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:! S3 a2 g( ^% K0 k; b
Name = (WCHAR *) L"Poke"; 5 p2 _% w: [3 X7 ]) ]4 y4 A) w " ~. ~# S. \4 O1 I8 s
hr = m_pDisp->GetIDsOfNames ( 8 A* \! y" g! r% C IID_NULL, // reserved A* p3 r! O. M Q$ q, V
&Name, // Array of names to get IDs for, I! V& g n5 n( s% @$ I- [! X
1, // # of names in the array7 j4 z# d; Q9 e, S4 m: D
LOCALE_SYSTEM_DEFAULT, // System locale5 n! l/ t4 C: _2 L9 W5 |
&pokeID); // Array of IDs to fill on output ' Y% p" Z3 R+ }$ i, r $ E* q2 x; T! |6 @& Y
if (hr)6 H/ w$ h% Z' q
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MessageBox ("Get Poke Unsuccessful"); ' S1 h* R# x1 w$ C- @/ H1 g1 J; h2 [ return; & y; o5 q* |' C* @. m- ~0 w( R$ P } 2 _% b$ w* k W* B7 S/ w& \ ( D! r8 ?; H8 s6 W/**************************传递数据给extend**************************************/0 B3 E) y' p) J* n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 ^5 ^0 e/ h" Z. J- u
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valueStr = SysAllocString((WCHAR *) L"1232"); # v3 d5 q+ g1 c3 A; U VariantInit(&pokeVariant[0]); * Y* Q! e$ O4 L pokeVariant[0].vt = VT_BSTR;& Z6 I/ b) D I: w2 O X9 q
pokeVariant[0].bstrVal = valueStr;2 v- \( K& X% e( Q- Z2 x. \' W& O# ?
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " G; g6 S( n3 \2 ~) s+ k+ u& W& b/ V VariantInit(&pokeVariant[1]); % l9 K2 ]' v- O5 H- b
pokeVariant[1].vt = VT_BSTR; . Y% T4 f% w" |" {) Z/ o1 P pokeVariant[1].bstrVal = itemStr; 8 ~ ~. N; b- o$ A' @6 n! o6 F3 f7 x! |, Q: U) R
topicStr = SysAllocString((WCHAR *) L"system");+ V- ]6 ~- ?# ^
VariantInit(&pokeVariant[2]); & l9 K/ u! q9 i1 f5 \$ ]
pokeVariant[2].vt = VT_BSTR; % ?" v% O) N& B3 n pokeVariant[2].bstrVal = topicStr;+ r& S" S- e% L6 Q' H# w1 h; K& C
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// Set the DISPPARAMS structure that holds the variant. ) |$ \3 _# x1 Y9 f A" T5 ~! S5 n; ^ |7 M9 J
dp.rgvarg = pokeVariant;. t! o3 N3 ?( q- {. K8 Y
dp.cArgs = 3; 9 K+ d7 Y+ h; d: i dp.rgdispidNamedArgs = NULL;2 S3 X* m+ @0 I, G- J9 B% S
dp.cNamedArgs = 0;) I. A. _# [$ ?2 z. I8 _
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// Call IDispatch::Invoke(); X3 S z7 E. T( A9 ^/ y( w
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hr = m_pDisp->Invoke(2 d! t5 Y# t6 d4 k3 h
pokeID,! H) y ]: N1 N! d7 B" _1 i5 Q
IID_NULL,, b: h: ]4 y0 G
LOCALE_SYSTEM_DEFAULT,2 L3 d$ r' T+ c# ~4 {9 M6 [& }
DISPATCH_METHOD, & z8 Z, ^) I8 P' f& J6 z &dp, 7 D4 f/ [$ c2 G- J3 g3 n NULL,$ [2 `+ X1 T p. ?6 u6 B! A+ e. @
&ei,1 M; v- R" u- q4 ^. ?
&uiErr); / G; t* T1 O; ~( y* G1 z% h2 ?5 y; E! d
SysFreeString(topicStr);' A8 S5 c; n8 q- r3 K6 T9 e7 r7 R; v
SysFreeString(itemStr);8 P' i i! v* k7 B! U
SysFreeString(valueStr);) c( e1 L p7 V2 X2 f* E3 z2 ~
4 z5 X8 T+ O8 Y/ o+ Q/ x6 L
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???! m& ~; Q, t* G5 U9 k0 v3 Y' U8 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???? , W! _- Z# V |/ w9 ~8 s/ n4 g) m% U- d% d5 p+ j
8 Z; i; F1 p; z2.这是request的程序; F3 S* x/ M& C
// Request a value from Extend " B1 p& Q6 ^2 Y5 K& z; U2 R' L// 0 ^% I7 y) D, M* Z A% J// Initialize the variant that will hold the BSTR. Set the variant's& _. z+ U9 |4 N8 {& d* D+ x# _
// type flag to indicate the fact that this variant holds a BSTR. Place the+ G2 v5 B; E: c) P' v7 J4 b+ z
// BSTR into the variant structure. ' L1 b0 b! n+ X; i5 i# b0 Z+ J. C8 F: Z- a) w# w
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# J0 N9 w" |$ x7 z7 ~- |" Y
; @+ R" e6 |- ]1 J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 K4 x% \3 `& Y+ Y8 D' o; W VariantInit(&requestVariant[0]); # E9 {& x8 `1 E" i" U
requestVariant[0].vt = VT_BSTR; ( M5 g. U' V9 ? requestVariant[0].bstrVal = itemStr;0 w0 A# w. j# [9 `
4 _: G% L3 Z( X: R( K topicStr = SysAllocString((WCHAR *) L"system"); ; \4 V* e' b& F' t) M% C VariantInit(&requestVariant[1]); 0 I; @& {3 y) \; F requestVariant[1].vt = VT_BSTR; 8 S8 b0 u* t k requestVariant[1].bstrVal = topicStr;/ h" v& j7 |2 ~
% ^- B& |3 J4 a. a// Set the DISPPARAMS structure that holds the variant.$ \% x' f, C+ u4 l9 V1 C
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dp2.rgvarg = requestVariant;$ k/ O! m4 O- s( n; K& x5 u* P: y
dp2.cArgs = 2; / p( b' e3 j" D" q dp2.rgdispidNamedArgs = NULL; J, o% ]% _! @* T
dp2.cNamedArgs = 0;3 k& V: u; e! \% W8 @4 u
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var.vt = VT_EMPTY;+ ^, Y( p* c8 o; p$ ^# _
0 c- P6 y, s c+ c& T// Call IDispatch::Invoke() & k0 w- z( z, U6 Y9 D P' s( V/ s7 ]6 B2 R3 P6 y: A$ E4 W
hr = m_pDisp->Invoke(+ [" {2 J$ z+ L) `) C
requestID, & H/ Z9 Y' d- L# V IID_NULL, 6 v5 M. g j8 J0 y+ A K7 M LOCALE_SYSTEM_DEFAULT,: N9 i- C" C6 x7 l! f( u: F& ~( E
DISPATCH_METHOD, - v m( {; f, h H0 ~+ W &dp2, . c- f9 K2 {% {- ~0 r" J &var,3 x. D! I+ `7 Q$ ~: u4 Z! Y7 ]
&ei, " n: ]; [% ]' R &uiErr); 1 ?4 v, L) |9 I# a( M$ q( a0 ], M; W2 u2 [& Z; I
SysFreeString(topicStr);4 q" a: e7 a# o0 h' ^
SysFreeString(itemStr); / P3 [6 t% o# T5 T# n请问该程序是获得extend里面的哪个值?8 ~4 } X; A% ]
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????