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:5 M; H; \- K' P! [. c
Name = (WCHAR *) L"Poke"; : c6 `! o5 D$ @; s6 \4 d 4 r% B0 p L0 W hr = m_pDisp->GetIDsOfNames ( : o w$ O* R% I9 o/ ^" G: n! O$ j IID_NULL, // reserved 3 P" u2 o, n) |# g" Z! P5 u' q; e &Name, // Array of names to get IDs for ) U6 g, |/ k2 P3 r" k 1, // # of names in the array& V; m$ p$ K+ d# w w. @; Z8 o; c
LOCALE_SYSTEM_DEFAULT, // System locale: s& _% M5 P. r) x/ S; Y
&pokeID); // Array of IDs to fill on output " V- E% ? T }3 f" J7 t 1 N+ g9 E$ c9 P' X5 e- L9 X
if (hr); w" V! }7 v9 q' K. O
{ + p8 f$ J9 y- S7 n$ e' } MessageBox ("Get Poke Unsuccessful"); $ x$ A z* L' m \6 z return; + ?/ `) `$ r7 b }4 `% x& P |2 Y& u: v6 Y9 [
( C5 _+ ]& K; k J* F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% B) Q! i+ l, g/ ?
VariantInit(&pokeVariant[1]); T2 e1 O5 ]- \/ b( `2 T
pokeVariant[1].vt = VT_BSTR;6 D$ s' g1 t& t
pokeVariant[1].bstrVal = itemStr; 2 c! Q# t" x9 O9 S* |( c, Z5 @# x$ O0 b/ L4 R, z
topicStr = SysAllocString((WCHAR *) L"system"); 9 O4 g# V% {5 |2 L" g; ~ VariantInit(&pokeVariant[2]); d# y$ b$ J% y6 k1 I. B4 x pokeVariant[2].vt = VT_BSTR;# s0 s' T. U" A! r# I! C
pokeVariant[2].bstrVal = topicStr; - N4 i2 H! @) Q+ v# Q% O $ z+ x% g/ x+ E// Set the DISPPARAMS structure that holds the variant. 7 Z/ z$ s; r) |. y9 | 3 H! U* b, @& D% h0 _/ h dp.rgvarg = pokeVariant;, n$ s% e. v9 p% `1 v+ S
dp.cArgs = 3;4 } k3 q2 h4 w J6 y# r
dp.rgdispidNamedArgs = NULL;1 w# j0 M1 u0 e; W+ d
dp.cNamedArgs = 0;$ U, F6 c# p$ ?2 X
+ o9 @- _4 E/ ^; ~& r// Call IDispatch::Invoke()2 o# j! g9 A5 d4 i4 ]; s( A
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hr = m_pDisp->Invoke( 8 B0 ?( _, p" v. | pokeID,* j% i+ q5 a) V" m
IID_NULL, 4 U1 [0 t% e' W9 q9 P LOCALE_SYSTEM_DEFAULT, ( F& n+ J% ^; K DISPATCH_METHOD," \0 x7 E1 E9 C5 _1 f
&dp,1 \2 K! P) m2 Y3 W7 K; T0 _6 d0 E
NULL, + [1 _; v, f& O+ {( Y: W7 q1 Z &ei,% |4 `% e% U1 @% u% k$ ~+ F0 K
&uiErr); / u7 X, e: i" n" N h & `! O# t h a2 P" B8 x# } SysFreeString(topicStr); 0 o9 O: N+ ~! P: o# b3 q n# e SysFreeString(itemStr);4 Q5 F h) M/ B. U8 h/ R
SysFreeString(valueStr);3 }) t& N% `/ l& X3 t" 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???- ?% n+ N% w, |) p8 X
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????8 [% g9 z7 [* y1 n& k3 w6 I; x
/ Z9 h c+ N6 T \- s: P- r/ j ! m" T$ m5 O6 p6 n8 F2 H( S2.这是request的程序 & _, p/ H8 n$ S, C4 B; L4 S; D// Request a value from Extend 4 e% t! b6 U& Z4 }' e/ ~// 5 p9 G5 z8 J' n* z// Initialize the variant that will hold the BSTR. Set the variant's# d( {: e" f2 x; I& S; b! m: n
// type flag to indicate the fact that this variant holds a BSTR. Place the , n: M$ L, u" o, P// BSTR into the variant structure. h' J) M" ?) i$ u/ Y- L& N
2 b+ ^/ U' c9 j& J$ z$ g requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. B' z) J# x2 @2 o! [! b
: N9 `" @- |# K8 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( F4 f# }. B8 @! x' \# S3 H
VariantInit(&requestVariant[0]); 7 Q6 C U$ u/ V+ o% c5 w8 s requestVariant[0].vt = VT_BSTR;( h6 A! N9 ~1 R# S7 ]
requestVariant[0].bstrVal = itemStr;9 N8 v1 I1 ^+ F* _3 D
& j3 `+ E# ]: d6 L7 Q+ p
topicStr = SysAllocString((WCHAR *) L"system");% \1 D/ l- M0 q5 [
VariantInit(&requestVariant[1]); 3 Y9 X. w' m4 ^) }6 ~7 y$ G requestVariant[1].vt = VT_BSTR; M/ b, Y/ O7 q9 f5 G1 t requestVariant[1].bstrVal = topicStr; 3 { W: W0 x% e7 o8 _ 6 ~- |* z+ T& s7 g// Set the DISPPARAMS structure that holds the variant. % g! j8 V/ Z- ~% G& L: | 2 Q6 W* [! T6 {1 G0 n' B dp2.rgvarg = requestVariant; 9 o+ c8 W4 ^3 h dp2.cArgs = 2; 9 B! c* u9 J$ e# B: H" j$ j- N dp2.rgdispidNamedArgs = NULL; & v' r3 ^4 f5 Z( U6 l& E( u dp2.cNamedArgs = 0; " `! ^1 x! a4 ~! L/ C6 o' {) |) J) s: _( Z( H2 M9 Q% n, y
var.vt = VT_EMPTY;3 @; H% U9 h; X3 q! o
5 J& E4 j3 K2 {- F9 ]8 m5 I* ]// Call IDispatch::Invoke()1 {% m1 J5 U! Z. W
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hr = m_pDisp->Invoke(/ ^+ |8 P0 Q, }
requestID, + w/ D9 g& g% }* _) m8 e IID_NULL, # f T3 y8 D: u' E& P LOCALE_SYSTEM_DEFAULT,% ]: t6 [4 P, N9 o1 q
DISPATCH_METHOD, 6 U1 H! A! |( ?& A" I &dp2,% H; P$ ~. R: g; H
&var," }- b( i; g x1 W2 f# T
&ei, - R8 `) @ O6 x! I8 Y. O4 z- x &uiErr); 0 d J4 n9 y' j7 o- [0 B" B6 p8 o2 p# [0 y2 r
SysFreeString(topicStr); ! u! T! G* k- F* l) `1 E8 d SysFreeString(itemStr);2 }1 Z" C; a2 o
请问该程序是获得extend里面的哪个值? ; u$ y# N( }4 K1 l/ w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????