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:7 j& s( P! M; M+ p2 T( Q
Name = (WCHAR *) L"Poke";* ?. V/ o& c! t/ K- u6 f$ A
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hr = m_pDisp->GetIDsOfNames ( ( l, K' j# _+ [8 |1 A6 w4 B+ ` IID_NULL, // reserved& u" V% V. K( f* W6 J) ~
&Name, // Array of names to get IDs for2 M7 P( M/ d9 G/ {- ]# [$ ]
1, // # of names in the array' C8 N$ ]! c6 g3 \8 ?
LOCALE_SYSTEM_DEFAULT, // System locale 5 `/ b3 a( P7 z% \ &pokeID); // Array of IDs to fill on output2 ]7 _* q4 i' i8 F1 t. \' H2 U1 q# P4 U' M
i( z5 o) F+ f( z; U: G" h$ n if (hr)$ g( K4 X' K" v' `- A- @! \
{ , r" [: v7 n9 o d MessageBox ("Get Poke Unsuccessful"); & c8 L* t+ q! r0 b return;1 |! E3 t- _. h. o/ x" L2 I
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; l. z8 H2 T9 h3 k6 J/**************************传递数据给extend**************************************/ T3 V. _( l ~. K2 o; E4 l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& C) V. F+ V0 {1 C2 h
5 H4 i1 p0 k0 V" \ valueStr = SysAllocString((WCHAR *) L"1232");; S, @2 D7 A$ W& ]! l
VariantInit(&pokeVariant[0]); ' ]0 Z" H7 o* Z: M
pokeVariant[0].vt = VT_BSTR; ! m6 g. M u: F/ E$ ~. N pokeVariant[0].bstrVal = valueStr;) ~3 @1 j8 R; G; M# E
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( W/ J6 o+ |4 t: z2 ^0 i VariantInit(&pokeVariant[1]); $ X. _" L$ r/ p1 |- I9 C pokeVariant[1].vt = VT_BSTR;) [6 E; w9 `- G; Y# G2 C8 N+ F
pokeVariant[1].bstrVal = itemStr; ) N: X! `1 {- A+ m, F% I 8 t9 ^; ^8 [4 j0 S5 s8 F topicStr = SysAllocString((WCHAR *) L"system");* L! e2 b% j9 {! Y& O9 `* A
VariantInit(&pokeVariant[2]); * D9 ? C& V' v5 P1 y7 g( P pokeVariant[2].vt = VT_BSTR; ' N- }; h3 w5 V. f; F/ w# g7 v) m pokeVariant[2].bstrVal = topicStr;& L/ A2 v" s1 V9 f1 b% \2 P; Y" d
( _1 F0 s6 x3 K: d& x# O% W/ m// Set the DISPPARAMS structure that holds the variant. r- `. a) k- q, @# x" F
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dp.rgvarg = pokeVariant;8 w% t3 B `7 ?) Q4 n
dp.cArgs = 3; 1 n) g* K+ |! K0 K9 y2 O6 A dp.rgdispidNamedArgs = NULL; i+ P' |$ ]8 D
dp.cNamedArgs = 0; - z$ {& H: t2 Y3 ~ C, L) M: m3 E+ q, e- T, @! _5 O
// Call IDispatch::Invoke() # g& t" |5 L3 N% @8 _/ K1 ]) u 9 S8 M9 L W7 H3 E+ e hr = m_pDisp->Invoke(3 \" P$ ~4 j L$ N8 |) B# S
pokeID, " @+ @6 c0 \0 u2 \4 c IID_NULL,( U# X) w8 d1 X7 ]6 _& `
LOCALE_SYSTEM_DEFAULT, 6 o; ]' p4 |* m DISPATCH_METHOD,: ` G& j: w5 |- q
&dp, " y# g8 [2 P B( k2 a NULL,/ r9 O/ p3 Q' G! O" V- `
&ei, & _6 q6 l9 _: e6 a2 C$ W &uiErr); / l, l' o! a. j) h# Z' M# G/ m* ]+ x3 ~% f& `& w$ |
SysFreeString(topicStr); ! Y" Q" e, Y, k1 F+ `7 j7 h1 O+ ~! M SysFreeString(itemStr); S: c" v" O( X- y
SysFreeString(valueStr); / ^2 ?0 s. {' i& j! x0 G, s! V" t2 n5 k8 o6 W
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???5 j) K, ?! e; {
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???? % s% w* S/ v) G# f1 a , P+ M" l% T8 L* w U$ ]. G9 ]# i' U+ y2.这是request的程序 ) i( ]3 A1 k- ]8 v// Request a value from Extend 5 Y0 _, x G+ N// 6 s3 O' Q) B1 Z( `// Initialize the variant that will hold the BSTR. Set the variant's- ~6 U" d$ Y: ^+ W9 L
// type flag to indicate the fact that this variant holds a BSTR. Place the: s/ `" s' ^$ s( `
// BSTR into the variant structure. , b4 @' J% @% S8 \( s* w* b D* p" J" i, _# \9 e6 }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: o+ K, p, M7 @! `% {/ ~
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 }4 T- S( |. `% N7 q VariantInit(&requestVariant[0]); ; ^& K# B y' l( a6 t5 P requestVariant[0].vt = VT_BSTR; $ r) D- T; C ` k0 o) ^ X4 n0 E requestVariant[0].bstrVal = itemStr; 6 R6 J! j! k* K. r 2 a9 t* |3 s6 ~7 [3 |5 Y3 i4 G topicStr = SysAllocString((WCHAR *) L"system");4 t; [$ W' K( m! |/ R m
VariantInit(&requestVariant[1]); " Y+ K r5 U* E
requestVariant[1].vt = VT_BSTR;7 T7 [6 w$ D' j, \4 h, ?
requestVariant[1].bstrVal = topicStr;3 V% ]/ c d$ M6 o7 I
: I/ T& o2 V0 I5 G; l// Set the DISPPARAMS structure that holds the variant. M7 |$ b* Z* n) J) \- i! _. K6 `0 G9 ~8 N9 ]1 _8 G9 }1 V
dp2.rgvarg = requestVariant;. D" A% y" j% h3 Z2 d/ u8 n2 o6 r
dp2.cArgs = 2; * U, E i: L' `) K dp2.rgdispidNamedArgs = NULL;% Y% ]& B: ?* N
dp2.cNamedArgs = 0; 2 \. d. A c7 ~+ O6 ~# U7 s7 E6 N
var.vt = VT_EMPTY; * m y6 f( M4 D1 m# c" D( J& M4 _& C, s8 G2 P0 `' `2 n. c
// Call IDispatch::Invoke() $ r% Q# a1 m: l( ^- \8 _$ Q, ^ T2 J
hr = m_pDisp->Invoke( " l z2 @5 i6 C0 J$ m requestID,1 [$ Z4 |! e4 \) A; [
IID_NULL,/ A! P, w8 y; _
LOCALE_SYSTEM_DEFAULT, 8 o. X6 w% n& c* Y1 M4 X, O* ^ DISPATCH_METHOD, ' e0 g( U1 ^% h* q6 H4 i &dp2,# H f: o( D* B4 [3 w5 _
&var, - a/ @. o$ S5 t. ]% Q2 N &ei, 3 Y9 X& e2 B7 _ v7 v* \' ~8 l &uiErr); & `/ s2 x! ^+ b/ v" j+ K6 i) u v% U% L1 a; e
SysFreeString(topicStr); 8 J* ]2 t" J4 |' z; W. n SysFreeString(itemStr); 2 U0 y! t" @* \, e0 r5 A请问该程序是获得extend里面的哪个值?0 u$ F1 G9 f3 u0 C: Q' K. c
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????