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:- ^! U, v1 \6 s# B+ c& I9 ~3 Z, m
Name = (WCHAR *) L"Poke";- m8 ]" ?3 u/ u
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hr = m_pDisp->GetIDsOfNames (3 j* }4 B- R4 X
IID_NULL, // reserved7 x( S0 B1 [- v& i2 z
&Name, // Array of names to get IDs for / @5 F8 e. f8 k2 c- E) Y 1, // # of names in the array % h7 a" @+ e; t) | h LOCALE_SYSTEM_DEFAULT, // System locale4 ]. c4 f0 p B: f
&pokeID); // Array of IDs to fill on output ; u4 C* n/ v/ v3 O/ f ( {1 }/ R( E9 G( p if (hr)% z! U+ r0 Q( [% B) Y. G8 v. t
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MessageBox ("Get Poke Unsuccessful");- P* D. x: Z5 v8 u8 X, w. j5 w) z
return; ; F0 ^$ p5 _$ [2 C( j' w }( v: |6 [! K/ j* v4 ]$ I1 Q
: O, u0 J: U. C) V$ u7 Y: O/**************************传递数据给extend**************************************// o1 I1 p/ X6 w! H5 B
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& x1 i& \: N Y2 Z
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valueStr = SysAllocString((WCHAR *) L"1232");( V$ n+ P) s6 b
VariantInit(&pokeVariant[0]); 7 Q& l' I3 e5 i/ B8 O/ a5 D
pokeVariant[0].vt = VT_BSTR; 7 Q7 ^! ^- S0 H( j/ w7 G0 X pokeVariant[0].bstrVal = valueStr;; k( [) _+ R5 v5 g. S: E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( m) P5 r$ R2 l' t" p VariantInit(&pokeVariant[1]); E0 o, ?9 y) ^" @7 W1 H# t
pokeVariant[1].vt = VT_BSTR;' i; m! q/ ^5 c* R8 f3 m
pokeVariant[1].bstrVal = itemStr; + S2 g- J- }% _5 ]2 l3 Z 8 p% V7 S) }9 `8 u, S. v* x topicStr = SysAllocString((WCHAR *) L"system");8 ]/ B% @; v, t+ j
VariantInit(&pokeVariant[2]); 7 {/ I2 d0 B5 o& E" z) S pokeVariant[2].vt = VT_BSTR;9 g$ S3 m' h' ^5 s
pokeVariant[2].bstrVal = topicStr; 5 ^4 F1 ], c; x, n' L$ w/ @- t$ T( T; M2 s
// Set the DISPPARAMS structure that holds the variant.1 k* g. o Z& B) \ g0 w) ^& E
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dp.rgvarg = pokeVariant; % I% d P) q) a dp.cArgs = 3; . G# H3 Y8 w! X* B dp.rgdispidNamedArgs = NULL;) S1 e% F! E: O6 i0 R& j4 m
dp.cNamedArgs = 0; 2 Q' w- G0 ~, J ' v. y+ F0 G( ~ N// Call IDispatch::Invoke()* G, }! j0 x3 G! _
+ y* Y6 i/ }, R/ @1 ? hr = m_pDisp->Invoke( # `% }" \" s. L$ x' k pokeID,7 Y6 C8 ]6 b/ L3 l0 D
IID_NULL, # e' o9 d& d9 L LOCALE_SYSTEM_DEFAULT, ( m! f1 A+ g5 N0 B% @& y( c* _ DISPATCH_METHOD, " y* Y; z6 `8 z, ~3 \, l, M$ L &dp, 2 ]; t8 p) [) c+ D$ E/ Q NULL, 9 B7 d: W B Q& P4 a &ei, $ x6 G+ @. ~! s, v/ a0 `2 O! Y; v &uiErr); , `" G9 J2 u6 R+ ]$ _$ u$ }/ ]7 P( j" o' g% D& F$ M# t8 p/ A
SysFreeString(topicStr); * {0 @5 Q0 {( l SysFreeString(itemStr); [6 t2 H7 O1 Q# { SysFreeString(valueStr); . K$ k# ?' o, ]6 S* L( ^8 @* _, i5 w9 G. P5 Q E7 t8 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??? . W z) o% @' X: q) M4 J8 r( e1 B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????' c- |* T$ n8 c9 k) H" N9 k
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2.这是request的程序 / [8 ]1 x# H% e' y/ W/ e4 G! h+ }// Request a value from Extend % d- I8 z( l! u6 S: T$ C//: Z; X1 Y3 Y0 M: U4 I% O6 G
// Initialize the variant that will hold the BSTR. Set the variant's& h8 Q( d' G/ G2 Z$ a
// type flag to indicate the fact that this variant holds a BSTR. Place the ! o) f1 O* T6 c$ c// BSTR into the variant structure. ; h& E6 @. W5 m. d! _+ c [# l) c( {; c8 |; W$ k2 E; _
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ |; K0 ]. M8 B2 `3 j4 Z * M/ L0 }- I6 P0 n5 u& [. l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- T3 j3 w# A P, ^( \
VariantInit(&requestVariant[0]); 2 K/ q3 T* a. c
requestVariant[0].vt = VT_BSTR; $ U& `7 t' u, z) s- [% o) k& t requestVariant[0].bstrVal = itemStr;; R2 X2 j1 g8 \) ]5 V0 }
. R* F( i5 F8 h( ~' d% [" A5 ^ topicStr = SysAllocString((WCHAR *) L"system");$ w9 y8 v' [) l: f
VariantInit(&requestVariant[1]); 0 Z5 `7 D$ t+ J" g2 I/ M requestVariant[1].vt = VT_BSTR;8 r; g: c0 u! o" o
requestVariant[1].bstrVal = topicStr;% ~' F2 s5 C/ W4 t2 `
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// Set the DISPPARAMS structure that holds the variant. + ?+ O9 `* |' C5 E7 Y0 y9 E . Z1 N1 `! D( e- w/ b" Z6 Z/ }# X, J dp2.rgvarg = requestVariant; 8 a, F8 F) w- \: l# [: z+ H dp2.cArgs = 2;( d5 u2 s3 \$ c4 ^5 I% \; R* L
dp2.rgdispidNamedArgs = NULL;9 W; e1 D2 ^9 D& c
dp2.cNamedArgs = 0; & y% i8 \5 @. o- a4 q 8 s# G# P7 K& X+ y! P9 M var.vt = VT_EMPTY; - ^: o% o' ]0 W5 V - Z$ h2 a% V7 Z// Call IDispatch::Invoke() / y. V; @9 k& P( V4 V# n6 v- t+ C6 v , n& ^5 c& p+ V/ [. Q' | hr = m_pDisp->Invoke( , L( V1 Z( ^9 E6 }1 e0 r, m requestID,' }: Y/ a( j& h
IID_NULL, 0 X8 F- s. i B5 w, x; O1 E LOCALE_SYSTEM_DEFAULT, ; q- |, ^) @( u# ~6 b DISPATCH_METHOD,9 I4 E& m' l9 P" o$ T6 D* x
&dp2, 7 ^+ x4 [% T$ g' A9 F+ ?% b &var, ^- `1 Q$ C' ?( W0 o5 i
&ei,9 i, {: m8 m \" @# w3 @+ J
&uiErr);5 t; H# t" h4 d. H$ [9 _) E
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SysFreeString(topicStr);# `$ B3 i# M$ P$ b) w. u6 u8 Z
SysFreeString(itemStr);/ L5 B d& U* e/ p: y
请问该程序是获得extend里面的哪个值? 4 p) n9 @% M8 R; i/ N& k9 j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????