PMPrintf

2.20181103 Version 2.60 (pmprintf.exe 96.255) * - Added ExceptQ to the PM viewer (pmprintf.exe) * - Fixed trap in pmprintf.exe when string in queue is to long. Remember it's still possible to crash your application when you supply too long strings to pmprintf. (More than 4k?) * - You can now disable the PMPRINTF API by setting the environment variable "NOPMPRINTF" (to any value). This has been requested by someone and probably improves performance when not debugging...

PMprintf 2.57 PMprintf -- 'printf' support for OS/2 Presentation Manager ========================================================== Copyright (c) International Business Machines Corporation, 1991, 1993. All rights reserved. Abstract """""""" * Would you like to use the C standard function 'printf' in your PM programs for debugging, occasional error messages, etc.? * Do you have existing subroutines, that use printf, that you'd like to use in PM programs? If you answer yes to either of these, you may find the PMprintf tool useful. PMprintf comprises two parts: printf.obj -- an object file, compiled with IBM C Set/2, which you link in with your PM program just like any other subroutine. This provides the printf service to that program. You write printf calls in your C program in the usual way; the printf subroutine buffers the data (on a per-thread basis in multi-thread programs) and adds each completed line to a message queue. For example, the following printf call will write a line to the PMprintf application and sound the Alert (bell): printf("This seems to work\a\n"); Sample source (in C) is also provided for the printf function. pmprintf.exe -- is a PM application which sets up the queue used by printf and then "catches" and displays incoming printf lines. It is a kind of 'monitor' or 'virtual console' which will accept lines from any number of processes that use printf. PMprintf offers a number of options, including the ability to log the incoming lines to a file. See below for a short description of the options. If PMprintf has been started then it will display the incoming lines from printf calls in other processes. If it has not been started, then printf calls are quietly ignored (they return 0, not an error). PMprintf can be started or stopped at any time, and printf calls will then become active or be ignored as appropriate. Sample source for printf (printf.c) is included in the package; this offers certain customization options (for example, you can cause a prefix to be added to the start of each line so that different applications can have unique output lines, or cause lines to be broken at a certain length). There are also some usage hints and minor restrictions, documented in the header of printf.c. ----------- Mike Cowlishaw, IBM UK Laboratories