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: ' A5 y6 m5 ~* J6 UName = (WCHAR *) L"Poke";# F3 n4 T$ L9 d7 c
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hr = m_pDisp->GetIDsOfNames ( 6 o- K Z( g- J5 ]2 V1 h. Z9 s IID_NULL, // reserved# n) e. ]# `! t! D8 [
&Name, // Array of names to get IDs for9 Q0 ~3 f* |& c9 P
1, // # of names in the array 7 g @! f& N0 g3 V6 Q- z7 `; W7 N LOCALE_SYSTEM_DEFAULT, // System locale 1 q8 Z" l9 y( H6 y( w &pokeID); // Array of IDs to fill on output J. v: @. R2 y) L8 J9 D 2 i9 L, ?9 c$ {0 u% V o& ]* D if (hr) . x. G) H) Q2 L. o, y {5 y+ Z* Y! G) N% _& e" y; z8 |
MessageBox ("Get Poke Unsuccessful");& a, I. G% D8 s# R
return;- @6 }# G; }& R6 \- L% q! P
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/**************************传递数据给extend**************************************/ & h, H( O+ d/ F( h* S3 L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # o5 [; D4 Z5 @; _+ j { ( P: V* Q- S8 K. E4 |% W u, ^$ m z
valueStr = SysAllocString((WCHAR *) L"1232");# B8 ~8 E8 y; k3 v1 t. ^
VariantInit(&pokeVariant[0]); * J; O: x3 P# I( F2 D5 I8 T
pokeVariant[0].vt = VT_BSTR; & D, [% `1 \9 ^+ h" U: @ pokeVariant[0].bstrVal = valueStr; : X# l G6 g/ ~4 z3 S 4 R6 b1 G1 V+ c' u4 i( f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' |) G: H, U/ u# \8 a3 j1 Z8 V4 f
VariantInit(&pokeVariant[1]); 3 O$ R% d. }% h/ u pokeVariant[1].vt = VT_BSTR;7 E4 V: y2 z, ]) q! f9 m
pokeVariant[1].bstrVal = itemStr;& [4 }0 Z) ]1 M9 j! `/ t
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topicStr = SysAllocString((WCHAR *) L"system");9 a4 v5 z/ ]7 j+ m) o" ]
VariantInit(&pokeVariant[2]); + m, S; V) H" Q
pokeVariant[2].vt = VT_BSTR;0 o- X7 G! J6 I7 u; | c
pokeVariant[2].bstrVal = topicStr; - P' d( d5 o% ^3 G& u V: d/ U4 J- {$ t. l$ u6 P
// Set the DISPPARAMS structure that holds the variant.$ o/ G. l! ^+ E6 [; E! C! f. r+ v
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dp.rgvarg = pokeVariant; - l( r r: _# y4 p3 B. h* |2 ?' A8 k dp.cArgs = 3; 8 ~1 l& f" |" F8 [) Z/ { dp.rgdispidNamedArgs = NULL; 0 A I" s" t5 w& t2 E dp.cNamedArgs = 0;2 u' K% `& _# [$ T9 V( s6 o
- ^+ U! N" D* y// Call IDispatch::Invoke() - b# g; F2 w8 w, C 3 |% U4 ]5 W3 A' I hr = m_pDisp->Invoke( . A+ x) C1 j4 B5 g+ M3 n& S pokeID, 6 w5 f1 G/ ?8 G( x- ^ IID_NULL, & T) j0 K4 A* m3 r LOCALE_SYSTEM_DEFAULT, & Y# h8 ?4 [6 K3 T( r DISPATCH_METHOD, . ~- @, R# ?% e. ]+ g! m &dp,. B# D7 b! N* \1 [
NULL, ) v: v6 L) T" \4 O. E3 { &ei, $ ]& e( {8 h+ J &uiErr);1 O! n; ^) T6 U
% r! X1 ^" Y+ G* T0 V8 v# T! \ SysFreeString(topicStr);+ o' f2 i9 F j5 C& _ s
SysFreeString(itemStr);( W% N* d7 P% F# U; G) `' P! v9 H
SysFreeString(valueStr);1 }, B4 B [1 U- Y
1 i7 J: f/ A" p) D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???0 d! g# ?( W& ~" V6 }# I9 C
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????# O9 f4 W. X0 R( b1 a
) F, l8 }; I0 C + S# a! _) g8 s! J2.这是request的程序" ]5 W' ~; j" v0 W6 m" q
// Request a value from Extend / a: L5 K. R* F0 F0 \3 N) O) k( a// 4 y. i8 O: Q& H, N0 L( G// Initialize the variant that will hold the BSTR. Set the variant's 1 g, P. |; Z1 `8 c9 D' F; _// type flag to indicate the fact that this variant holds a BSTR. Place the& w9 \1 ^% ]' |
// BSTR into the variant structure. ' c# G4 w- h' P ! @6 u7 O/ u; ?" p1 n, `) X8 U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, v! z1 v8 U* G; F0 G2 Q" V( E
6 w" O5 U, B6 y" Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / Y; N4 T# J$ f+ y" q2 [ VariantInit(&requestVariant[0]); * h6 f& M$ K, A; e* ~! U A requestVariant[0].vt = VT_BSTR; ) P8 `( D# p. ]- M% z0 K5 Q requestVariant[0].bstrVal = itemStr;" t7 j5 p) f- ]5 M$ M
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topicStr = SysAllocString((WCHAR *) L"system");. x z3 n+ S. O$ G% R9 G% y
VariantInit(&requestVariant[1]); 4 G/ v- T& Y! n requestVariant[1].vt = VT_BSTR; 6 u3 f- @$ X% y) D' d! ? H- A( y requestVariant[1].bstrVal = topicStr; |. \' o: U1 ^ G: {/ p' m! P
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// Set the DISPPARAMS structure that holds the variant.& u: q6 |$ M2 x. E8 c' F" m2 K
; F2 {. u0 x3 E2 g: P+ {) ]6 { dp2.rgvarg = requestVariant; : ~/ K1 ^+ C5 K* S. U% | dp2.cArgs = 2; $ M6 L: J* b# V, _$ b dp2.rgdispidNamedArgs = NULL;4 P7 u+ z. v! b7 h: C) |! _
dp2.cNamedArgs = 0;! c+ K; d' H( V2 M. Z4 o! C8 o
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var.vt = VT_EMPTY; % _- @) ?# C) X7 g* {1 h; H" C! } l
// Call IDispatch::Invoke() ^, t7 j5 P b5 P8 \& Q5 u4 f* K9 r: \
hr = m_pDisp->Invoke( 5 L. B* u( K) H requestID,, I O: Y4 R' {; q4 k* z. O
IID_NULL, + g5 Z( y$ S& C# }+ `4 y& V2 l LOCALE_SYSTEM_DEFAULT,5 Q4 c6 s' h* \$ _! X+ k2 T+ x
DISPATCH_METHOD, $ I% p q/ d+ B+ q, r, B &dp2, " |. G: b9 a! l$ l+ T. w- } &var,/ ?7 D% i0 x: ?3 ?2 }) N
&ei,; G+ T2 s6 _5 W5 n. C" F
&uiErr);6 ]" v7 k2 X! a( Z7 {! Q& d, K: W
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SysFreeString(topicStr);4 ^3 J+ C2 W0 ^4 R3 a
SysFreeString(itemStr);& e9 ? I/ P' Y% G
请问该程序是获得extend里面的哪个值?, r: f: w' A; G; Q1 h
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????