我现在用c++编写了一个程序,希望能够和extend交换数据,以及自动对extend进行一些操作。我参阅了例子里的关于OLE AUTOMATION方面的c++程序,但搞得不是很懂。比如说,c++程序向extend发送一个数据: ! q& ]# d; _6 E! |Name = (WCHAR *) L"Poke";9 e9 R/ Z3 Q7 Y$ X
2 c# O8 L% R( y! X" L& Q
hr = m_pDisp->GetIDsOfNames ( / G# H9 Z0 x& [( L8 E IID_NULL, // reserved, g$ c. m+ ?0 E8 Q% ^. Z
&Name, // Array of names to get IDs for- C& s* M3 |+ T f7 w" x
1, // # of names in the array 3 w& c- l D9 b LOCALE_SYSTEM_DEFAULT, // System locale & b v4 A& e& ^. w5 x &pokeID); // Array of IDs to fill on output5 g1 f, [* \4 b' r
* I3 d5 f8 W0 B. V: r" ^
if (hr)$ I$ \7 G1 {( M# a9 h3 K
{ ! h; M9 m5 q, |/ ~7 I5 v- `( r0 P MessageBox ("Get Poke Unsuccessful"); % c6 ]" N2 H- i. X' y% N% l7 j0 S return; ' o$ L5 N7 X, u& Q } " M9 Q& `; U) l: f% ] D$ `: D6 @4 S6 `7 g5 i! ~
/**************************传递数据给extend**************************************/ e% s. B% z# K/ y+ B) C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, a2 ~6 Z1 k! ?% y7 N
) x$ l5 Q& N# r. D; Q2 z
valueStr = SysAllocString((WCHAR *) L"1232");, r% G/ c) R0 @/ ]1 O9 h
VariantInit(&pokeVariant[0]); 5 r* F1 Z8 x/ m( S7 V1 Q pokeVariant[0].vt = VT_BSTR;: [; ~4 }) x X' U8 @. F4 K
pokeVariant[0].bstrVal = valueStr;6 l( |) ^: F) _' [- I
" y* Q, [, J1 }# D9 d! ?: b5 w0 E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( {8 D3 |3 X% e, |( v& t0 R VariantInit(&pokeVariant[1]); / R% G# w" K' B2 _4 s# V; ~2 } pokeVariant[1].vt = VT_BSTR; p, ]) O' M# E! K1 R) d pokeVariant[1].bstrVal = itemStr; 2 d7 v! g8 g3 X- m# z, w' C8 v 6 s' q- Q4 v; q+ g6 R* R topicStr = SysAllocString((WCHAR *) L"system"); - W ^- ?% M& ]' i% } VariantInit(&pokeVariant[2]); 8 J- O; d/ S( D/ \& f+ G
pokeVariant[2].vt = VT_BSTR; 6 ^0 \9 \5 N4 ~. x+ g9 C pokeVariant[2].bstrVal = topicStr; . _5 f# `) a8 m- @7 s* c% _ 6 i# y @+ ]! K) p/ e V7 d1 J9 h4 S// Set the DISPPARAMS structure that holds the variant.* J5 x3 p' A( P8 @
% A" o6 |9 Y: P! `5 e
dp.rgvarg = pokeVariant; - R7 ^+ j3 I5 i8 F0 |3 a dp.cArgs = 3;' u" E4 p: y/ v* n; {9 {5 o
dp.rgdispidNamedArgs = NULL;" u& H2 p7 _( x7 z
dp.cNamedArgs = 0; , M2 x) J8 v- J5 ?/ B e; d9 B- L: v! Q$ W" ?* c; }
// Call IDispatch::Invoke()* q% c! k, {. r$ R/ J
% L3 x9 w: s: o* I3 Y
hr = m_pDisp->Invoke( + I8 m1 H$ a. o4 z8 H% M pokeID,' E. f; Q9 P. ^- @* O
IID_NULL, 5 t/ g8 p0 v, ?* f. ^. t LOCALE_SYSTEM_DEFAULT, - {$ y0 f+ ]4 Q" z DISPATCH_METHOD,9 h& t3 F/ b: U+ O% r
&dp," U. V8 l0 o5 Y4 t
NULL,: J6 K7 H" A0 g3 z8 ]6 G( J
&ei, 6 Y& [9 O, R* U& f &uiErr);+ @% M: ]3 V) X0 s
+ B. [% n& i r+ q
SysFreeString(topicStr); % }3 w. \' k; j8 W1 ^ SysFreeString(itemStr); , e0 Q1 d4 a! Z$ ?* B4 [. `, V" t8 U SysFreeString(valueStr);8 h$ Q% r4 [0 B# G; a- F
+ a& D5 J$ K' Q. a1 I% J现在这个程序可以实现将1232这个数据发送到extend,extend有一个对话框弹出并出现1232这个数据,不知道这个对话框为什么会弹出并显示这个数据???/ O3 p e7 |8 e; f- j, A
此外我希望将这个数据赋给extend程序里面的一个变量,请问如何实现????3 W$ v- I. Z, O, v# R. O3 C! L
% Z3 `/ a6 z% @7 }* q) J" Y# N5 A# M
2.这是request的程序3 a2 a+ s4 ^: x6 O k6 @
// Request a value from Extend ) b/ i! x' `+ R5 s, g$ [3 ?// $ m6 v o; L; ~$ Q2 Y, h// Initialize the variant that will hold the BSTR. Set the variant's1 j Z" K0 n( o% `$ Q. S
// type flag to indicate the fact that this variant holds a BSTR. Place the0 a, K8 H. {* R$ ^0 ~
// BSTR into the variant structure.9 [) O! a! h" w) S! ^- n
% E1 P6 {: T/ e& h9 d D$ R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 u! T" e" y1 p, k2 X/ G ) E+ A" v% h0 o [# C5 }9 h; d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); s3 Y5 K* g# z; U
VariantInit(&requestVariant[0]); & \: P# b. e4 M7 _5 D) h6 Z6 L
requestVariant[0].vt = VT_BSTR;8 S/ N, E+ M, j4 G
requestVariant[0].bstrVal = itemStr;9 T! [' E. a4 E$ `2 F& L
- G1 [$ m" q$ a: J8 t
topicStr = SysAllocString((WCHAR *) L"system");5 }' v* p% g) s$ r4 H* v
VariantInit(&requestVariant[1]); % }9 l2 d, Q, o2 } requestVariant[1].vt = VT_BSTR; 0 i. V, }$ O; L+ M: U requestVariant[1].bstrVal = topicStr; . }( z$ i+ l7 w( T ) M! L8 x r0 U- u// Set the DISPPARAMS structure that holds the variant.5 l/ S9 H: N. y5 Z* ]0 V. @7 r' s
) ^( }! }; F5 V1 J U$ k dp2.rgvarg = requestVariant;. A6 | r2 A6 ?* ~3 \' Y
dp2.cArgs = 2;# c/ F' i# D6 r2 v! O. S( e
dp2.rgdispidNamedArgs = NULL; 7 X: v' O) G/ V5 }: H; Y& y dp2.cNamedArgs = 0; 7 c6 m2 @1 D8 g- b3 g2 g; Y# C: p8 q y W
var.vt = VT_EMPTY;. _7 \2 R0 N9 y5 t" C
4 b1 i' H: Z% f! D+ A7 @& w
// Call IDispatch::Invoke() + |& D: ]4 ?- V8 b, t1 f/ } * ~. {4 N$ f q$ ?, Q/ ]1 ^ Y hr = m_pDisp->Invoke( . O- j: Z. |* J! d6 g requestID, ) y5 ~) L3 h5 j8 v1 | IID_NULL, $ r$ M2 u( m) | LOCALE_SYSTEM_DEFAULT, 6 y9 N5 k: Z& Q- _; { DISPATCH_METHOD, $ |) h7 W* u g( D# F &dp2,. G6 U+ b- y. M1 a
&var,& C7 j3 H+ o% g% N C
&ei, ( L* Z$ r5 i. q% E$ o2 [2 ] &uiErr); - W% s( I. v8 q- [( A9 @. A2 a- |0 q1 z: i% F/ O+ K0 ~, ~
SysFreeString(topicStr);9 } ^. w$ \; }6 M' t
SysFreeString(itemStr);, T: J) l- s1 P6 w, z
请问该程序是获得extend里面的哪个值? & Z1 w) t! r; q如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????