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:: d! N5 B z P" q! c
Name = (WCHAR *) L"Poke";6 A- t% M9 _; w0 O, t4 x& m
8 c1 f) \( {* {" c# p hr = m_pDisp->GetIDsOfNames (1 n6 [' I7 ^& K' h
IID_NULL, // reserved 0 _+ I% y8 V2 O! G ] &Name, // Array of names to get IDs for * q. ?* j$ I7 D# Z% U* `+ i 1, // # of names in the array8 y, U) q: K9 T$ n& A" g1 I
LOCALE_SYSTEM_DEFAULT, // System locale + c% U1 C" ]- {2 S3 u9 { &pokeID); // Array of IDs to fill on output% Q5 q9 p/ C9 x w7 b& Q
% V- H1 ~& T j- o% o if (hr): m: ^. t( @, j
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MessageBox ("Get Poke Unsuccessful"); 2 R2 Y/ w( I6 @! M: a1 } return; : X0 Z# ]) a" Y: L }' z( }% ^, t/ V/ X: }2 n9 h
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/**************************传递数据给extend**************************************/1 P+ b/ m2 K1 ]5 K
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 f( O. @& s4 i5 N3 c1 M6 F
* }0 d* g% i; _( ^" z+ ~ valueStr = SysAllocString((WCHAR *) L"1232");/ T5 q0 |: }/ j; \; e! e0 ]
VariantInit(&pokeVariant[0]); 0 B, o8 Q0 _6 R( N1 t pokeVariant[0].vt = VT_BSTR; 9 m6 w; U4 |7 K% y* [6 l$ F( o& N pokeVariant[0].bstrVal = valueStr; $ q" y' f$ k. @& n& }4 D7 h + S7 J1 G4 K! E4 a: |+ O* M, ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * Y( h4 S4 _% v- g VariantInit(&pokeVariant[1]); 9 \* J! ~% k0 K& g% I3 X! M! y' w pokeVariant[1].vt = VT_BSTR; ; q" r9 }+ ]' N) F0 d5 x7 P) Z C pokeVariant[1].bstrVal = itemStr; - Q7 ^. i, A% B( n, m7 h! I' p2 \: ]5 C9 u/ ^
topicStr = SysAllocString((WCHAR *) L"system");7 J6 p5 E+ b) \" D8 N
VariantInit(&pokeVariant[2]); & c* ^4 e4 |, U6 H( P3 ~7 X pokeVariant[2].vt = VT_BSTR; 8 ^0 I, e' ]3 H3 ] pokeVariant[2].bstrVal = topicStr; ; _- P5 |9 ~! ^! f0 c + d# y" \& X8 Y+ F; p// Set the DISPPARAMS structure that holds the variant. 3 U8 l4 `9 N4 o# d7 Q9 w8 n7 _& g( i- A! g, \6 j7 @
dp.rgvarg = pokeVariant; 1 j" Z8 L) x5 A: q dp.cArgs = 3; & ?& b9 K- |6 q# g, v% X" v dp.rgdispidNamedArgs = NULL; " J- S. R& l2 X! H dp.cNamedArgs = 0; ; U0 q. m+ X( |. m* H# U7 ^ ' x# @# |7 g" _& [ R) {1 L. B1 c// Call IDispatch::Invoke() % j9 a* N$ e W' w5 d1 d. P2 Z" c) r* j }6 w
hr = m_pDisp->Invoke( 7 l) X2 h' D) o2 g3 F pokeID, 2 _0 J8 q/ Y/ K5 [5 }3 `4 o% h IID_NULL, & ^% O% j0 N5 N2 ?4 b LOCALE_SYSTEM_DEFAULT, , [* ?' C( o- [ c) y4 R DISPATCH_METHOD,4 x6 B4 s$ h+ H& Y0 o P
&dp, 3 M$ k$ x& q: d" ` g NULL, * Y; J: @: {' X# w% Q &ei," z- C* E8 n0 M. e6 c! e
&uiErr); ! u$ ]4 _/ ~, N2 Q1 h. z. e + }# a9 q; ?* t5 W( _ SysFreeString(topicStr);, n+ @2 { m1 t, ?# u3 I a
SysFreeString(itemStr); 2 j- ~) T& N6 p* x$ {5 e Z: L0 w C6 Y SysFreeString(valueStr);0 R4 A# Q1 C( j% v$ P, c
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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??? 7 t( M' |* u( G) p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????" l- Y# t1 z3 }3 g
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2.这是request的程序 + E1 j+ b! v- j6 e// Request a value from Extend. H) K2 m( y, L/ s# @# n t
//6 G- y% ]; s( E8 I
// Initialize the variant that will hold the BSTR. Set the variant's% F; u7 ?$ ^, |- \, g& i; U
// type flag to indicate the fact that this variant holds a BSTR. Place the4 S) z, Y/ i |, {% E' H8 D0 w- \
// BSTR into the variant structure. B' ?: L2 G0 ~! Z. u' {+ x; z: M \7 b; v5 }
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / }9 A$ e7 P l6 C; N ( h5 D! ~$ L8 p" U) z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! H, q; { ]; A: u$ a& F, A VariantInit(&requestVariant[0]); ! d& n' u- @# r y9 S
requestVariant[0].vt = VT_BSTR; : S" `0 v `7 f: E" A requestVariant[0].bstrVal = itemStr; " s% f" [2 R/ N 1 Z! U h2 N3 g9 c$ K: H% } topicStr = SysAllocString((WCHAR *) L"system");2 @9 v1 q) \) I" w; b$ W
VariantInit(&requestVariant[1]); ' f: j$ X7 U3 _ V
requestVariant[1].vt = VT_BSTR; - B% e% q5 j; k$ I0 G! Y requestVariant[1].bstrVal = topicStr;: j% [; E2 d J, g/ }0 j
9 w/ e+ j7 F" G/ r: k# H// Set the DISPPARAMS structure that holds the variant.9 Q6 O# ~$ G5 H
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dp2.rgvarg = requestVariant; 7 ?, @2 W3 k. V5 x! ~; t3 T% K dp2.cArgs = 2;* d8 ]/ S3 d6 w3 t# @
dp2.rgdispidNamedArgs = NULL;7 m: Z9 A# @, W# B8 f
dp2.cNamedArgs = 0;% M- k, U5 m8 d
7 V* v, b) J9 e. U5 k var.vt = VT_EMPTY;. O" G, e: Z1 v1 b+ x0 `9 ^, N& _
, j; |# A5 Y1 Y: T" i( ]" I// Call IDispatch::Invoke(), U1 P \& X! w- K+ u& F
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hr = m_pDisp->Invoke(/ _# O) S: c' @; J; P
requestID,! @' x9 Q3 k5 B: [
IID_NULL, # x2 j U, v. ]3 j. w7 l8 k LOCALE_SYSTEM_DEFAULT,' g6 N! ^7 K0 @, ^5 v5 S: C
DISPATCH_METHOD,2 @2 ?: S8 b4 L" K
&dp2,' }" _* `8 ]1 R
&var, s7 R q1 R. I; F &ei, 1 `* r+ A& {5 S+ H" z( W# O5 p &uiErr);. P+ K$ S2 ]9 p3 R2 l: B0 a