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:' Z7 y6 M& s$ G. k/ q& g
Name = (WCHAR *) L"Poke";& M* K4 X0 Q, D% X- z3 H
( c% `0 s- G7 B" P% \) R hr = m_pDisp->GetIDsOfNames ( 3 ?7 t R/ Y8 O; | IID_NULL, // reserved: p4 j0 a& ~9 \ E6 D( P! T% y
&Name, // Array of names to get IDs for ' b d) E u6 f6 g9 E 1, // # of names in the array ! i' Q i$ L! F1 |% o2 W0 s) q ^ LOCALE_SYSTEM_DEFAULT, // System locale. N: j$ o# ~& z- T7 g7 Y( ^. }, q
&pokeID); // Array of IDs to fill on output: ]1 a% i, _2 K* }
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if (hr)5 u8 @. ]' ?6 v# z Z) v: f1 \" `
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MessageBox ("Get Poke Unsuccessful"); / W$ c, q* T, Y- l5 Z8 E* t return; 5 b8 ~& }* I) f }6 B9 N) n8 ?' @% J
' ?8 {) j1 d' Q$ C) {7 Q: \" m/**************************传递数据给extend**************************************/9 W, u: Q _+ d/ b/ k) `2 c
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- Y1 J, l' c* R3 C
5 i- k* }7 r! Q' ~0 {; R valueStr = SysAllocString((WCHAR *) L"1232"); . U' P$ L' V& {. A VariantInit(&pokeVariant[0]); & l: P9 W3 g/ ~# A5 s$ T3 @0 g
pokeVariant[0].vt = VT_BSTR;( I! r: ^& Y$ n( |! s
pokeVariant[0].bstrVal = valueStr;" _* t, B5 F0 ] t8 b4 k; ^: I5 `
" i1 P) b1 [: T4 u# H2 @9 ]; Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 \5 t$ z0 H0 ^9 m VariantInit(&pokeVariant[1]); % A0 w+ n* q7 D
pokeVariant[1].vt = VT_BSTR; ! p$ m/ U" n$ _# }" L pokeVariant[1].bstrVal = itemStr;' Y7 {: ^$ q) P& i# q. ]
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topicStr = SysAllocString((WCHAR *) L"system");# ?8 K) S7 m7 M
VariantInit(&pokeVariant[2]); 4 v9 p- T" v; g( u. Y5 J
pokeVariant[2].vt = VT_BSTR; 5 r, i. `6 c; c. } pokeVariant[2].bstrVal = topicStr; 5 e) A6 G7 b+ H+ d. r8 k " ~2 C( u8 |( k. m/ g: ^// Set the DISPPARAMS structure that holds the variant.2 l+ r5 @' R2 \. D
1 i. q$ h ^1 s& E dp.rgvarg = pokeVariant;- i& y1 X: y" M
dp.cArgs = 3; 3 A/ Z+ Q% w5 ]6 Z# R! y6 I9 J) E dp.rgdispidNamedArgs = NULL; ; C5 C2 b: G" v% V" P* ^+ s0 l6 ^ dp.cNamedArgs = 0;' h9 s6 G, a9 }! i
5 v% Y h" ]( c4 P, B// Call IDispatch::Invoke()5 ?# \; H% a# ]- a
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hr = m_pDisp->Invoke( 8 l/ h" L. m I/ U pokeID,4 k9 ?& X: V4 G# ^' B3 H- L
IID_NULL,. a# o, F% z8 D m
LOCALE_SYSTEM_DEFAULT, 3 y! M( _9 Q* n DISPATCH_METHOD, % d9 N$ n( l/ l' ^( [" o+ F &dp, _3 H- O/ Q! z7 u& t0 p; B/ o. J
NULL, 1 `5 M' n \! B: j &ei, : X+ S' R5 s, q &uiErr);( x, f# [8 q1 m. ~! d8 K* m
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SysFreeString(topicStr);* D5 t9 G* o Q& o9 c. P( f
SysFreeString(itemStr); ! W4 p% I G. g, h+ }7 j r3 w SysFreeString(valueStr);' j$ }$ u0 c- J3 H2 n' a9 n( X
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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??? 4 g0 r* R0 T% 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???? % w3 R8 m7 Z5 }9 I4 e) {2 {0 n! Z & U# _: ]. \0 t8 ~4 A" i ) X: a: x* ~3 X2.这是request的程序 ) u7 R: _; w9 Y$ W' `5 N4 M1 A// Request a value from Extend, r* m# T# t x7 S8 T
//8 M# n# p$ a7 d: ?1 h7 H
// Initialize the variant that will hold the BSTR. Set the variant's ; J6 H2 ~" D( W* I* n ` r3 y// type flag to indicate the fact that this variant holds a BSTR. Place the 9 n$ Z( O3 _0 H9 I// BSTR into the variant structure.( m: u& ^( x$ x% Q1 b# d) \
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) T7 O: V4 j/ D7 d
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . J! T3 H! s9 b! e, U VariantInit(&requestVariant[0]); $ G* g* B) C, Q+ h/ p: v" D/ I
requestVariant[0].vt = VT_BSTR; $ G" C: R7 u' @ J: @ requestVariant[0].bstrVal = itemStr;' j; z. H- T* L
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topicStr = SysAllocString((WCHAR *) L"system"); 0 e! | C" t1 O$ y" z6 c' T c VariantInit(&requestVariant[1]); & d% k# H6 f, t) t
requestVariant[1].vt = VT_BSTR; 6 k8 N$ J" E# l* |: {( p4 e requestVariant[1].bstrVal = topicStr; B% z# q$ i) y 6 m- e) ]* i8 T" L' }1 _2 h u// Set the DISPPARAMS structure that holds the variant. & o( y7 z/ p$ D K" s 7 [" U$ F. }" \0 a# Q" n dp2.rgvarg = requestVariant;; v: ]$ Q( K7 ?
dp2.cArgs = 2;. Z* G" u: H, i5 n2 a6 m
dp2.rgdispidNamedArgs = NULL; . {9 j. H* F4 L6 F3 o& R" w4 u* ~ dp2.cNamedArgs = 0; ! F2 `, N4 V7 i6 D6 j% K4 }2 U) o) c- G: }+ `! V5 n W5 \" m
var.vt = VT_EMPTY;- y1 m ?) z6 Q+ ?7 |& J2 ~
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// Call IDispatch::Invoke()3 G2 B' \2 K3 p2 P; [# Q# C
, I. i$ v6 M9 v. J hr = m_pDisp->Invoke(7 h- ?* Z" p7 n# c
requestID, I& S. j6 P# k* s IID_NULL, : I+ B, j, Y; k6 U! P0 ]& f LOCALE_SYSTEM_DEFAULT,, M L& T9 a) p' X
DISPATCH_METHOD,7 ]" W1 M) Q6 V/ h
&dp2,) \* G( @% ^- n
&var, 9 h7 a4 @6 e. h& k1 f2 _" O. {* \ &ei,+ W- `: u7 a* g! o& P$ L: N) @
&uiErr); ; a0 r+ ]' L6 G# g$ U8 A1 t; d+ F, z, r
SysFreeString(topicStr);! e r7 U) ~$ g- |+ g. }
SysFreeString(itemStr); % o& u8 R+ y7 b请问该程序是获得extend里面的哪个值?2 R2 {7 ^+ y3 Z6 M/ N/ d: d
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????