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:6 L7 R& \6 g3 n, x1 Z
Name = (WCHAR *) L"Poke";+ P2 @* A" v6 {- N
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hr = m_pDisp->GetIDsOfNames ( # r' T0 N2 Z! f. P" d! \& F IID_NULL, // reserved4 ]" p1 _6 r7 L. _
&Name, // Array of names to get IDs for 6 r5 ~' a7 Y" D% @0 K+ R* N% {% A 1, // # of names in the array( d$ I; j. W+ l
LOCALE_SYSTEM_DEFAULT, // System locale/ D6 B4 a# X: @/ [: u! Y" g% @
&pokeID); // Array of IDs to fill on output+ {7 L! |2 }: Y- q8 z" e
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if (hr)6 u. a" J/ Z, A7 W% J, D. n8 c3 k
{/ \$ x2 G1 ?) \4 X6 e
MessageBox ("Get Poke Unsuccessful"); l0 p0 |8 M2 Y, y* ]
return; ' w. r, r$ @2 d6 Q, a3 j0 r4 V G } : x$ v+ F# A* {8 O; O, W$ r1 d& t; O" R/ i ^8 `- m! k
/**************************传递数据给extend**************************************/ , M! F" u9 T2 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 Y% \5 }4 P+ w+ B% @ ) }+ o ~! [% r valueStr = SysAllocString((WCHAR *) L"1232"); 4 e7 }3 \( e. l9 M VariantInit(&pokeVariant[0]); ; q" `: ?8 G. x" X
pokeVariant[0].vt = VT_BSTR;. `( C8 Q1 M* U; p8 k$ m
pokeVariant[0].bstrVal = valueStr;8 i' A! D1 [( E+ V3 _- f/ X& W$ q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 z8 l; T. J+ l( |2 `
VariantInit(&pokeVariant[1]); 6 r* W: V# [$ {; e4 |! e pokeVariant[1].vt = VT_BSTR; + E1 t0 a3 v9 l3 f0 D6 Z5 N pokeVariant[1].bstrVal = itemStr; ! y9 z/ g* x D& s! i& W9 _# m' A) b* W
topicStr = SysAllocString((WCHAR *) L"system");6 n" k: k! i9 K/ W5 r% Z" }! L
VariantInit(&pokeVariant[2]); - `8 \" j. I' [- B; V; e pokeVariant[2].vt = VT_BSTR; ! H9 ?, S6 b4 p7 h( i2 v pokeVariant[2].bstrVal = topicStr; 3 C. m8 c, i8 j: N: H+ R; n4 H& f8 n7 Q1 Q7 J
// Set the DISPPARAMS structure that holds the variant. + c3 o8 I H9 _& b; T- s . z' p- y5 M4 U1 i dp.rgvarg = pokeVariant;. E, K2 b2 X0 j. J
dp.cArgs = 3;6 v9 d2 @* j; E* Q4 }5 P
dp.rgdispidNamedArgs = NULL;" H2 ]' R |' c+ ]* z& d: a0 t& c
dp.cNamedArgs = 0; 0 o" @6 Z. X3 h% b0 J1 h( w% p# ^2 L
// Call IDispatch::Invoke() ; ?0 \' h+ _( m/ x5 W& |# A' L
hr = m_pDisp->Invoke( 9 r- k$ D: z! V8 B0 ]7 R pokeID, & w+ k. I. M6 R IID_NULL,& B" @' v! e; |+ A5 ?
LOCALE_SYSTEM_DEFAULT, u# c, w/ Z _
DISPATCH_METHOD, 5 E/ r5 F# f: H* s7 K0 z &dp,' r/ J, }( X9 }8 @% L& ?) k# O: `
NULL, - C- {8 r0 H4 M. m0 c, c7 h0 |, \ &ei, 5 ~0 P$ d J j5 Y' z, j( Y &uiErr);9 E, n: C! [, u2 t
! b0 ^7 l2 H1 o$ s+ P' R SysFreeString(topicStr);! w7 R# ~) w1 p$ A+ q
SysFreeString(itemStr);$ f7 Y* ~0 }1 L3 R0 N2 I p: `
SysFreeString(valueStr);' j, Z5 f3 a3 h6 `
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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??? . L6 d7 h2 K' x3 } G- a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???? 5 ~- } Q) v9 a' z! |5 f2 T 6 _9 e2 R2 m( w6 A2 g5 z " q/ Q; g7 q# V& H/ C5 J/ V2.这是request的程序( P+ F) a9 i1 d2 F
// Request a value from Extend& X' d) }8 E2 ?# n
// ; j# t, N" ?4 z2 v9 Y S: K6 f1 J// Initialize the variant that will hold the BSTR. Set the variant's7 O0 I7 J; ]5 n8 l2 O! X
// type flag to indicate the fact that this variant holds a BSTR. Place the# {: @' L/ f B; e7 z
// BSTR into the variant structure.; e, K+ e' B7 r
2 x4 a2 {3 ?6 v% P) W requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' y" I, x5 n4 L
) U- {6 j% A" m. x, g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : r" ?1 B3 n5 r VariantInit(&requestVariant[0]); / l# k- I/ }+ m8 A; N, t requestVariant[0].vt = VT_BSTR;, a" i' R* U6 W( q
requestVariant[0].bstrVal = itemStr;* |4 H9 U/ S) a* x* F
& x1 I' V8 |& V topicStr = SysAllocString((WCHAR *) L"system");" n' O9 j1 F. C7 F5 q9 P! O
VariantInit(&requestVariant[1]); + M" f( }- J7 U5 u* W requestVariant[1].vt = VT_BSTR;* W" D, K) _. u
requestVariant[1].bstrVal = topicStr; ; g% a/ g/ x" G) c 7 b" R9 k l" A5 _' r+ ^5 I// Set the DISPPARAMS structure that holds the variant. % N9 q( y! `& n7 Q. |9 c- }% y/ @5 ~, k" A3 i4 J! N2 r) D
dp2.rgvarg = requestVariant; |- k0 n2 }: L; S& a1 N
dp2.cArgs = 2;3 V+ [0 m' W" l% z Y- P0 @) L
dp2.rgdispidNamedArgs = NULL; ' ~" Q4 @# v& n: k; T3 [& F8 t dp2.cNamedArgs = 0; 2 f: P, P/ E$ s+ ?) K4 \' N' ?5 j1 v% {. B
var.vt = VT_EMPTY; , q/ x/ ]" v& Y: _8 k# C* r( a! f" _( p0 f, R
// Call IDispatch::Invoke()% a) s" s( v' ]3 k
6 c1 Y8 m* q0 o8 ^9 r, T/ E hr = m_pDisp->Invoke(0 k1 {, i" Y1 L; {5 j% b' A7 n" @
requestID,4 a& ]! C) K9 U! m, O6 m) ^
IID_NULL,* }/ i" W; F2 Y" K* Q: h+ w3 X8 c
LOCALE_SYSTEM_DEFAULT,, v' B9 X8 w3 W, E6 w
DISPATCH_METHOD,# g' p' {9 f v
&dp2,0 g: X* i% i, h. N/ k
&var,' U. \% X/ j; U& L* g. d8 Q
&ei,* f& g7 `- M3 J( R
&uiErr);! P- e' g# l: }- Z) M! G; k