rev.hst

BOSS窗口开发 C 语言程序库

**
**  05.12.87  - wns_text was incorrectly compensating for single line
**              borderless windows (Attachmate follow up).
**
**  05.04.87  - EXPLODING windows are now supported!! Simply add 800 to
**              the video page when calling wn_open()!
**
**            - Calls of the form wn_insrow(wn,0) and wn_delrow(wn,0) 
**              caused the border to be klobbered.  wn_insrow() and
**              wn_delrow() were taught about borders.
**
**  03.31.87  - wn_printf [wns_wtext()] was incorrectly displaying graphics 
**              characters. Thanks to Mark MacGee for reporting the problem.
**
**  03.23.87  - Attachmate reported that wn_gets was doing funny things
**              on single line bordered windows on PCs and PC clones but
**              was fine on ATs and AT clones!  It would appear that the
**              PC/PC_CLONE BIOS can not deal with scrolling single line
**              windows.  wn_delrow() was taught to erase single line
**              windows and avoid using the BIOS for this special case.
**
**  03.19.87  - Argh!! Datalight elected to use M_I86 as a predefined
**              equate.  References to M_I86 were changed to 
**              MSCV3 | MSCV4. (Datalight 3.XX)
**
**  The following changes were incorporated in the 03.15.87 release:
**
**  03.01.87  - wn_activate was incorrectly computing the coordinates of
**              unbordered windows.  Thanks to Peter Fletcher for reporting
**              the problem and supplying a solution.
**
**  01.22.87  - wn_dborder() was using the wrong attribute (wn-style,
**              instead of wn->bstyle). Thanks to Peter Partch for
**              reporting the problem and supplying a solution.
**
**  01.06.87  - wn_activate was not walking through the current linked 
**              list of windows. In rare cases this would cause two
**              windows to be considered non-overlapping when in fact
**              they were.  Thanks to Robert Klotz for reporting the
**              problem.
**
**  The following changes were incorporated in the 01.01.87 release:
**
**  12.19.86  - Removed a needless call to wn_err(wn,"wn_printf") in
**              wn_title().
**
**  12.16.86  - Improved centering logic for window titles.
**              Thanks to Steve Liberty for suggesting the change.
**
**  12.14.86  - Incorporated compiler specific equates in windows.h.
**
**  12.13.86  - wns_mtype() returns 0 for mode 3, 2 for mode 0 or 2,
**              and 7 for mode 7. (Internal Use - This change allowed
**              for the prevention of blue on black characters when
**              the video mode is 2 and a color monitor is in use.
**              (wns_fixc & wns_mtype).
**
**            - BASIC support for Mark Williams "Lets C".
**
**            - Tightend free() checks in wn_activate, wn_close, and
**              wn_restore.
**
**  12.12.86  - wn_puts() was not adding the original physical cursor
**              location to the logical cursor location. 
**              Thanks to Marek Glowacki for reporting the problem.
**
**  12.10.86  - Allow v_locate() to position the cursor slightly off
**              the screen.  Previous limit was (24,79) current limit
**              is (25,80) which is just beyond the edge of the screen.
**              This was done to insure that hidden cursors remain out
**              of view.
**
**            - Improved cursor handling when wn_dmaflg = FALSE.
**
**  12.09.86  - Taught wn_activate to honor cursor position of window
**              being activated. This will insure the cursor is always
**              in the right logical and physical position. 
**              More cosmetic enhancement than logic error correction.
**
**  The following changes were incorporated in the 12.01.86 release:
**
**  11.28.86  - Reverse video attribute was not being set correctly
**              on MGAs - corrected.
**
**  11.19.86  - wn_dborder was incorrectly computing the row offset.
**              Thanks to Steve Thatcher for reporting the problem.
**              
**  11.16.86  - Added ".smeth" member to window control block. This 
**              member defines the scrolling method to be used in
**              the window. It can be set to BIOS or DMAS, the default
**              is DMAS.  
**
**            - All routines that reference wn_activate will return
**              NULL if the window could not be activated.  This is 
**              usually due to a lack of free memory.
**
**  The following changes were incorporated in the 11.14.86 release:
**
**  11.13.86  - Closing windows in random order when exiting "sometimes"
**              produced null pointer assignment error messages or 
**              incorrect screen images - corrected.
**
**            - wn_natrib() was not storing the newly defined window
**              attribute in the window control block - corrected.
**
**  11.09.86  - Support for Datalight C added.
**
**  11.02.86  - v_border() added.  Allows color of border area to be
**              set on CGAs with color monitors.
**
**  11.01.86  - wn_fixcsr was not adding the original physical cursor
**              location to the logical cursor location. 
**              Thanks to Bill Harts for reporting the problem.
**
**            - wn_puts was computing the virtual cursor location
**              incorrectly. Thanks to Eric Lundstrom!
**
**            - Logic to dectect null strings was incorporated into
**              _vidblt.  This will prevent 64k worth of trash from
**              being blitted to the video ram.
**
**  10.30.86  - All references to MSC in "windows.h" were changed
**              to M_I86.  This forces "windows.fns" to be included
**              under Microsoft C.  This change was also applied to
**              "windows.c".
**
**  10.26.86  - Full float, long, etc. support for wn_printf in
**              all Lattice versions.  Microsoft 3.XX is the only
**              one in the dark ages.
**
**  10.23.86  - Tip of the hat to Russ Thackson for the improved
**              overlaping window detection technique incorporated
**              in wn_activate().
**
**  The following changes were incorporated in the 10.22.86 release:
**
**  10.22.86  - wn_activate() was causing unnecessary window 
**              thrashing on non-overlapping windows. Corrected.
**
**  The following changes were incorporated in the 10.10.86 release:
**
**  09.27.86  - Tiled windows are now supported! wn_activate() added.
**
**            - wn_gets() was not calling wns_err - corrected.  This
**              was not a bug, just continued support for wild pointer
**              checks.
**
**  09.25.86  - New logic for vidblt(). Fast mode now works on color
**              without causing snow or flicker!!  Video updates now 
**              occur at the fastest possible speed!  The effect of
**              wn_sbit now conforms exactly to the description in the
**              manual.
**
**            - wn_printf (CI86) now has full float support. Thanks
**              to Rob Sullivan for reporting the CI86 problem. Lattice
**              and MSC Version 3.0 are the only hold outs for full
**              wn_print support.  MSC Version 3.0 support will never
**              be incorporated. If you are using MSC Version 3.00 
**              you will have to upgrade to Version 4.XX.  The price
**              of the update is well worth it. Version 4.00 is a
**              work of art! Lattice support will be delayed until
**              Lattice gets around to supporting vsprintf() as
**              defined by the evolving ANSI standard.
**
**  09.17.86  - seperate modules to decrease memory overhead.
**
**            - link list support (wn_open,wn_close,WINDOWPTR struct)
**              This is the ground work for tiled window support.
**
**  09.02.86  - use registers in wns_savres() for speed (MSC).
**
**  The following changes were incorporated in the 08.30.86 release:
**
**  08.28.86  - wn_gets was delclared as (char *) but returning
**              (void).  Corrected to return (char *).
**
**  08.27.86  - wns_wtext() was not correctly handling borderless
**              windows. Corrected.
**
**            - wn_printf() was not correctly handing cases such as:
**              wn_printf(wn,"%s %d %f %d\n", "text", 2, 2.2, 5);
**              The window boss now supports a complete implementation
**              of printf formatting under Microsoft C Version 4.00.
**              All other compilers and versions support an INTEGER only
**              wn_printf.  This will be corrected in a future release.
**
**  08.16.86  - Added wn_gets(). Get string in window with validation.
**
**  The following chages were incorporated in the 06.02.86 release.
**
**  06.02.86  - v_smode was using bh instead of ah. Corrected.
**              Thanks to Rob Rainwater!!
**
**  05.26.86  - Added wn_natrib. Set new window attribute NOW!
**
**  05.25.86  - Corrected a potential problem with a couple of the routies
**              in MSVLIB.ASM. Registers SI & DI were being used but not
**              being saved. This "may" cause spurious probles with "C"
**              programs that use register variables.  Microsoft C 3.0 only.
**
**            - wn_titla was not calling wns_fixc. Corrected.
**
**  05.24.86  - Added wn_titla. write window title with attributes.
**
**  05.10.86  - wn_putsa was not calling wns_fixc.  This caused problems
**              when CGA was in mode bw80 but putsa was called with a
**              valid color atrib.
**
**  The following changes were incororated in the 05.08.86 release.
**
**  05.07.86  - Additions for Microsoft "C" version 3.0
**
**  05.05.86  - wn_printf fix for lattice version 3.0.
**
**  04.25.86  - Added support for handling backspace, delete, & BELL
**              characters correctly (wns_wtext).
**
**              Incorporated v_wtty in vlib.asm.
**
**  Initial Release..
**
**  01.24.86  - Initial release with a bit of a false start thanks to
**              Microsoft's Lib.
**
*/