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: 6 ]$ ?- a/ T9 RName = (WCHAR *) L"Poke"; ; o* P" T1 I. w1 H / u6 l% R5 O# H; d hr = m_pDisp->GetIDsOfNames (5 O' g7 g- r+ S: b! v1 ~# r
IID_NULL, // reserved1 D4 T! c B5 [: H( X
&Name, // Array of names to get IDs for ' p. i. V" Z s' K e" U S- Z 1, // # of names in the array! y. _# m: [5 ~# u: T$ \; F* b0 h4 E
LOCALE_SYSTEM_DEFAULT, // System locale ) N5 c" U- c* h, [; w &pokeID); // Array of IDs to fill on output 4 I1 z4 q Z7 K" H# _2 }) {- l. D# O , n, A, R, Y, U6 v6 T! R0 v; G9 x if (hr) 0 ^8 Q9 p, d: d/ d1 s2 t) Q d/ c { K1 f$ I7 M" J% P6 P
MessageBox ("Get Poke Unsuccessful");0 Z# H4 y3 B: l9 Q' s, p E
return;# w2 [& K: B7 e
} / ?% e/ `! m F# R% j! H 9 o# _0 O2 p k/**************************传递数据给extend**************************************/( \; H: L* t; b# T6 }- C
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ b( j1 j% l+ S# i/ F
7 f9 ^3 v8 Y: S valueStr = SysAllocString((WCHAR *) L"1232"); 1 y1 W& U; ~1 g7 ?" o VariantInit(&pokeVariant[0]); , n( S- U" i4 C& g2 l0 k9 A; _
pokeVariant[0].vt = VT_BSTR; $ M F2 k" i' k. q. n9 E% L pokeVariant[0].bstrVal = valueStr;6 O8 w6 s. C# z; \( a
6 j+ T& P5 v7 E- M. y' |: p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 C& l$ Y5 q4 i8 J# m& V+ R5 n
VariantInit(&pokeVariant[1]); 3 @" V( Y, |; m& c9 p pokeVariant[1].vt = VT_BSTR; X) m4 \# t2 n( o; \- X
pokeVariant[1].bstrVal = itemStr;8 w5 n! [4 k* q2 |
Y. I2 y; u a2 z; G
topicStr = SysAllocString((WCHAR *) L"system"); & I9 ^' m z+ l2 t& \; S VariantInit(&pokeVariant[2]); 3 P3 ]# ]2 Q, x0 q1 G3 j pokeVariant[2].vt = VT_BSTR; 4 ` e {* S# L7 o pokeVariant[2].bstrVal = topicStr;' R+ x1 [& ~7 G1 B7 w3 W
% A0 ~8 [& A0 C9 W8 h0 A9 I3 V// Set the DISPPARAMS structure that holds the variant. 5 t3 B! k! F( F. S0 N8 t' x% P: A3 e7 T* d, t
dp.rgvarg = pokeVariant; ' m+ f7 f! f# F) w+ }( z dp.cArgs = 3; % ]3 O! y8 k# [( P$ u9 [* b* g1 Z dp.rgdispidNamedArgs = NULL;# W- x, s; f+ o" h6 L+ R
dp.cNamedArgs = 0;1 P& r6 K4 } k6 N% @
4 T% j/ E/ Q: z// Call IDispatch::Invoke(), Z0 M; ^2 C* J# }9 w0 O& n4 A
# u; z( O8 S1 Y0 [
hr = m_pDisp->Invoke(: D3 }( K& N) K9 K: b* S' C4 [
pokeID, " O" @% N& d" g% U+ d: v% U/ | v$ J IID_NULL, % h4 v+ m' v. S LOCALE_SYSTEM_DEFAULT, 5 }. w( g G( @1 f2 G8 s' @- K/ r DISPATCH_METHOD, # R: q. V: t% h6 l2 ?; X" R) v &dp,. U4 F+ O' n* A- }0 }* o, v
NULL,. G# Z% G- A' t( @( k
&ei, " h1 o _* b& F$ s. x- m- C9 T3 w &uiErr);6 @8 [. \* F* H. x
$ R: o; N2 N* g SysFreeString(topicStr); * f/ `, Z- s& s- i. `! L9 C SysFreeString(itemStr); 3 r; C0 P" Y/ w: n" G- z4 ]2 } SysFreeString(valueStr);! C, Q5 |3 X6 u7 v
3 A+ J$ e! |2 c! u
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???' |8 z: Z$ S6 [4 ]# d( Q" f# C$ B$ r
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???? / a+ P, ~! I* y( x7 L2 i7 t" t9 `3 \3 f; t7 [+ y
1 y r9 `- E- v( T7 L3 \4 r
2.这是request的程序" I, W3 H& W0 H- ]( {# V
// Request a value from Extend) i0 @" i$ t# n. u$ I3 ^& Q
// 2 |# E% ^, E9 {- w// Initialize the variant that will hold the BSTR. Set the variant's : }' q2 ^3 X6 f5 b// type flag to indicate the fact that this variant holds a BSTR. Place the : ^9 J; U4 z9 g8 \6 b4 g8 r3 W// BSTR into the variant structure.) y& Y( J$ L3 y4 X& }# ]7 m; v: e, E2 Z
% a) J/ B1 G' S: `1 A; U
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( E# V3 ]: r2 Q; F( X% @, R " S; M& ~ [5 R% c1 U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & f! }4 G& M% K# a. ]3 l VariantInit(&requestVariant[0]); ( J" O1 A# G! n2 x requestVariant[0].vt = VT_BSTR;2 e0 z6 q: A# }* _% s0 ~' q# Z& C
requestVariant[0].bstrVal = itemStr; - p: G0 z0 z9 R8 C m- g- X$ C% _/ Q( F1 M7 e
topicStr = SysAllocString((WCHAR *) L"system"); + I' J6 P9 H2 R5 N+ M VariantInit(&requestVariant[1]); " v# Z0 q7 L+ ^: Z requestVariant[1].vt = VT_BSTR;3 \9 } b; M9 j* ^8 V1 B/ {4 F! @
requestVariant[1].bstrVal = topicStr;( k2 E# d% c6 u* [$ \0 W
$ l7 k! R4 x+ S8 v0 t// Set the DISPPARAMS structure that holds the variant.+ R+ F$ e: e( ~* t+ X
$ ~- D/ ?, i2 C: n# c$ G
dp2.rgvarg = requestVariant;* m& ^( ?! t( S: u) v, M, i
dp2.cArgs = 2;- a+ Q! [0 |5 O/ p0 m- v1 q/ H P
dp2.rgdispidNamedArgs = NULL;$ }/ v& J$ q' Y
dp2.cNamedArgs = 0; 6 c: T- r: S. V0 ~ 0 K0 q# W( o0 P& s% {/ ? var.vt = VT_EMPTY; 9 U% A8 B, B5 Y0 o " J3 b1 H: N, I4 p5 T# F// Call IDispatch::Invoke()% V7 g$ A- a! ]* c: r/ t7 s
6 D: Q; N( A) T0 ~0 Z5 M
hr = m_pDisp->Invoke( 5 v" ]# I& V2 o requestID, ' R" B) x, X; }9 c; T: B, Q IID_NULL, 6 q" }# `1 b% U$ O) ~ LOCALE_SYSTEM_DEFAULT,7 ~% m8 k1 C0 W0 f6 m3 b$ P$ a
DISPATCH_METHOD, ' F# j; S/ s- m& R' I F# x &dp2,, I1 G: E7 E# i: c, m. h
&var,4 ~6 w: i) U$ p R- `+ u. `
&ei, G1 K8 E6 S8 l8 T# O" y
&uiErr); 3 g& J+ G4 c4 B- L& J, [4 s7 k " U+ Z1 ]( u" b; _ SysFreeString(topicStr); 3 E4 d) S. E" S0 B SysFreeString(itemStr); ' J- K1 g+ N0 a8 X# D! w! K请问该程序是获得extend里面的哪个值?$ S/ {5 |$ f+ b& J2 n J0 g
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????