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:. J- {* J( |, c3 m% p
Name = (WCHAR *) L"Poke";7 M6 h6 `+ z& `( k* k a
6 T$ ]/ B3 |' ~* T7 x* \& r hr = m_pDisp->GetIDsOfNames ( , ^; }$ ~' L, \( [ IID_NULL, // reserved ( r3 [ m4 ^# h &Name, // Array of names to get IDs for 6 L' b. p9 _$ ~: h' W. r8 r 1, // # of names in the array ; _( C1 {. i/ C8 `+ _6 B LOCALE_SYSTEM_DEFAULT, // System locale! O* U! `( m/ L' ~# {7 P) E r5 h$ Z
&pokeID); // Array of IDs to fill on output & m7 c0 Z6 ~7 H. H # X# Y- V/ J# K" U4 ~- P- v3 E6 t4 z
if (hr)/ G/ ?: W- @! p0 f: {, y
{ 3 m5 b" u8 P1 h8 {3 A MessageBox ("Get Poke Unsuccessful"); # Y: y9 y3 P% b; T% q9 P1 T: n return; 4 y K8 k# u& I }/ z# J0 _, J- s, y7 \
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/**************************传递数据给extend**************************************/ 8 e1 |* E% [! R% D1 l. |* g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); + w' m' n! F. v. @, T ; |9 G t+ y- n& ^
valueStr = SysAllocString((WCHAR *) L"1232");5 K4 D' A0 }2 a
VariantInit(&pokeVariant[0]); # F7 i5 x# e8 F0 G. R
pokeVariant[0].vt = VT_BSTR;3 ?0 C, O) W; E& @8 L/ [ _8 h S
pokeVariant[0].bstrVal = valueStr; " e1 p" X. X0 h8 [ `, Z! R+ u, J, I: x1 Q5 w" Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 N# o) {6 p) x: Q3 h( u VariantInit(&pokeVariant[1]); # A S: i$ D* o3 n
pokeVariant[1].vt = VT_BSTR; 6 P1 _% A" b* [' ~& S& N) m pokeVariant[1].bstrVal = itemStr; 5 C* x0 p$ Y6 t + e0 w5 p# x( J4 v' l topicStr = SysAllocString((WCHAR *) L"system");' X0 P4 }6 @) `& _
VariantInit(&pokeVariant[2]); ; ]* l W8 G7 l* y/ P s pokeVariant[2].vt = VT_BSTR; 7 d) F& R0 c$ K% b" _ pokeVariant[2].bstrVal = topicStr;5 a$ `1 C7 h' B! N8 h) @
7 x; b, ]( \( H// Set the DISPPARAMS structure that holds the variant. 7 h! N' B/ Q+ W9 `& y 2 N! p% ?5 k6 ~2 q: x9 ~4 E( f, N dp.rgvarg = pokeVariant;, P" B( g" | l5 j
dp.cArgs = 3; p9 ?* _) l! s. K- ^9 _4 V
dp.rgdispidNamedArgs = NULL; ' t7 z' r( G# g4 q* m+ T! S dp.cNamedArgs = 0;) O+ N* ]% f; ^0 x3 _/ X1 {% P
+ u) ?& A9 j, d s! |2 \" I
// Call IDispatch::Invoke()1 X. ?7 a! [7 ^* G7 ?
1 M% H+ U% F5 }2 T k% O hr = m_pDisp->Invoke( + x7 n7 L' h) V" t& C pokeID,# p1 t+ P5 C4 |8 K8 k
IID_NULL, ' L; p$ j3 e( e: B+ B/ w$ f- s LOCALE_SYSTEM_DEFAULT, I7 ]3 r( J7 }3 V DISPATCH_METHOD,/ Z0 o( O1 G- v, ~ L, W! w
&dp, , ~ `- x L& b NULL, # Z& b' ? I$ S* \: O' m$ f &ei, ! f j! {! i; D) |1 @# [. q) W &uiErr); C% F6 D( [) r: I5 S0 B2 D 4 J7 g( I* ~$ { |! m SysFreeString(topicStr); ' n: L) u4 T& F \ SysFreeString(itemStr); ! A# W! j! N( L0 W SysFreeString(valueStr); / }6 t; Z( O+ ]2 t0 a$ { 7 p& w2 O0 ^! g" i7 n/ z- n' 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??? 9 R/ N. b) S; r E, O" v3 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???? $ \( {/ p1 o8 }! f, f" J% g1 j# h- t
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2.这是request的程序* l. T. p# p3 F# c
// Request a value from Extend& z9 ~7 Z2 d% V* L. [) V/ B. _& j
//; A: U4 ?0 _/ I j- o, }
// Initialize the variant that will hold the BSTR. Set the variant's ' v" a) `/ B5 Y// type flag to indicate the fact that this variant holds a BSTR. Place the" }! i; N5 N% H0 @, t
// BSTR into the variant structure.3 q/ y. y% y" E1 ]; Q2 S k2 k
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % n: j+ F1 ` r; g" _6 e, ` / m( A$ ^! w+ R- p0 k: y0 i
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # a6 H% a! O: u' y2 S VariantInit(&requestVariant[0]); + x$ a% g/ L' j, w3 G+ `4 m% c
requestVariant[0].vt = VT_BSTR;, a* j0 `0 P7 m
requestVariant[0].bstrVal = itemStr; 7 N+ g6 {5 E8 [% E 3 p- @3 |: g- M5 R! E0 Z topicStr = SysAllocString((WCHAR *) L"system"); : }* J6 L$ P7 v8 c; Z VariantInit(&requestVariant[1]); " j' b! z+ I: j7 x
requestVariant[1].vt = VT_BSTR;/ b: Y, h$ y1 W* C7 ]9 y& k
requestVariant[1].bstrVal = topicStr; J7 \& P0 h# X. I% K, t$ i/ J7 v7 r: @
// Set the DISPPARAMS structure that holds the variant.9 }1 p( T: Q3 c, C0 T. ~
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dp2.rgvarg = requestVariant;" ?6 P) f" y4 ^& Q7 E
dp2.cArgs = 2; ! B+ _+ m1 D; `9 w) |* _7 l dp2.rgdispidNamedArgs = NULL;( e/ W' T# h9 k& L, U. t9 K( [
dp2.cNamedArgs = 0;% h: ]+ u' N; ^
" x4 h7 I5 O4 W' Q$ P3 ~ var.vt = VT_EMPTY; # M* o7 D; R" c9 h( l' c- s8 y$ D2 S- _; e( C4 v
// Call IDispatch::Invoke() ( {0 u% q8 X: T 6 x( b. E' |# Z. l4 m/ f hr = m_pDisp->Invoke(( M3 K7 B) [4 `, T. {+ }
requestID, : T5 k" r' Y$ {5 u$ K5 X9 O IID_NULL,, v4 r9 a3 v& A" b# x. b5 P8 J
LOCALE_SYSTEM_DEFAULT, ; L8 R7 e; }) E8 ^ DISPATCH_METHOD, 9 Q; v% N- p7 S+ k+ {* C &dp2,* B6 ]5 X. l$ B) D6 G; B2 U
&var,: k! G' F; S8 Q& o
&ei, , D) K) b) a1 J- o, ?' I &uiErr);# p: p: o I6 q( \: W
% t6 p3 z2 S+ N, @3 c1 N SysFreeString(topicStr); x. s5 b. G7 i, _& v# u- ?
SysFreeString(itemStr);9 y0 V( h' ~6 ^3 N+ d* ~0 U) {* d! G# y
请问该程序是获得extend里面的哪个值?2 g. G+ g 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????