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:: T7 i) b) D) e. J2 q: h8 R
Name = (WCHAR *) L"Poke";3 U" K% C. L9 y! S }" t9 D7 I& d
6 ^% l0 S' l |, O) V hr = m_pDisp->GetIDsOfNames ( + x' b( k- W: U( ]- w IID_NULL, // reserved 8 t& _, T; s" e, P; H) e &Name, // Array of names to get IDs for& h3 u2 s# O, {" k5 s* i
1, // # of names in the array( A2 w5 Z( \# B& w% `
LOCALE_SYSTEM_DEFAULT, // System locale# h" B1 s8 P$ i3 @+ b( h/ J
&pokeID); // Array of IDs to fill on output; _9 P9 {# h7 i! m, G
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if (hr) 9 R% U# m. x7 { {5 A3 g) F, \% p% ^
MessageBox ("Get Poke Unsuccessful"); - b0 Y Y+ L. \- e return; $ A, N) j3 U4 L! @5 M& s/ T& G } ' K8 _$ \$ s8 L% Y" o' i% W, D2 f! f5 R/ x$ x6 Y
/**************************传递数据给extend**************************************/( H8 t8 S9 \4 D6 g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 I$ c; O& K; i/ w2 U. S [ {8 z
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valueStr = SysAllocString((WCHAR *) L"1232");8 C. D. Z% f! j9 \" ^, }
VariantInit(&pokeVariant[0]); 2 l- w. a3 Q* ^: m3 ]0 S# @
pokeVariant[0].vt = VT_BSTR;6 |3 Y! O H6 E9 g% k# @) k
pokeVariant[0].bstrVal = valueStr; + r0 Y6 X2 F4 C4 C: e$ z2 W 5 K9 r# R; b$ K( ~9 V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ I: p) b: R- b& |
VariantInit(&pokeVariant[1]); 4 U5 O2 ]: R; h. M; r: B+ ~% F: X0 ] pokeVariant[1].vt = VT_BSTR; 8 Q* C% }; @* D0 y, I pokeVariant[1].bstrVal = itemStr; d2 B, Q+ M8 y! H
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topicStr = SysAllocString((WCHAR *) L"system"); & b1 v% s: ^. g, [6 Y, f0 {! E VariantInit(&pokeVariant[2]); # D/ T& D* U$ ?
pokeVariant[2].vt = VT_BSTR; 6 G1 P/ _, b' y* w pokeVariant[2].bstrVal = topicStr;0 ^3 q/ S6 @7 U) a4 Y, D7 J5 m( s
4 @/ O& Y% t+ J! x: d// Set the DISPPARAMS structure that holds the variant.2 h3 E# O# T7 T8 e
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dp.rgvarg = pokeVariant; ( a1 p/ G7 J& {3 [8 M d: O9 }9 ^ dp.cArgs = 3;9 d* V" P" {+ K; R
dp.rgdispidNamedArgs = NULL; 9 v6 r2 f8 N) t1 N9 G3 Y dp.cNamedArgs = 0;' t0 z# y+ p/ x! ~! h8 W0 f, M, F
5 f3 Z ~% u% h// Call IDispatch::Invoke()+ x/ l% Q& N2 i8 b7 |/ d! ~8 r
) K2 b: n! u8 O. p1 |8 y hr = m_pDisp->Invoke(! S* H' |. O$ h. I
pokeID,6 ]: F8 q' x4 @6 P: A
IID_NULL, - X+ L0 K# ]6 ? LOCALE_SYSTEM_DEFAULT,: Y$ P7 w) G0 ^* R6 u
DISPATCH_METHOD, # G+ F' |0 F" w/ `0 O1 A' H( k &dp, ; w( c) F* {' s; d0 D$ r NULL, 9 n* f, ^4 d7 b; f0 N &ei,* y) B' h& t& V! ^; U% I0 G
&uiErr); 6 ], B6 w$ N: I9 Q ) `" H* m2 |- ]" ]# H3 n SysFreeString(topicStr);# Y# H* g. U) L4 R; ^; F2 R
SysFreeString(itemStr); 0 m5 J3 g% K/ @6 r SysFreeString(valueStr);% t1 ^9 C! X7 S! K8 U; J2 p) a
1 ?7 R/ _9 a' @+ P; L, A$ R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??? . \9 o! _9 X' C' |8 M' n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???? ) K$ T: ` a* y4 a$ Y- S( I1 u: Q4 L8 g2 q' c/ V4 a+ o( r2 M
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2.这是request的程序 5 H( G7 Q3 z, T* x// Request a value from Extend6 W+ t8 n; e5 q+ d: s: m9 B
// 3 ?- ^9 t5 r$ n% D0 E// Initialize the variant that will hold the BSTR. Set the variant's 3 {; R# u/ `* c, a// type flag to indicate the fact that this variant holds a BSTR. Place the T+ `( y! o8 U2 |% G- u4 w2 B
// BSTR into the variant structure. * \- C9 v1 v _1 \ 8 K! A* D6 @ Z D4 s1 h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 D# E& Z# _4 @7 l& v# y4 a* v 9 ~$ d- W$ t- e" D+ h3 c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( y9 y- T. K; m c3 l0 B VariantInit(&requestVariant[0]); ! H* P! [/ W9 k2 m' ~! ?* k- x
requestVariant[0].vt = VT_BSTR; - b+ n4 [( o0 s, ? requestVariant[0].bstrVal = itemStr; " |; W0 U) ?* L4 v P # u. a: t6 w) \( x2 R topicStr = SysAllocString((WCHAR *) L"system"); 2 p. D- `9 W$ V( j" P VariantInit(&requestVariant[1]); 8 R% R. @) T/ o
requestVariant[1].vt = VT_BSTR;" J; G- Q' }; n; |6 q* O0 j
requestVariant[1].bstrVal = topicStr;' F9 ]) y9 y$ @1 z; w; [0 X
3 ^# ?. \2 h; p: i) k. s// Set the DISPPARAMS structure that holds the variant.. S: \7 z3 \% L) R+ I
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dp2.rgvarg = requestVariant; ( d% H+ x9 v+ _% d$ |& w dp2.cArgs = 2; 0 o7 S2 {! X- I2 Y& i. w dp2.rgdispidNamedArgs = NULL; 4 y# r3 \ X' G; K dp2.cNamedArgs = 0; % B; C, l) H( E0 R$ h# Y; Q' ~5 m3 r. R( ~
var.vt = VT_EMPTY;4 f( m! Y6 s# V7 E: m
5 _; o' {: L5 }$ U# v5 T3 H// Call IDispatch::Invoke()/ n. _" z3 c. u, @1 p: u. M2 L
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hr = m_pDisp->Invoke(5 Z- K# _4 h' b2 ?0 Q
requestID,3 a9 F" f, E5 ~& S8 F) |
IID_NULL, . Q* T: G0 }! p& j w4 ~9 S7 ^ LOCALE_SYSTEM_DEFAULT, / M4 D1 ?* K, m, R6 }1 A' T& E DISPATCH_METHOD,' ^$ F" U2 p6 v3 J5 Q5 V
&dp2, 8 Z& i' K! X6 E &var, ; w+ {' S6 X; h2 Z& s8 p+ P &ei,4 k+ l5 \& w# F/ G$ O* u5 t2 T5 m
&uiErr); , p" {1 G k2 `9 b 2 k1 \# j) z5 U( E9 [) y SysFreeString(topicStr);) Y! m# i% F' @! J# c. \
SysFreeString(itemStr); & _" M) w7 v x6 m9 F: s8 ~请问该程序是获得extend里面的哪个值? 9 J! B, k& Q7 {* @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????