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:# r0 u' A" A( Q$ Z
Name = (WCHAR *) L"Poke"; - x g* o7 N/ A: W u F- ]; x# q) H9 A! A+ g4 t hr = m_pDisp->GetIDsOfNames (2 V9 r. ~2 y( O" t g* Z
IID_NULL, // reserved $ y K3 s+ y/ o, f$ b5 R ^ &Name, // Array of names to get IDs for5 a; \8 }* ?7 | x3 k8 s' v
1, // # of names in the array8 R! v* ?2 p1 h& ] @0 O6 Z1 o
LOCALE_SYSTEM_DEFAULT, // System locale8 y! b) @! f+ A% A
&pokeID); // Array of IDs to fill on output 6 U+ d# p. q$ f. `# h( C/ p, Z ; c# M( @% S$ z if (hr) 2 B# E) k2 r+ M j# ` { 3 {+ y# ]; A. e0 k+ K MessageBox ("Get Poke Unsuccessful"); 2 ~- H0 |2 j: F% O return; . F$ W; d2 D' b }3 K3 _4 }; Q* c! r2 _9 Q
( O. u/ g9 d" j( b- q, G7 V( V0 X# }! |/**************************传递数据给extend**************************************/, } i3 I) I1 y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % ^# H& X5 A# F7 t( m+ Y& g : c2 S4 H) l {, A
valueStr = SysAllocString((WCHAR *) L"1232"); 7 g: K- Z/ ^/ t- }# A5 l) F VariantInit(&pokeVariant[0]); 5 r/ |$ h1 ^1 o/ ]/ S$ L
pokeVariant[0].vt = VT_BSTR; $ u: m8 k4 ]5 i% \4 s2 P* X' r5 y D pokeVariant[0].bstrVal = valueStr;. l' l, z/ x. z' A
- ^& @/ u. m% H. M. _; [0 Z7 U- [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 C( P9 ~, p0 M$ y
VariantInit(&pokeVariant[1]); ' e- z0 N6 s R% v B
pokeVariant[1].vt = VT_BSTR;5 V) D* j5 ^7 N
pokeVariant[1].bstrVal = itemStr; 1 K$ {# @+ b' E4 s! M: q. U9 U- }0 B4 _
topicStr = SysAllocString((WCHAR *) L"system"); $ M( b4 p: A9 G6 E+ X; O VariantInit(&pokeVariant[2]); : q9 l- c& z) [* L. d
pokeVariant[2].vt = VT_BSTR;; m; |! E4 R- b% o
pokeVariant[2].bstrVal = topicStr; / k" w/ S- K { U5 Y: u8 B7 I H 5 M. C1 _. T! W, d5 \+ j' s+ f// Set the DISPPARAMS structure that holds the variant.7 r8 ], s D- x9 b% g/ V% m. |
# e: l; T5 j4 E9 U6 ~ hr = m_pDisp->Invoke(, |+ o$ R) \! l2 w
pokeID,5 c) R5 k; V. r3 `5 u) ~
IID_NULL,: U% f! p4 S7 Q' }( ^2 C, y
LOCALE_SYSTEM_DEFAULT, % o) G) M4 ~6 M( ]' [2 N3 t DISPATCH_METHOD, 6 V! R) E4 b6 i# B# x &dp, # L/ z/ x; `$ o/ o. @( U) e" t NULL,$ D% g, f9 L" T7 I5 ^7 l6 C
&ei,' K5 K; P+ N) F3 ~1 @
&uiErr); 6 h% R. \+ `' [4 ?& N/ ]9 b1 H ' W! q: H. L$ m- F; U4 {; M SysFreeString(topicStr);' N0 [$ `# M4 u# ^( P2 O
SysFreeString(itemStr); 8 }) Q( m# P" K) g7 L K, ^' H$ l SysFreeString(valueStr);3 r/ q' |1 U8 o7 `7 `+ r' q
& Q; B# ^. T5 L `* U0 W; T! 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??? ( M# U1 c3 Z' D* k S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???? * k) b( H) |3 D0 r4 r- z5 X0 |; w9 L+ e3 M5 q B. C( ]3 i1 a
8 }" i2 d. z4 w0 w: ]$ m B, k2.这是request的程序9 x0 h0 I* O S5 X& c2 A. h+ c, N
// Request a value from Extend: S5 b+ f, X# d6 W* R& x
// 4 f1 l& b0 Q5 Y4 ]3 P// Initialize the variant that will hold the BSTR. Set the variant's ) X( J e/ o$ }+ K" N: X// type flag to indicate the fact that this variant holds a BSTR. Place the9 @7 K! {( d, M4 v
// BSTR into the variant structure. : v! V% X: \$ f1 l: C, q& r+ a, W 1 D& a5 L% R1 h g. R2 _& X9 v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 Q& }. M& P0 L/ H) B u
( {( e4 @0 Y) L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 K( G3 Q$ I6 K6 ~- s* s( x: G8 K1 U& X* E
VariantInit(&requestVariant[0]); / S" l4 C- R- g5 j
requestVariant[0].vt = VT_BSTR;) s8 @2 v5 o# `
requestVariant[0].bstrVal = itemStr; 8 x( R+ |: }9 M g 1 `% i) ?5 @1 K% b- R9 W1 h topicStr = SysAllocString((WCHAR *) L"system");3 ^4 F6 q1 b% f+ k8 L
VariantInit(&requestVariant[1]); 0 M$ z# D+ b: i1 i% i+ [& Q# O0 V
requestVariant[1].vt = VT_BSTR; 8 }3 c( _9 W3 d2 ]( \% I requestVariant[1].bstrVal = topicStr; ( B( | V! u5 n + X' Z) D% l( D6 s( T// Set the DISPPARAMS structure that holds the variant.; P' C0 t& t: X' h/ [( ~4 X
' ]/ b) x% N% v3 k ~, _3 J/ e
dp2.rgvarg = requestVariant; 8 ^9 q9 H& }; y% s/ |3 \ dp2.cArgs = 2; % s* [8 _, Q; ]/ ?2 d0 e dp2.rgdispidNamedArgs = NULL; * w4 C# _$ p7 k" j+ I% h: c" G dp2.cNamedArgs = 0;2 E% b# P0 r- |6 d
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var.vt = VT_EMPTY;2 g& C8 o. _' h' R4 d
, U) D! o! ?1 A l3 I
// Call IDispatch::Invoke() % Z& M' j+ q2 F ; n8 E' k6 a. P' }& S/ M hr = m_pDisp->Invoke( - t- x1 k' I5 |0 J5 F: ?" c5 X requestID, + D/ f; Y( l( |" B% {0 V1 t! C4 w# a IID_NULL, S! d# u2 Q& B: x5 ^ N LOCALE_SYSTEM_DEFAULT, 5 x1 {5 q8 O# W DISPATCH_METHOD,2 ~2 j& D5 p3 C- H
&dp2,& ?& _ r7 H! Q& A4 o$ |
&var, : \; P$ d0 V# A. g: Q &ei, . _/ Q7 r6 i: J9 ^, N &uiErr);7 J9 w/ U* v1 ^/ K
( K6 }+ e7 B+ e) e; B6 ?- t6 R
SysFreeString(topicStr); / `2 }0 v I! K" i8 H# O' C SysFreeString(itemStr);( J/ q: ~$ P7 D" D+ v6 a
请问该程序是获得extend里面的哪个值? , h1 }0 X0 A( k, K0 l) a' F2 l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????