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:3 V1 B: u( h7 d9 [
Name = (WCHAR *) L"Poke"; ; O4 N+ \4 k6 K8 D$ K 2 |* `5 n* ]7 |, Y4 x hr = m_pDisp->GetIDsOfNames (0 n, k7 M% K2 r: O$ g4 S
IID_NULL, // reserved ; N' S- W3 q3 e9 Z% r &Name, // Array of names to get IDs for % P0 a: d: I4 N. Z 1, // # of names in the array & p9 f, ^% @+ N+ e LOCALE_SYSTEM_DEFAULT, // System locale/ P& b5 d/ J. U7 ^$ T% v
&pokeID); // Array of IDs to fill on output7 m4 r' l" {) u* ~
( X+ G: e2 n. B: c% n: E' R$ f if (hr)9 p! y* F2 p% [- I9 q; R
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MessageBox ("Get Poke Unsuccessful"); . u+ ]$ F% I% c; o return; $ b) g( `; i+ ^) X/ a8 l( R7 j }& V/ B3 W* K9 s3 J
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/**************************传递数据给extend**************************************/ ^, B* s' L% h3 V9 b pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 P- u0 p( M: j) n5 V+ F
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valueStr = SysAllocString((WCHAR *) L"1232");' _0 M& K* N# t/ Y0 I0 O; O
VariantInit(&pokeVariant[0]); 5 O' A1 ?* O* c' r6 g pokeVariant[0].vt = VT_BSTR;/ k3 @' F' w4 H
pokeVariant[0].bstrVal = valueStr;# s. F1 |7 Z% K1 F
! w" E3 z( A% q# t. D' V itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 a, b" U4 ~0 }& W VariantInit(&pokeVariant[1]); 5 b% [& T* H3 g2 W. L! M( v pokeVariant[1].vt = VT_BSTR;) k1 J5 K; K! B2 c" m
pokeVariant[1].bstrVal = itemStr; # t, P2 a4 K A1 e: y) U- r . [0 i' j$ j( H+ j# ?9 C; `% A8 B topicStr = SysAllocString((WCHAR *) L"system"); / t- q6 k% m3 C2 [8 N) b VariantInit(&pokeVariant[2]); % B! I; E0 K( c7 O7 h1 S# t
pokeVariant[2].vt = VT_BSTR; ; F% n& J5 B s. I3 b pokeVariant[2].bstrVal = topicStr; ( m" a% ?; c( p- P3 D t- Z& u2 P
// Set the DISPPARAMS structure that holds the variant.; N+ F( O7 b. ]% H- A( I. p
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dp.rgvarg = pokeVariant;( T0 z6 @& o3 F
dp.cArgs = 3;5 x8 n. p) j, V1 y: I' z& S5 Y
dp.rgdispidNamedArgs = NULL;/ R6 d* K' ?2 N0 j x) k4 c1 s
dp.cNamedArgs = 0; . {8 O5 }8 e# a$ J7 \* d% d# g' S- }) N
// Call IDispatch::Invoke() 5 C, p1 w/ D# b6 K : x6 u! }; K. s. M C hr = m_pDisp->Invoke(+ r% N3 f" P: c! h
pokeID, D6 [$ F5 p' L/ S
IID_NULL, ) t1 N j; G8 M6 a LOCALE_SYSTEM_DEFAULT, 1 `( _( E# `/ z0 n7 C DISPATCH_METHOD,/ U5 ]! v* Z# c" d# W" q4 P
&dp, 6 c! }) G- b# R' I7 ^* X' r& o @ NULL,; o7 d0 p1 g/ K }7 s
&ei, 4 \* }. a, V/ a$ R, D2 p% J# S &uiErr);7 e+ R7 Q6 _4 N$ ~) L0 N
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SysFreeString(topicStr);8 c @+ |5 j6 _$ Z# w- S
SysFreeString(itemStr);' b7 N1 L$ [, u' ^
SysFreeString(valueStr);, ^2 t. Q% k" H `$ s8 z+ n. x
. t. O1 D+ J4 g5 U4 K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???7 M; k0 p- C" d. l" N7 Z0 l' i
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???? }' V6 K- E+ N& f" R% B
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2.这是request的程序 ' @: J( g( p4 n2 R// Request a value from Extend1 r- W5 s: ^/ p. t8 J
//- \, c- ?4 _& r! m5 W& t9 |9 n& [
// Initialize the variant that will hold the BSTR. Set the variant's 0 N- X) U5 o' |5 y& p// type flag to indicate the fact that this variant holds a BSTR. Place the # y9 y$ M4 B9 X" x) I// BSTR into the variant structure.% h ], L+ X \/ r+ ]
* b0 v, y7 g9 R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 |* y5 K0 N: N' C1 y1 | ' n+ _* B+ J+ `7 j
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" w2 B* [# ]0 b, y# a! F" H
VariantInit(&requestVariant[0]); . E( `* b6 B6 r* ~' W0 Q$ T" s
requestVariant[0].vt = VT_BSTR; " o. x& ^5 g* v requestVariant[0].bstrVal = itemStr;2 ~; }2 ]+ ^, Y4 n7 b( C
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topicStr = SysAllocString((WCHAR *) L"system"); 8 W1 {0 ]8 M% P7 ^, Y6 _' | VariantInit(&requestVariant[1]); # S4 t: S3 k5 m requestVariant[1].vt = VT_BSTR;: Y" m; a% S& V+ k$ \
requestVariant[1].bstrVal = topicStr; 3 W1 @" V- A" c$ z6 K7 J : B/ K& f" Y- u2 E, O6 G7 g. v// Set the DISPPARAMS structure that holds the variant.3 N$ T. @: s( S- [7 N
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dp2.rgvarg = requestVariant; B/ _" l1 g; {) \) q dp2.cArgs = 2; 0 x3 `* x, |8 G4 c% U1 U dp2.rgdispidNamedArgs = NULL;) O o. g6 K6 w( F' w8 `/ g( |
dp2.cNamedArgs = 0;; x& N8 H7 D/ l9 b' G
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var.vt = VT_EMPTY;. @2 n3 i# i" n0 B8 y+ G* H* r
1 P! q- J Z5 O2 d6 V// Call IDispatch::Invoke() ) t/ w. z U) M: Y1 n/ \1 U l1 z5 o" ~$ T: b
hr = m_pDisp->Invoke( 2 b+ l" @; u/ g4 I2 m8 H requestID, : f+ d! C0 L6 r' O; y# x2 z IID_NULL,. P$ T& l9 }* H8 C8 f
LOCALE_SYSTEM_DEFAULT,( |* L$ W4 A8 D8 _, o c
DISPATCH_METHOD, - a5 m+ i6 o- k6 C1 k+ ^ &dp2, 7 P8 Z3 S: Y! {1 D! g* R7 ] &var, 9 c: `) y2 y- M8 T &ei,2 b0 |2 s7 @/ a1 B- A
&uiErr); ; Y1 r! ?4 V( b+ E* b! S* Z% M ( ^/ W4 R {/ x/ X' g SysFreeString(topicStr); 9 x/ }0 q/ {* k8 E6 x SysFreeString(itemStr); , X) F1 W$ r" ^/ ^( |2 ~请问该程序是获得extend里面的哪个值?. D4 \: x; A/ q6 _" \! k
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????