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: $ L. O D# ?! p% J5 sName = (WCHAR *) L"Poke";1 s. R" V( K$ {; j: D
q: K7 n: Q, n hr = m_pDisp->GetIDsOfNames () _- m, l# P& ?# h5 X6 ^
IID_NULL, // reserved 2 o2 U- ~2 x8 H8 a; z; P' a, |& a &Name, // Array of names to get IDs for 8 l6 h9 R O& S \3 L! y+ M 1, // # of names in the array5 B- _* s5 q% O# ]3 w2 g2 j/ M
LOCALE_SYSTEM_DEFAULT, // System locale: P5 _( b' i' r/ e/ N* z
&pokeID); // Array of IDs to fill on output 5 E N2 h; l* v6 e1 Y5 ?" V " A- O0 Z* A2 p! U7 ?% b! \! C: s
if (hr) * u. b1 u4 J, x o1 ~: {5 t: ]7 l# R {7 N& J+ o5 \, o/ ]" L) K, h
MessageBox ("Get Poke Unsuccessful");# l* A5 L) D! t6 `" h) T7 W
return; 9 |( t1 ~% a0 E9 o$ ~ }) R9 V; q' @# v) P$ o6 c: ~. {5 P
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/**************************传递数据给extend**************************************/9 ?( ?- b2 x' s* v* e/ ^, i) [
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ G. \* i i0 X9 V8 e& c
5 r! o% a% r6 a/ C. q valueStr = SysAllocString((WCHAR *) L"1232"); 2 _& I( ]4 _; o( n1 W7 A2 z Y* p VariantInit(&pokeVariant[0]); : E Q# p6 k! v$ r* l- s2 \
pokeVariant[0].vt = VT_BSTR;9 G% o* ^% H0 e2 m; U9 S
pokeVariant[0].bstrVal = valueStr; 7 r3 M0 T _% y) h! n" E4 @2 W! h/ l8 w7 m2 L0 F+ O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " `3 ^9 a6 J3 D, W& e+ ^; Q M VariantInit(&pokeVariant[1]); l! }9 q+ {6 c! G* U1 Z pokeVariant[1].vt = VT_BSTR; ( Q9 r! W! T1 u pokeVariant[1].bstrVal = itemStr; 9 S! s- s+ O# _ 5 J8 A8 z0 t+ B6 ]* g: O topicStr = SysAllocString((WCHAR *) L"system"); ) i; x3 M3 M' ]7 Q, Y- `/ |. }6 h VariantInit(&pokeVariant[2]); : D+ ?: y3 e0 A! I/ {
pokeVariant[2].vt = VT_BSTR; / S. q3 x6 D: \0 w pokeVariant[2].bstrVal = topicStr; 0 L+ T1 P; t; q' ]' W) ` H ' P1 ]1 n# @. h% ]// Set the DISPPARAMS structure that holds the variant. R1 ?% i9 i6 X# R# \4 _ E4 J$ }0 b+ T" {; ]1 V$ X7 N$ S
dp.rgvarg = pokeVariant; 9 O& c* |' i# U g; Y0 E$ m4 A, i+ R dp.cArgs = 3; * ^4 H5 a+ w( }& _- a/ ]2 | dp.rgdispidNamedArgs = NULL; # K0 V' R3 F- z dp.cNamedArgs = 0; - S. Q+ ^6 c+ p$ G' V$ ` , _1 ~+ S {! G& O% T' V// Call IDispatch::Invoke() 3 {. A5 n; g" s' M5 F8 n- M - K* L! ?3 O! J2 f' @9 H8 T2 ` hr = m_pDisp->Invoke( 3 D0 T, n& G' z" b2 o' D pokeID,# D1 L1 p! k' n" z* F$ \8 R. O
IID_NULL,' w4 V: S# Y) v
LOCALE_SYSTEM_DEFAULT,1 ?: V+ A) r% @ c" |: Q8 m
DISPATCH_METHOD,# P. K6 `) l$ H0 s, h1 F3 L; H
&dp, 2 j% ~( F2 w0 l% F! C6 m NULL, ) l6 M; Y$ Y# u* w* V# T7 t &ei,3 P v0 y8 U0 Z6 ]% I$ S5 s
&uiErr); " | ^. Z8 w% R; F# W9 I" H" N* X$ i- O3 j" V; _: k! o
SysFreeString(topicStr);* i2 U" O: V% f8 K' m+ Z
SysFreeString(itemStr); , z# G9 T x4 E/ Y+ Q% p; i* b SysFreeString(valueStr);) Q% t8 |7 n# r6 X9 G T
) J& m' A, z `: X* q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???2 {9 X3 r0 U! v7 _
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???? ( }: o8 n' e+ J; D/ V) [ E3 d1 B ; {0 a5 ~6 Q; B% R! B! W+ G# y) k( v( F, n. y; [! J( d
2.这是request的程序' P2 ~' u, s9 R
// Request a value from Extend! ~ h$ Y& t5 x' ]3 a
//) ]. L8 `- u9 U: |. N
// Initialize the variant that will hold the BSTR. Set the variant's" A( O; V% n1 C. Z& B2 _
// type flag to indicate the fact that this variant holds a BSTR. Place the+ c7 O& t% W; n. Q3 u; `
// BSTR into the variant structure. + d z6 E7 ]) Z$ ~3 O& l- C2 s7 C
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- ]! _# k9 F* n6 X
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - b7 C7 E; J5 B2 [# ^% y VariantInit(&requestVariant[0]); % ~0 U( F- }6 i& M, V* K+ x requestVariant[0].vt = VT_BSTR;- I6 R' k5 [* N; ~( d; u4 c
requestVariant[0].bstrVal = itemStr;1 n* M% N0 ^3 @5 t6 j3 q
8 p. e! j) l/ U2 U# y! X4 ?0 }" L
topicStr = SysAllocString((WCHAR *) L"system"); - @! g% R5 C5 L! F VariantInit(&requestVariant[1]); 4 [( a( h) P( t/ t requestVariant[1].vt = VT_BSTR; , W4 k1 `- B. [* M. m5 |1 b( M requestVariant[1].bstrVal = topicStr;5 N' N5 X4 z6 G4 C4 A* z2 |; E
6 [* `: E/ T! F9 V( Z
// Set the DISPPARAMS structure that holds the variant.. Y% N/ s& q& w( e5 X. m% B% o: g# r
9 s! C0 r- g/ O! f
dp2.rgvarg = requestVariant;7 F w& W) p& E$ M2 o4 `
dp2.cArgs = 2;. b; x( M% x$ a
dp2.rgdispidNamedArgs = NULL; % t. [! L3 a, e! X# p8 \ dp2.cNamedArgs = 0; : [$ p" S# ]) X* c2 x+ w- q+ Q - \# Q% q1 u; j3 O var.vt = VT_EMPTY; ( A( U2 k) M- [; V; K L2 O* p - R) O* ]: x! g// Call IDispatch::Invoke()+ z/ [, K: r7 v/ `5 {
+ [& Y' Q, o5 i2 w* p0 D/ H1 x hr = m_pDisp->Invoke($ q# b6 F- q( v2 @- P0 o
requestID, ( q# X6 _+ j( i( h IID_NULL,( Z* {5 T/ y3 M* p* ^0 P
LOCALE_SYSTEM_DEFAULT, " k1 q2 d- _+ p$ ~* \+ H: H% g DISPATCH_METHOD,$ g4 T5 S1 @ @! u. \# U" K) j
&dp2, [8 [, _8 a+ s1 Z &var, 4 x# a# E% j d! X7 G &ei,5 g8 x5 k( u# @/ l3 J$ e" G
&uiErr);# `4 w! Z" q- p; C4 }; n
+ A. ~2 e9 [3 D, x- F SysFreeString(topicStr); " M3 D* j' Z [. c0 x9 D SysFreeString(itemStr);* Z. d( R0 z6 L6 u$ D' f" h
请问该程序是获得extend里面的哪个值? / c4 O& i' |, H& y+ m; ?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????