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:2 K1 t: m; G+ c. {
Name = (WCHAR *) L"Poke";. A' M! M% g- j$ L I9 I! v* o
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hr = m_pDisp->GetIDsOfNames ( 1 Q$ a {! I2 I" Q IID_NULL, // reserved 6 z, x$ s/ S3 _) J" k) a. y &Name, // Array of names to get IDs for. b8 o+ l( B( S' T0 f
1, // # of names in the array6 q! g& c+ H# ^7 b
LOCALE_SYSTEM_DEFAULT, // System locale + f# @+ c6 R( `4 ^ &pokeID); // Array of IDs to fill on output S) A2 O, |! ?) I
6 E& m0 c; M1 \: G+ O2 ^) {7 N if (hr)& ~$ H5 \" d6 \4 Q
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MessageBox ("Get Poke Unsuccessful");8 L) j$ c% g, h5 C* c( g1 `: }
return; 4 @; T; U/ o4 M4 Y$ @ }+ ~3 H* Z! J, B
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/**************************传递数据给extend**************************************/& y9 e# p# o; B+ n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ z. @( ^4 k3 n( j) k. j. c, j
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valueStr = SysAllocString((WCHAR *) L"1232");1 \2 P4 l# w7 P5 O( @ x1 w
VariantInit(&pokeVariant[0]); - W( a8 ~7 x/ [5 Z5 Z pokeVariant[0].vt = VT_BSTR;2 N( p6 L, I1 U# D
pokeVariant[0].bstrVal = valueStr; & H( o# E1 n8 ~) ^& d 3 X/ P4 ^ T# N4 i) u; @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 n/ Q( ~! a1 w
VariantInit(&pokeVariant[1]); ( i0 K# v7 Z6 P* v pokeVariant[1].vt = VT_BSTR;" h- x- f6 \8 d
pokeVariant[1].bstrVal = itemStr; 9 G$ L" Q2 q4 X* F ' I% c7 v1 {; ]/ _4 {+ o. p, k1 O9 ] topicStr = SysAllocString((WCHAR *) L"system");7 m$ D, P0 T5 C3 k( d- }' r
VariantInit(&pokeVariant[2]); : K1 j8 M! x7 }5 S
pokeVariant[2].vt = VT_BSTR;* b3 W2 \' \4 `" L. _
pokeVariant[2].bstrVal = topicStr;% |8 u5 R- M; `3 j; Z) u7 d
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// Set the DISPPARAMS structure that holds the variant.0 N9 J6 J; i. ` F0 G$ G: i
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dp.rgvarg = pokeVariant;, B N9 }6 b7 H$ [( A
dp.cArgs = 3; 7 I; I5 G! f6 a dp.rgdispidNamedArgs = NULL;2 g! k" o1 W9 }$ s+ w
dp.cNamedArgs = 0;! E9 Z/ ?2 E( @
) Q: c% r. \7 O// Call IDispatch::Invoke() . e% ?( P+ H! s. U- ]4 K ) V$ M, D* c, s/ q. s. v. O2 e, n, | hr = m_pDisp->Invoke(8 t$ g! t" f* b( D) E0 C9 _
pokeID,0 }; S8 d3 o3 _: h1 j
IID_NULL, + j ]4 {) B! K. g LOCALE_SYSTEM_DEFAULT, 1 D; ^7 ?: Y' }0 v6 w+ c0 @) s DISPATCH_METHOD, 5 I9 f+ s- E; B& d0 r &dp, 9 h0 e" K$ {- @8 Y, r NULL, d/ L2 ] v: A" t
&ei, 9 G& S, H: \' l) U H; X &uiErr); ; G0 c. I1 v. k+ q6 E 3 u( v7 V' F$ N# {% z0 L) h2 t: m* { SysFreeString(topicStr); 8 z7 |2 O% E% u9 A0 F SysFreeString(itemStr);# V8 k& z3 H8 F) J& g( Y
SysFreeString(valueStr);; ^3 e" T- q% K% A. Z1 Q3 J
$ y7 }: O M. e# C7 @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??? n! s0 _1 K* X1 O$ v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- L( J1 {5 w% D
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2.这是request的程序1 A0 U; {& e( Y+ n2 g/ f* L
// Request a value from Extend : s) b. U' J3 H* D// 0 Q: x% L7 q7 x' S8 L/ M// Initialize the variant that will hold the BSTR. Set the variant's7 F0 f; i; Q; U* o
// type flag to indicate the fact that this variant holds a BSTR. Place the! z. a, ]8 v! ^& D( H8 F0 F
// BSTR into the variant structure. , T9 i6 Q4 f* a4 ~, t( Z! N, P, x; W7 ~4 r( C: h3 n
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" _1 v& U% {5 S6 o
2 G( t; N; I1 v( H! Y, p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* F" u" l7 `+ h: U- w+ r8 `
VariantInit(&requestVariant[0]); 2 r- P# E' T6 g& i requestVariant[0].vt = VT_BSTR;( ~# k% O* i, D6 _
requestVariant[0].bstrVal = itemStr; , T6 ?: D* b/ L% o7 h2 d7 J 3 J* {' q: c' B2 [) L topicStr = SysAllocString((WCHAR *) L"system");1 I, b4 F& o" {! z/ J5 a
VariantInit(&requestVariant[1]); 5 g1 _4 O n8 c" R2 @+ g requestVariant[1].vt = VT_BSTR; 7 e! L) U& S+ ?+ U' n5 `& q requestVariant[1].bstrVal = topicStr;5 {4 w* h v0 Y9 S4 @; j4 K; l
* D- `) |. @) V// Set the DISPPARAMS structure that holds the variant. ! K' Z) r* e) d' }% \( n9 v5 J2 E8 c3 D# f
dp2.rgvarg = requestVariant; 8 s# ?! X" K8 c0 W' l dp2.cArgs = 2; + K' i9 `) b, A( H. d3 g5 e9 h dp2.rgdispidNamedArgs = NULL; / l1 U5 L( r6 k) u/ S6 w dp2.cNamedArgs = 0; 6 o8 @4 ~7 n3 Q: D+ w/ v( m7 D
var.vt = VT_EMPTY;% }: |( J J6 ~$ [# A* w: T
4 F) t$ t, `+ I) c// Call IDispatch::Invoke()5 ]9 F; a( W, f9 s' s
c. D; S$ w! \# f hr = m_pDisp->Invoke(+ I' W' B# v3 x3 y' G, S
requestID, # H o$ B4 d/ @! ~' a0 v IID_NULL, {" S) c' m& F LOCALE_SYSTEM_DEFAULT,9 L5 J4 T, Z8 v! Q
DISPATCH_METHOD,. m. A( }) t6 t) C0 ? o
&dp2, ( T8 V; W, d! l: A &var,2 O- F5 N2 }& Q$ M
&ei,0 I0 L' q0 f3 o9 T* h) Z1 b% Q
&uiErr); * i) w- b( w6 p & _# X5 S3 c& O2 P8 ^ SysFreeString(topicStr); 9 i$ `) M6 t. N. V. \ SysFreeString(itemStr);' f& h" \" f# N' n7 j
请问该程序是获得extend里面的哪个值?7 ~% v, N/ n; x% y6 l1 i
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????