BUG: PEEKCHARQQ Fails in QuickWin or Standard Graphics Program

 Last reviewed: July 3, 1997
Article ID: Q150127
The information in this article applies to:
  • Microsoft FORTRAN PowerStation 32 for Windows NT, version 1.0
  • Microsoft FORTRAN PowerStation for Windows 95 and Windows NT, version 4.0

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.

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

Keywords : FORTLngIss kbprg
Version : 4.0 1.0 4.0
Platform : NT WINDOWS
Issue type : kbbug

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Last reviewed: July 3, 1997
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