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: ! k/ s/ F% R$ l8 V2 ~Name = (WCHAR *) L"Poke"; - P4 t" G8 Z8 A0 V9 H& L# H 1 L. B! t7 i; `! \
hr = m_pDisp->GetIDsOfNames (6 V+ I+ R9 W& l" k6 F" K1 U
IID_NULL, // reserved4 ]2 q+ B9 g. @- j6 j7 J& H! A# Y; m
&Name, // Array of names to get IDs for2 { x# z! X5 m3 H2 |
1, // # of names in the array, ~3 U" \2 d& `- w. e8 _+ L
LOCALE_SYSTEM_DEFAULT, // System locale 3 E4 w+ x3 l3 {7 q+ }. ?. N% U. f &pokeID); // Array of IDs to fill on output 0 u* D$ c8 k0 z- S: O 8 [8 W$ x, H1 R; h
if (hr)% W0 t I9 R+ m. X
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MessageBox ("Get Poke Unsuccessful");7 {) |4 E8 Z6 x3 x+ V6 k4 E
return;& C6 W1 Z9 ~3 H- c2 _
} . M% ~7 q% X P+ t: o: N * q, c3 [5 q# n6 t+ ?1 g/**************************传递数据给extend**************************************/ 5 `8 A8 Y! u0 Y. Q; ?2 e* i0 {& ?3 o pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ G) q8 z% d5 m' `3 F$ K0 ~
3 ^: p" @ p/ q+ L/ Y valueStr = SysAllocString((WCHAR *) L"1232");% t* v2 e8 D9 Z; M6 i: J3 U
VariantInit(&pokeVariant[0]); ; C/ V- f5 Q* e5 c( N pokeVariant[0].vt = VT_BSTR; 5 Q" L# S' ?$ A3 C) a pokeVariant[0].bstrVal = valueStr; @* M1 z( z* z2 q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 X3 v* a4 x; c
VariantInit(&pokeVariant[1]); ! g/ g, E2 `; @8 `9 e
pokeVariant[1].vt = VT_BSTR;& a! ^: v7 W) ^, h* D% q
pokeVariant[1].bstrVal = itemStr; / p, T3 v. o# ?2 T. \7 m: X2 Y& y0 [) K& ]0 G
topicStr = SysAllocString((WCHAR *) L"system"); " K9 i9 q$ c2 Z' L) F9 T" M! H VariantInit(&pokeVariant[2]); 9 P$ w& p. J7 X& {( i, U. a$ H1 g
pokeVariant[2].vt = VT_BSTR; # E9 j' `! @" f. B0 e; Q4 H6 F pokeVariant[2].bstrVal = topicStr;7 ~) P. V& s3 D3 X' n+ I' Y$ H
7 x& \0 B/ L4 J( l// Set the DISPPARAMS structure that holds the variant. # ~1 y4 G, j3 }2 d; X7 D% S! Q2 ^# U" i1 u! e
dp.rgvarg = pokeVariant; ' \2 A5 u: D8 n dp.cArgs = 3; 2 v/ X, C4 r" h5 z/ g0 D dp.rgdispidNamedArgs = NULL;$ z. _, h- W) E
dp.cNamedArgs = 0; 7 A& k# t7 a! u! {7 }/ r- S$ f- n1 H! o& W9 v2 I( ^
// Call IDispatch::Invoke() & B) d, c3 V" K! m& m$ g ~2 S1 z* v5 M4 z# z2 d1 x hr = m_pDisp->Invoke(2 I& ?' m. t N* n/ R' w- U5 M9 m; L3 ]
pokeID, , n/ V0 n( L. w IID_NULL,& t: B! X9 O9 E/ X# V9 e
LOCALE_SYSTEM_DEFAULT," N& w, L! ~ E, n5 g1 P4 ~
DISPATCH_METHOD,0 D4 c$ t/ y# O# t
&dp, 0 F @- g8 u) e4 J NULL,5 |4 C7 k: m$ Y: I, y0 K
&ei,$ C1 [6 g4 _7 c; u$ [
&uiErr); 5 X1 P! `4 p4 C) n( \ 4 |' u3 |; }1 G SysFreeString(topicStr);# [/ T1 F: ?! ^6 S# I: e
SysFreeString(itemStr); 1 \. d; O% P9 W' t5 ?4 X- k- @% ^ SysFreeString(valueStr);, u1 z t$ \- B: I' |4 ^7 Z/ \& H6 E
9 r; I# k9 v+ Y# T 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??? : S7 t8 h4 x6 g7 _& ?% 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 @5 l1 q2 F2 u6 R* Z 2 _7 R- s/ w2 G: P + L c" `& x6 _: {3 F# {2.这是request的程序 + m' r7 z2 `( ^// Request a value from Extend( f# O6 `) T, J- a6 o- N7 ^ E
/// p8 J, a+ x/ t$ \0 ?1 Z4 D. d1 ]
// Initialize the variant that will hold the BSTR. Set the variant's ( t% T2 q8 W% b8 S$ i3 h// type flag to indicate the fact that this variant holds a BSTR. Place the u0 W3 [7 f0 y3 o. P" F// BSTR into the variant structure.2 X. [1 o O5 d) H4 P3 U
# Z- E* @: I( k( C6 q7 q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ r$ |3 b D+ m$ G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! N, E8 C! z; g ^: z. @; V: W8 D
VariantInit(&requestVariant[0]); / Q1 M6 [( L6 C) l7 h# ?# a
requestVariant[0].vt = VT_BSTR;- [. ]: X& Q4 A' N; d& p- ^5 M6 x9 q
requestVariant[0].bstrVal = itemStr;/ |! n8 g5 U; V& G4 {! r# s' n9 o( x
& k& }" h+ ~. a y
topicStr = SysAllocString((WCHAR *) L"system"); ( P- e/ }# v# _: j VariantInit(&requestVariant[1]); 4 D( x5 ?( q8 Q# J- k/ f& N requestVariant[1].vt = VT_BSTR;4 i' S: s0 ~5 @0 | f9 A
requestVariant[1].bstrVal = topicStr;/ W k. i+ U8 s- N9 N. h, b
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// Set the DISPPARAMS structure that holds the variant.8 z% Z- O* b; A" D
, z P; u" t" C# S9 |5 g, W% L dp2.rgvarg = requestVariant;5 }5 D4 x/ p Y/ g
dp2.cArgs = 2; 4 q3 n( u9 x! K- Y dp2.rgdispidNamedArgs = NULL; , B$ X7 E% \7 t3 a dp2.cNamedArgs = 0;5 i5 U9 o/ k2 m
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var.vt = VT_EMPTY;3 X) V# A& B9 B6 M3 J9 J3 ^; K7 Q+ A