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:/ S5 t+ T) i7 H8 u- W! a
Name = (WCHAR *) L"Poke"; $ D T9 k, Q; q $ a4 U' Q$ b9 g, R: [, s3 { hr = m_pDisp->GetIDsOfNames (2 N1 }3 d6 _0 ?# o
IID_NULL, // reserved 3 j. X' Y o# X: P &Name, // Array of names to get IDs for p" j4 [+ c5 j/ W( [' r. P4 ~- @" F
1, // # of names in the array5 T' j" u7 L: Z" o0 m7 R1 ?
LOCALE_SYSTEM_DEFAULT, // System locale- Q0 d3 X+ m( B# V
&pokeID); // Array of IDs to fill on output9 ^" Y+ L' {; `' E. r8 ]9 h) Q
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if (hr)/ T; M4 P* S2 h7 i3 H' V
{; l3 n0 ?' t* G. o6 s1 [% _1 ?) p
MessageBox ("Get Poke Unsuccessful");5 r8 O3 d; C' e, i6 E. {7 d
return;/ }* c% w5 `9 a5 i' D! I5 C; P% j
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& s! @# ?% Y1 ]/**************************传递数据给extend**************************************/+ L1 G, z" d5 t+ N
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- w/ K2 S) \% G9 s" C
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valueStr = SysAllocString((WCHAR *) L"1232"); 6 z: b8 @ W. Q VariantInit(&pokeVariant[0]); t8 E& m+ N ^* e: A pokeVariant[0].vt = VT_BSTR;- x7 D' p" E3 b- r- m/ Y5 z6 y
pokeVariant[0].bstrVal = valueStr; 8 o/ U' c p( }! J- v# F* o6 h8 ]5 K, j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % \2 R- ~/ P# R. w# r# h/ b VariantInit(&pokeVariant[1]); & j1 _1 {" D5 U, x6 T; V& n0 H
pokeVariant[1].vt = VT_BSTR;: |" t' E- J# j- k4 K, e* g8 }7 d$ h8 S
pokeVariant[1].bstrVal = itemStr; 1 ~ `- X, g6 K W O; e3 ~% Y. g& C topicStr = SysAllocString((WCHAR *) L"system"); 0 \5 ? p7 u/ X: K/ x7 | VariantInit(&pokeVariant[2]); : P- {5 j9 Z9 R pokeVariant[2].vt = VT_BSTR; * ~: _2 ~4 @( b" {: o& r$ h pokeVariant[2].bstrVal = topicStr; ; _8 Q+ [0 k8 I& P) d. p/ B0 Q, V4 I0 H- O8 k3 ~
// Set the DISPPARAMS structure that holds the variant. % t- m7 s& ] l; {. x! I ( d4 p1 ]9 k, ^8 W5 x$ [8 i dp.rgvarg = pokeVariant; 5 U. p3 i! z' Q dp.cArgs = 3;, p' X: G& o' j; D; s7 F" N5 {
dp.rgdispidNamedArgs = NULL; " s8 G4 S0 F1 a9 G% ]" c: e" t dp.cNamedArgs = 0;: F( H1 H, L& _8 w& L
6 r6 S$ M5 e. c+ K; ?% M5 |// Call IDispatch::Invoke()1 O9 [( F# m7 T- k) ], w
! e* J' c2 ?1 r, K) n hr = m_pDisp->Invoke( 4 T1 B0 f/ J: l! ? pokeID, 2 v; t1 s) _7 G- M* X2 L+ Z* o8 Y IID_NULL, + h" b i3 T5 l. h- l- H LOCALE_SYSTEM_DEFAULT, + E+ `9 v* \' L2 C3 Q; o9 t DISPATCH_METHOD,* \+ m6 Y1 }- ]. n; p7 i8 x
&dp,8 u( j! M2 u: l! W9 f5 J
NULL,% F/ X- S8 f$ o, t8 y
&ei, ( q1 j3 W7 | R& e &uiErr); , c) L( B8 T5 I f( j) n) \% w) h0 E! Z) f' `
SysFreeString(topicStr);5 p+ N4 m' Y& z& y; g% R
SysFreeString(itemStr);8 X: r2 `! [4 Y3 R# D
SysFreeString(valueStr);/ n1 s! x+ }7 {) D. O6 P$ a* 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??? 1 h6 H3 k) D% [) t1 k- f8 S S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???? ( D! o H( m& o' ? 3 k9 @ {5 R# j& p! M U. O * F# H0 L4 g4 X* I; P/ u* L2.这是request的程序& V* M1 J* M7 |- L
// Request a value from Extend/ g* G* k+ q0 u0 _2 d% h
//: w5 ~6 l/ ~6 D: i! r( l
// Initialize the variant that will hold the BSTR. Set the variant's # R6 m( e: q+ F4 d// type flag to indicate the fact that this variant holds a BSTR. Place the + E. k( F$ |' _ W& \+ J// BSTR into the variant structure.% i, J* F0 W. ]
7 p8 f* ?3 P- U. Z$ ` requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); l3 |5 I: W: U 0 X( M$ X( R9 L. i" |1 W: k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( o: h% @0 e7 T VariantInit(&requestVariant[0]); 2 J9 Z4 C! v0 Z! b& C$ F; ^& Q6 L
requestVariant[0].vt = VT_BSTR; $ t+ _+ Q$ ] b requestVariant[0].bstrVal = itemStr; - X! i1 s3 n2 g+ @- p$ ~8 f# K& R/ v T) k/ o
topicStr = SysAllocString((WCHAR *) L"system");: A( y; g1 Y% t
VariantInit(&requestVariant[1]); ; c" Y# s9 R+ Q, g: k, c/ O requestVariant[1].vt = VT_BSTR;% k; e |7 v" ]0 [# ?
requestVariant[1].bstrVal = topicStr; ; o' j2 c$ d6 ^5 V, w. D0 a5 k! R; a+ Y
// Set the DISPPARAMS structure that holds the variant. $ f$ I, t+ `* t3 B/ W' w: I: n% F) L
dp2.rgvarg = requestVariant;, j% @7 H$ ^! {4 c: u
dp2.cArgs = 2; % R/ d! Y* S' F$ ]/ Y l$ R3 W dp2.rgdispidNamedArgs = NULL; + ^. d) Q- q N, ^6 t, t dp2.cNamedArgs = 0;$ g# R( \2 e% a5 g
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var.vt = VT_EMPTY; # S7 E; N7 X8 @ 1 S+ m5 L; w6 z) m4 e! z// Call IDispatch::Invoke() 7 Y1 C, p K9 h' D6 m: c6 w8 B% |' h' t# c4 i8 R: T
hr = m_pDisp->Invoke(0 i# Q- p6 L. W' {7 H/ f7 F
requestID, / }* u" J% Y/ V2 k" q IID_NULL, ( a, P$ d2 U0 S4 K: V2 h LOCALE_SYSTEM_DEFAULT,+ N5 ]& ]1 A! I) q4 l4 b
DISPATCH_METHOD,8 w# K; `; f$ E2 Z# M7 r, m0 \
&dp2, `4 i8 H4 D8 C! J9 c+ w" n7 \6 z &var,5 W V+ U' i. c' \2 E( I& f( `4 Z
&ei,4 |* ^/ t# W# k% V) X0 n
&uiErr); 3 i- S( `/ J ^" }! ]) J ( V- K+ @. z/ V; @5 ^# t+ N6 R7 z SysFreeString(topicStr);+ i$ B7 M' f; i: D! t
SysFreeString(itemStr);! t! |& R/ r1 V% j( k* V
请问该程序是获得extend里面的哪个值?. @- H) s! _7 u, {: k
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????