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: $ K! `$ ?2 t% ]3 T7 ^Name = (WCHAR *) L"Poke";2 H& |) T: G) I! S' J4 Z. A! A% F4 {2 U1 l
' S& g9 c) `7 n" B# g- ]& K" d( l: a hr = m_pDisp->GetIDsOfNames (7 J) ]- }# X; A a* t
IID_NULL, // reserved- n! d2 ?% |/ L& q& V
&Name, // Array of names to get IDs for" T& M9 m+ e, `! O9 b( o' Y
1, // # of names in the array 1 b3 J2 n$ p- j0 W T. N LOCALE_SYSTEM_DEFAULT, // System locale 0 P! b, v6 N% W8 I. g &pokeID); // Array of IDs to fill on output & [4 @; n4 ^8 V8 ~0 g5 D# o ; j0 K# n3 T8 i5 W& \; ] if (hr) ( w T- n! R& c% Z. g3 m- y { * x+ s1 C: u. c1 J6 d) Y! p4 e MessageBox ("Get Poke Unsuccessful"); 0 G5 g: \$ S9 r; G$ C, H return;0 W% U0 A R6 w2 I7 T0 d
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7 k' K, @$ I. h3 ~+ _/**************************传递数据给extend**************************************/ ) T' n! f9 {" s& P4 E; U' T' m" ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ s$ ]6 z5 a. _
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valueStr = SysAllocString((WCHAR *) L"1232");8 z6 e! `* U( C" W& B( y8 F
VariantInit(&pokeVariant[0]); $ }# [. w! t/ u7 m. X+ X& [! {4 N" l p
pokeVariant[0].vt = VT_BSTR;& K: |- z4 B* x, L) ?
pokeVariant[0].bstrVal = valueStr; " @1 w1 P- @- B- I, M& } & S; n2 |% {7 q+ M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 U! k" v3 D0 S5 V4 d' K
VariantInit(&pokeVariant[1]); 5 c5 a1 q0 Z% S( m0 b
pokeVariant[1].vt = VT_BSTR;9 e8 K7 U+ j& b, g5 C& K0 @
pokeVariant[1].bstrVal = itemStr; ; W n# v$ r8 }) |: I5 k * D) T4 Q- Q+ Z% `$ ?. f m, o topicStr = SysAllocString((WCHAR *) L"system"); 6 C& C h: |5 }9 @- d$ e VariantInit(&pokeVariant[2]); 5 S1 K* k/ T e$ M pokeVariant[2].vt = VT_BSTR;7 f0 c3 Z, R0 ] d; D) \! Q3 O
pokeVariant[2].bstrVal = topicStr; 9 f" N6 u* z3 h5 Z1 z: b + D. `" ~% u, Q/ i* [8 l: z1 e// Set the DISPPARAMS structure that holds the variant." f% @3 @* s4 n0 h5 j
4 t" h+ t8 V: k. y4 q$ ]" | dp.rgvarg = pokeVariant; 5 O5 x8 I- T! `% W/ T dp.cArgs = 3;1 ]' _# P/ R* |7 R7 o1 Z3 {, ^
dp.rgdispidNamedArgs = NULL; 0 W) U% y& W6 w2 C dp.cNamedArgs = 0; : {/ N* z/ B o- D8 l6 |8 t8 ]9 p) h& }( j5 g7 F7 t$ R
// Call IDispatch::Invoke() n& F7 H2 p: H R' \
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hr = m_pDisp->Invoke( 2 n2 i0 L% v6 d( C pokeID,1 b' M. |1 ?+ x0 h& q0 }
IID_NULL, / s1 q2 H$ l+ Y& A% c LOCALE_SYSTEM_DEFAULT,) a t$ u% c0 h9 S
DISPATCH_METHOD, 7 N' \( ^% K8 [/ U9 a8 v# h &dp,- |- O$ p4 B6 R* x) N
NULL, , ^9 U* ], u) }2 b, Z &ei, 1 p. L+ D0 Y9 u0 J8 T& N8 N &uiErr); ( W+ g0 c* q8 D - z4 U) U$ b4 Z7 f* c# J: | ? SysFreeString(topicStr);0 k6 A) I% g0 m6 M, u1 a3 D7 W
SysFreeString(itemStr); + b) T/ u+ Z. {% |( X' R* m; A. U SysFreeString(valueStr); ' I; E; ^2 `. C0 U4 N: E i% ]0 t% @) B* S+ v3 [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???8 g+ {) O7 c+ P3 ]' 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????$ A) i6 l' v$ {6 x2 ~( \8 Y
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2.这是request的程序 5 I& P, L2 `3 W& R) t7 r! _0 X; g// Request a value from Extend# j& k+ p# K" N0 o) P( e: q) I
// - x: F9 Z7 ?. F( E2 P0 e* k8 T// Initialize the variant that will hold the BSTR. Set the variant's2 w# R8 v3 _3 c
// type flag to indicate the fact that this variant holds a BSTR. Place the0 q- t- ~! o/ V: ^1 }3 I
// BSTR into the variant structure. $ q& s7 f5 J! \ ) ^3 C* ~, Q4 S7 z6 S* e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ A/ A4 Q3 i6 p. ?2 P ' V3 Q2 C, }* ^/ l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ J7 N3 |" b1 p. j7 k
VariantInit(&requestVariant[0]); $ w/ E7 A6 ?$ P$ ?) ^ requestVariant[0].vt = VT_BSTR; 6 P" [- Y4 t9 q! A% l requestVariant[0].bstrVal = itemStr; " \+ {) F% W& c4 ^5 g* K$ f _1 z8 R, T. N$ ~; h, R$ y
topicStr = SysAllocString((WCHAR *) L"system"); ' F B$ g$ G4 o# c% L! G; I8 q VariantInit(&requestVariant[1]); 2 R3 N( ]) D& J2 O5 P requestVariant[1].vt = VT_BSTR; ) V3 q3 z1 B5 ~& l3 k- g requestVariant[1].bstrVal = topicStr; , i/ o5 ]; H: `7 Z- T* L$ z g5 {6 U
// Set the DISPPARAMS structure that holds the variant. & L6 a& L* p$ ~7 e# S/ _- u# X" H7 G) w7 T [0 b1 U" z4 M& U
dp2.rgvarg = requestVariant; ) \. }& b: k0 S* z$ i, x( \ dp2.cArgs = 2;' y' ?& a M. W T( e' J
dp2.rgdispidNamedArgs = NULL; 0 b8 y7 G- R2 |; m+ J$ ~ dp2.cNamedArgs = 0; 0 _" c; ^: j* t- B: k: J C, y0 T) k
var.vt = VT_EMPTY; 3 h2 T, r, H6 m8 i, V( f% p ) k1 T/ c& G3 O" H$ N// Call IDispatch::Invoke()# m! J9 ^7 J7 [% i
& a8 s3 [% ?$ m% x a* u: \9 x hr = m_pDisp->Invoke( # M, P- I$ z2 R @ requestID, 5 h! S: x: u$ b) y! G IID_NULL,; B$ v# v8 O+ P- T7 c: T& d) K
LOCALE_SYSTEM_DEFAULT, 4 ^8 |; c* S% d DISPATCH_METHOD," Z2 W- c7 ?5 o- |! s0 L9 H
&dp2,6 }6 R: y% Y' H
&var,$ c" w" i& u. i7 x
&ei,. y) d! ]1 s3 _+ n5 t0 s y# O
&uiErr);7 @$ U. d5 f" Q9 j: F
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SysFreeString(topicStr);" i5 c* c) ]( N1 l/ u& I
SysFreeString(itemStr); 5 L$ H( a7 X/ z& @0 A( q+ A0 z请问该程序是获得extend里面的哪个值? . {. V1 _8 O6 `' K' A P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????