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: ; u3 H8 M7 u0 z' C, \. _$ C" {7 xName = (WCHAR *) L"Poke";( _5 [+ g3 ?7 D' q: @
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hr = m_pDisp->GetIDsOfNames ( 7 z! _( U+ A1 p% P/ Q4 q6 {: ? IID_NULL, // reserved! `5 [0 W2 [+ k/ T7 N& g" G
&Name, // Array of names to get IDs for5 `5 \2 i! n. X o: t4 G' i1 u
1, // # of names in the array ' j% [" i3 |, v3 j" `$ l LOCALE_SYSTEM_DEFAULT, // System locale ! F( m( n$ J: Z9 ~ &pokeID); // Array of IDs to fill on output8 K( S; k% _# g$ I( h( [2 L
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if (hr)0 @ e- l5 J, m# i: n) U3 U- h
{ + R2 l8 V, R! }" X, ?9 u MessageBox ("Get Poke Unsuccessful"); ! E; F Y3 b: y9 l6 m return; ( V6 S/ F9 {% \! d2 q# r* X6 V: I4 s } ) z6 U/ ^' N+ A: L# m' R! z - C. M$ m# S* i& x8 U% ~' \& f/**************************传递数据给extend**************************************/ + t. W1 V' \3 S" |6 y" V' i0 f pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' Y. e2 j& x! l' i7 s5 I
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valueStr = SysAllocString((WCHAR *) L"1232");- c8 z/ P7 I+ I
VariantInit(&pokeVariant[0]); 8 S6 U! X! [8 |# v0 z pokeVariant[0].vt = VT_BSTR;( Z6 Q% F; y8 o7 T
pokeVariant[0].bstrVal = valueStr;1 O% I; p1 L& \7 h& K6 h
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! q8 @ b$ E0 x& p, L VariantInit(&pokeVariant[1]); ! S- u5 L, _7 `5 J# X+ }
pokeVariant[1].vt = VT_BSTR; Y) Z* V1 Q& T/ p4 Y6 y pokeVariant[1].bstrVal = itemStr; 6 z0 E8 n- i6 B& D$ O1 b: C5 w: f i3 |
topicStr = SysAllocString((WCHAR *) L"system");- B, f; g/ \0 e+ [% A F# A
VariantInit(&pokeVariant[2]); # _* H6 S% g$ j% t
pokeVariant[2].vt = VT_BSTR;% q/ M3 R7 M, O
pokeVariant[2].bstrVal = topicStr; 1 r% K, F* {% w; s! f( m$ N$ s/ g) a" X: ?) [" }8 G* v3 P( w
// Set the DISPPARAMS structure that holds the variant. , b g* ?7 r3 h1 d6 Y' i \1 S2 J0 i0 w* M: ]5 o
dp.rgvarg = pokeVariant; 7 X* E$ P1 ~) @4 ?+ R! G4 S9 p dp.cArgs = 3; 3 @' e @% {0 G ^9 d4 C; X& B dp.rgdispidNamedArgs = NULL;7 V# [/ a5 R. {6 M- T) H0 ^* [
dp.cNamedArgs = 0;' ^1 c( k4 p* K6 R# g
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// Call IDispatch::Invoke() ! {: o6 w: |: c* D9 d7 N% v: _3 L& w$ Z3 v
hr = m_pDisp->Invoke(6 ]9 X" F0 M" m- g+ j( @9 u, ^
pokeID, + k# g( ^& r1 p3 D1 I e IID_NULL,, L: b) H* r5 f; I$ E9 p
LOCALE_SYSTEM_DEFAULT," a: ^: E+ B j# o1 G+ y1 y
DISPATCH_METHOD,4 N3 c8 @( G. A6 t* w
&dp, 5 @3 w5 y; f6 l$ g3 b NULL,- ], i; ?1 z' u+ r4 ]' U0 w
&ei,9 Y6 i5 D7 M0 |' ]% I' u
&uiErr); R) `, I w/ i _
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SysFreeString(topicStr);9 Z+ r9 X- |& b% V( r t2 f. G
SysFreeString(itemStr);) i: ?8 S4 T- z6 B
SysFreeString(valueStr); W6 ^) o9 Z! \" b7 L4 ?; P# c0 S; e$ W0 R4 D9 L9 j4 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???) U9 Z4 `" P+ Q3 [( [7 L
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 c. P+ a7 r k1 f0 w
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2.这是request的程序3 g1 f0 l" C" j' j1 w
// Request a value from Extend5 s/ r7 x5 Q$ d" x; `+ H! x6 K' W. b4 f
//1 y; a" W2 x+ X, R
// Initialize the variant that will hold the BSTR. Set the variant's; G2 f9 {5 X) f Q {1 C) f
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 ]. P. f8 ^4 q. V// BSTR into the variant structure. - }8 x/ r) W; D- V+ e: b: O2 J* u7 k4 g6 v
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 O+ U& ~: h0 a0 o/ R 5 J) z- U6 z* }) _
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. Q) `( W$ H8 P( {" u" _0 b- i
VariantInit(&requestVariant[0]); / |+ \! y* b; l" \1 t
requestVariant[0].vt = VT_BSTR;7 I4 b9 E, D1 g6 |& o& Z6 v3 N" o
requestVariant[0].bstrVal = itemStr;, l I# ]" v% I* H$ U' E! j) C; G
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topicStr = SysAllocString((WCHAR *) L"system");+ t2 A2 f- S% u& r
VariantInit(&requestVariant[1]); # K( e P" f/ ^* N2 V7 K. y1 w requestVariant[1].vt = VT_BSTR; , N9 [% i& z7 S requestVariant[1].bstrVal = topicStr;; Q5 g% C! s" H1 ~
! S" l4 c- [- V6 I( O// Set the DISPPARAMS structure that holds the variant. % x/ V& N. i: o$ X; D* Y2 f1 p. z& Z
dp2.rgvarg = requestVariant; / U7 ~$ {* ?& I$ x dp2.cArgs = 2; ( w/ f- h+ X% i. b" _1 w dp2.rgdispidNamedArgs = NULL; 9 D; M, d' c. n. X dp2.cNamedArgs = 0; 1 R# P5 d" v4 Y$ A/ a% O " n- f9 `& `1 M: k' ? O& [ var.vt = VT_EMPTY;/ R( E) s* G. S, \# p
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// Call IDispatch::Invoke() $ T7 j8 x4 V/ T0 j& { % d' \0 x8 X% c. C2 Z8 I6 N5 c hr = m_pDisp->Invoke( ; D/ ]! ^1 U8 ?- [ requestID,$ x) O X& F! S- K2 U& p
IID_NULL,' y* E" f0 A8 K6 E+ a
LOCALE_SYSTEM_DEFAULT,% Z9 F0 y& F) {9 {! m3 ~1 a7 J
DISPATCH_METHOD,; [; {$ `7 C6 ^0 W
&dp2, 9 u% e0 S; x' U6 ^ &var,, l( e( s& @" m, {+ X. M. J7 ?
&ei, % l Q& _& ]: ~1 y+ ]3 n &uiErr); 8 i& ], ~6 V- l* |; D' y, @6 {# c l' V" A$ \! e- N' e SysFreeString(topicStr);0 F" F! y' f, t
SysFreeString(itemStr);8 Y' \5 u: H1 T
请问该程序是获得extend里面的哪个值? " V V; X5 ~1 [! v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????