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: " J8 Y9 ^+ e+ f* R* E& d6 |Name = (WCHAR *) L"Poke";) ~& x p) Y {- v5 n) g+ `( L# D
% j& M! D# R3 ?! R hr = m_pDisp->GetIDsOfNames (! O5 O( E- l% \: J6 [* h& L9 w
IID_NULL, // reserved - d4 ]4 L% h: ]4 U0 p# K8 x6 L1 O &Name, // Array of names to get IDs for " `2 I: f$ h. S) @ 1, // # of names in the array$ f. Y0 r) w, p4 c) e% t* a
LOCALE_SYSTEM_DEFAULT, // System locale 3 Y$ j/ q5 ^( C1 ^+ B &pokeID); // Array of IDs to fill on output: }( O) u6 I9 G6 ] A8 _
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if (hr)0 X, n; d* s/ ^) M& H- e
{ & W3 g, w8 ^- s* }1 Z) M9 k2 O MessageBox ("Get Poke Unsuccessful"); 6 ?4 U# Z* S1 M# b. ]3 C8 K return;* p4 Q: z: S. X: i7 ~% g
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5 i0 R& ? X |: ]9 |; m/**************************传递数据给extend**************************************/ ; d% p8 z: D& W' n pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / h+ O" ?( u/ ~$ S% q( E" A ! s6 C0 h: M) |! q% R valueStr = SysAllocString((WCHAR *) L"1232");$ s$ M1 }! z& a2 L; f3 d+ x
VariantInit(&pokeVariant[0]); " V5 _+ X; ~; {9 v0 N, y: C pokeVariant[0].vt = VT_BSTR;- ?: ^$ o5 M' E9 e; t
pokeVariant[0].bstrVal = valueStr;7 o+ t/ @) u [# ?0 G9 g" M# S
7 P: c" K7 Q% a7 a9 h) S- A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # W1 S3 P: X0 m }' h5 \1 b2 L VariantInit(&pokeVariant[1]); 4 d' I# P" @* Z. [7 g/ a pokeVariant[1].vt = VT_BSTR;. N8 T* d# y/ g% K
pokeVariant[1].bstrVal = itemStr; 9 i; L* @3 p- y. n n: O' M+ h ; { J, Y: T5 b( Y% L0 I topicStr = SysAllocString((WCHAR *) L"system"); " c) ~; N) q, c. A; h VariantInit(&pokeVariant[2]); ; j, l7 v, @, E/ r
pokeVariant[2].vt = VT_BSTR;% g& J2 K- k8 X% {- i" o+ q k! D @
pokeVariant[2].bstrVal = topicStr;+ X1 Y* b5 l9 k( T+ h
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// Set the DISPPARAMS structure that holds the variant.; }5 K+ k N, N% E
& k, I( I. k. ^2 V, R) I dp.rgvarg = pokeVariant; , H3 A/ K& [. }7 e4 l8 x7 l J dp.cArgs = 3;" e7 W1 C. s$ h3 o' M! n5 ]
dp.rgdispidNamedArgs = NULL;3 ?' I5 f% L) U( {' V
dp.cNamedArgs = 0;. y0 `; Z, U, I" ?
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// Call IDispatch::Invoke() : Y6 W. I" R4 f! s+ S. @7 H9 {; M+ n8 o5 @
hr = m_pDisp->Invoke( / I8 U9 B- X8 ?& _3 l pokeID,/ S9 o) b% j. i
IID_NULL, 6 P! a( S& z& ]' _% D' Q LOCALE_SYSTEM_DEFAULT,- ^" ?9 D1 W1 {& Y
DISPATCH_METHOD,2 b7 N9 n% N" w4 w( o
&dp, & z5 Q" B. g2 E NULL, " v- h! L! {" v+ n$ p) D4 t &ei, / v( }: |3 V$ o6 c# C. H+ d &uiErr); & b7 p: ]$ A2 `4 d) R! h) R/ ^; l2 l/ H, |: d) c- N$ K C/ _
SysFreeString(topicStr);0 Y# {. p; e. r- V! c1 }& F/ V0 q
SysFreeString(itemStr);; o# U5 ^: h$ J- G4 j* F+ @
SysFreeString(valueStr);: j* `" g# z6 M/ Y
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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??? 8 S7 m/ V7 U8 n) v) G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????5 b' \- x4 F- F$ o/ L/ [
' k! w! `( E v3 b; C0 e/ ?4 J$ a% q ) w' z5 V5 ?8 w4 n2.这是request的程序 + t# E7 }+ o8 F5 @/ n0 }// Request a value from Extend % Q6 Y m$ y: [2 ?/ Q/ E! ?//, [! y. k+ q' `" h) k
// Initialize the variant that will hold the BSTR. Set the variant's 0 c& D# u$ P6 i7 X! Y! o# N// type flag to indicate the fact that this variant holds a BSTR. Place the1 q+ p+ h& X' J1 }* L( z
// BSTR into the variant structure.* A. j1 X" P/ J) Y
, ?9 T8 `( a8 o' B/ G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, E) `& j0 _ \, J9 g W! ?* q
. I& O6 L/ `0 W3 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 g7 M" {7 F' z! [- p' w$ s' J7 q
VariantInit(&requestVariant[0]); $ l0 \2 c+ \3 g/ J0 f, Y; z8 E. o requestVariant[0].vt = VT_BSTR; ) X! @- V- A6 \" E/ a requestVariant[0].bstrVal = itemStr; @ `5 d5 l, {# @9 u% |& m5 X! Q3 s) `) B6 S- ?
topicStr = SysAllocString((WCHAR *) L"system"); 3 O1 r, H6 }4 G) \( | VariantInit(&requestVariant[1]); " L1 T8 P: G+ K
requestVariant[1].vt = VT_BSTR;3 q. W! u1 }5 g% t. x
requestVariant[1].bstrVal = topicStr;0 X9 f0 \/ y# p
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// Set the DISPPARAMS structure that holds the variant.* R, @! ^" f, H: [3 M0 q
! L) g) i$ [5 F8 V0 a dp2.rgvarg = requestVariant;7 m" a, ~4 r8 ^- C3 _# Z9 a
dp2.cArgs = 2; 4 T4 T# I. {' ] dp2.rgdispidNamedArgs = NULL; 9 w# @9 Y4 y) J* P dp2.cNamedArgs = 0; ) d. x& z+ q. W: ]6 P7 Y, E* G; w# S9 a3 N' ?
var.vt = VT_EMPTY;' i2 U3 C. P& u* R
% m& j; e' Q+ S( y. D2 w// Call IDispatch::Invoke() " o3 D/ B" a/ ^, j3 y ! g) v" Q' w2 \" ?! P hr = m_pDisp->Invoke(& ]; e, X: S# h: Q9 R7 G6 M% Q7 j
requestID,8 f; D( ]4 }# q8 a! `) M
IID_NULL, , _8 ]" `& D) }' j2 y5 I LOCALE_SYSTEM_DEFAULT, 9 n3 n) ^, M% D3 h) b DISPATCH_METHOD," U- I% [6 Y! d O2 ]
&dp2, $ ^' n. V+ D) R &var,2 b- S0 j g5 |! \
&ei, / i/ u% M5 `% E& }; m &uiErr); 1 k( w% m F1 x1 _+ @( U5 O6 p+ ^+ S- o1 } l' T: s7 g4 o
SysFreeString(topicStr); - l. v! H" @, h! Y8 q) _3 e SysFreeString(itemStr); 2 Z9 t" F) H) W3 @2 i' w7 ~请问该程序是获得extend里面的哪个值? % h/ `& e0 Z9 h0 ?+ k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????