1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
{
Original Code from
(C) 2001 - Peter Windridge
Code in separate unit and some changes
2003 by Bernhard Mayer
Fixed and formatted by Brett Dever
http://editor.nfscheats.com/
simply include this unit in your plugin project and export
functions as needed
}
unit nsis;
interface
uses
windows, CommCtrl, SysUtils;
type
VarConstants = (
INST_0, // $0
INST_1, // $1
INST_2, // $2
INST_3, // $3
INST_4, // $4
INST_5, // $5
INST_6, // $6
INST_7, // $7
INST_8, // $8
INST_9, // $9
INST_R0, // $R0
INST_R1, // $R1
INST_R2, // $R2
INST_R3, // $R3
INST_R4, // $R4
INST_R5, // $R5
INST_R6, // $R6
INST_R7, // $R7
INST_R8, // $R8
INST_R9, // $R9
INST_CMDLINE, // $CMDLINE
INST_INSTDIR, // $INSTDIR
INST_OUTDIR, // $OUTDIR
INST_EXEDIR, // $EXEDIR
INST_LANG, // $LANGUAGE
__INST_LAST
);
TVariableList = INST_0..__INST_LAST;
type
PluginCallbackMessages = (
NSPIM_UNLOAD, // This is the last message a plugin gets, do final cleanup
NSPIM_GUIUNLOAD // Called after .onGUIEnd
);
TNSPIM = NSPIM_UNLOAD..NSPIM_GUIUNLOAD;
//TPluginCallback = function (const NSPIM: Integer): Pointer; cdecl;
TExecuteCodeSegment = function (const funct_id: Integer; const parent: HWND): Integer; stdcall;
Tvalidate_filename = procedure (const filename: PChar); stdcall;
TRegisterPluginCallback = function (const DllInstance: HMODULE; const CallbackFunction: Pointer): Integer; stdcall;
pexec_flags_t = ^exec_flags_t;
exec_flags_t = record
autoclose: Integer;
all_user_var: Integer;
exec_error: Integer;
abort: Integer;
exec_reboot: Integer;
reboot_called: Integer;
XXX_cur_insttype: Integer;
plugin_api_version: Integer;
silent: Integer;
instdir_error: Integer;
rtl: Integer;
errlvl: Integer;
alter_reg_view: Integer;
status_update: Integer;
end;
pextrap_t = ^extrap_t;
extrap_t = record
exec_flags: Pointer; // exec_flags_t;
exec_code_segment: TExecuteCodeSegment; // TFarProc;
validate_filename: Pointer; // Tvalidate_filename;
RegisterPluginCallback: Pointer; //TRegisterPluginCallback;
end;
pstack_t = ^stack_t;
stack_t = record
next: pstack_t;
text: PChar;
end;
var
g_stringsize: integer;
g_stacktop: ^pstack_t;
g_variables: PChar;
g_hwndParent: HWND;
g_hwndList: HWND;
g_hwndLogList: HWND;
g_extraparameters: pextrap_t;
procedure Init(const hwndParent: HWND; const string_size: integer; const variables: PChar; const stacktop: pointer; const extraparameters: pointer = nil);
function LogMessage(Msg : String): BOOL;
function Call(NSIS_func : String) : Integer;
function PopString(): string;
procedure PushString(const str: string='');
function GetUserVariable(const varnum: TVariableList): string;
procedure SetUserVariable(const varnum: TVariableList; const value: string);
procedure NSISDialog(const text, caption: string; const buttons: integer);
implementation
procedure Init(const hwndParent: HWND; const string_size: integer; const variables: PChar; const stacktop: pointer; const extraparameters: pointer = nil);
begin
g_stringsize := string_size;
g_hwndParent := hwndParent;
g_stacktop := stacktop;
g_variables := variables;
g_hwndList := FindWindowEx(FindWindowEx(g_hwndParent, 0, '#32770', nil), 0,'SysListView32', nil);
g_extraparameters := extraparameters;
end;
function Call(NSIS_func : String) : Integer;
var
codeoffset: Integer; //The ID of nsis function
begin
Result := 0;
codeoffset := StrToIntDef(NSIS_func, 0);
if (codeoffset <> 0) and (g_extraparameters <> nil) then
begin
codeoffset := codeoffset - 1;
Result := g_extraparameters.exec_code_segment(codeoffset, g_hwndParent);
end;
end;
function LogMessage(Msg : String): BOOL;
var
ItemCount : Integer;
item: TLVItem;
begin
Result := FAlse;
if g_hwndList = 0 then exit;
FillChar( item, sizeof(item), 0 );
ItemCount := SendMessage(g_hwndList, LVM_GETITEMCOUNT, 0, 0);
item.iItem := ItemCount;
item.mask := LVIF_TEXT;
item.pszText := PChar(Msg);
ListView_InsertItem(g_hwndList, item);
ListView_EnsureVisible(g_hwndList, ItemCount, TRUE);
end;
function PopString(): string;
var
th: pstack_t;
begin
if integer(g_stacktop^) <> 0 then begin
th := g_stacktop^;
Result := PChar(@th.text);
g_stacktop^ := th.next;
GlobalFree(HGLOBAL(th));
end;
end;
procedure PushString(const str: string='');
var
th: pstack_t;
begin
if integer(g_stacktop) <> 0 then begin
th := pstack_t(GlobalAlloc(GPTR, SizeOf(stack_t) + g_stringsize));
lstrcpyn(@th.text, PChar(str), g_stringsize);
th.next := g_stacktop^;
g_stacktop^ := th;
end;
end;
function GetUserVariable(const varnum: TVariableList): string;
begin
if (integer(varnum) >= 0) and (integer(varnum) < integer(__INST_LAST)) then
Result := g_variables + integer(varnum) * g_stringsize
else
Result := '';
end;
procedure SetUserVariable(const varnum: TVariableList; const value: string);
begin
if (value <> '') and (integer(varnum) >= 0) and (integer(varnum) < integer(__INST_LAST)) then
lstrcpy(g_variables + integer(varnum) * g_stringsize, PChar(value))
end;
procedure NSISDialog(const text, caption: string; const buttons: integer);
var
hwndOwner: HWND;
begin
hwndOwner := g_hwndParent;
if not IsWindow(g_hwndParent) then hwndOwner := 0; // g_hwndParent is not valid in NSPIM_[GUI]UNLOAD
MessageBox(hwndOwner, PChar(text), PChar(caption), buttons);
end;
begin
end.
|
