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: 1 F9 {) g4 x" T" W# ^Name = (WCHAR *) L"Poke";/ f! r+ X$ q& _% U! A
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hr = m_pDisp->GetIDsOfNames ( # h7 g! [5 m: ^3 t0 } IID_NULL, // reserved2 D. X8 U% Z" k3 [6 a( {$ l
&Name, // Array of names to get IDs for" }- k- I) q/ s" [
1, // # of names in the array $ w ~) ?" |, p3 d7 U0 ~1 G LOCALE_SYSTEM_DEFAULT, // System locale) Z1 r' V; [9 J x) c) Y2 M
&pokeID); // Array of IDs to fill on output 9 D9 e6 _( I; c# W( R % T' B7 u1 n+ a* {( _* t7 |
if (hr) ]3 c; R! Z% Q$ u/ W# d
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MessageBox ("Get Poke Unsuccessful");7 Q" R% [8 d+ J* u6 O) z$ F
return; 9 a/ [: e& U" q# C0 o6 t8 ?2 s }6 J4 A1 q M' y
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/**************************传递数据给extend**************************************/+ L+ K: x. r/ [* e4 T! o) C1 g! N
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " W( \- o' O5 \ - b% c4 c+ P+ @5 V5 P; L& I# C2 u7 A0 l valueStr = SysAllocString((WCHAR *) L"1232"); 0 n+ g6 h3 s, j; i VariantInit(&pokeVariant[0]); * |1 I: u8 P( _. v' N N pokeVariant[0].vt = VT_BSTR; . [# J( N4 z- ? u" o pokeVariant[0].bstrVal = valueStr;3 a6 C$ k1 ]; ^2 l$ _0 I+ O0 R
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( u& B5 v. B" @2 i9 L! V VariantInit(&pokeVariant[1]); ( m: F+ @% r% R) t# o' W
pokeVariant[1].vt = VT_BSTR; 4 S% D! z( W) e/ u' k/ |0 @ pokeVariant[1].bstrVal = itemStr; L3 I! _! E% V: K( z : b0 H6 G0 [4 f4 ?. e topicStr = SysAllocString((WCHAR *) L"system"); / N4 ]* ~+ e1 e2 R1 I VariantInit(&pokeVariant[2]); 9 t* P4 A( r$ S. l$ Q- r, V. s, a i pokeVariant[2].vt = VT_BSTR; 2 c7 ^& U/ k; n$ F0 s, L pokeVariant[2].bstrVal = topicStr; & R% B6 i! L& p* B9 S8 j 4 G/ S% l2 u5 _4 s9 ~: Q- k( H// Set the DISPPARAMS structure that holds the variant. a+ h8 @; Z9 y0 @2 u8 ^ 7 H- M8 a% B- T% p; w" x7 _5 c dp.rgvarg = pokeVariant; 1 {" o( p% J) u- G. J) q dp.cArgs = 3;; V- f% V# B' D* s* T
dp.rgdispidNamedArgs = NULL; 4 ^; u. p% r& h5 G dp.cNamedArgs = 0;1 ?9 D4 J: F& q c% d/ B' R
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// Call IDispatch::Invoke()- m) Z- l! l( k7 J- Y8 c
& i, Q. r5 x) @8 J( h9 n hr = m_pDisp->Invoke(5 J4 }4 E5 t# y- R H# h& r9 X
pokeID,# Z( }: w+ D% I8 _2 Q2 b/ @
IID_NULL,9 u) u" t) s& T# y0 g
LOCALE_SYSTEM_DEFAULT, + w+ x/ ]) a& F7 b DISPATCH_METHOD, 3 @6 H+ I+ ~" z2 y+ @) @ &dp,! V* v7 C4 [, |# K
NULL, 1 g' ~& s$ e( K2 e% f6 |4 \# D &ei,# Y: j/ w& E: Z4 n( @
&uiErr); * O$ Q& d( A8 V' l0 K( C+ m 0 U" c3 T: ]# [- U SysFreeString(topicStr); 4 I' l+ n: M+ L8 q) j* y" s) G# m1 G" K SysFreeString(itemStr);" U7 t" i! [" ` } Y \4 H
SysFreeString(valueStr);! Y8 H& _6 J$ J2 p# I
% e6 u1 w. B4 J% W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??? # P: Y0 R# {3 g' 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????, {: h) l, R4 o: O# N6 f
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% q9 q) Y. V& o8 ?: S2 @) S2.这是request的程序* I- f6 K' o6 h, f/ {7 g' B0 G
// Request a value from Extend; ^2 E( H; m4 S# n8 X' h, a& f, I
//- }' C( g2 \ h
// Initialize the variant that will hold the BSTR. Set the variant's 9 U8 A: O9 G4 e" g// type flag to indicate the fact that this variant holds a BSTR. Place the. X% H, k' ~4 p: k
// BSTR into the variant structure. 1 f+ i9 ]& ^4 a' o# ~/ `5 A ( O) K8 }0 H3 c$ ^% r d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' Y6 m1 X0 w* \: v( b# Y 4 ?, f. C: [6 @, ]' W
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ O6 Q9 _4 \ r( H1 J
VariantInit(&requestVariant[0]); 9 [/ _+ m" J$ O" K% j u% P' p requestVariant[0].vt = VT_BSTR; , h) F0 h: q8 `6 y requestVariant[0].bstrVal = itemStr;* D" q9 i9 {) n" E$ A4 y( o0 z* w8 h
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topicStr = SysAllocString((WCHAR *) L"system"); , B8 a; e0 y+ T0 Z VariantInit(&requestVariant[1]); ) }( i$ A6 M% r, A requestVariant[1].vt = VT_BSTR;. L6 ~" e0 A7 |( v
requestVariant[1].bstrVal = topicStr;: K, P B6 ]; F, {0 P
5 {" [5 C/ e1 x, A2 p' i$ a// Set the DISPPARAMS structure that holds the variant. * W6 h) J0 v* W4 `2 G: E5 |$ o; B2 Z: d
dp2.rgvarg = requestVariant;+ @* M) v3 a9 |$ t
dp2.cArgs = 2; , h- f3 M4 I/ O" ]& q. U1 [( ^% Z6 x dp2.rgdispidNamedArgs = NULL; " [9 O# Q7 o f8 P; W9 s dp2.cNamedArgs = 0;# X5 H+ Z7 O: u