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: 3 }0 C; i; z0 P) K7 t( m: r$ k8 g' `Name = (WCHAR *) L"Poke"; 1 l+ O8 G) K1 m6 J' o7 b 8 J* X2 P, q; V% F
hr = m_pDisp->GetIDsOfNames ( 6 `8 c& a2 V7 P0 B* S# g# T: d IID_NULL, // reserved 1 x8 K' G6 W# G0 z6 t &Name, // Array of names to get IDs for% ]0 A h: L, e4 n" L
1, // # of names in the array 1 E: s/ n3 ]! f) p% x) j- k" t+ R LOCALE_SYSTEM_DEFAULT, // System locale & K/ }; D# Z. Y) @+ i" M &pokeID); // Array of IDs to fill on output H1 E7 S4 ? r: x* }5 \! Y 2 s$ L# n, V* s" v8 t& |3 u
if (hr) - P8 }7 n7 ?! C; i f {- Z+ n1 X& _$ ^" Y0 x
MessageBox ("Get Poke Unsuccessful");+ A0 T/ U: {9 j
return; M& u8 A+ R5 y
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; V+ g9 M; y9 `/ _/ _0 ~/**************************传递数据给extend**************************************// }8 B. |+ p' Z1 j: f3 M
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: p2 J; a h) @7 [6 p
* b+ M z- P3 Q! e valueStr = SysAllocString((WCHAR *) L"1232"); ! b' ?: O! ` M2 N: t- N VariantInit(&pokeVariant[0]); 9 P0 M/ e2 ` S8 c6 H* ` x pokeVariant[0].vt = VT_BSTR;/ X! e* Z" ^4 f4 ? k6 F% z
pokeVariant[0].bstrVal = valueStr;* W9 l4 R& m1 n& M
4 k# F; K {. Q2 `; B7 f: L topicStr = SysAllocString((WCHAR *) L"system");8 ^9 C( Q, U3 C0 W! j5 I
VariantInit(&pokeVariant[2]); * @% R1 e% W% S* ?- E pokeVariant[2].vt = VT_BSTR;7 z, u, ^8 p$ c" ?9 Z* f: j# W
pokeVariant[2].bstrVal = topicStr;4 Q) o, ]* b& O
# I& S- F0 C: q' G0 u- K$ V, O) Z// Set the DISPPARAMS structure that holds the variant.5 M& E% w* |5 h- b* |$ i9 w. ?
* d0 O8 a3 q% ~# l4 l4 S5 ? dp.rgvarg = pokeVariant;2 V- J4 d, B) S1 t
dp.cArgs = 3; / G2 g7 c% T, Q; a/ R+ b# e; h7 Z$ _ dp.rgdispidNamedArgs = NULL; 6 [, j0 `) d% I' @2 o dp.cNamedArgs = 0; 5 r' V- b2 G; D + ?' z. K) P9 ]9 z; n$ P/ }// Call IDispatch::Invoke() " }7 z, _/ x" A7 f# \& M3 O8 Q2 O( f" d$ c, z% a! T
hr = m_pDisp->Invoke(4 M; F: s3 B5 n5 ^' y; ?, d9 K
pokeID,4 K: s) c2 L3 o( P
IID_NULL,, H5 g9 Y6 h8 H& o" q& K
LOCALE_SYSTEM_DEFAULT, + S! u4 X6 ?' C1 K1 ^+ ?* L DISPATCH_METHOD, 3 B! y2 _, o" y6 H &dp, % h6 Z$ j6 l6 W NULL, $ Q: @2 E; H% d C8 R7 C &ei,% Z) Y9 B. Q/ j) F# ?" |/ u
&uiErr); : l0 A. m7 D% U' m% s5 Z5 d* u) ^! P3 }. A4 |# ]
SysFreeString(topicStr); " K# C/ f0 D8 E2 V3 n SysFreeString(itemStr); B, X' U9 f. u$ A U
SysFreeString(valueStr);4 u7 a, o9 h! y& G/ ^
) y: D; [& |7 _0 b+ c0 X1 s3 \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 s+ x' _. M) u! l1 [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????9 G2 E: t& q7 u$ m6 {% J
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2.这是request的程序 + O/ J% ~& m! L2 R R// Request a value from Extend8 P5 M& \2 B; I7 i9 I7 H
//, R; m9 m3 V5 ?" [. T5 k" o
// Initialize the variant that will hold the BSTR. Set the variant's* L* f; R0 ]% f8 J4 I8 s5 V
// type flag to indicate the fact that this variant holds a BSTR. Place the / H- {$ M9 Y# `( g$ H6 _9 W// BSTR into the variant structure.. W( E& P: W6 ^" w: o: t
2 A, P) }7 S" g9 A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ M" G# D& T+ x. E7 j1 i
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 A! n1 [! q& e% z. I
VariantInit(&requestVariant[0]); ' k9 Q; B* u4 E requestVariant[0].vt = VT_BSTR; 6 d% v& p% z* X5 B/ r requestVariant[0].bstrVal = itemStr;1 U- G2 @; e: r: ^0 B& k
6 V: G; V# |, g/ Q/ I7 ?2 q topicStr = SysAllocString((WCHAR *) L"system"); # l3 n% \3 x$ U8 Y$ v4 Y, z. r; n, m VariantInit(&requestVariant[1]); K/ l- @) e6 ]% S; h- { requestVariant[1].vt = VT_BSTR;5 S8 `" j( R" A) S) g1 a k
requestVariant[1].bstrVal = topicStr;! M0 o; }7 A2 Z& h; C8 P
6 ^2 D3 J1 j! o) ]2 B+ X. G {" s// Set the DISPPARAMS structure that holds the variant., m- c/ s- x) K- Q
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dp2.rgvarg = requestVariant;3 R& ?+ f* u3 U3 B
dp2.cArgs = 2; R8 ?! p& p3 ` dp2.rgdispidNamedArgs = NULL; 1 L' o0 \' k+ Z. X dp2.cNamedArgs = 0;+ P4 T0 f1 v, E- u+ V
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var.vt = VT_EMPTY; 0 }5 P' Q, _6 C4 C7 G- F$ g; A4 t9 i8 b; Z" B$ C
// Call IDispatch::Invoke() ; Z2 z* m D3 S: y* |* k5 r * Y a$ E2 n% D hr = m_pDisp->Invoke(0 n- S- J& O3 b# T2 o" H$ L: n
requestID, / n# ]- P0 h) A IID_NULL,! G& s9 r6 Y' q2 m
LOCALE_SYSTEM_DEFAULT, & G6 d0 y& @ X9 n; J1 j2 Z DISPATCH_METHOD,. |4 o: e- C) F4 P+ O
&dp2,, p9 C- A2 w- {2 Z: c
&var, " a# U# q1 b" b, I5 v8 H) |; l &ei, 6 ?, U0 n5 E. l6 U &uiErr); 9 j5 n! t9 ]3 L; ~1 r& \2 Z f* a* A* J
SysFreeString(topicStr); & Z( q z8 @: F SysFreeString(itemStr); 4 u, p+ Z% w% I1 {1 c请问该程序是获得extend里面的哪个值?" D. s! a5 P7 ?3 I/ p" _
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????