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:! E/ u" H e" M, s, F) u
Name = (WCHAR *) L"Poke";: F$ M, l$ s l* Y2 c G
* C' I3 u3 R# h& T$ x) j2 ^1 x8 Y hr = m_pDisp->GetIDsOfNames ( ! S- V. `- Z s% z, }/ t IID_NULL, // reserved " x9 {8 M/ h/ r& m( c& w) R2 z' v* | &Name, // Array of names to get IDs for 8 Q+ ?3 U; F% x" j5 Z 1, // # of names in the array 8 d J/ }7 R/ S- m/ N LOCALE_SYSTEM_DEFAULT, // System locale $ v- V" \0 Z0 ?* e9 H( P &pokeID); // Array of IDs to fill on output : m+ o2 I0 H, g ( ]: l/ q9 V2 K0 u8 @) I. V
if (hr) 2 ~. `& v. F( N: M {# d7 I/ {% m' V0 N f/ l) T9 R
MessageBox ("Get Poke Unsuccessful"); & N* P& M2 H e7 f) \- v return;/ f! `% H, e1 `1 c% R' a
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, `0 I# t0 c2 B) }5 ]/**************************传递数据给extend**************************************/ 6 G. y; M: a& Q. J$ ?- i0 M: O pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ M" Z9 ?, c& r% h
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valueStr = SysAllocString((WCHAR *) L"1232");! u( {8 P1 d" M8 }3 Q- N
VariantInit(&pokeVariant[0]); ! H- g3 V2 m) ?0 @6 I3 r
pokeVariant[0].vt = VT_BSTR; $ l4 `& u7 Y: L! Y7 G! p pokeVariant[0].bstrVal = valueStr; : `7 _; o' I& |1 ?0 @+ q9 q( G: d! e/ i. B" v% T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); z9 H& a/ _' a& U- c. M) B9 P2 n2 B
VariantInit(&pokeVariant[1]); " q( t/ o+ X: R8 q
pokeVariant[1].vt = VT_BSTR; 4 y0 |$ T$ @ {# E& T pokeVariant[1].bstrVal = itemStr; 3 z N4 [" `: A7 ^ + P5 G: S0 n( A( b5 B4 Q% t topicStr = SysAllocString((WCHAR *) L"system");3 N+ T! e' ^+ U
VariantInit(&pokeVariant[2]); ! V, H( n, o* k pokeVariant[2].vt = VT_BSTR; , ~8 T5 `/ W+ f pokeVariant[2].bstrVal = topicStr;. \2 a- y k! B3 |. v0 \
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// Set the DISPPARAMS structure that holds the variant.3 M' V- ~0 k$ b& f, B
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dp.rgvarg = pokeVariant; & D" P$ @7 w' L& m4 O dp.cArgs = 3; * z" N; [1 Y5 R dp.rgdispidNamedArgs = NULL;$ ]; O) ~6 |6 G7 V
dp.cNamedArgs = 0; X+ [8 m& w( r( N7 z
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// Call IDispatch::Invoke()! b+ H# m1 S7 T2 Q
8 A. e2 l+ B+ V3 b8 |' O hr = m_pDisp->Invoke(+ ]+ x( T# g3 w' @: h5 b1 i
pokeID, 4 j% x9 g3 ?3 T IID_NULL, o5 L4 f8 ~; F d8 r
LOCALE_SYSTEM_DEFAULT,% _ s# m% s( g
DISPATCH_METHOD, $ [! I4 B9 u8 }$ E' o' G &dp,, F) z! O- O. s: {! S. U
NULL, # d: J, k) p9 P9 O &ei," Y9 U3 c2 U* s0 C
&uiErr);% `% W s2 D P% @
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SysFreeString(topicStr); ! W) s/ C" C- h2 q# f" b+ G1 r& e SysFreeString(itemStr); ( \/ C4 ]4 u/ Y$ v SysFreeString(valueStr); 8 i0 }" ]9 \2 c- O3 o' U ! V6 ?/ v$ ]/ v& ` X. m* r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???2 U3 P3 [, O5 }2 w) S/ s9 T. `
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???? 0 X4 [/ l5 d9 v }- ~8 \" S 4 D K2 \3 J' e5 P& Q0 @/ R0 f& l
2.这是request的程序! @0 v. m# a; {; u2 [; C4 @. K6 h2 p B
// Request a value from Extend- Q/ q3 M- T: ~8 I# x: T+ ?
//; j# t# t4 J$ ]( k
// Initialize the variant that will hold the BSTR. Set the variant's ; F9 P; T( F) y/ m" {// type flag to indicate the fact that this variant holds a BSTR. Place the) Z# v7 }' R1 q- U. S
// BSTR into the variant structure. ! r6 W! I) s4 u: {( J$ h+ V0 t$ ^ 7 \6 z; M+ t( a2 ?. L requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ R; @: u: c. B7 u) Q0 w9 A2 e
7 d' N# a; v% a5 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! n; r6 E9 c: P1 r2 {* R& |
VariantInit(&requestVariant[0]); 1 h) g7 @4 e }4 Q' U2 V requestVariant[0].vt = VT_BSTR; 2 i+ O1 q% s0 j% g& H/ t G requestVariant[0].bstrVal = itemStr; 1 k6 Z6 c% T, [$ v3 J7 }( P$ ?! P' p- p$ n9 x, z4 X6 Y5 ?
topicStr = SysAllocString((WCHAR *) L"system"); & n }4 I/ M- Z VariantInit(&requestVariant[1]); % g4 E$ n& O& l1 P
requestVariant[1].vt = VT_BSTR;+ ^- {& H& v2 m* D
requestVariant[1].bstrVal = topicStr;, z3 n0 n5 U# C- k5 v. ?; T u
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// Set the DISPPARAMS structure that holds the variant. 1 l" p$ S6 Z2 x! W7 g. h7 D0 @: `4 v7 C0 Q- v) B
dp2.rgvarg = requestVariant; # m! \5 s9 l# S dp2.cArgs = 2; 0 r6 W2 ~4 t# s T2 H0 d dp2.rgdispidNamedArgs = NULL; ( @5 r6 j; B8 ?7 D* ~7 }3 \2 { dp2.cNamedArgs = 0;& ]6 D7 C7 B9 C- I3 W* ~; s0 H
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var.vt = VT_EMPTY;8 _" C% s7 L/ E' R5 N2 J# e
6 D* \, ^2 z$ ?6 B- t* s3 ~7 f// Call IDispatch::Invoke()! V' m, m9 x) @) W
- f; i" k! q# \ hr = m_pDisp->Invoke( $ L' J/ C% ~9 C requestID,1 i% I: G/ T8 ^& _9 s. |8 k8 f
IID_NULL,& \9 R, h$ z0 p6 W x
LOCALE_SYSTEM_DEFAULT,0 v e% F* g4 f- h# G7 T2 _8 \
DISPATCH_METHOD,* a( F* o- o) h F* [; p% z# c9 V& o
&dp2,, |9 T4 h# ]6 j
&var,0 ^3 Y7 m0 U2 g8 L6 ~
&ei, 0 z' e- c: M- {1 Z &uiErr); ( _$ K; t. u/ Z9 u , R1 ?) y+ J4 C& J* k. {' C b: P SysFreeString(topicStr); 6 i' i' v/ K8 u' B' u: P! I SysFreeString(itemStr); b9 F# S- i- B7 n请问该程序是获得extend里面的哪个值? ; G$ j7 I8 F6 i8 a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????