING @cTypeCode, ;
         STRING @cDataValue, INTEGER @iDataLen
   
      nSubKey = 0
      nErrCode = 0
      nKeyHandle = 0
      iValue = 0
      cValueName = SPACE(255)
      iValueLen = 255
      cTypeCode = SPACE(255)
      cDataValue = SPACE(255)
      iDataLen = 255
   
      *!* Determine what operating system you are on: Windows NT or
      *!* Windows 9x.
      IF "NT" $ OS(1)
         ckey = "Software\Microsoft\Windows NT\CurrentVersion\" + ;
            "Windows Messaging Subsystem\Profiles"
      ELSE
         ckey = "Software\Microsoft\Windows Messaging Subsystem\Profiles"
      ENDIF
   
      nErrCode = RegOpenKey(HKey_CURRENT_USER,ckey,@nKeyHandle)
      *!* If nErrCode <> 0, Windows messaging is probably not installed.
      IF nErrCode # 0
         WAIT WINDOW "Windows Messaging Key Not Present"
         RETURN nErrCode
      ENDIF
   
      RegEnumValue(nKeyHandle,0,@cValueName,@iValueLen,0,;
         @cTypeCode, @cDataValue, @iDataLen)
      *!* If cDataValue is blank, no profiles have been set up.
      IF EMPTY(cDataValue)
         WAIT WINDOW "No Windows Messaging Profiles Set"
         RETURN
      ELSE
         ? LEFT(cDataValue, iDataLen-1)
      ENDIF
      RegCloseKey(nKeyHandle)
   					

3. Save and run this program. RESULT: You should see text echoed in the main FoxPro window. This is the default Windows Message profile for this computer.