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:: q% x# Q! o, q ]0 Z
Name = (WCHAR *) L"Poke";8 H' D8 S; f% u! F: A
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hr = m_pDisp->GetIDsOfNames ( * v+ t1 ^- z+ B X6 @+ L! s IID_NULL, // reserved9 s! X2 r% T9 }( S2 P$ e1 u
&Name, // Array of names to get IDs for- ?* Y# r! C m
1, // # of names in the array4 F2 \9 y, U0 A1 L
LOCALE_SYSTEM_DEFAULT, // System locale! U+ g: _0 D8 E z* Q8 ^" L
&pokeID); // Array of IDs to fill on output# N6 R& F a& }) z; \
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if (hr) R. }+ X: T& J+ W0 h) C { . `2 g! z' h2 ?% z) s8 m MessageBox ("Get Poke Unsuccessful"); 5 J0 D3 e- {, q2 h- g. Q return;2 [3 z, j6 D& t+ N/ l
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/ } @- j0 d5 N* o! i/**************************传递数据给extend**************************************/ u5 S; @1 y3 `0 {* A" m6 Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" W# [/ U* V. T7 O
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valueStr = SysAllocString((WCHAR *) L"1232"); 9 \; }1 C7 f3 J0 |+ I+ F+ M VariantInit(&pokeVariant[0]); # B6 \* q1 y7 \, P pokeVariant[0].vt = VT_BSTR;+ q" e8 l `& A- z; y' `& `
pokeVariant[0].bstrVal = valueStr;8 }; s' N% w! S! x
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 X1 A& ]# N" c VariantInit(&pokeVariant[1]); : o% ~* B3 Z; O7 {, a% E pokeVariant[1].vt = VT_BSTR; 3 M4 c$ Z/ t* C pokeVariant[1].bstrVal = itemStr; 4 X1 l, s% |; s) W/ R B 2 {2 s9 q r, N! S g e+ I. P topicStr = SysAllocString((WCHAR *) L"system"); ; g0 w# v4 q2 H, m! r, q3 O8 O4 F VariantInit(&pokeVariant[2]); 7 K, ~' ^5 \7 J) l- {& V1 z pokeVariant[2].vt = VT_BSTR;1 J+ u! u& x4 S- d$ A; }7 c1 D5 i
pokeVariant[2].bstrVal = topicStr; 0 S% c8 N+ f4 j4 j) R4 s& l' a' v- h4 A4 h, w
// Set the DISPPARAMS structure that holds the variant. 3 J! M6 F7 L1 N1 H b6 R4 V 5 }8 G: r, I- x* i dp.rgvarg = pokeVariant; ! g" X, e$ s* F# G% E dp.cArgs = 3; 4 N/ @3 e' f; M6 D dp.rgdispidNamedArgs = NULL; * ?3 W/ X8 X5 W( @6 C0 S dp.cNamedArgs = 0;3 W/ ^7 v( o( S8 i9 o, _2 I v' y( r
. u( q) y& q" A2 y// Call IDispatch::Invoke() ! w) r/ `: R+ Z9 m- } z % R7 m' ]( l7 s0 ?, V hr = m_pDisp->Invoke( $ D0 r2 y, z. p8 D# X+ r# K pokeID, 2 j: n, ^0 V: x3 G o IID_NULL, 0 H( c' A6 `/ z, c( S, x LOCALE_SYSTEM_DEFAULT,6 r/ Y) p4 E' [' ^ d. g2 X
DISPATCH_METHOD, ( y* Q! @& a# m1 W4 \) v2 v: i9 m" `) ~7 } &dp, % ?% F$ J o9 ^! s& G. [* f NULL,( e" R' @% [/ Y! W0 k; T
&ei, 5 V, y2 Y# f2 G &uiErr); # K. i2 l" N) [: } ' @) E! h5 C0 m1 l SysFreeString(topicStr); 3 @. R4 ?2 w# f6 ~5 o SysFreeString(itemStr);. b! y6 H+ ?. |0 H) U `
SysFreeString(valueStr);0 k) `5 z$ ~& B( x# R+ S2 [' ]1 L
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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??? # o1 z; p q! \5 g9 h) ~" P3 O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????. U8 b6 }7 _9 k! B+ c
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2.这是request的程序0 E' b t0 x- _1 O& X0 \% l0 K
// Request a value from Extend) M6 ]: i+ [% \5 P7 Z, w
// 7 q3 M# @- n) R8 E0 g: ^$ z7 M// Initialize the variant that will hold the BSTR. Set the variant's # {9 o+ P9 P* l- L& K2 a% R// type flag to indicate the fact that this variant holds a BSTR. Place the, L" s+ N1 _& V
// BSTR into the variant structure.! q( r/ T% r! C* j4 c
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 \5 k5 k* s# ~- H/ N- ~% W
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 F6 l+ ]8 I3 D, K8 ] t9 h) j VariantInit(&requestVariant[0]); # V* W& b s3 }% e [& }# a& A
requestVariant[0].vt = VT_BSTR;. { g" s" i# k3 w& e3 H+ x6 n& K
requestVariant[0].bstrVal = itemStr;+ @8 l) G; O1 a% O1 t, |& j
+ Y& L" ^) f+ Q; j topicStr = SysAllocString((WCHAR *) L"system"); 1 n3 E% n8 {/ g3 M3 r3 v VariantInit(&requestVariant[1]); 6 v% D, l" P# R& j: f+ A' a# Z: k requestVariant[1].vt = VT_BSTR; 0 {5 ]& @' {1 {0 S' {8 g requestVariant[1].bstrVal = topicStr; / z9 u6 y! F7 @& w( k, h U2 w4 f$ N( V$ I
// Set the DISPPARAMS structure that holds the variant. 9 ^' D7 C( F9 H% Z! w / x( R8 G' e. \4 N5 n dp2.rgvarg = requestVariant;( v# d* s$ \2 K* Q6 ?
dp2.cArgs = 2;4 o3 E2 B( z! n2 i3 {3 |
dp2.rgdispidNamedArgs = NULL;1 f8 }' ]) u" |. A$ F
dp2.cNamedArgs = 0;8 W8 e0 @5 s5 v$ j3 x
4 W& u6 Q# @, o8 I! T% L/ m3 P var.vt = VT_EMPTY; : l, \- O9 Z# i8 U1 o/ l7 o( d, y7 L* I' G9 S
// Call IDispatch::Invoke() 4 F& y. H O, m1 h& O& ?# b, f% m& D. C; K$ r( `! U" }
hr = m_pDisp->Invoke( / D# a2 B3 v% o S' V1 k }) s requestID," a: d: w: r" a1 F6 k- F( S
IID_NULL,, D( F. P( {- V* H! u: n {
LOCALE_SYSTEM_DEFAULT,2 |$ K# O1 m8 T+ |7 B# ~& S
DISPATCH_METHOD,& W! W0 F" R" C6 ~5 r( r
&dp2, * n! X" o2 @) h! D% M4 K &var,8 v5 t# s+ O8 Q3 T
&ei, $ |+ _& y9 R! b( O j9 f/ x) r &uiErr);5 |1 k, i4 u5 B9 W: g( Q3 k