1 // Unicode support by Jim Park -- 08/23/2007
2 // Jim Park: Should probably turn this into a nice class for C++ programs.
3 
4 #pragma once
5 #include <windows.h>
6 #include <tchar.h>
7 // only include this file from one place in your DLL.
8 // (it is all static, if you use it in two places it will fail)
9 
10 #define EXDLL_INIT()           {  \
11         g_stringsize=string_size; \
12         g_stacktop=stacktop;      \
13         g_variables=variables; }
14 
15 // For page showing plug-ins
16 #define WM_NOTIFY_OUTER_NEXT (WM_USER+0x8)
17 #define WM_NOTIFY_CUSTOM_READY (WM_USER+0xd)
18 
19 /* Jim Park: This char is compared as an int value and therefore
20    it's fine as an ASCII.  Do not need to change to wchar_t since
21    it will get the same integer value. */
22 #define NOTIFY_BYE_BYE _T('x')
23 
24 typedef struct _stack_t {
25   struct _stack_t *next;
26   TCHAR text[1]; // this should be the length of string_size
27 } stack_t;
28 
29 static unsigned int g_stringsize;
30 static stack_t **g_stacktop;
31 static TCHAR *g_variables;
32 
33 
34 enum
35 {
36 INST_0,         // $0
37 INST_1,         // $1
38 INST_2,         // $2
39 INST_3,         // $3
40 INST_4,         // $4
41 INST_5,         // $5
42 INST_6,         // $6
43 INST_7,         // $7
44 INST_8,         // $8
45 INST_9,         // $9
46 INST_R0,        // $R0
47 INST_R1,        // $R1
48 INST_R2,        // $R2
49 INST_R3,        // $R3
50 INST_R4,        // $R4
51 INST_R5,        // $R5
52 INST_R6,        // $R6
53 INST_R7,        // $R7
54 INST_R8,        // $R8
55 INST_R9,        // $R9
56 INST_CMDLINE,   // $CMDLINE
57 INST_INSTDIR,   // $INSTDIR
58 INST_OUTDIR,    // $OUTDIR
59 INST_EXEDIR,    // $EXEDIR
60 INST_LANG,      // $LANGUAGE
61 __INST_LAST
62 };
63 
64 typedef struct {
65   int autoclose;
66   int all_user_var;
67   int exec_error;
68   int abort;
69   int exec_reboot;
70   int reboot_called;
71   int XXX_cur_insttype; // deprecated
72   int XXX_insttype_changed; // deprecated
73   int silent;
74   int instdir_error;
75   int rtl;
76   int errlvl;
77   int alter_reg_view;
78 } exec_flags_type;
79 
80 typedef struct {
81   exec_flags_type *exec_flags;
82   int (__stdcall *ExecuteCodeSegment)(int, HWND);
83   void (__stdcall *validate_filename)(TCHAR *);
84 } extra_parameters;
85 
86 static int    __stdcall popstring(TCHAR *str); // 0 on success, 1 on empty stack
87 static void   __stdcall pushstring(const TCHAR *str);
88 static char * __stdcall getuservariable(const int varnum);
89 static void   __stdcall setuservariable(const int varnum, const TCHAR *var);
90 
91 #ifdef _UNICODE
92 #define PopStringW(x) popstring(x)
93 #define PushStringW(x) pushstring(x)
94 #define SetUserVariableW(x,y) setuservariable(x,y)
95 
96 static int  __stdcall PopStringA(char* ansiStr);
97 static void __stdcall PushStringA(const char* ansiStr);
98 static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr);
99 static void __stdcall GetUserVariableA(const int varnum, char* ansiStr);
100 static void __stdcall SetUserVariableA(const int varnum, const char* ansiStr);
101 
102 #else
103 // ANSI defs
104 
105 #define PopStringA(x) popstring(x)
106 #define PushStringA(x) pushstring(x)
107 #define SetUserVariableA(x,y) setuservariable(x,y)
108 
109 static int  __stdcall PopStringW(wchar_t* wideStr);
110 static void __stdcall PushStringW(wchar_t* wideStr);
111 static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr);
112 static void __stdcall GetUserVariableA(const int varnum, char* ansiStr);
113 static void __stdcall SetUserVariableW(const int varnum, const wchar_t* wideStr);
114 
115 #endif
116 
117 static BOOL __stdcall IsUnicode(void)
118 static TCHAR* __stdcall AllocString();
119 
120