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: , ^$ v2 n* t3 S. E+ j& t/ eName = (WCHAR *) L"Poke";/ H2 A8 O0 c) N: Z& a0 w3 O
2 R J3 N- K0 P hr = m_pDisp->GetIDsOfNames (2 r! _) \0 o) Y0 c0 I* n
IID_NULL, // reserved 2 D8 J. |% J" n2 ]2 R &Name, // Array of names to get IDs for! `' \+ N O6 h& {5 W
1, // # of names in the array1 h( y7 @6 h6 _ y. v
LOCALE_SYSTEM_DEFAULT, // System locale & `, C* B0 n, r6 v% ^ &pokeID); // Array of IDs to fill on output5 W- I8 U7 C( t1 S
2 @0 E) r7 z* }8 |: i if (hr) ! P( j6 w: Z; F2 M1 }! S { , W' G7 ]1 E- s& }4 x MessageBox ("Get Poke Unsuccessful");: x% ], L8 m" @! U$ d
return; 9 x% ?7 O$ c, t- t" M }7 }6 n& e8 i5 \6 A+ `4 e
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/**************************传递数据给extend**************************************/ ; [' A- t* J u# g6 J8 l* d pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 O. D E8 i# |1 x( W
6 r. B$ s0 W6 E7 y valueStr = SysAllocString((WCHAR *) L"1232"); 4 N3 V3 M% m7 b; F. U* H VariantInit(&pokeVariant[0]); $ \0 `7 R: p* r3 c8 ~
pokeVariant[0].vt = VT_BSTR;3 z2 t4 ~7 p- ?+ g- b4 x+ i# d
pokeVariant[0].bstrVal = valueStr; . q4 p& {. U z9 p& _( e6 K - E8 O% @5 g# g/ q# C0 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ V: b6 ?0 b" k7 c* @& d: m% K VariantInit(&pokeVariant[1]); ! h/ Z) c6 ?! n( e2 H% i4 r% Y pokeVariant[1].vt = VT_BSTR; $ l9 S) ?/ g% \# ~! e# ?6 P N) B9 l3 i pokeVariant[1].bstrVal = itemStr;+ l2 L- E) e# l9 I" T
7 x* k1 U* s8 J2 @' I topicStr = SysAllocString((WCHAR *) L"system");( e0 G _! t3 r% Q6 k
VariantInit(&pokeVariant[2]); ; v6 B3 O) ]. {. L pokeVariant[2].vt = VT_BSTR;: y" x" G" m5 g1 }$ Y
pokeVariant[2].bstrVal = topicStr; 7 R9 x. P8 @) b5 r% Q# r: l$ f4 G
// Set the DISPPARAMS structure that holds the variant.' v: m9 ^) `% `( B% D3 V+ Q
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dp.rgvarg = pokeVariant;! {5 r4 S3 V0 X6 \3 \+ t9 s- n( m
dp.cArgs = 3;, O8 S- Y8 T; }7 h
dp.rgdispidNamedArgs = NULL; 9 Q8 K5 h9 }( w8 v dp.cNamedArgs = 0;# E/ t8 h$ I4 v
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// Call IDispatch::Invoke(), m- Q$ q- b* O& I2 e
) j! D2 X8 i" y" ?; q hr = m_pDisp->Invoke( , W# G) _+ M0 } z9 E- q+ f pokeID, , F C& f' k. v( P IID_NULL, ! D* N$ f, }0 w Q+ a8 ? LOCALE_SYSTEM_DEFAULT, ! x" n l2 P& V. S+ `) P4 J8 y DISPATCH_METHOD,4 K' [1 E; r$ J/ {7 h
&dp, . L# ^1 c; n2 i: O. C3 ~ NULL, * R8 Y/ O5 P& {$ M &ei, 3 i( [5 _+ M3 b0 Y &uiErr);1 U* f y) D2 r
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SysFreeString(topicStr);% n4 _9 m! r9 l/ R( U$ C# i
SysFreeString(itemStr); / B" t( t0 N% g' B; b Z0 _0 l- Y SysFreeString(valueStr); $ M1 m6 g3 q: s2 K. H+ X7 R7 O7 y. ^, L/ I9 g4 d
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??? i4 G3 q9 W, e, R; Z, ~& C
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????3 ~5 S6 t7 \. Y
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2.这是request的程序 5 V {) X, N J' \, N// Request a value from Extend& `/ z8 H0 r! i$ C5 z
//7 J6 r# Z4 P9 _4 B% ^; h+ A6 y7 _# [
// Initialize the variant that will hold the BSTR. Set the variant's ; O' a4 M' V8 d' }% C% @! G// type flag to indicate the fact that this variant holds a BSTR. Place the; A& l* v/ B s. |2 H9 D) R
// BSTR into the variant structure. 3 L9 X1 [, L# E) s3 Q9 L b- a6 M8 B+ g
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : v: ]3 S+ L; `- h9 ^$ Q 6 u! p) P+ S& F- W9 ?. X1 }
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( p( J' d3 V: ~! B7 s VariantInit(&requestVariant[0]); ; s: x A% z( _" @( V7 g
requestVariant[0].vt = VT_BSTR; : T' ]; y7 ~6 n! ? G1 V requestVariant[0].bstrVal = itemStr; ) G* ~! R( Z, ?4 {! D1 A! C9 r% g* t; M' n2 i; s% K
topicStr = SysAllocString((WCHAR *) L"system"); - H& L9 z3 t M/ @ VariantInit(&requestVariant[1]); 3 r2 \9 F4 F6 W) V# J' _" }
requestVariant[1].vt = VT_BSTR;1 i( Z0 F$ ^* s V
requestVariant[1].bstrVal = topicStr; 5 A) W' i4 m+ a& U & y5 r/ `" W4 f, e9 d- i @// Set the DISPPARAMS structure that holds the variant.' N4 x K# \) U
( Y0 o o1 P& {. J5 t$ P dp2.rgvarg = requestVariant; 6 n; u9 C9 r" A% P8 m dp2.cArgs = 2;2 \1 D4 T- \& |2 ]) T, I# n
dp2.rgdispidNamedArgs = NULL;8 p* A9 n1 J4 s4 }- l8 m0 [4 ]
dp2.cNamedArgs = 0;2 y3 f6 q' p l; a- }1 f9 D
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var.vt = VT_EMPTY; 1 {; Q8 D& W; w4 z9 Y1 \% M4 Q% i& V5 ?$ d/ H
// Call IDispatch::Invoke() 2 I5 V% H2 Q- P2 ?5 r " u* A9 Y5 K6 j/ G+ G0 S4 n2 H hr = m_pDisp->Invoke( ' S: \/ e6 S( G0 G7 P* N requestID, 1 M/ q, e# j# [1 X8 x IID_NULL,* I4 P, @0 w* E
LOCALE_SYSTEM_DEFAULT,4 ^( `' a3 m2 u7 ^" H* I7 ?
DISPATCH_METHOD, , E, J5 Y3 e# Q5 Q0 H! | &dp2,# n3 d$ P& t- I7 @( H* ?5 e% f0 a
&var, ; p/ A$ t) f4 S3 M; [; v c$ s# ] &ei, 7 F& ~" u# T1 K& `, `8 p) ^ &uiErr); # X) z7 f1 _, D" a, ~- ~ 2 ]) }, P5 T J+ k SysFreeString(topicStr);: }" Q2 T' f0 i& H
SysFreeString(itemStr);# [0 k% q! K7 h, o! j4 E
请问该程序是获得extend里面的哪个值? c, u9 S: |9 i2 E9 r
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????