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:! L) T# S5 l7 t4 }9 Z
Name = (WCHAR *) L"Poke"; A f7 L3 q/ r1 J; M1 u 5 j" [7 V9 A7 X( V: U hr = m_pDisp->GetIDsOfNames ( + ^; c# w$ T2 j' ^: ` IID_NULL, // reserved2 D; }' `/ L) k
&Name, // Array of names to get IDs for 6 T! N' z" S. d9 r( x, t, \4 k 1, // # of names in the array/ Z" \/ D/ \# V7 l7 ?8 W7 P
LOCALE_SYSTEM_DEFAULT, // System locale# P b; I1 M4 @* c1 c! V
&pokeID); // Array of IDs to fill on output% P0 ] k) s6 X4 p# Y
7 x4 V6 j `( G7 Q if (hr)+ A% I( g" x% S+ N9 R0 C
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MessageBox ("Get Poke Unsuccessful");- i3 l9 E2 p4 r: G2 \
return;- P( B, S( D& U4 ?0 E8 B
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/**************************传递数据给extend**************************************/- m& _% Y3 F, f4 O/ D, r/ f, n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); % |; P+ X% I# W2 L/ H0 I9 G# \ % B6 K( k+ N6 H valueStr = SysAllocString((WCHAR *) L"1232"); 0 L4 u n. `+ N/ { VariantInit(&pokeVariant[0]); 5 r* ~) z" {9 q1 y
pokeVariant[0].vt = VT_BSTR;# j5 C6 U# C7 P' @9 n
pokeVariant[0].bstrVal = valueStr;1 G7 |; n. e" V% {* g
7 O4 ~+ c) O( E- X* H, b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ |& M; K) u- R& L4 K
VariantInit(&pokeVariant[1]); : ] f+ h6 j. K. [2 b pokeVariant[1].vt = VT_BSTR; - r# c. h) W# [+ I' |2 k pokeVariant[1].bstrVal = itemStr; ! [, O& _3 b0 F' h1 y / n5 D8 l) h/ b; m0 u topicStr = SysAllocString((WCHAR *) L"system"); * m# @" x1 M6 _ VariantInit(&pokeVariant[2]); * j" k' d9 p: v( y1 E9 s2 Y pokeVariant[2].vt = VT_BSTR; . t3 o: f( {) }+ w4 Y: Q9 I pokeVariant[2].bstrVal = topicStr;/ p" q* G3 d5 i- ]% a+ ~
, t& E' S% L! d- O// Set the DISPPARAMS structure that holds the variant.1 w4 S" m( v, g+ f* i0 |
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dp.rgvarg = pokeVariant; + \9 H, V* _+ Z5 R [& P dp.cArgs = 3;7 y2 d+ K3 ~. T# d
dp.rgdispidNamedArgs = NULL; * ~5 A: x/ `! h; g6 D: X* Z1 l dp.cNamedArgs = 0; * I* j" i) V( L: c( ~ 0 k6 L" f& O7 _% ^// Call IDispatch::Invoke()- ~" n- ~4 Y1 n! T- a/ d# z, O5 C
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hr = m_pDisp->Invoke(# p4 D) y+ |; Q& y
pokeID, 1 s3 I8 R, m( @; q9 m& n IID_NULL,5 M9 J" o1 j1 x f2 l+ S8 Z
LOCALE_SYSTEM_DEFAULT, * ]9 x6 G8 |; a4 m2 E g3 W DISPATCH_METHOD, * }/ e7 H& }( I" A8 m &dp,6 o7 \/ o$ p$ L+ f" Q5 J9 A& X7 f- y: o
NULL,' G# b9 G5 R; j
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&uiErr);! L4 d0 _ D7 G: {' B9 L1 e
- c n+ p& ]6 i: _ SysFreeString(topicStr); ; |+ O8 W: h% x% h$ X T SysFreeString(itemStr);8 \8 M c: O2 Q1 b, |
SysFreeString(valueStr);: I1 ?4 M) ?$ }) I* G# E5 m
" t0 ~7 z& i: I: ]: I; B' i6 i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???& E. {* c( l; |5 y4 A3 C% h
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????) v6 `$ c- ~* i8 M
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2.这是request的程序 4 ^# r/ P2 i# i. Q// Request a value from Extend% Z6 I( f( s L/ A+ J# ` l" G4 p Y
// 1 W, y/ D1 x$ h! w% r2 E t// Initialize the variant that will hold the BSTR. Set the variant's ! D. J. T8 G2 w: W. ~8 ]# ?// type flag to indicate the fact that this variant holds a BSTR. Place the . G6 z8 a7 {( y// BSTR into the variant structure. + F# V4 s) i3 R! K m " e* n. T2 q: N) m8 ? requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 N6 D8 j& C9 Y, {
% f- j7 w v' ?3 ~5 x2 |# \* w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , f' A- C, p" U) ] VariantInit(&requestVariant[0]); 6 @0 q" a" r4 p3 d1 z
requestVariant[0].vt = VT_BSTR;4 g) m0 j) N1 {1 b R. {* c0 W
requestVariant[0].bstrVal = itemStr; ! w' @: X! y) h9 W8 X2 q1 o( }4 a: \0 A- y6 N( c9 @ U* N
topicStr = SysAllocString((WCHAR *) L"system"); 2 c* `8 R( e7 S; q) b( _" {( @ VariantInit(&requestVariant[1]); 9 L( Y3 P3 Q7 T$ ~! C" ~, X% d1 j
requestVariant[1].vt = VT_BSTR;( _9 q+ X8 |) Q2 I6 K* ?1 s
requestVariant[1].bstrVal = topicStr; 3 d( N2 k" m) @, q( { $ E+ r6 k5 e ^* U" i2 F+ l6 a// Set the DISPPARAMS structure that holds the variant.6 ~: j/ i/ A) J7 I
, R; |' `2 i1 i. f# c3 ^ dp2.rgvarg = requestVariant;) {5 n' s7 S+ R# l9 J D# J3 b/ n7 ~+ Y
dp2.cArgs = 2; ; o% M5 A) Y: V' H5 v! X% E4 ] dp2.rgdispidNamedArgs = NULL; 8 O! y& V9 j' d& g. p8 o# T dp2.cNamedArgs = 0;3 h- y+ ~: h5 r, s; n" t, n: O
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var.vt = VT_EMPTY; ' u, J0 d2 a! L" w4 F% O) y9 V- Y, R X: ^2 q- T
// Call IDispatch::Invoke() 3 q; I0 K* t: E; [. `+ R$ f& B( G% J . l0 F) B& J1 y. p: K0 n* M hr = m_pDisp->Invoke(( f& c. v6 |4 p* R
requestID, $ P6 \; o) _: X- L; z2 A IID_NULL, ! L4 v# u" V: s LOCALE_SYSTEM_DEFAULT, + A( S# j) L/ w+ G DISPATCH_METHOD, , C/ z% q, T1 c. s* ~0 a( P &dp2,/ [0 L0 U( D0 Y
&var,! L7 `! ~! T1 V, t; }
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&uiErr);8 k; v1 M* k0 j& r& C+ o% j, [* y( I
( R+ l- I; x U5 l0 M) T5 ` SysFreeString(topicStr);- ?# N) H8 M5 U3 J& C
SysFreeString(itemStr);( _9 Y4 _9 v9 a U- {
请问该程序是获得extend里面的哪个值?+ v2 n7 \( W* F$ E
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????