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: # X/ O+ z! G8 n/ ]Name = (WCHAR *) L"Poke";* t. U) O# ^: r5 N9 W- c, t& t4 n
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hr = m_pDisp->GetIDsOfNames (5 {+ {8 m; X# R& q; O) `- `) ~7 f
IID_NULL, // reserved & U- x! Q# l s1 I; F6 n3 J &Name, // Array of names to get IDs for 2 @ B. c3 o. K w& m( ] 1, // # of names in the array % ]! _4 S( J4 q% n; X/ {3 K LOCALE_SYSTEM_DEFAULT, // System locale 5 C4 \( [$ O' D &pokeID); // Array of IDs to fill on output 5 U1 P D5 X* Q5 K1 Q 8 J E- D: z. b& E if (hr) 2 e, V3 R& f. ] { + y* @5 W$ h* P: L. v MessageBox ("Get Poke Unsuccessful");/ i6 M; }& x- i# ~- L9 X$ U
return; % H; J1 j [( e9 s" {* D$ T* f } : E; B) T% K( n3 K8 _3 O% C$ w' d* x2 {8 z c
/**************************传递数据给extend**************************************/+ c$ P1 u2 Z4 [! D6 I& l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * P+ y( b9 G- ~; I: g* n : z. ~/ g( t6 h) E# ]8 P7 L. z valueStr = SysAllocString((WCHAR *) L"1232");- t8 S8 E$ w, w) n/ ^" w
VariantInit(&pokeVariant[0]); 0 Y( @ g6 d5 j
pokeVariant[0].vt = VT_BSTR;. r/ J; n0 e" k1 v
pokeVariant[0].bstrVal = valueStr; 7 W' L# n) p/ A# N! c: C! r6 v( J- S" }" c8 X% S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 O- p' d# b2 Y- i! `& [3 }5 m VariantInit(&pokeVariant[1]); $ d' d/ Z" I. v! Y5 x. l/ a5 e pokeVariant[1].vt = VT_BSTR;' k B% j# |# m
pokeVariant[1].bstrVal = itemStr; 4 L8 _+ v4 [$ ? & B, r6 U. f9 _) I' G0 `$ g3 m topicStr = SysAllocString((WCHAR *) L"system");& w; G3 A* l7 _: @) W: w4 m
VariantInit(&pokeVariant[2]); : c2 C' ?' {; C: {! H pokeVariant[2].vt = VT_BSTR; 5 W! P* g0 j# ~# Q4 X pokeVariant[2].bstrVal = topicStr;1 Z: p" \, |) W7 c. n
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// Set the DISPPARAMS structure that holds the variant. ' M! C+ I8 Y7 _- W, Y2 c! ]+ r) p$ ?( {: g5 o
dp.rgvarg = pokeVariant; / u3 h, Z+ X( Y, m8 j% o dp.cArgs = 3;/ e$ ^: s' [* p6 l
dp.rgdispidNamedArgs = NULL;: a. Z0 _0 V& P
dp.cNamedArgs = 0; 8 `$ r( D1 m8 f4 s' i) B7 [& P* z% p9 d8 ]5 f
// Call IDispatch::Invoke(): ^: f ?- I% g- v
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hr = m_pDisp->Invoke( ! Y" v1 D1 E# q6 }0 n9 Z4 I5 O pokeID, 4 Q& D, b6 ?! o8 C) U- E6 P# A IID_NULL,/ y( `% E% E( K4 j2 @
LOCALE_SYSTEM_DEFAULT,& H& J2 [1 t+ s; }0 p3 _
DISPATCH_METHOD,5 R3 s3 }6 C% F9 G: ^ Y
&dp,) ` M$ w! q( C
NULL,0 ~* s/ C6 t7 K. E, j
&ei, ! c6 H- L1 V y% V4 B &uiErr);. j: Z/ y& v3 t: S& c, g; W
+ T& C0 Q% `* Z4 f: Q. J/ @ SysFreeString(topicStr); 1 P2 g. _ T4 ?7 O N, J9 v5 p SysFreeString(itemStr); ( i, p8 a# x. c SysFreeString(valueStr);) ?1 _ R. b9 S
. g; m; M/ z! x( X" Z0 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??? 6 _6 _* i5 X# u" ]6 L. q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???? ; L0 e+ z! K! N# J! K 8 {, h4 N' E% v: g # y# m" J, }' \; e5 N2.这是request的程序 7 m) i# f% |! N// Request a value from Extend 1 n$ O: ^% N1 S$ d3 a// + [& n" x3 Y, V// Initialize the variant that will hold the BSTR. Set the variant's 0 X: g# m3 P3 N) J// type flag to indicate the fact that this variant holds a BSTR. Place the6 f/ X* d" {, Z: k* C. I4 m
// BSTR into the variant structure. 6 f3 i# Q6 z8 U; u4 B4 x) r8 M3 g3 c . n2 o: K. z2 s4 K0 { requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); $ S3 S X6 `, p. M7 _2 A+ [ . M l5 ~. T* |/ k y. [7 d itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 G* i( X& d' K$ f# }/ F/ x
VariantInit(&requestVariant[0]); / ^4 \/ i2 @$ a3 d: ?0 ?9 e( \ requestVariant[0].vt = VT_BSTR;- h- I( ]* Z5 x a% P* S- d
requestVariant[0].bstrVal = itemStr; 2 s, x. B: N9 q* S4 V+ \& ], S4 e. _, I( `. U
topicStr = SysAllocString((WCHAR *) L"system"); & n$ m/ G# F( } VariantInit(&requestVariant[1]); 0 M1 l; b+ G: K) l- w7 E/ d- D requestVariant[1].vt = VT_BSTR; " R3 b/ W' Z* E& [ requestVariant[1].bstrVal = topicStr; k! f- L, W/ E5 X 7 T5 n2 X9 |9 d! x2 l// Set the DISPPARAMS structure that holds the variant. 6 w0 g+ Y+ D b/ d# O* W D. J # s2 Q7 j5 P- W0 |& H dp2.rgvarg = requestVariant; 3 \" o! F# c/ a2 x dp2.cArgs = 2; ; K: ]( T1 ?5 Z2 k+ E dp2.rgdispidNamedArgs = NULL;1 l4 S% `* i4 t, M$ d
dp2.cNamedArgs = 0;$ I2 h% h" y+ x# b
8 w" r3 r! J3 P2 ?' O* ]) u0 S: K var.vt = VT_EMPTY; $ y# E+ p/ v. \* c* {9 R6 T . Z: N4 T; }4 Z( Q// Call IDispatch::Invoke() / N- V Q% w* a: \* k7 n) G8 ~' L, i- t, @4 b, p' S+ o1 `
hr = m_pDisp->Invoke( 4 O) o) x! \) u! i4 o2 T/ z requestID, 6 g I q! ~* V# {3 W3 k% T IID_NULL,% V& ?9 ^, |5 |8 {9 p5 P, ?, p
LOCALE_SYSTEM_DEFAULT,9 b# t* L! Q0 c/ i
DISPATCH_METHOD, $ m$ Y5 u. I) S5 p, l &dp2, - y8 v+ }- Z! T X. F! ? &var,/ B! F$ v% y- L; b& U$ P! y
&ei,: K4 k; X5 D. N* P% L: W
&uiErr);" ~) ^8 w0 c# M& Z+ _9 W: F, ~
7 j1 ?, c6 t' f0 z! B# J+ R6 k, ?$ [ SysFreeString(topicStr); $ y+ m* o& e" ^ SysFreeString(itemStr);! f x `" O; J3 o2 a
请问该程序是获得extend里面的哪个值?0 h U4 K w+ E" g' f; U
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????