BUG: PEEKCHARQQ Fails in QuickWin or Standard Graphics Program (150127)


The information in this article applies to:

  • Microsoft Fortran Powerstation 32 for Windows NT 1.0
  • Microsoft Fortran PowerStation for Windows 95 and Windows NT 4.0
This article was previously published under Q150127

SYMPTOMS

Using the PEEKCHARQQ() run-time function to check the keystroke buffer for keyboard characters will fail, causing .false. to be returned as the function's result.

RESOLUTION

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Problem

  1. Using the sample code listed below, create a QuickWin or Standard Graphics application.
  2. Run the application. Running the application causes the message "Press any key to exit" to be displayed 100 times. Then the application quits.
NOTE: Pressing any key does not halt the application because PEEKCHARQQ() always returns .false. in a QuickWin or Standard Graphics program.

Sample Code

! Compile options needed: /MW or /MWs

      INCLUDE 'FLIB.FI'
      INCLUDE 'FLIB.FD'

      INTEGER COUNT
      LOGICAL DONE

      COUNT = 0
      DONE = .FALSE.

10    DO WHILE( (.NOT. DONE) .AND. (COUNT .LT. 100) )
         WRITE(*, *) 'Press any key to exit'
         IF ( PEEKCHARQQ() ) THEN
            DONE = .TRUE.
            GOTO 10
         END IF
         COUNT = COUNT + 1
      END DO
      WRITE(*,*) 'Program terminated...'
      END
Modification Type:MajorLast Reviewed:10/17/2003
Keywords:kbbug kbLangFortran kbprogramming KB150127
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