Win32GUI: Gather raw_print text and display it all in single dialog

Defined strbuf_t and related routines to support dynamically sized
strings. Modified strip_newline() to strip the last newline in a string
instead of the first.

Simplified splash window code using new strbuf_t.

Prior to exiting game, re-enable getreturn and call wait_synch() in
case there is buffered raw prints that must be displayed to user.

sys/share/pcmain.c

@@ -139,6 +139,15 @@ char *argv[];
 /* use STDERR by default
 _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
 _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);*/
+/* Heap Debugging
+    _CrtSetDbgFlag( _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG)
+        | _CRTDBG_ALLOC_MEM_DF
+        | _CRTDBG_CHECK_ALWAYS_DF
+        | _CRTDBG_CHECK_CRT_DF
+        | _CRTDBG_DELAY_FREE_MEM_DF
+        | _CRTDBG_LEAK_CHECK_DF);
+    _CrtSetBreakAlloc(1423);
+*/
 # endif
 #endif
 

sys/share/pcsys.c

@@ -546,6 +546,8 @@ msexit()
         getreturn("to end");
     synch_cursor();
 #endif
+    getreturn_enabled = TRUE;
+    wait_synch();
     return;
 }
 #endif /* MICRO || WIN32 || OS2 */