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 U" \% b* Y$ v
Name = (WCHAR *) L"Poke"; + e" C, w' a/ A/ n , H! ]. [% v9 G5 k) L4 q0 s* g( w
hr = m_pDisp->GetIDsOfNames ( , y1 j" |5 g* \4 ?' ?6 t% S* {# W IID_NULL, // reserved 5 m# ?: j9 i: H5 H0 {& w! w2 O* ]9 ~ &Name, // Array of names to get IDs for$ s* q2 w. o( P/ C+ R$ W3 p
1, // # of names in the array 3 u* g7 ]- s0 }4 |9 `3 R* @) v LOCALE_SYSTEM_DEFAULT, // System locale 3 R# k0 T& W7 h ~ &pokeID); // Array of IDs to fill on output! B3 z* ?8 L X% [
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if (hr) 5 |1 e6 g: o, M' {: ]: |5 i {6 }* G+ j7 S& E# H6 ]" {2 g
MessageBox ("Get Poke Unsuccessful"); ; b* k0 _. |" W8 |# s! ^ [/ D return; 9 h. G* e0 d8 M } 4 @1 a; `4 J; u2 b; [7 u5 l. c ! c6 m, f4 s& c+ y$ h3 }- B/**************************传递数据给extend**************************************/ + a9 v3 I; [% r- u8 s2 l' A7 _: f2 L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) d: S9 u- B4 w7 d% f ' N( A# ~7 J! j" y7 C7 ? valueStr = SysAllocString((WCHAR *) L"1232");0 D8 \( I9 A! Q( v
VariantInit(&pokeVariant[0]); & q; p9 r" E( E2 z7 i) v" R3 g pokeVariant[0].vt = VT_BSTR;' e9 T0 A$ c2 B. i6 ]4 a3 m
pokeVariant[0].bstrVal = valueStr; 4 {$ K$ e$ k7 f- [, x ) M4 T7 E8 z @" ]) F# Y! p6 d* \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! l1 m# t6 Z' Y j( f VariantInit(&pokeVariant[1]); & z: B! ]6 P+ @; n1 R( `3 }$ F pokeVariant[1].vt = VT_BSTR;3 c* a; b$ X0 H1 A
pokeVariant[1].bstrVal = itemStr; 6 k3 x: D- \! d1 W" |$ S/ x4 c6 h; v, v5 o. P$ e
topicStr = SysAllocString((WCHAR *) L"system");6 u+ M6 h9 _9 R$ ~0 D2 z
VariantInit(&pokeVariant[2]); 6 o0 B* Y+ H" [ pokeVariant[2].vt = VT_BSTR;" U( U! g; `! d
pokeVariant[2].bstrVal = topicStr;, t2 f/ u% L9 ~% t
5 X0 U* ?7 K7 I& O// Set the DISPPARAMS structure that holds the variant.% x& v2 L' Q! {6 y2 `
, O% q* w* g/ {' T' s( w dp.rgvarg = pokeVariant; , i* D' m) s& E3 A dp.cArgs = 3; 0 p+ q1 S5 I% i, B! x dp.rgdispidNamedArgs = NULL;9 {. L. h4 \7 r# b( i
dp.cNamedArgs = 0;: n* p; h4 B) n+ S4 t L
& k$ L# _7 D) o1 q1 _// Call IDispatch::Invoke() , j" F2 k: T: O" a+ t5 N! y / V0 }+ J3 J5 R/ H' D hr = m_pDisp->Invoke( % S" D% D4 H9 n$ h: O; W' q' k pokeID, , H& q4 [% K$ R) ~9 e! u* j IID_NULL, 4 [$ }3 Z0 b" K4 r( v& I% A7 g& K LOCALE_SYSTEM_DEFAULT, ! y5 X8 I$ H! v. }) V/ H8 z0 Q$ y DISPATCH_METHOD,2 `. m' r8 Y3 \5 x
&dp,7 y. {4 {* U, V/ m( D
NULL, & f k5 y' a, G2 T &ei,) P' n# y7 A; v! \8 f2 H+ W
&uiErr); 8 @! t w" C5 z1 B& h; o9 k/ q 8 p1 @! J2 n8 I" A' h1 i* J; }9 K SysFreeString(topicStr); * @* v7 e3 s3 Z& x SysFreeString(itemStr); 2 H4 i( G5 M7 t/ V* ` SysFreeString(valueStr);' Y- B. Z; t, Y# r
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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???% j' C+ A/ Q+ {4 U# [
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???? ; Y& d0 b5 i! g( h- w: e1 y1 D W: Q% S
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2.这是request的程序8 g) Z' O! ?" q' ^
// Request a value from Extend) L8 O* |$ S8 k2 g2 r9 o
// * C+ w5 e# z+ `0 t" T# E// Initialize the variant that will hold the BSTR. Set the variant's 3 Z% o* G/ N: D, x3 B! t0 W// type flag to indicate the fact that this variant holds a BSTR. Place the$ o1 o* Y3 S; T/ u; n i1 O
// BSTR into the variant structure. y, A+ ]6 t) X) ]% ]9 e" N: a : I& [5 e" p; i$ m+ v1 z. j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. n3 a8 C8 w0 N. w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) E* O; r$ t, z, H, Z
VariantInit(&requestVariant[0]); & A4 |1 r9 ~% `; X
requestVariant[0].vt = VT_BSTR; , w0 }9 y4 Y1 A: ^4 k0 P3 s requestVariant[0].bstrVal = itemStr;/ E- H* ~7 f, ~1 u0 p; j
/ G6 V( F& C5 o8 S: P1 u topicStr = SysAllocString((WCHAR *) L"system");( A0 p- M) t; h/ Z0 Z- A! M7 K
VariantInit(&requestVariant[1]); ) P: @" @& M. [/ p) P2 N- Z& m+ G/ F
requestVariant[1].vt = VT_BSTR; ( c+ [+ i/ p- k; I+ U requestVariant[1].bstrVal = topicStr; 8 }, H* H/ _6 s5 d! K9 f# p- K2 [* M5 ?; [+ C
// Set the DISPPARAMS structure that holds the variant.7 X- f v, V6 M
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dp2.rgvarg = requestVariant;/ b# w8 ]+ H, M7 V5 |
dp2.cArgs = 2; % w6 l2 x0 X: l5 b$ C4 V* ~* d ` dp2.rgdispidNamedArgs = NULL; 6 k6 k0 b; l+ v dp2.cNamedArgs = 0;/ f" E4 W5 }( g8 Q4 l5 z* ~
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var.vt = VT_EMPTY; 1 J1 l7 b) [+ b8 o. T # _) x7 | B8 k" ] N// Call IDispatch::Invoke()1 N; I: J* [ [" _2 R
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hr = m_pDisp->Invoke( 8 I4 E; W3 ?1 d% H# i- g0 l requestID,! Z4 p; N% x8 I1 J: k
IID_NULL,7 I8 ` F9 }8 L% Z# S+ _; W' p% g0 G
LOCALE_SYSTEM_DEFAULT, # [6 P2 `' b& u, S: S8 ? DISPATCH_METHOD, - [8 u- s, w- J &dp2, : ~( _6 R6 [3 }- E- p# L &var,6 A! n- L: Q; g7 _2 t* q
&ei,0 y* M1 B1 I/ B# D7 G$ l, {, N
&uiErr); $ Z; F& T! V7 M0 m0 ]: n; G9 n8 C
SysFreeString(topicStr);/ D" ~5 E. q3 O; A1 V9 T* ]2 O
SysFreeString(itemStr); 1 m7 Y/ N, R* A# x4 @ `; K请问该程序是获得extend里面的哪个值? / s# v: I1 y, d1 W7 ^% f, I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????