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 ?1 Q+ a# N5 u$ {; {. \/ V; A0 o7 C' s
Name = (WCHAR *) L"Poke";; i. n E% n4 I# ?5 K% J0 i
5 I% {$ e" G$ l$ y hr = m_pDisp->GetIDsOfNames ( $ X5 P2 Y# ^; @' q( N IID_NULL, // reserved 9 Y4 p {; y; B" Q &Name, // Array of names to get IDs for; h/ [9 j1 A$ Z* {% G) `" x J
1, // # of names in the array+ E) V% _) v! E( \8 B
LOCALE_SYSTEM_DEFAULT, // System locale ~( b; w8 b6 V7 l &pokeID); // Array of IDs to fill on output 2 A1 r" K; T* g5 c, C 6 p3 ^ t9 g G- d6 T$ B* I" Q2 u
if (hr)- Z4 j8 }" b; N' A9 V) k$ G5 O7 P1 J
{ 0 b. F v7 _( o: o# w MessageBox ("Get Poke Unsuccessful"); 3 d& g( k7 F6 S/ Z return; , `$ i3 o: n* p; \9 x }, Q0 Q3 ~) t# _2 h0 n
, G5 B" o- V& O2 Z; S0 L/**************************传递数据给extend**************************************/ 3 k% l0 y: I8 W" I( [) Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 a8 m0 n# N5 X, {8 \$ U8 i& u+ \
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valueStr = SysAllocString((WCHAR *) L"1232"); ' l6 E5 M) S9 q/ Z1 A2 w VariantInit(&pokeVariant[0]); 2 g k) O3 v) ^# Z
pokeVariant[0].vt = VT_BSTR; % l8 c' t& q( G+ e/ n2 w pokeVariant[0].bstrVal = valueStr;( X) f e3 d8 N7 N
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , K# }* ?0 \# R6 C( C8 @8 ?' q VariantInit(&pokeVariant[1]); 5 g# D7 l" y: A+ n
pokeVariant[1].vt = VT_BSTR; ; P6 M0 l& s7 ?9 l; Z' `% [( y pokeVariant[1].bstrVal = itemStr; 2 ~9 W1 |1 K7 I9 u, l : h" U5 M0 {5 x topicStr = SysAllocString((WCHAR *) L"system"); ; m( W+ m; R$ Z# z B; Z5 b& R* i) i VariantInit(&pokeVariant[2]); ! O+ K; k' v) C7 I8 X, D pokeVariant[2].vt = VT_BSTR;+ u ^1 F; {' O& [' r* P" B' x% u
pokeVariant[2].bstrVal = topicStr;! a5 [+ r$ h! e
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// Set the DISPPARAMS structure that holds the variant. ; a, S! [( ~, o4 _ ?; e4 L+ e( Y + F& E7 H* L) X) {0 a( O) W1 c dp.rgvarg = pokeVariant;. P2 s; j8 ~/ b) K
dp.cArgs = 3;+ x( d' l2 b8 e1 t r9 ]0 b+ E
dp.rgdispidNamedArgs = NULL;0 v2 t& W4 e3 O6 A' a, P
dp.cNamedArgs = 0; 0 y9 I% X! I% O9 R4 p: Z: V 1 R2 G8 ?1 g. E- p6 h( l$ [// Call IDispatch::Invoke()( n( o: C. C1 s4 I
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hr = m_pDisp->Invoke(: r* a# X2 K7 y$ O0 L4 F! L
pokeID,) b6 U8 N4 S" Y7 ~4 F/ I
IID_NULL, & l4 b1 D3 M% o' t LOCALE_SYSTEM_DEFAULT, 7 j( }7 i3 ?$ G4 a6 l* t DISPATCH_METHOD, , [" L/ j( G+ V7 F$ h- f; y& d3 W &dp, * u9 v0 A+ G1 B& \" s* U5 c NULL,0 m$ P* H" z" _ a8 C: q$ p" j
&ei, $ ?; H- y6 N8 f6 X3 [! v# J &uiErr); 1 P: o* [* p' M! F1 T! V! C' k: I" \ O( ?3 Q
SysFreeString(topicStr); , T9 S% [0 s2 Z! u3 }- v SysFreeString(itemStr);( ~5 i) {- ]; i
SysFreeString(valueStr); : `5 v5 K/ y7 o# q0 x7 n+ D. H# K 8 S' O( i' N; f3 t* k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??? , M, v, q: J! F6 F M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???? ( b4 g& X C3 i 1 ~' N1 X# M: v1 a - S$ m8 ^. T* }9 `4 F; H2.这是request的程序( _0 I* h, d; ~ [4 c6 Z
// Request a value from Extend * n7 v' L- d( G4 b0 ?! y//1 g. E) |; s: J z- x' F; ~+ ~2 S
// Initialize the variant that will hold the BSTR. Set the variant's * M8 x3 d. E' Q* G5 [# c// type flag to indicate the fact that this variant holds a BSTR. Place the/ T _. ]8 `7 Q1 g+ o& l V) G
// BSTR into the variant structure.2 u( y& [9 p0 `2 K
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 T1 t; P: r& Q5 ~4 X 2 O. ~4 v. B3 g; q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " G' h" v9 C! Z, A VariantInit(&requestVariant[0]); 9 l( P& h1 t% W/ a9 Z# n
requestVariant[0].vt = VT_BSTR; : R4 q: V$ \( m; |2 M requestVariant[0].bstrVal = itemStr;) G: ]0 R! b$ v3 S, V1 y( p7 |
8 x" m7 H: q' e, V; O topicStr = SysAllocString((WCHAR *) L"system"); _# V7 V8 K( o2 r
VariantInit(&requestVariant[1]); - ?9 U$ c+ \5 Z+ g8 t$ O0 d requestVariant[1].vt = VT_BSTR;( _. \( I& J) m4 M9 ~! a
requestVariant[1].bstrVal = topicStr;' s) k Y" i* C J- P
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// Set the DISPPARAMS structure that holds the variant. . e8 w2 D3 D: @! U2 F e3 B% D( h- U
dp2.rgvarg = requestVariant;; E! j8 L$ p3 V w1 Y: }: Y, B
dp2.cArgs = 2;2 ~4 v4 {. j4 T S7 ]5 z+ M$ c
dp2.rgdispidNamedArgs = NULL;0 y( O* A6 H7 W$ |$ _
dp2.cNamedArgs = 0; 7 J7 A8 J& R* R) F4 l2 j% A8 P1 z9 c
var.vt = VT_EMPTY; . l2 W2 v! Y4 v+ b9 K- W5 ~# E1 u6 C! |- Y' U
// Call IDispatch::Invoke() - r2 t6 w# J9 D0 w8 Q( ~% ^# i" z; [* B/ T
hr = m_pDisp->Invoke( + ^: y4 d, v" Z) _4 H6 d requestID,1 h" }8 I! V8 y
IID_NULL, + U0 e7 Q( w+ h2 [ j LOCALE_SYSTEM_DEFAULT, 4 y! X4 B5 l h0 l DISPATCH_METHOD,( D0 ?4 [3 \. E9 T# c
&dp2, 8 Z' d1 o7 j% `1 w- U ?0 A, ~ &var,6 l& m$ b7 p$ i
&ei, ( ?9 x) Z( V- b5 d4 ] q! ?2 M0 i &uiErr);- Z7 o; J3 i) z! m* p& y2 g
+ c; Q3 e4 B- t4 E SysFreeString(topicStr);' e# L" e0 a0 M' _. i% L6 ]
SysFreeString(itemStr);- I1 N4 r- q! E1 K# x
请问该程序是获得extend里面的哪个值?# g6 x: z. D9 o
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????