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: 9 e( N& N a" @+ ]! z, [/ p$ hName = (WCHAR *) L"Poke"; 1 s; u6 c& r8 ]& y1 [; _) `3 [* | * Y# u' K6 f' @2 R( P hr = m_pDisp->GetIDsOfNames (9 f, ~- ^' g$ S
IID_NULL, // reserved6 c) T g9 B' t* {: |2 O( g
&Name, // Array of names to get IDs for 3 h% c* Z X* }7 ~% L8 U g 1, // # of names in the array 7 B4 ?" F' {# P2 P& i LOCALE_SYSTEM_DEFAULT, // System locale ) j1 D3 f) A$ c, S3 |& p1 T! e &pokeID); // Array of IDs to fill on output $ [5 n3 M( N* K8 y! p0 k 1 Y/ ? H$ U# T- u- i# e
if (hr) ' Y' ~( |/ R# U { " h/ ]' _$ Q; f: x7 Z MessageBox ("Get Poke Unsuccessful");0 z" U0 h/ C( w- j
return;$ K5 A3 L8 y3 L. j7 ~( N
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9 U- a" T6 `/ W" X3 K$ w# @- n/**************************传递数据给extend**************************************/' U! h z* G/ h2 r
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' w( o# q' P( l7 n6 D) u 8 H1 ^- R# v0 P2 l( z
valueStr = SysAllocString((WCHAR *) L"1232");5 M' s( s5 m0 K, |8 v
VariantInit(&pokeVariant[0]); 6 t, g4 p0 r9 ] z/ u: I. c pokeVariant[0].vt = VT_BSTR;3 n: ]3 |) _) _' ?7 n; l8 k
pokeVariant[0].bstrVal = valueStr; # S; M; {6 x9 U& j! p! k9 X' V; R5 w + ]( j7 p; o; I9 l) ?0 B, X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 d. D9 M3 L6 n$ |3 e- J6 k" F VariantInit(&pokeVariant[1]); . d" v" i' `: d3 } ]* b pokeVariant[1].vt = VT_BSTR;" C7 B% s8 Z2 m3 L9 b
pokeVariant[1].bstrVal = itemStr; 1 @1 l8 z1 t3 I8 X; C ; S+ L$ n' W) t1 i. l topicStr = SysAllocString((WCHAR *) L"system");9 C. O5 M9 { Q7 ^
VariantInit(&pokeVariant[2]); , m( C( p3 Z" Z: R! t
pokeVariant[2].vt = VT_BSTR; ; u- [3 }& u L7 j( N- o0 e% ^8 b pokeVariant[2].bstrVal = topicStr; 6 `' Z" D$ d8 N7 q - d, W A8 f4 q) ~// Set the DISPPARAMS structure that holds the variant. Q4 D0 e+ ]7 u- x; N" ^
* T6 K B. u( b* P dp.rgvarg = pokeVariant;+ _9 q; L0 n6 g2 A
dp.cArgs = 3; 9 P K# t) K; w dp.rgdispidNamedArgs = NULL; + J3 ]7 K$ e8 F. m dp.cNamedArgs = 0; 4 b, Q3 @ e" q5 L1 N8 `' y, ?8 N" E7 e, B3 m0 B
// Call IDispatch::Invoke() i3 Q6 Q+ Z4 y1 S ; ^/ w, L, h1 B7 k7 W& B hr = m_pDisp->Invoke(5 C# D7 b1 j! f' ?6 p( X1 ?# L
pokeID,# V7 F- P. C% K6 R2 M" W' J# k B
IID_NULL, 7 S# R# l6 |5 ~) C) l6 n4 \ LOCALE_SYSTEM_DEFAULT, 2 p( j# O9 T! g4 e DISPATCH_METHOD," H3 Z" k7 W: [+ {8 e, G8 y/ {
&dp,, X* T# {0 Z8 F+ X0 b6 N
NULL, * [" Z2 {2 O! Y m$ Y1 G% T& q &ei,: ~* r. @, E, A3 F+ [" b ]
&uiErr);0 Q$ R+ b( r4 ]# A/ B/ z
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SysFreeString(topicStr); 2 a+ `- d9 n. i/ j) }5 V SysFreeString(itemStr); 9 J! e* R3 S1 X' ] ^: a6 M SysFreeString(valueStr); / o, m `" i6 L& d" {$ b7 g ' y; l4 I5 h9 W4 j1 X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??? 1 v# v0 y8 n% c& g/ L* C7 z( B6 s V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????9 ?8 ]8 |* I+ H' }
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( k" S ^6 Q% o) H2.这是request的程序 n: G. ~" R4 U6 X/ S B" {( |% q, G
// Request a value from Extend" y( C7 L! ]) N! k6 J, f
// " g4 ?7 F& H' F9 ~// Initialize the variant that will hold the BSTR. Set the variant's* S# Y& E/ \. i( Z
// type flag to indicate the fact that this variant holds a BSTR. Place the& O( |, t- u6 @% p
// BSTR into the variant structure." c7 \- C% A# R8 ^
/ h4 ^. R% N# l requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; ^! H7 @3 A. P b$ }! b G
6 N' r+ n! b! ?9 B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * v7 a9 J( k/ w4 P5 S VariantInit(&requestVariant[0]); j) X# c0 z! i* a) c& |4 d
requestVariant[0].vt = VT_BSTR;" k% n" S! a7 [7 R: z5 U8 I& R" l
requestVariant[0].bstrVal = itemStr; 7 f% K6 U! R. v+ M) U: I* z6 z" o" [( `5 S! D. C
topicStr = SysAllocString((WCHAR *) L"system");! ^' o W) l9 e7 s
VariantInit(&requestVariant[1]); p1 V: V0 d0 x+ q% N+ { requestVariant[1].vt = VT_BSTR;4 N) z5 g9 f: {2 [" W ]
requestVariant[1].bstrVal = topicStr; . U; u, B0 s R- w+ `) F. U ; ~6 V* L! K. o8 M// Set the DISPPARAMS structure that holds the variant.$ f2 x: l; k9 G. O8 a
4 W* P" y e4 W8 j' V dp2.rgvarg = requestVariant;; O ^" ?! N: G& z
dp2.cArgs = 2;+ P% w5 _3 D# G& _
dp2.rgdispidNamedArgs = NULL;4 Y. j* n: Y4 Q9 R+ q
dp2.cNamedArgs = 0; t- Q. ]# g1 R8 d7 b1 h2 Y % G8 d$ E2 S+ c1 J var.vt = VT_EMPTY;, \! g" C1 l% q# i! L