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: m* K# N0 e& r$ Z6 m5 j
Name = (WCHAR *) L"Poke"; y$ x9 m/ R7 F* X8 _$ S0 Y9 N . B3 N( ]* \( d5 q% H4 _
hr = m_pDisp->GetIDsOfNames () P: ]2 w% Z' U. ], w! d5 M
IID_NULL, // reserved$ j8 q: |: @4 A8 D$ A$ T1 T5 F
&Name, // Array of names to get IDs for% K/ W* c |2 ?
1, // # of names in the array, S/ ~" [# u5 n" K9 k. V; R, P
LOCALE_SYSTEM_DEFAULT, // System locale - R0 g M: c! B3 `6 a &pokeID); // Array of IDs to fill on output % d9 }5 a8 y4 P$ ^: {: f) a7 I4 w 5 ~. U, b* T+ N( \6 [
if (hr)8 x% V: L( H: x3 n/ L1 a
{ 9 Q: Y3 T, }: Z' o! E4 M MessageBox ("Get Poke Unsuccessful");& h8 [" l# P& `/ X1 Y
return;( y" i# E0 P2 d! V+ k) E
} 9 ~3 z' N- f, H* F# q \7 C 2 v; J2 d) B, G: D/**************************传递数据给extend**************************************/4 U! Q+ J: d5 l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; J. G: B5 Q4 [6 D* S
7 q* @ i: c1 d6 e/ F% W# }- C valueStr = SysAllocString((WCHAR *) L"1232"); & W& O' |7 r* s9 y- C# R; Y VariantInit(&pokeVariant[0]); - {# o5 F. {' T' u) m! ? pokeVariant[0].vt = VT_BSTR; : b' n& A# g" s7 v; u6 @. A pokeVariant[0].bstrVal = valueStr;( q* ~: }* ?3 `% I6 D# ^6 c# h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % ]" m# C7 B% s VariantInit(&pokeVariant[1]); " z! |, q" n( X& z$ n; U pokeVariant[1].vt = VT_BSTR; ( n4 E- G) H( s% j1 @ pokeVariant[1].bstrVal = itemStr; * N' P2 b$ x4 [6 ?7 u) {: l' m" ?' q1 t
topicStr = SysAllocString((WCHAR *) L"system");, n& B/ q/ a9 D' m1 Z
VariantInit(&pokeVariant[2]); 8 n; f$ {" u1 o, e% I
pokeVariant[2].vt = VT_BSTR;( c" U- [* Z& j. D! g
pokeVariant[2].bstrVal = topicStr;6 c% I' Q, S# Y8 Z8 v
( T0 O# L5 l9 j2 c+ U3 B1 ?: ~; L// Set the DISPPARAMS structure that holds the variant.4 }) a% Y4 @* \; g. s# z w3 T2 G
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dp.rgvarg = pokeVariant; ; x6 |, F" i1 d. r1 {' M( H' R$ }" F dp.cArgs = 3; * p% V9 U R1 i dp.rgdispidNamedArgs = NULL; X: P! d; M5 n R& }* e4 a dp.cNamedArgs = 0; $ { O7 Y$ r+ X& I2 z% y - c, m( h- N$ \/ d7 A7 `// Call IDispatch::Invoke()& D: _# @+ e6 z, {6 K1 u X
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hr = m_pDisp->Invoke(8 o7 o. N4 u" }$ A1 U, C3 c& m
pokeID,3 j# h+ q* N. n {7 \& C W
IID_NULL,+ X7 Y" s9 O- D& b8 y
LOCALE_SYSTEM_DEFAULT,$ P3 d2 _% _, O4 Z+ [6 {+ B- V
DISPATCH_METHOD, 2 {; E- }# e! M) C7 g9 M; B: T &dp, 2 t/ S1 ~- z8 |# i" {/ _8 I NULL, P# C% Y/ t1 h- h, ~0 J! U' Z &ei, . a* d* Q& m% O) t6 } &uiErr); 8 w4 n) u6 ^7 \6 K' ]9 p0 b - }2 Z% Y- H3 U* X3 s3 Y SysFreeString(topicStr); # A$ X: M: i$ D) S% Z% I: e SysFreeString(itemStr);/ |6 N, q4 c3 T- v4 V7 {/ n8 x3 ]
SysFreeString(valueStr); ( y7 R1 X) O/ Q9 Y: } , a+ v9 |6 O; j( D* S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??? & P7 J1 X% ]( F( s' {9 j2 f; 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????$ I0 O, V8 l' e) Q$ e+ o3 g2 d, u
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2.这是request的程序1 s+ }# n: C5 ?! F
// Request a value from Extend $ s; e" A6 z. \# |9 S1 a// ' z/ G' i' f+ t1 d( s i' O0 X// Initialize the variant that will hold the BSTR. Set the variant's , K% g0 z) n" a. y7 |# j// type flag to indicate the fact that this variant holds a BSTR. Place the# s. y u* ^9 _. r8 w( l# U
// BSTR into the variant structure. ; R$ l: U$ P7 W5 ~ / l8 E( m5 \' |! Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ h o% M( l* p* q