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:3 ]& B8 P9 r' @2 c
Name = (WCHAR *) L"Poke"; + w( J1 S5 [4 Q . [* B* V) u* K- `8 D! N
hr = m_pDisp->GetIDsOfNames ( # M$ P5 C) g7 ^/ K6 X IID_NULL, // reserved 0 |& x' l/ k% Z4 G &Name, // Array of names to get IDs for 1 `% B# _) ? m4 c. K0 V 1, // # of names in the array $ m/ X! N) f: _* K7 Z LOCALE_SYSTEM_DEFAULT, // System locale1 e3 A$ e, z0 z
&pokeID); // Array of IDs to fill on output/ j2 G% {0 ]2 ?/ A( l* O
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if (hr)% O4 O) _% b9 q2 n% h
{ ) S' |4 {! U) \! _0 \ MessageBox ("Get Poke Unsuccessful"); $ Y7 r9 c$ `* X! E1 ~ return;; u4 \$ {! ^ o. p
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) {+ \9 E/ _# M1 i/**************************传递数据给extend**************************************/ 1 c* W; p( b. G, G; N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 J4 x( }1 [! R5 M4 D2 x
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valueStr = SysAllocString((WCHAR *) L"1232");' T8 L+ ^# j0 k. c0 _. R) V! C
VariantInit(&pokeVariant[0]); 1 y7 B2 a1 I f& G: O& d+ [ pokeVariant[0].vt = VT_BSTR; 2 G$ ?7 I' m; R& t0 |$ [+ a pokeVariant[0].bstrVal = valueStr; & ^( T' [( e3 J. f; L) F0 ~ 3 i* I# c4 R/ d: F- M4 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# c/ n" U5 C. y$ C
VariantInit(&pokeVariant[1]); 8 q5 C5 `; Y+ g+ d+ ?% I. a pokeVariant[1].vt = VT_BSTR;* V5 F) H( @& ~+ ~( W
pokeVariant[1].bstrVal = itemStr;: q6 C3 c( V5 c$ V3 x7 l
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topicStr = SysAllocString((WCHAR *) L"system");! {, d1 F/ l, o1 x0 O
VariantInit(&pokeVariant[2]); - L8 n3 m: g8 Q' Y% t
pokeVariant[2].vt = VT_BSTR; 3 t6 z# P/ G' }5 E8 {+ T# N5 [6 i pokeVariant[2].bstrVal = topicStr;$ \2 c+ j3 |1 h& t' x
5 \* G! \. N" r2 C4 }' l( e! k// Set the DISPPARAMS structure that holds the variant.! f$ n2 m U! m2 D7 j- |0 H
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dp.rgvarg = pokeVariant; + K/ `4 |* l+ P2 b; d6 c dp.cArgs = 3; : P$ m1 E4 e! r# @3 E% v8 E dp.rgdispidNamedArgs = NULL; " s- ^* K' `+ q) d9 Z dp.cNamedArgs = 0; 5 N8 ]- @1 U$ v. L- P3 ]' W+ X, Q. @+ m/ _2 ]* Z7 f0 W
// Call IDispatch::Invoke() $ M( Q8 a' T4 s+ Q4 S, l; U! @- P/ v3 y- Q8 t0 D
hr = m_pDisp->Invoke(4 V, t3 @. g$ D/ I: @2 A
pokeID,+ [- ?7 m/ Y5 g# [. m5 @# i
IID_NULL,3 H* Q% d+ \, L* u- F7 S) D2 V$ l
LOCALE_SYSTEM_DEFAULT, 5 K2 S3 G) S7 h7 w DISPATCH_METHOD, : s: o- k0 q3 I& M4 g# L( C, `$ U &dp,( E. N8 {9 i, M+ d7 a& l& T
NULL,* U* J5 H* I& P! n
&ei,! U. _1 ~# n6 _2 W6 }1 ^0 U
&uiErr); 8 I3 i5 T4 K) q0 m' C' m) l5 j- {, k) F+ P+ ^0 E: x
SysFreeString(topicStr);" o* _ F) T5 R# J: a. x" I
SysFreeString(itemStr);$ G7 T( b7 i' K' n I3 E# I
SysFreeString(valueStr); ! Z# r; _. P% `* C3 x% f6 X* o& W7 X8 m4 P( m
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???4 s. h1 d) g& D5 y J+ U4 h1 p
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???? ) W2 G F" [ U- v) Y: R: P) }, w6 S! \9 {; S: E
9 i2 d7 {% g% I2.这是request的程序% T% A9 r3 }: _; a4 ?* u! P
// Request a value from Extend- @; q. k# j* M
//- P$ ?2 J, {: x1 K5 [/ r/ q
// Initialize the variant that will hold the BSTR. Set the variant's / m2 Q* A1 ~9 z, E// type flag to indicate the fact that this variant holds a BSTR. Place the 4 m! B% E) w% k4 Z// BSTR into the variant structure. " u D, I0 B& E' `: R& N8 G- D( x6 X" C2 F1 E7 i/ z) N
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 b& \- M. G/ q8 @# N3 ~- s2 H
, }! g* B0 x" j0 o; @! x' E. M itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 f/ J4 ~7 d- _- z VariantInit(&requestVariant[0]); 4 _6 \7 L0 h8 f+ n+ Y! S requestVariant[0].vt = VT_BSTR; " R5 i' ~) B3 z5 I) q' ^0 ^+ O requestVariant[0].bstrVal = itemStr;+ C: D7 S# u, R7 ~, J5 f5 H
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topicStr = SysAllocString((WCHAR *) L"system");+ j% H: k# F$ F0 ^0 ?
VariantInit(&requestVariant[1]); % w9 K: F4 J0 H, F S+ v+ T. @6 h
requestVariant[1].vt = VT_BSTR;; E9 ?3 Z3 P8 h
requestVariant[1].bstrVal = topicStr;, X- k+ _( l7 v
* q" u3 s. |! {7 T( Z// Set the DISPPARAMS structure that holds the variant. ! p0 ^8 Q! C. ^& L& F4 g( Y% G& [- O2 R# u
dp2.rgvarg = requestVariant;! Q9 {' V. |) Y% m8 c& t( b1 @
dp2.cArgs = 2; f" x- k' X/ T
dp2.rgdispidNamedArgs = NULL;; H8 y/ V6 l* r. }' y/ @
dp2.cNamedArgs = 0;; k6 a2 z2 l1 X: ~( k7 V