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:4 u1 N' R' m1 K& Y" A* H. U. i5 N
Name = (WCHAR *) L"Poke"; 1 }' f' Q a+ y( k0 X5 C6 N 6 A5 Q( }4 B2 l+ m5 c8 q4 V6 P
hr = m_pDisp->GetIDsOfNames (5 g- }8 |1 o; a c
IID_NULL, // reserved c3 ~4 i; O% o2 J+ n2 }. h
&Name, // Array of names to get IDs for + E" k* a0 M" M2 H$ q* i 1, // # of names in the array% w4 l, f, w, x) h
LOCALE_SYSTEM_DEFAULT, // System locale # ]2 J/ z% [ c- s4 h+ [ &pokeID); // Array of IDs to fill on output, K# B8 @, l) r6 p" g- ?% ]. a
' X0 e" i& w4 ] if (hr) * ?9 O! z7 b) @. E( t' |7 r {! z2 h7 B7 D$ D) V9 h4 ?
MessageBox ("Get Poke Unsuccessful");! A# [7 s' v9 X5 e+ [6 {, g
return;( c2 Y9 u' g0 i% @
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/**************************传递数据给extend**************************************/; p8 l' D7 M8 a& ^
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " M! ], i Q7 x! E3 l 7 z- \$ g4 G/ a# Q- F1 I
valueStr = SysAllocString((WCHAR *) L"1232"); " O5 B- d5 F( D6 D9 J/ E: ?2 U, J VariantInit(&pokeVariant[0]); ( m+ ?' R* U2 n2 @& j pokeVariant[0].vt = VT_BSTR; . i3 l! e# j$ {1 ]; I5 o' V) R' ? pokeVariant[0].bstrVal = valueStr;, C f$ [3 o* c- ^ D
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 m/ F1 _+ N4 X$ ^/ Y* E% C# m; L VariantInit(&pokeVariant[1]); , {6 h9 _- \* Z3 o' Y# ]8 I
pokeVariant[1].vt = VT_BSTR;( z0 y2 P- U" M$ M) Z7 g
pokeVariant[1].bstrVal = itemStr;$ S0 b2 ^5 m) r: s1 j
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topicStr = SysAllocString((WCHAR *) L"system"); ; R) ^5 |3 ^1 U8 y, V VariantInit(&pokeVariant[2]); / X* D! W8 ]6 ~2 j/ V, \ pokeVariant[2].vt = VT_BSTR; 2 q- D4 f- _% `8 B5 y1 {* M pokeVariant[2].bstrVal = topicStr; 3 x# h) d1 ^+ r- ~ l ! h* u8 G- P: S" ^4 K7 H# T8 Q( P+ a// Set the DISPPARAMS structure that holds the variant.( \/ D& I) ^$ |" | i% v: B7 V
0 s( b3 G, ~/ r dp.rgvarg = pokeVariant; $ v6 }) e( k" K0 P dp.cArgs = 3;. Z0 e7 P8 L# p& {! d
dp.rgdispidNamedArgs = NULL;4 B8 O0 T7 a8 a a
dp.cNamedArgs = 0; , T7 v; F% X; q: ]: e ' Q J2 R. a% J; R9 H8 H y// Call IDispatch::Invoke() , C9 l0 f' r+ g- j. O* f ( s4 y! S9 {) x1 h6 | hr = m_pDisp->Invoke(; S) I$ v4 q# ?; d5 I0 r T6 L; N- @
pokeID,# J& {5 y1 s. |9 X
IID_NULL, L3 s7 V& K+ v0 C
LOCALE_SYSTEM_DEFAULT, 7 b7 t3 X. D6 I2 e3 F DISPATCH_METHOD,: [( ]) a: A* J' p, w% X! u6 @6 F# ]
&dp,: S4 q* y- W7 ^/ V# O
NULL,9 c6 O! A- d2 W# `
&ei, 6 S1 ]( }0 Y+ P( F+ x* ?. u1 q &uiErr); : g' n0 c* [$ U) j5 D 1 w$ p M8 W+ f& w' E. L8 c SysFreeString(topicStr);/ O! `+ g4 @0 ~4 d
SysFreeString(itemStr); 6 t# ?; w& n4 C! p( R SysFreeString(valueStr); . C8 D1 R3 J f; V 3 r0 E( Q5 o: L3 o" ]% N3 D/ O* T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???% g1 w: V6 U/ A* M+ 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???? ) P4 M% N$ [# }7 Q) p , ]5 T8 M+ I4 |& [' {. t2 r+ |1 `0 [ - j9 |9 P) U- @ d% W( e2.这是request的程序 & E( ^8 o1 j2 x, M# w: U: N' W// Request a value from Extend$ c1 G0 p& U3 I) m' Z
//7 N1 t [, b6 s* h
// Initialize the variant that will hold the BSTR. Set the variant's # u9 |9 `7 }* i; T( U! V$ U# ^& w// type flag to indicate the fact that this variant holds a BSTR. Place the" V% C1 v8 p, |0 S; g3 ~' z ]& x
// BSTR into the variant structure. * i6 M3 a; B. {1 D$ T0 N. G2 M 0 L; H, M, H3 k4 A; ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); % u6 N: Q. @2 L8 l+ G ' P: j, V( Y4 `5 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 b% s6 i1 U& F9 s# l& L VariantInit(&requestVariant[0]); ; X& @9 a% m' C" u" [ requestVariant[0].vt = VT_BSTR;2 ~7 f3 }2 J, \
requestVariant[0].bstrVal = itemStr; E7 f: L7 y8 s" Z6 t# ~
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topicStr = SysAllocString((WCHAR *) L"system"); ; W9 h; `- {( i& h3 [6 v VariantInit(&requestVariant[1]); 6 m" Y; Q1 q+ o x% ]# e
requestVariant[1].vt = VT_BSTR;( U3 H" H& r0 v- X8 F
requestVariant[1].bstrVal = topicStr;$ c1 D6 H; K @4 a# h
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// Set the DISPPARAMS structure that holds the variant. ! e+ U& I9 n' g2 f8 q ( k) a R& O) m' S/ g1 h dp2.rgvarg = requestVariant; 4 |6 P4 Y0 A1 r9 y* p# Z dp2.cArgs = 2;' b3 C& A* J$ M0 B$ J; f9 i
dp2.rgdispidNamedArgs = NULL; * V/ K$ ]7 _3 E$ z9 q4 a" x- s dp2.cNamedArgs = 0;+ g1 A1 l. M, ?; C% p4 }$ D/ m
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var.vt = VT_EMPTY; 4 m# v- |+ m B$ w& ~7 ~2 w2 W k L! Q* m+ ]. \; k. H
// Call IDispatch::Invoke() 9 s" i! L$ ^5 T% {- M) x ; ]8 W( K8 A! J4 V! p$ c hr = m_pDisp->Invoke(* ]* J# t' G1 l; S
requestID, 1 a! w4 Z3 ]2 g/ ~$ H7 R IID_NULL,) ?- v3 Q( ^4 t' x( h
LOCALE_SYSTEM_DEFAULT, 6 F+ k4 E0 Y' |8 J: ?% p# j DISPATCH_METHOD,1 Z! ^+ C* \" a! @) b4 }% N
&dp2,7 J( k! R f/ i, d
&var, , }, F) h+ m+ E$ ^2 l* X/ i &ei, . [( {5 o b) I &uiErr);4 L% R" T- g+ [" s& k" J
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SysFreeString(topicStr); & q! i. t2 L3 \5 } SysFreeString(itemStr);8 e! ?+ { O) z
请问该程序是获得extend里面的哪个值? 8 D2 \7 M' i$ l& E( u2 ~6 u' I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????