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 {) x" i" v; ? {0 E* q2 o
Name = (WCHAR *) L"Poke"; ; u. o8 z/ V: m ! I% M7 o" Q) {' a; { m hr = m_pDisp->GetIDsOfNames ( : B& P/ z8 ^, k5 z( \- i0 ] IID_NULL, // reserved 2 m0 O3 A' P x9 h8 c# U &Name, // Array of names to get IDs for ! p, q+ L- @% z+ ?# p, I5 \) @ 1, // # of names in the array! L# i& Q( C4 ^5 b
LOCALE_SYSTEM_DEFAULT, // System locale ; n& |# r" X2 I0 ]! }* d5 K &pokeID); // Array of IDs to fill on output # W, c# d( K- k7 `: u , ? j+ V- G4 @) J% u if (hr) ; ?9 j9 T6 [' r+ ]6 ]' D W { 8 S0 k$ I* B2 a7 c* Q9 n% d# G3 i MessageBox ("Get Poke Unsuccessful");1 e2 n3 @0 n6 `! M1 w
return; 8 n! n' a0 r# r } ) T6 z9 E2 K; T" B0 E* C: ]0 s! [+ L+ z" X6 N
/**************************传递数据给extend**************************************/ 7 B/ A$ o* v, A. F- {" v7 j7 k. v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # C4 u U8 O2 ] 3 [8 ^2 k1 u9 W$ `5 e
valueStr = SysAllocString((WCHAR *) L"1232"); . _# f8 ^$ O8 z! @ VariantInit(&pokeVariant[0]); 2 b/ z0 K) X$ Q) x# V
pokeVariant[0].vt = VT_BSTR; 4 `: O2 m& s# b6 |' s5 F pokeVariant[0].bstrVal = valueStr;" f: J5 M# s; G* s$ F; o4 i! ]
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; |% A( I: a- j4 W8 @
VariantInit(&pokeVariant[1]); ; t! C& {( J) c4 w0 [! |2 R$ U
pokeVariant[1].vt = VT_BSTR; : p2 ^% A/ T& E; v$ A" h% N. Y! v pokeVariant[1].bstrVal = itemStr; , A; }; Z' d# U1 |/ g% w2 ~) \% v9 i0 {1 x3 ]- u; C; q* G
topicStr = SysAllocString((WCHAR *) L"system"); & K. P5 b }% L7 _' I- Y VariantInit(&pokeVariant[2]); 0 F" Q0 l/ i5 A# r1 G9 R1 X/ b( } pokeVariant[2].vt = VT_BSTR; ' h6 \: H$ r8 E: l pokeVariant[2].bstrVal = topicStr; 8 p0 O4 o0 Q4 d. [ [8 A1 o& g. F4 N: j% Q$ h( o
// Set the DISPPARAMS structure that holds the variant.# t/ k# R2 }1 c% D3 P0 C0 s
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dp.rgvarg = pokeVariant;, F5 z8 u: a4 r0 \9 |$ _3 b
dp.cArgs = 3; 1 Y2 c" ~! F0 K dp.rgdispidNamedArgs = NULL;" i5 s( V' J; N* v. ~$ I' E" |
dp.cNamedArgs = 0; 6 c8 o1 o! e5 N+ |; W2 v& x( S7 J , \ p( Q( ^6 h2 S/ h% d// Call IDispatch::Invoke()4 t% Y, O: c' P4 A& ^9 L
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hr = m_pDisp->Invoke( 4 \2 _2 y$ K$ G# Y6 U. P pokeID, 4 }+ K0 B0 |9 y' M! ?6 B& b IID_NULL, , ^8 g8 J8 }- S7 g0 X( ]% { LOCALE_SYSTEM_DEFAULT, C8 }( |8 f& a8 t6 }6 E DISPATCH_METHOD,. @, Q, _7 h" U
&dp,3 _- v+ |" ]7 K; [( Q" @
NULL, & v2 C7 z4 H6 @ a! A+ A &ei, z9 ^$ J/ O/ t0 U &uiErr); / V$ i) ] M/ e; w$ D 8 b a* o9 \' n# I* ? SysFreeString(topicStr); & l/ n: Z' g- y% M6 @* q2 ?) R SysFreeString(itemStr);3 r3 L% y; b$ c1 w5 s! P
SysFreeString(valueStr); + f7 T9 x5 u3 g$ L; {3 z 5 | \7 B* X( i# m7 F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???; e' F9 q) r9 w
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???? , Q; i2 T8 H4 |6 T0 m8 E! j9 S) P) ]0 Y) O
9 h: u- f6 I# r. B8 I7 a2.这是request的程序 ( S- a0 d3 Z C5 G @. [// Request a value from Extend, }/ G6 r3 b$ M) n3 \! i
// / L/ V. E/ |. I) j7 U2 `: b// Initialize the variant that will hold the BSTR. Set the variant's L3 N+ W9 x# N/ Y3 |& T# T% h: T
// type flag to indicate the fact that this variant holds a BSTR. Place the 1 R: l% C3 C% G// BSTR into the variant structure. 8 C$ T+ U' O4 ]% i $ ^! d% }7 B6 Y3 H, I; F. { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 ~6 G4 S! P2 `" e2 J# V* T
& B* H$ ^' @, m* Y& w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : g& ^* O6 v S* | ` VariantInit(&requestVariant[0]); 4 g6 ~0 S; ~' ]* t' \ requestVariant[0].vt = VT_BSTR;1 [7 k* P+ B; w3 i
requestVariant[0].bstrVal = itemStr; 6 d# T; B; Z/ A5 ]+ w/ U% o% E s" }
topicStr = SysAllocString((WCHAR *) L"system");! `1 O/ a; C% X i* j( i: W7 V
VariantInit(&requestVariant[1]); 4 C2 J) E& }2 w; w& c
requestVariant[1].vt = VT_BSTR;2 z$ U+ B1 y/ e
requestVariant[1].bstrVal = topicStr;$ P0 U) R* `3 W' L
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// Set the DISPPARAMS structure that holds the variant.' |5 Z& W" r) u% k2 R6 M
: Q' f- j4 v# F dp2.rgvarg = requestVariant; - V# H: V9 W0 y/ X- ` dp2.cArgs = 2; / A. \4 \% F6 j1 M; U* o dp2.rgdispidNamedArgs = NULL; - D* j* o" \( ?% v9 A dp2.cNamedArgs = 0;8 ]& M1 W9 M, g/ r1 P7 e
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var.vt = VT_EMPTY;3 ]- j5 i1 I& O* T" m: }- _# h7 r# n