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: 7 ]$ y7 G; J" E; nName = (WCHAR *) L"Poke"; , ~/ F$ Q6 E* Y. ]5 Y 9 A( ~ ?! _- u hr = m_pDisp->GetIDsOfNames ( 7 x2 j! U& P; p0 k2 p, t+ x IID_NULL, // reserved8 Q; I1 ^+ W5 J- Q* ` i
&Name, // Array of names to get IDs for % m/ p5 U9 ~0 t1 {3 R% o 1, // # of names in the array 0 F' C9 L7 _$ q! _& S: G LOCALE_SYSTEM_DEFAULT, // System locale 2 T( m) |& T! `0 O &pokeID); // Array of IDs to fill on output# l, ~6 E$ G5 r7 _7 O
+ B5 F% i! u3 T if (hr) # X/ K& F- `; s {" L* A, X( z' ]) U# L$ V
MessageBox ("Get Poke Unsuccessful");0 U- W- \$ }0 |) |2 W
return;3 f8 u8 z/ G; Z/ z) D* Y9 Z# Y8 u
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/**************************传递数据给extend**************************************/& i0 ~: q9 P! [! o" f5 `$ C$ a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* }; i( t# E9 {3 e% p
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valueStr = SysAllocString((WCHAR *) L"1232");% I: H9 ~, c6 g: j
VariantInit(&pokeVariant[0]); # H# D& h- L: g5 i$ s) \ pokeVariant[0].vt = VT_BSTR;4 v8 R! ]9 F0 x9 Q# ?
pokeVariant[0].bstrVal = valueStr;* U. ?4 Z. l0 H! _! j$ A7 J
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 B% C7 ] I/ g VariantInit(&pokeVariant[1]); 6 _$ P( o3 ^' ~- F pokeVariant[1].vt = VT_BSTR; 1 t3 d( f X0 S3 ?4 k- ~ pokeVariant[1].bstrVal = itemStr;' q( S$ M" t$ S5 E5 q* k) i
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topicStr = SysAllocString((WCHAR *) L"system");, t, m$ }3 ]% z& Q- a+ D
VariantInit(&pokeVariant[2]); . W$ K1 P7 ]$ b5 ]7 f pokeVariant[2].vt = VT_BSTR; . R6 P; \; L& V, b) ?( {- A pokeVariant[2].bstrVal = topicStr;; c) {4 I H* R
, J9 d/ e: `5 f/ J9 g// Set the DISPPARAMS structure that holds the variant.7 k. v1 [/ z4 ^' v
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dp.rgvarg = pokeVariant; ) @* d4 V% C8 q8 @9 d5 P: @2 Y dp.cArgs = 3;% l5 j5 X/ V! @# _! T9 k6 c
dp.rgdispidNamedArgs = NULL;) ?4 O! A; @- L% Z+ L
dp.cNamedArgs = 0; - d* z& O( ~5 x2 u, T / V+ X0 [5 k! A2 Q* O8 o1 \// Call IDispatch::Invoke()& w, F, i7 l2 A5 y
, M$ \. a2 m% b3 h hr = m_pDisp->Invoke( ; o, j5 V9 z4 L7 S) s7 i pokeID, 5 r) L3 L7 t0 `' A& @& s5 U IID_NULL,$ F9 W& P+ n5 ]; a
LOCALE_SYSTEM_DEFAULT,- b" I7 h; d( R, x% }. c
DISPATCH_METHOD, + X7 _9 ?$ z* C &dp, ! Y2 t7 ?1 r5 x7 w+ g NULL,7 N i! `2 S! V. w( P: }
&ei,% U; E9 j9 k/ W$ ?
&uiErr); ) o7 {/ m5 `2 c3 Q0 U; A4 j: q6 H5 U6 ~# W
SysFreeString(topicStr); ) e c1 ~, ~5 x6 f% B! M7 P9 [ SysFreeString(itemStr);" o. r: Q6 P' ~5 }' m7 h/ P
SysFreeString(valueStr);, ]6 P9 B2 y, F3 {
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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???+ e/ E; h* T* S6 K! [9 w
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 m) R# W, f8 O g( Y # d* b- Y4 C- t* u2 t$ `! Q+ y ' [5 y# q1 }7 d2 n! \: U5 a2.这是request的程序' U* g" N+ x4 l2 Z+ D. {: p
// Request a value from Extend8 X- T' J& p- o7 r
//$ v1 r2 n7 f- T" a P8 B
// Initialize the variant that will hold the BSTR. Set the variant's ' X8 @9 a8 P6 w, |. O% `2 s- @$ w// type flag to indicate the fact that this variant holds a BSTR. Place the 8 L$ U; ^: Y+ z5 ?$ D: x// BSTR into the variant structure. 3 ~' J2 n- ~( {9 l, P: a' i X0 m% D0 q( I
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! Z$ D4 d4 B! {( d: e- m9 l , f+ k/ m* j8 R) n5 S9 E* H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& y7 O4 g8 H. i# d+ I+ i7 e
VariantInit(&requestVariant[0]); % }& x" C4 G! C3 X- S$ P+ v
requestVariant[0].vt = VT_BSTR; + W9 g+ H0 L2 @0 B, g) z. M requestVariant[0].bstrVal = itemStr;: ]) ~7 j) a7 E
/ r0 y- V. C$ _: U! b. b% A8 k; U& F topicStr = SysAllocString((WCHAR *) L"system"); ' N; |) F% T: k2 w8 D VariantInit(&requestVariant[1]); : X% ?* V8 K9 D+ c( a; O# f2 w# e
requestVariant[1].vt = VT_BSTR; 7 C4 G" M- h9 i requestVariant[1].bstrVal = topicStr; * Q9 N# L" T0 j$ }( N8 t7 F. j( k( |. }( F r8 O
// Set the DISPPARAMS structure that holds the variant. . k) ^0 m' O$ Y$ M0 @0 t# M7 M5 A7 t. j6 G1 S! t. K/ e
dp2.rgvarg = requestVariant;% u- t& I4 l- k! ?
dp2.cArgs = 2; . T; g' v5 \' K7 `! I dp2.rgdispidNamedArgs = NULL; ! a- }8 K! Q, {( I" {9 d% W dp2.cNamedArgs = 0; 1 Q7 J$ B0 E0 C& `7 ] $ `+ Q1 y9 d! u' W var.vt = VT_EMPTY; " M' |7 e' M6 t; Z& ~ 1 u7 w+ S% I2 r4 f" t3 T) b// Call IDispatch::Invoke() % m6 }/ n8 t* F; n0 G . F4 t* g7 I1 u' @6 G hr = m_pDisp->Invoke(% `+ Q8 N! f) m1 |% u4 D0 i4 @3 _ D
requestID, 7 {' N# J6 z0 I' k1 J2 L4 K IID_NULL,. L' r! y' r9 \; P9 v9 N
LOCALE_SYSTEM_DEFAULT,0 W8 U% e! j# M6 I; R( o2 U8 G! _
DISPATCH_METHOD, 4 M$ i4 E( E& \+ t8 U &dp2, 8 z% |( R4 c$ F4 J &var, ' M0 i3 j0 l" S& Y" w &ei, % e! D+ R( z$ a$ [8 h &uiErr);5 b f# [. N8 N8 q1 R: z
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SysFreeString(topicStr); / c5 q' t }1 Y7 t% W SysFreeString(itemStr);. P3 ?$ M( Y. }/ C+ s; \, k
请问该程序是获得extend里面的哪个值?4 `% N0 u& [2 L; r8 k- `; R3 b7 ?" B
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????