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: 6 H9 ]" y9 Z; P8 H! vName = (WCHAR *) L"Poke"; ! {$ D/ O" n3 i3 o) l N: W$ Z2 |/ c( o hr = m_pDisp->GetIDsOfNames ( @, ^* g# o. |6 K IID_NULL, // reserved: P" I: O; O8 Z9 i& j
&Name, // Array of names to get IDs for ( @ M5 A) b% |5 y# e4 l# W 1, // # of names in the array # {4 W' n. z/ c+ f" A LOCALE_SYSTEM_DEFAULT, // System locale 5 `5 |: v0 w$ A+ o &pokeID); // Array of IDs to fill on output, l4 k% {) Q7 Z6 |/ o
: g9 u5 u# s1 N$ A) T1 s if (hr) j0 }/ } h$ D/ q: s/ C { 0 ?/ s! _* {+ ^" j0 w% L/ Q MessageBox ("Get Poke Unsuccessful"); B3 \: v, n2 f1 F3 f return; 2 l* p. \! L: I& d9 M7 R }! L/ O( P. _6 S4 m$ ^! G
6 O* b3 P b. F0 V/**************************传递数据给extend**************************************/& q) G( N C$ t2 ^) B1 u5 s2 N
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' e5 S( } y. C % I# n% b0 t" g0 d: y% l9 T valueStr = SysAllocString((WCHAR *) L"1232");3 ]% B6 K! n) H5 |# b4 N3 W, l4 g
VariantInit(&pokeVariant[0]); N0 n- x! G" z" z; i pokeVariant[0].vt = VT_BSTR;( c) y1 K) N+ `, F2 i& D
pokeVariant[0].bstrVal = valueStr;9 K7 W" b6 S: ]5 D4 D( j
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); d; U) i3 g( o+ h8 B% I: d VariantInit(&pokeVariant[1]); ; F$ p" S5 O; U2 V% l5 o/ E
pokeVariant[1].vt = VT_BSTR; * _1 Q. i& Y' ?/ g7 v3 M pokeVariant[1].bstrVal = itemStr;1 G; s j2 Q9 M6 ]9 T6 k
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topicStr = SysAllocString((WCHAR *) L"system"); " ]0 \) W; Z' }0 E. V, m- H VariantInit(&pokeVariant[2]); 3 `8 n1 O& y4 X- Y( U( a! s
pokeVariant[2].vt = VT_BSTR; 9 u6 T. Q+ E0 z* @ pokeVariant[2].bstrVal = topicStr; : M0 m/ o- h: k: R7 v1 d. r + H! k2 X, {! e. [: l7 L// Set the DISPPARAMS structure that holds the variant. - p' Z# Z: p" \1 R+ k- x % r' E2 i! b/ V T2 s; c dp.rgvarg = pokeVariant; ! j! r* R) M* P- j dp.cArgs = 3; : ?- ]1 C2 a. S dp.rgdispidNamedArgs = NULL; : a$ u% ?; V( e M B dp.cNamedArgs = 0; 7 G. M# X0 o2 J0 j' b/ n 4 u6 X) Z" n& M/ k2 G// Call IDispatch::Invoke()& B6 v0 R9 S0 G4 s$ E
, s+ ^; y. p* c8 \ hr = m_pDisp->Invoke( % p3 a& I" P; [# B pokeID,8 v% r, A. C; a- o3 ~
IID_NULL,/ Z4 P1 x* Q/ h9 ]) v3 s
LOCALE_SYSTEM_DEFAULT,! ]: B- ~: M# f
DISPATCH_METHOD,# P% A6 Q4 a! e
&dp, 6 k2 @6 J' G4 E; ~& Q NULL, $ g! b9 | [+ D H+ E &ei,- Q; n- m& t) M4 n
&uiErr); 1 a; ~2 ^, T7 u7 h$ G2 E+ x( } ' H, R+ p, x5 {7 E SysFreeString(topicStr);- ~& R0 @* Z2 z2 [1 l. n9 X" N- E
SysFreeString(itemStr); / b+ X( d9 K6 `+ J) F8 A SysFreeString(valueStr);- \& @- j* _; f( v- X" j) V# V5 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??? 5 z/ [9 p8 x7 O/ M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????) r# g6 s3 I! ?' _: h
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2.这是request的程序 2 P T3 ]: N6 S1 b. }. F// Request a value from Extend6 B$ B, h7 Q+ N" {! g- |+ j6 m$ p" d
// K/ y5 } T- h+ U/ Y2 m// Initialize the variant that will hold the BSTR. Set the variant's) } t" n# C' X7 [9 D
// type flag to indicate the fact that this variant holds a BSTR. Place the2 e& `' }! n6 D
// BSTR into the variant structure.+ W4 x; {3 _# r1 Y
$ r/ _( i% Z, b1 x requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , Y( D/ a2 D; T& B ) C3 F3 G4 B" v6 x( M+ q. U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ k. P; Z( \" x1 q VariantInit(&requestVariant[0]); 4 I! o* f8 q1 A* }: z9 b. z requestVariant[0].vt = VT_BSTR; % ~7 \. w e: K requestVariant[0].bstrVal = itemStr;2 D' {' B$ k+ f
! P/ P+ g* {0 Z( {" h. k topicStr = SysAllocString((WCHAR *) L"system");- F+ d3 {3 h& A$ t) X! ~; s' J
VariantInit(&requestVariant[1]); % w. b* K% X3 ]4 q# A
requestVariant[1].vt = VT_BSTR; ; v/ J8 T: p- f requestVariant[1].bstrVal = topicStr; 6 S+ H( ?" t0 G" u" G- Q' v- _ 3 a" r. t/ X6 \+ ]* R3 I// Set the DISPPARAMS structure that holds the variant. u+ a& f6 T+ H% ^
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dp2.rgvarg = requestVariant;$ j# D. y# R, F2 D, S
dp2.cArgs = 2; : P- R4 e, a4 u3 [ dp2.rgdispidNamedArgs = NULL;: N, M" K& T0 T. X
dp2.cNamedArgs = 0;6 B7 V* m0 }+ R* V9 v: t' ^
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var.vt = VT_EMPTY; 4 h- v- H# b( w3 \2 ?! j+ w $ K7 A. G4 {- ^: A9 t; z$ X// Call IDispatch::Invoke()# H7 M$ M! W& `, C( a: F: r
' K, _9 v' p/ J5 [4 I hr = m_pDisp->Invoke(& v! H" m0 ]# v+ U- r$ D) Q6 U
requestID, & {$ \. ?; U& z3 }% y5 f1 h( j; o+ H' ] IID_NULL, 7 y2 i+ G2 R: A6 M, q; U A& ] LOCALE_SYSTEM_DEFAULT,# y8 V4 {+ C+ p1 E+ T
DISPATCH_METHOD, 0 z0 K; ^) e( I. y! c7 r &dp2, 2 S/ O) P5 T$ Y! n& e$ i+ n, l8 x &var, 6 \2 i2 \. g6 T. [$ w H- [ &ei, w" p; L% |# ?6 M. K& [" w
&uiErr);/ y# x2 A) O4 V* h, x, i8 N
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SysFreeString(topicStr);* K3 q" d# ^9 w: y8 b
SysFreeString(itemStr); , x4 F0 v0 l1 Y1 E请问该程序是获得extend里面的哪个值? 3 l4 ^, j5 i" u5 e% a( B" R+ F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????