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: * z7 y4 l& m3 ~" JName = (WCHAR *) L"Poke";8 F1 M! a. F' K' a
! i3 _ k2 i ]* K$ p5 I+ Y hr = m_pDisp->GetIDsOfNames ( , f. _* S+ ^' d IID_NULL, // reserved& r( y3 E( s; W0 }) h
&Name, // Array of names to get IDs for " H% i" C, H. k0 V6 B, c3 Z4 V& [ 1, // # of names in the array % D' w# T3 @) x4 K2 v f. L LOCALE_SYSTEM_DEFAULT, // System locale % p* V% S1 o" W9 h &pokeID); // Array of IDs to fill on output , h. i% s5 G* e% N7 v8 v + ~, T! f6 j5 _
if (hr) @6 m$ M/ k7 p$ f7 `3 h5 `
{, b$ F1 ~8 s' L
MessageBox ("Get Poke Unsuccessful"); 5 {2 W3 h' Y( u1 ]+ X; q( ^ return;: Y: A* L4 Q6 Z0 f0 O* q
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/**************************传递数据给extend**************************************/" W/ z$ {5 e2 J1 S/ J; l% B& s2 g
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + v! W9 k7 P+ l) m1 ?9 U & J8 l" T0 d$ a9 s2 q
valueStr = SysAllocString((WCHAR *) L"1232");; j5 C* Q9 `, v0 a) s5 W' w
VariantInit(&pokeVariant[0]); 9 r6 o. b% L& \. U1 m pokeVariant[0].vt = VT_BSTR;) Y* F' T7 o9 ]: w1 e
pokeVariant[0].bstrVal = valueStr;' w) o2 b! P; {8 X
% r2 m# f4 M4 Z7 I: M5 ]2 b* b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; c7 p/ W7 |, Q! q3 L& e! p
VariantInit(&pokeVariant[1]); 3 N# ~+ E' @; ]# K& |, y
pokeVariant[1].vt = VT_BSTR; , ?* Q$ ]' u* t' h. d8 i pokeVariant[1].bstrVal = itemStr;' l, k+ l! j8 o' K2 T
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topicStr = SysAllocString((WCHAR *) L"system"); ! o. W/ b* y9 o+ d, w( S VariantInit(&pokeVariant[2]); : E5 Z# Y9 C% H
pokeVariant[2].vt = VT_BSTR; . I# x: i7 y: F& H pokeVariant[2].bstrVal = topicStr; ]0 r- g* C0 [0 e4 R4 C' Y* h" V' C5 J
// Set the DISPPARAMS structure that holds the variant.- I- n n6 ?% N8 _; \& g
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dp.rgvarg = pokeVariant;' L$ e5 a* X# z3 W
dp.cArgs = 3; * }/ Y+ u4 D; a# O9 } dp.rgdispidNamedArgs = NULL; 7 Y" b- k6 N0 ?5 M dp.cNamedArgs = 0; 0 [4 ]9 s9 o) q4 q1 t! p! K' t g
// Call IDispatch::Invoke() - l$ |: ~+ t/ z, }# d m1 S' L$ c! Z/ U) R: o F% \ hr = m_pDisp->Invoke( ) _& u, J6 ^: i2 K9 X pokeID,0 \* h1 a, z( V
IID_NULL, + Q( N4 R3 u" v4 C& }# F; \ LOCALE_SYSTEM_DEFAULT, 2 N/ E9 f1 p1 a, u% w* E DISPATCH_METHOD, & Q8 g% W! h# d l$ ~0 U &dp,9 Y) r$ Q: O7 n& Z9 S
NULL, # S# ]# j3 x* w; x1 V &ei,/ X* I% y/ P; k
&uiErr); & ]* w6 e. I5 ~: W$ e% r, m6 v: Z, _ v! t
SysFreeString(topicStr);) n# A2 L& I: h) W
SysFreeString(itemStr);# z, @& }* i( r. G5 x' f6 y* `
SysFreeString(valueStr);2 }: U. U* g2 i4 u/ x: [* ]
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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???5 m% @* U! a% m8 P6 m3 D- k
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???? 2 V6 M. L8 g8 E Y+ s1 u 1 l9 {0 f* o, o l8 y 5 l r: ^3 F3 T3 B2.这是request的程序. T/ p7 {2 P- y2 G0 ~& K% @
// Request a value from Extend 0 E4 x! G0 w3 b! z: M! {//1 w& t* w7 k' L$ p+ ~ z
// Initialize the variant that will hold the BSTR. Set the variant's : M# _+ u7 S2 g4 w2 @& h7 |// type flag to indicate the fact that this variant holds a BSTR. Place the n( N7 ?# j5 Y
// BSTR into the variant structure.( ?/ ]& p& a) O" h) B# m6 s
% ]/ [+ U* |; S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. t- B& Q$ X k8 \& U4 F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( B* f% c( [8 \4 v* F& Z
VariantInit(&requestVariant[0]); 3 Z$ M% _- i5 w requestVariant[0].vt = VT_BSTR; " y2 o0 N3 Y1 @" `- v" h requestVariant[0].bstrVal = itemStr;4 e( p; t! O4 e7 @
# w- j7 w- x3 \9 X. s) w+ f
topicStr = SysAllocString((WCHAR *) L"system"); ; v8 V: a9 i) |( W$ d VariantInit(&requestVariant[1]); + Q9 i. y6 `+ W6 P7 Y! F& U/ I8 h requestVariant[1].vt = VT_BSTR;: ~8 q- d& P9 N, x! m! D' G& U% v9 Y
requestVariant[1].bstrVal = topicStr; 9 z, @# T+ ?% T8 h) ]" v( \) S0 i1 t O5 c P8 P- e
// Set the DISPPARAMS structure that holds the variant. & b ^' x, j3 b* h ?8 k; x8 ^# G2 k; ]+ U
dp2.rgvarg = requestVariant; ( G# P! ?5 o; Z8 s- p x. { dp2.cArgs = 2;, a6 F2 C1 ~: v/ j& H8 A
dp2.rgdispidNamedArgs = NULL; / ?. t- ?* [1 B7 S( G dp2.cNamedArgs = 0;( `) E/ ~5 u' M1 u
O' A3 J* E H& ?$ v& u var.vt = VT_EMPTY; ) `2 q W* e0 q, w, y4 |1 q6 R! R% T, k
// Call IDispatch::Invoke()4 t: R# C6 \9 o$ h8 _, a. h
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hr = m_pDisp->Invoke(: c( R1 L, _1 \ X
requestID, : q* |7 Q1 W7 E/ ?* z. D: D9 t! V/ y IID_NULL, * \) r) j6 U+ d* N$ } LOCALE_SYSTEM_DEFAULT, E2 c5 q* q8 B: _# n: o: }
DISPATCH_METHOD, ! |& i* d# c5 d; y' U &dp2,6 L1 m7 l t8 U6 ], N! v. b
&var,) n. S5 c3 O0 A; A/ |. C+ v+ {
&ei, 6 L1 ^) W+ C& l ~5 r7 e &uiErr); o1 x2 @4 E3 ?
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SysFreeString(topicStr); 3 T0 g# H ^( U/ l: ?$ y+ O SysFreeString(itemStr); : _. p8 P5 J& u, \3 G请问该程序是获得extend里面的哪个值? - h7 e0 A+ X( d! d3 \; {9 c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????