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: : k" D9 X! F- U6 h U0 uName = (WCHAR *) L"Poke"; ; f3 O! B) u' b % \2 n6 ]" |& x: ?# V
hr = m_pDisp->GetIDsOfNames ( 3 [5 d! a& s' {* z0 x% f5 x IID_NULL, // reserved 8 C" h: F+ ] C: B &Name, // Array of names to get IDs for 7 {! {8 m( q9 g 1, // # of names in the array/ N0 P1 U$ j% v; Z; H
LOCALE_SYSTEM_DEFAULT, // System locale % j9 T8 J1 t# q. K% l u. J, r &pokeID); // Array of IDs to fill on output0 F7 b5 |) L! v
. G, _8 D/ O) x$ h# Z; g& m if (hr) & k- P3 ~" J {4 _( k {9 {9 a, Y' t# i) G( i4 u
MessageBox ("Get Poke Unsuccessful");) m1 H G# I- z
return; 3 {0 @) d4 s V4 X6 r/ x }7 W5 F( }& E7 I6 g0 h: E
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/**************************传递数据给extend**************************************/1 d$ n" D, h" K" `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( k' p' ?8 W% F8 ~- S8 z0 d 4 |1 z9 t% P; Y) q valueStr = SysAllocString((WCHAR *) L"1232");1 A" P4 w3 H" c# i; A9 f: w
VariantInit(&pokeVariant[0]); # p& T+ S/ N( N
pokeVariant[0].vt = VT_BSTR; / K2 U7 f8 x- E* ~ pokeVariant[0].bstrVal = valueStr;* |. R' R' t2 A0 h f$ A% P7 [8 N
8 ]0 ^9 R8 [: W2 r$ @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 B% p/ G1 Z$ U, ] VariantInit(&pokeVariant[1]); . s; i; B* V# F( R. @, g2 `) g7 f8 j6 @ pokeVariant[1].vt = VT_BSTR; 3 x7 q& {/ F9 p pokeVariant[1].bstrVal = itemStr;. e4 Z1 |" f5 t, |) H9 X
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topicStr = SysAllocString((WCHAR *) L"system");$ F; Q) R+ s H: k& I
VariantInit(&pokeVariant[2]); : ], _5 B' V6 ?- s pokeVariant[2].vt = VT_BSTR; 3 Y0 d8 U$ f& W8 ` pokeVariant[2].bstrVal = topicStr; 3 P, K" f0 c8 }9 G( u* q 0 a# ^. m! M( j' m// Set the DISPPARAMS structure that holds the variant. 8 ]. E& [0 R2 F! z% ^& t7 H! [* ` ) i' X2 m$ M8 | dp.rgvarg = pokeVariant;5 M2 A. c% k+ K( g
dp.cArgs = 3; - t" t- G6 H0 q q. @ dp.rgdispidNamedArgs = NULL; ( h5 f- m; y5 H: S7 S4 C) _; n9 k+ E dp.cNamedArgs = 0; . Y" g- R4 c) n! x i- J' c$ f % `( A; {& v0 [// Call IDispatch::Invoke()! D' a8 H7 E7 }+ ^! M
3 O7 Y' i Y/ D hr = m_pDisp->Invoke(: f; v9 f3 B+ u3 Q0 w
pokeID, 1 M; V/ m' w- A+ s! V( ? IID_NULL,$ t( h; Z& {' P, U
LOCALE_SYSTEM_DEFAULT,& W1 j" R, ?: T* Z9 z3 U. `
DISPATCH_METHOD, 2 m6 \) t" m3 Y5 \6 D &dp, " U& i$ w) Q; R ]' K NULL,, M& B* D* W8 |( U6 Z9 \) `
&ei, 1 ~9 q$ V* P2 G' {3 D2 f &uiErr); 4 \# {+ {8 y% v2 [; X) R$ g$ C9 | 9 N0 h, m2 R8 l" z' D+ c: |1 { { SysFreeString(topicStr);# V. f* O( m/ @* E
SysFreeString(itemStr);6 g r/ n8 k2 D
SysFreeString(valueStr);! p5 x/ V+ t* I4 @1 E. |9 A/ O. p
3 T$ Q! ]+ |5 g& ^$ F& j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??? / s M( Y: v! ^6 v1 ~- T' A' i! I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???? 5 q/ I9 B0 \; ^8 g3 w1 J) ^# A9 H$ j
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2.这是request的程序 + ]" C5 T# z9 c! r: F3 J// Request a value from Extend ; Q, T8 a, `- \* N. d3 Y// , O/ Q0 M! [' q. i- b9 g3 E1 f/ n// Initialize the variant that will hold the BSTR. Set the variant's2 p. V3 U5 ~# ?3 V9 q
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 Y; G# `3 c8 Y. v( i6 u* R// BSTR into the variant structure. 1 m; d4 [/ X0 H5 t' K' U5 y : N' {, k* Y8 {- Q% I# f requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 k/ Y+ I9 R# c. Q+ I' |4 c
8 X7 C4 t4 g3 q0 y: o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) f/ S& e; x/ W0 G( }# `
VariantInit(&requestVariant[0]); 0 l; M3 B; ?7 L8 c4 {/ S/ u
requestVariant[0].vt = VT_BSTR;0 N: m9 z; u8 J) b" k; E, Y8 E x
requestVariant[0].bstrVal = itemStr; " M; Z D! u3 s0 x# O% f # w. @6 f: ~: Y& Y% x topicStr = SysAllocString((WCHAR *) L"system"); 2 ?5 s8 D# v( _1 d2 y. | VariantInit(&requestVariant[1]); - ^& Q4 O: _' @- L# i. | S
requestVariant[1].vt = VT_BSTR;2 l1 o! L4 a' m. P# l
requestVariant[1].bstrVal = topicStr;. }( S! X0 U/ c7 V& V
6 ^" S. z& Y1 b9 o* X# e/ Q+ E// Set the DISPPARAMS structure that holds the variant.6 v5 h1 D" ~& b7 ?: [
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dp2.rgvarg = requestVariant; . O u7 ]6 W; e dp2.cArgs = 2;/ w5 R7 {! n* i
dp2.rgdispidNamedArgs = NULL;+ v8 L, w' _2 \, @6 P8 N5 |1 G6 k
dp2.cNamedArgs = 0; 2 g) ?. w1 |& \* c+ q! Q3 V4 m. ^- P% f, V' n% d
var.vt = VT_EMPTY;2 _4 {$ @+ C2 [7 W7 k9 `# l* [
1 [( N- F) l" [) u# K// Call IDispatch::Invoke() ! q' m! Q* g7 e, Y 1 t5 \6 \: r% P7 Y hr = m_pDisp->Invoke( A/ p% ^/ N" Q requestID, ' d! Q/ p7 k$ ~$ A5 u& h7 K IID_NULL, % q+ u" z% Y. P, r" m4 T. l" p6 R LOCALE_SYSTEM_DEFAULT, 9 D/ A8 U7 d/ G# _$ `& Y: t DISPATCH_METHOD, 3 B4 y2 G# U0 i; I; p* t &dp2, 0 \/ D7 c8 R; D( @9 H1 s- i &var, 5 \6 l- E3 Q C$ J5 y &ei, 6 g+ h' Y1 l u/ j% G &uiErr);, Q+ I; g2 N. m+ W# C% ^4 ~" i3 Q
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SysFreeString(topicStr);' Q/ J. j5 ?4 d0 n N1 l8 s; B
SysFreeString(itemStr);' X; y$ t# S, j( I+ N, P
请问该程序是获得extend里面的哪个值?' r4 b, D+ p7 |* V
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????