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:7 e; P2 M' V. q
Name = (WCHAR *) L"Poke"; 2 F9 S% n D' ^8 [4 N7 b( F ' J- a N# \8 d- X* [3 W hr = m_pDisp->GetIDsOfNames ($ v- @& B/ T- ?2 y: w5 F8 l3 S
IID_NULL, // reserved " E; M+ z2 S9 @7 m* d2 j% E &Name, // Array of names to get IDs for - L$ q/ v& e' A, u( }* y 1, // # of names in the array - U0 C0 b2 H" g, U4 l LOCALE_SYSTEM_DEFAULT, // System locale; L, q& ~, M- s3 r! M6 f
&pokeID); // Array of IDs to fill on output6 E& K, k( }& J! ?3 ` B* C
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if (hr) 4 J7 `7 ?& B8 X { 3 F( X4 @! b, U {( U! o2 B& z7 j& k MessageBox ("Get Poke Unsuccessful"); 2 M8 N, j) K' M5 `7 u- i; k, h( V return; / c3 ~+ `% |6 k3 `! d }+ K. L# T) V# p7 T: Z5 A6 F9 x
/ Q0 U7 e; \: v valueStr = SysAllocString((WCHAR *) L"1232");4 R* B! {* |1 o
VariantInit(&pokeVariant[0]); 2 c& d$ Z$ s3 y6 y* u) V. E pokeVariant[0].vt = VT_BSTR;, B$ S: v7 V; b5 E2 B9 `0 P
pokeVariant[0].bstrVal = valueStr;' b/ u' H) A4 S, j- n, R
4 w2 j3 a, l, }* D }3 w4 F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 P& z7 ^9 i* A0 J5 Y VariantInit(&pokeVariant[1]); 3 m. T5 q9 n9 @; f2 m; _ pokeVariant[1].vt = VT_BSTR;; T6 @" l5 C3 J+ ?
pokeVariant[1].bstrVal = itemStr;1 E' @: `; v+ i% K+ R" U. d
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topicStr = SysAllocString((WCHAR *) L"system"); 5 K5 e( m/ x$ C e2 a VariantInit(&pokeVariant[2]); 2 A1 k# {2 s& D$ ]8 X% i# X% A% r pokeVariant[2].vt = VT_BSTR; * v6 C$ u2 Z$ t2 C: d! ~) y. f pokeVariant[2].bstrVal = topicStr; . D; n+ O: p7 [# z8 l 7 |0 c& B. E6 b! W8 o) N% w// Set the DISPPARAMS structure that holds the variant.2 D- ]* m$ V5 ?8 }. c
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dp.rgvarg = pokeVariant;) C% ~6 K' k) Z! \ @
dp.cArgs = 3; 9 t) Y0 H% a" S6 d3 l; w dp.rgdispidNamedArgs = NULL; 7 _6 \ [- f- g& z B0 J dp.cNamedArgs = 0;, d: z2 {, Q$ }
! ~ q, w* D4 Y' q% m// Call IDispatch::Invoke()# X! `+ B/ q+ G/ U5 O* S. K
+ g) M% `& N+ Z5 A/ R hr = m_pDisp->Invoke( " N8 s: ^. b' _: D9 v$ i( @1 J* M. g pokeID,& x# i5 P" I$ D! b0 z# u
IID_NULL, & F- I8 a2 e8 ?$ q, l( o' q LOCALE_SYSTEM_DEFAULT,1 b" R* k7 e9 T. e# V
DISPATCH_METHOD,# u0 s- [; g! n
&dp, . q! e) e6 O, ` NULL, / B, I; Y5 U- Z &ei, + t6 l" X2 x8 ? I &uiErr); 3 Q4 n& l: R7 @. V& H ! X% B- G) C& V: y* V SysFreeString(topicStr); . O: w) U) O8 M( T SysFreeString(itemStr); " ^3 O) S6 L. F" h SysFreeString(valueStr); ) {) k. W) d$ F0 e" |/ C 4 N5 h0 F. c" I, l; y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??? ) a5 R! u& {1 |1 a& |- O, @% i: x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????+ h4 z" ?1 h. m) y- R. l- X
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3 q, v* l/ C+ b" Q0 Q9 \9 d6 V2.这是request的程序; y8 B8 M. {9 l1 [+ I
// Request a value from Extend5 Z- r. N' q# e4 J# v1 @! F# C
// 9 u. y; ]( f- E l+ y# I- V# _// Initialize the variant that will hold the BSTR. Set the variant's / n* w3 E9 R( O; {// type flag to indicate the fact that this variant holds a BSTR. Place the# ?& B! n7 i; q
// BSTR into the variant structure.* h4 j% A7 x8 V( D* d. u- _9 r( a; L
0 i5 }# d. C2 I9 P1 u requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 Q, Q. }7 s3 |5 M
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - R9 L+ a! k$ }! Y+ H8 ~! b VariantInit(&requestVariant[0]); - ^) k: D; }% U# j( J requestVariant[0].vt = VT_BSTR; - x @( D9 y7 M; W" |( O" q requestVariant[0].bstrVal = itemStr;' U! F4 V/ o' \& A5 R' I6 }3 g! d0 ^
. x: I$ ?) c. Q- Q1 P( ?- v% }. r5 D+ C topicStr = SysAllocString((WCHAR *) L"system"); 0 J1 H$ i4 A0 h, S- m. J VariantInit(&requestVariant[1]); " O1 {* G0 B+ }; c, ]! G6 i. A
requestVariant[1].vt = VT_BSTR; + O+ o& @: V( ~; k# X3 j! B requestVariant[1].bstrVal = topicStr;; m+ t2 X$ H0 u% o
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// Set the DISPPARAMS structure that holds the variant.% h2 K" p! C% N
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dp2.rgvarg = requestVariant; 2 r1 S% I- G2 r7 ]& T2 @ K0 n dp2.cArgs = 2;6 }6 g& @, r0 t$ F$ F2 T2 a. p. _
dp2.rgdispidNamedArgs = NULL;' ?& Q' q' `8 J* X: r
dp2.cNamedArgs = 0;; Y+ y! z/ y9 U# s
: g! p8 F# A9 o& Y7 x4 D4 g var.vt = VT_EMPTY; " P; f0 Y# G, C: f) r # Y, U) F4 C4 ?) d& o4 t. V1 H/ i: L( z// Call IDispatch::Invoke() # E. i6 H" t5 N8 d/ D% a" A: `* U7 j6 o' Y0 ~7 v# m- m( V7 T9 a
hr = m_pDisp->Invoke( # I" ?, C2 I+ ~" { requestID, * [/ q9 h# ^' A% l IID_NULL,# x3 m, x q3 G' \ g
LOCALE_SYSTEM_DEFAULT, 5 d3 u8 O+ l' V% X; X* z DISPATCH_METHOD,4 d9 I! `; T+ i/ `, d6 g
&dp2, 2 H N! h1 L; _- j k( n9 @+ x &var, - A$ k3 [6 @, }7 a' G% F# z &ei,! G9 p: ^& U1 _ @. B/ j
&uiErr); 4 g; j" r8 Y5 R5 `* A8 X7 T7 ]8 A6 Y% P. ~; i- Z
SysFreeString(topicStr);% E2 u7 T) a. S; L2 q" _
SysFreeString(itemStr); 9 z& M$ F6 l u% S请问该程序是获得extend里面的哪个值?" w" [$ N; O) f7 }8 `6 J1 S* c
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????