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: ; D' p ^' b* y# B5 t9 `2 cName = (WCHAR *) L"Poke"; 1 ~& G1 r) N3 j# f* o# {) w 2 u9 t" o2 Q. x5 @6 |* B hr = m_pDisp->GetIDsOfNames ( $ Z5 }+ e) Q$ f6 Z IID_NULL, // reserved n1 @' r$ m, i, ?' v! P &Name, // Array of names to get IDs for5 A( L- i5 G/ z4 N# Y/ q) d* Y$ P: L
1, // # of names in the array9 O. w; l: @* u3 F0 P) v ]0 |! V- F
LOCALE_SYSTEM_DEFAULT, // System locale+ B$ m4 M6 w0 F4 L
&pokeID); // Array of IDs to fill on output * L6 k9 h/ k$ c) S- \8 o ; Q) j8 b8 n w6 g& Q
if (hr)0 @: M8 C& _" B3 X" P0 q2 Z
{ ) P2 K v- x3 F/ V( X MessageBox ("Get Poke Unsuccessful");( m4 M! R5 k9 c( k) i
return;. d0 O2 O! u; B. k
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/**************************传递数据给extend**************************************/ 7 M8 f' x+ K' B. K, J b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); & z# x( e d, q( K1 s, G 8 K8 _' V0 G& ?. G( F valueStr = SysAllocString((WCHAR *) L"1232");$ E9 a' ?8 j# O8 E' o! I$ H0 L) A6 [3 w
VariantInit(&pokeVariant[0]); " F# T/ ], p2 b" A2 |9 f pokeVariant[0].vt = VT_BSTR; 9 h1 W3 ~! @: b$ ?& M pokeVariant[0].bstrVal = valueStr;' ^7 J) O4 a s! t' G& u
+ Q9 j/ J* R; N/ t5 @, | v itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! m; L. S$ j0 n3 z VariantInit(&pokeVariant[1]); . g' V6 m6 g' G0 ~
pokeVariant[1].vt = VT_BSTR; - S+ \# v" q- U& S pokeVariant[1].bstrVal = itemStr; - m% q: z1 a0 G4 y* I: A4 C 1 t( x8 P; J9 z4 D topicStr = SysAllocString((WCHAR *) L"system");! S) y- n- a! n
VariantInit(&pokeVariant[2]); $ b* `/ p# J" c pokeVariant[2].vt = VT_BSTR;/ ^ x# N+ P: T& q8 X
pokeVariant[2].bstrVal = topicStr; $ R! O5 g5 N3 h( w# e2 ?* o7 R" }; s
// Set the DISPPARAMS structure that holds the variant. 0 q& o: e: m3 ]8 {* k3 U, l* T( w+ n7 z6 L8 D1 g" p+ i4 a
dp.rgvarg = pokeVariant;$ r) R! E7 R. B( G; X& B8 I7 M& Z0 T
dp.cArgs = 3;# B) h4 u( b& k( L6 v0 V
dp.rgdispidNamedArgs = NULL; $ Y: a: d4 w0 ?9 M. i" a dp.cNamedArgs = 0; 1 f& P, _6 l" K; ]) m1 C: M0 a: k# N( i( N) B" }
// Call IDispatch::Invoke() 6 Q" P& F& m4 v2 A- A" b. s3 O7 H: w. j
hr = m_pDisp->Invoke( + m3 P8 `' x! J( z9 S5 A4 y0 J" q7 B pokeID, / R r3 k0 @. Z& W: I& N IID_NULL,: J$ f7 r' \' @
LOCALE_SYSTEM_DEFAULT,+ [' i( S( H: `4 U, L% a" F
DISPATCH_METHOD,7 [8 u. J9 V) e5 E
&dp,0 O' t* @" ]0 h/ \( s
NULL, ; l) [6 p4 K# k3 C1 A8 u; ]! y &ei,) ]9 l0 d1 T' a$ B
&uiErr); : H0 A( D! y1 g) m& t/ h, J. Q $ w. K% C) q9 {) s! j* w SysFreeString(topicStr); % T, g1 J: t: G7 S7 Y SysFreeString(itemStr);) c: t0 C+ v" U
SysFreeString(valueStr);7 V2 z9 V: {( N$ o' h& {
) M1 G; x O6 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???8 e7 {; q& x4 ^
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???? 1 F1 X8 ^ @; T/ g, z6 ^, y/ \. i1 G% o! S
) H; q0 H% Y, _ Y3 p# W, @9 C2.这是request的程序 + Y$ }% n* g* c// Request a value from Extend& E6 P$ c8 N5 m0 D2 U
// 1 w$ s2 S6 e) a" {/ Y0 c6 P- }; j# T C// Initialize the variant that will hold the BSTR. Set the variant's# d q- [; F5 @( E( V
// type flag to indicate the fact that this variant holds a BSTR. Place the b! D+ U( d' Q// BSTR into the variant structure. 9 H% v: A1 m9 s* H5 I7 W% C' Y+ P ) x/ K1 _/ J! A7 @ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);* X) i9 O/ K0 P4 ~2 `, A/ b9 o
5 _4 ^6 Y# l7 `- K7 g% o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 K# q' n8 d# b/ E: i S1 w4 @
VariantInit(&requestVariant[0]); % ?" q1 k5 e- k" y4 d3 N ?/ O+ o
requestVariant[0].vt = VT_BSTR;$ y3 k, f. E0 W6 l
requestVariant[0].bstrVal = itemStr;7 a C5 k. d; f& b) v" f3 m' u
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topicStr = SysAllocString((WCHAR *) L"system");- D+ F5 U8 T% t( ~
VariantInit(&requestVariant[1]); $ J/ g+ x; [ R requestVariant[1].vt = VT_BSTR;( e/ S: v, Q7 f) c4 n
requestVariant[1].bstrVal = topicStr; 0 s+ S' S3 E, f5 U3 o2 f7 @/ E 0 D! o) g# V P% \( _// Set the DISPPARAMS structure that holds the variant.1 X9 C$ j" V! U; X6 F; B
4 @. E6 \9 r7 c; ]7 i dp2.rgvarg = requestVariant; * ^ L: E" r9 ^8 K dp2.cArgs = 2;; P; j$ [8 |' y: L
dp2.rgdispidNamedArgs = NULL; / W& ?& ]. @2 J$ n' ]0 h# M dp2.cNamedArgs = 0;7 D. A* J5 `* N( _
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var.vt = VT_EMPTY; * u2 @. X0 X8 }+ N- s " v# S# w: H& D# ^# m5 a// Call IDispatch::Invoke() 2 }( `' C: o# x) ?2 d + `7 P8 X2 ]! u9 E hr = m_pDisp->Invoke(' ?1 }# o, }, k1 P5 q" Z$ T4 n' {
requestID,+ D+ Y, T' ?' y5 i4 _* h1 A
IID_NULL, % F9 z- |2 F8 I) \8 z LOCALE_SYSTEM_DEFAULT,9 J: u8 o$ S1 }0 w% d4 V- ?- G# ^
DISPATCH_METHOD, & u1 q1 Y1 W. `2 ` &dp2,) ]5 L8 N2 [8 F2 u% d+ W% |1 i
&var, ( t: q5 x6 ?& z &ei,; Y2 M) |& y4 b# O
&uiErr);2 ^' \6 m( ? _9 G+ R& {: O
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SysFreeString(topicStr); h3 Y; g# }+ s$ A' u
SysFreeString(itemStr);5 t$ g' |) O' Z: U& H' k& s
请问该程序是获得extend里面的哪个值? ) `1 k9 H: L: n% m2 j8 V6 g4 a4 i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????