Updated project so that it builds with MSC 5 and Window 2 SDK.

* Always define MINMAXINFO struct as it doesn't exist in the Windows 2
  SDK.
* Tidied up Makefile and prevent excessive warning with MSC 5.
* Updated Readme.md.

Author: MartinPayne

MainWnd.h

@@ -12,18 +12,18 @@ HWND CreateMainWindow();
 
 /* Minimum and maximum window sizing */
 #ifndef WM_GETMINMAXINFO
-  #define WM_GETMINMAXINFO    0x0024
-
-  typedef struct tagMINMAXINFO
-  {
-    POINT ptReserved;
-    POINT ptMaxSize;
-    POINT ptMaxPosition;
-    POINT ptMinTrackSize;
-    POINT ptMaxTrackSize;
-  } MINMAXINFO;
+  #define WM_GETMINMAXINFO 0x0024
 #endif
 
+typedef struct tagMINMAXINFO
+{
+  POINT ptReserved;
+  POINT ptMaxSize;
+  POINT ptMaxPosition;
+  POINT ptMinTrackSize;
+  POINT ptMaxTrackSize;
+} MINMAXINFO;
+
 /* Button colour */
 #ifndef COLOR_BTNFACE
   #define COLOR_BTNFACE 15

Readme.md

@@ -15,7 +15,7 @@ accompanies the
 [Building Win16 GUI Applications in C](http://www.transmissionzero.co.uk/computing/win16-apps-in-c/)
 article on [Transmission Zero](http://www.transmissionzero.co.uk/).
 
-The application is a little anarchronistic, since it makes use of functionality
+The application is a little anachronistic, since it makes use of functionality
 which didn't exist in Windows 1. An example is overlapped windows, which didn't
 exist until Windows 2 (Windows 1 only supported tiled windows). That doesn't
 magically make the functionality work on Windows 1, but means it works on the
@@ -36,13 +36,17 @@ Windows 3.1.
 
 ## Building the Application
 
-To build the application with Microsoft C, open a command prompt, change to the
-directory containing the Makefile, and run "make Win1App". Note that you will
-need a very old version of the C compiler and Windows SDK to build the
-application. I built it with Microsoft C 4 (not to be confused with Visual C++
-4), but I believe it will compile with Microsoft C 5 as well. It cannot be built
-with newer tools, e.g. Visual C++ 1.52, and I'm not aware of any freely
-available tools you can use to build it.
+To build the application you will either need Microsoft C 4 with a Windows 1 SDK
+or Microsoft C 5 with a Windows 2 SDK. To perform the build, open a command
+prompt (with the relevant environment variables set that Microsoft C needs),
+change to the directory containing the Makefile, and run "make Win1App".
+
+Note that Microsoft C should not be confused with Visual C++, as Visual C++ 4.0
+arrived on the scene nearly 10 years after Visual C 4.0. Even Visual C++ 1.0 is
+too new to build Windows 1 and 2 applications with.
+
+I'm not aware of any freely available tools you can use to build the
+application.
 
 ## Terms of Use
 

Win1App

@@ -1,27 +1,27 @@
 # This Makefile will build the Win1 Example application
 
 CC = cl
-CFLAGS = /D NDEBUG /G2swf /Os /W3 /Zp /FPi87
+CFLAGS = /c /D NDEBUG /G2swf /Os /W2 /Zp /FPi87
 LINK = link4
 RC = rc
 MAPSYM = mapsym
 MARK = mark
+EXE = Win1App.exe
 
+.c.obj:
+    $(CC) $(CFLAGS) $*.c
 
 aboutdlg.obj: aboutdlg.c aboutdlg.h resource.h globals.h
-	$(CC) $(CFLAGS) aboutdlg.c;
 
 mainwnd.obj: mainwnd.c mainwnd.h aboutdlg.h resource.h globals.h
-	$(CC) $(CFLAGS) mainwnd.c;
 
 winmain.obj: winmain.c mainwnd.h resource.h globals.h
-	$(CC) $(CFLAGS) winmain.c;
 
 resource.res: resource.rc App.ico resource.h
-	$(RC) /r resource.rc
+  $(RC) /r resource.rc
 
-Win1App.exe: winmain.obj mainwnd.obj aboutdlg.obj resource.res App.ico Win1App.def
-	$(LINK) winmain.obj mainwnd.obj aboutdlg.obj,Win1App.exe /align:16,/map,slibw.lib,Win1App.def
-	$(MAPSYM) Win1App.map
-	$(RC) resource.res Win1App.exe
-	$(MARK) FONT MEMORY Win1App.exe
+$(EXE): winmain.obj mainwnd.obj aboutdlg.obj resource.res App.ico Win1App.def
+  $(LINK) winmain.obj mainwnd.obj aboutdlg.obj,$(EXE) /align:16,/map,slibw.lib,Win1App.def
+  $(MAPSYM) Win1App.map
+  $(RC) resource.res $(EXE)
+  $(MARK) FONT MEMORY $(EXE)