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:8 Q1 Q& R; X( V
Name = (WCHAR *) L"Poke"; 7 C$ |0 b! }$ y8 r6 K* V6 n3 B6 ~& I 2 N0 z; B: Q9 ^. q0 {" J1 ^5 b2 i hr = m_pDisp->GetIDsOfNames ( & @" I" {5 ]6 \8 W4 k IID_NULL, // reserved! m. Q3 }. |' U# [9 `
&Name, // Array of names to get IDs for& n4 |0 `" P2 X8 x1 G9 G, O
1, // # of names in the array6 `2 W5 @+ J5 F' ~
LOCALE_SYSTEM_DEFAULT, // System locale % K6 ]/ z; C5 d& T2 y6 [1 L &pokeID); // Array of IDs to fill on output* Q5 o% G$ \- b: S
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if (hr)- |# y4 I8 b% q
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MessageBox ("Get Poke Unsuccessful");" @# N$ j8 l# |. u# {' h+ |
return; # x5 \: F1 I. I6 @$ ^6 ^: H! z6 m } 6 w1 H w- o! c1 Y8 [' w! S . `, F J6 }( u2 U/**************************传递数据给extend**************************************/ # e5 }* k2 V# |! U pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 O3 P+ A1 V8 i6 u* P
0 [) C( A; x% Z, p5 m valueStr = SysAllocString((WCHAR *) L"1232");. {: b E' e m9 P+ `7 \
VariantInit(&pokeVariant[0]); 0 `' C3 q: x, n( x0 A4 w pokeVariant[0].vt = VT_BSTR; 7 g; X( G8 ^ U7 v pokeVariant[0].bstrVal = valueStr; : N0 z Y& Z- o3 [# s5 k- [# I% J$ a' t7 l( f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % ^+ k; H, Y q$ m9 c& L$ m* i VariantInit(&pokeVariant[1]); / N& F0 ~" d9 x% ?( g6 d) F
pokeVariant[1].vt = VT_BSTR; 8 a3 l4 Z; Z+ ^ pokeVariant[1].bstrVal = itemStr;5 V6 ~9 P. K- t7 A4 [) A
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topicStr = SysAllocString((WCHAR *) L"system"); 4 r1 L2 D* ^: {6 ]9 W# e3 i VariantInit(&pokeVariant[2]); + C8 ^4 B$ v, z3 D
pokeVariant[2].vt = VT_BSTR;. q# |7 p& R% {# o
pokeVariant[2].bstrVal = topicStr; $ F& o, Z& b, |& v3 k) {" S7 R' `1 I% J
// Set the DISPPARAMS structure that holds the variant. / Y& C( [/ E! o o: m! O& t6 ?5 y, r4 @' |* _9 Z% }' Q8 y
dp.rgvarg = pokeVariant;% o2 ]# J& e m h( u1 r$ Y
dp.cArgs = 3; / C7 E1 N1 R& Z, x' I8 z dp.rgdispidNamedArgs = NULL; 5 O( s9 G/ n& S6 d dp.cNamedArgs = 0;# Z+ z! ?! T4 ]8 T0 f+ D! n
! b0 X" s+ ]$ W2 @! w. u' ^// Call IDispatch::Invoke() # m% ~- X. g- K3 d6 g2 Z 4 s7 r; h& ?5 z; j. z/ A hr = m_pDisp->Invoke( 1 D7 m7 m8 r6 r H: T( E* z pokeID,& h+ X- `3 v( U* {+ t( X% I& e
IID_NULL,9 D7 D( B E+ ?6 ^
LOCALE_SYSTEM_DEFAULT, 8 K# }7 ~) i) D6 W2 Z DISPATCH_METHOD, 2 d s G+ ]0 Z" N p &dp,7 c/ F$ i2 g0 ]4 Q& R
NULL,0 Z7 v4 M. e1 J4 G6 T# ^
&ei, ( P, Z% y* d7 t, O- L6 l# ` &uiErr); & J d. f* Y. n2 G: m; H% C6 c3 G6 ?" o" }/ A
SysFreeString(topicStr); W% t2 Y. ?5 ?
SysFreeString(itemStr); 0 ^0 |5 D5 ]: {/ r d. V9 e SysFreeString(valueStr); ' l4 U. a" M( K1 A8 Q- b8 Q0 n I3 N: [4 v7 E3 l. B' B1 d- a3 E3 [% M; [
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???+ t8 E% r5 [, e
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???? 9 [( s: o3 l A" d: K9 ^& ?% F+ U( h6 ~5 b7 L# _/ R- u6 |
, C+ j1 @, P! X' c0 M* g }2.这是request的程序# F1 y9 [7 U0 q# e9 @+ T
// Request a value from Extend' j5 o" @. i2 N5 n& e/ W! h: R/ f
//: G U5 E' K! n
// Initialize the variant that will hold the BSTR. Set the variant's - C) i) w- z" P9 |" t5 Q// type flag to indicate the fact that this variant holds a BSTR. Place the E9 m$ P9 K1 C; W; S( D% D+ Q8 }// BSTR into the variant structure. $ ^: ]* n1 J& }) C W2 [* {' ]/ g# q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- v% D4 s% h( }- o- b
' h# o' G$ V( x/ V1 o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% U$ Y3 H- p1 z# y7 V6 Q
VariantInit(&requestVariant[0]); 4 s: A! j7 r, J- ?' z, V; [$ l
requestVariant[0].vt = VT_BSTR;1 O# b2 |4 H1 g: T6 s
requestVariant[0].bstrVal = itemStr; ( j+ M/ ~' c* J% ]3 w 4 n% A# ~) P7 U' r topicStr = SysAllocString((WCHAR *) L"system"); + X: Z8 y1 r7 g' V i1 { VariantInit(&requestVariant[1]); D- ^1 S4 X1 I+ f$ i3 {
requestVariant[1].vt = VT_BSTR; ) T# t, g2 d' x3 N* a C* s requestVariant[1].bstrVal = topicStr;4 R8 x( V& N8 L" b" P
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// Set the DISPPARAMS structure that holds the variant. ' u* n( F. w- w7 B8 y4 ?: { 9 _' R- }/ j) k% p' J! {( {* K/ S& W dp2.rgvarg = requestVariant; $ K9 V. T" q' `! [2 i# s6 k7 k dp2.cArgs = 2;* f" t, |9 n& ~. I% H
dp2.rgdispidNamedArgs = NULL; ' U! U) U$ t K& `' k0 J dp2.cNamedArgs = 0;( p1 @- l4 M' X2 x) t0 r' k7 Z0 H* Y
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var.vt = VT_EMPTY;" b' U9 N6 O% B. U
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// Call IDispatch::Invoke() , ~ i& B5 E0 u1 W2 E a3 V/ f# [ 5 K4 D2 v5 E6 R8 M7 a! D hr = m_pDisp->Invoke( 2 \% \ z: _0 ~ requestID,- O, z3 N& w: o0 w. t
IID_NULL,# W# u4 P0 ?( }' K
LOCALE_SYSTEM_DEFAULT,) |2 b+ t8 ?, R% Q% ]) ^1 @ j
DISPATCH_METHOD, 3 m3 t9 r. ~" f4 S: Y0 K &dp2, 5 w7 p/ i0 g0 {- ?1 D( } &var, , Z. U; s9 E, B8 x* j* s &ei, ( O: P6 A- t6 D &uiErr);5 I% w& t- |: m. g3 x
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SysFreeString(topicStr);( Y2 q0 N# U: K- k& Q# @! |2 Y
SysFreeString(itemStr);5 C1 o* q- T& _% ]0 q
请问该程序是获得extend里面的哪个值? ' v* q5 d- _" `3 K1 U7 u9 |" _" \: d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????