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:# U3 o2 z( o: U0 T/ c! X
Name = (WCHAR *) L"Poke";5 z- H! S& A1 ]) n# p
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hr = m_pDisp->GetIDsOfNames (4 U1 @$ d* z6 t& G) S) u; M6 d
IID_NULL, // reserved5 l6 n' A+ @2 z
&Name, // Array of names to get IDs for: D+ c* O- d/ {# s" j
1, // # of names in the array 1 h& S# m) [/ d6 n9 H LOCALE_SYSTEM_DEFAULT, // System locale2 \1 w) e) a8 G: U0 Z* y
&pokeID); // Array of IDs to fill on output 9 w+ i S4 v% S, A 5 u3 P5 b' |) f% b2 @6 l if (hr) ) ?/ X2 w$ `, v$ `! w. S* h { " l: E1 T" O, g: u; t MessageBox ("Get Poke Unsuccessful"); - k3 {8 H% h! r3 F: S) i0 _ return; 4 i/ M$ r c$ }, C( f3 L; P$ { }( M7 w8 h9 a* L* y) s* I
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/**************************传递数据给extend**************************************/ $ U% l1 }6 r( S: Y- y9 D3 ^ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); , l( ]: M' @; M: E% N5 k) u. E ) V$ e e' \; Z5 ?% W/ y valueStr = SysAllocString((WCHAR *) L"1232"); # s2 h! |$ \' d3 G VariantInit(&pokeVariant[0]); 1 i; R; h8 e1 f0 Q2 q* I# X pokeVariant[0].vt = VT_BSTR; , [* K' b1 o+ v9 r% V! A$ b7 \ pokeVariant[0].bstrVal = valueStr; , G0 u' @- K8 V) k1 ?, F; X4 o8 h7 Q, x' M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / S4 S% [9 k0 a% k VariantInit(&pokeVariant[1]); ) E7 O! O5 T8 C8 Y: U H pokeVariant[1].vt = VT_BSTR;" F/ l' T- ~/ N7 s% V
pokeVariant[1].bstrVal = itemStr; 5 F4 F6 o" l# m; A( X5 D: h0 w: P& R$ w) S c, n3 X( x2 }' H
topicStr = SysAllocString((WCHAR *) L"system");; S# Q" W, e i- u0 V* H
VariantInit(&pokeVariant[2]); 2 n. j7 {) W- A' L
pokeVariant[2].vt = VT_BSTR;) d3 E- _: R1 c# }
pokeVariant[2].bstrVal = topicStr; 4 ] [1 S/ Z- ]2 q6 s& H, A* U6 O/ }# L7 G# V4 ]3 @
// Set the DISPPARAMS structure that holds the variant.2 ?9 z8 |" U: t; h8 {& I
+ F5 }. R3 Y8 M) W dp.rgvarg = pokeVariant; a9 l5 F* H3 E7 C# o7 D; ?
dp.cArgs = 3; / i: N2 I; |$ e' p9 J$ [ dp.rgdispidNamedArgs = NULL; " V5 D- C+ D9 J3 p* b1 C dp.cNamedArgs = 0; / c; `$ _8 O2 s: O4 w; y- }$ z& O$ S! e; V
// Call IDispatch::Invoke()$ b, M0 E' v z! b9 y' W% T" E1 Y! r
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hr = m_pDisp->Invoke(2 D r3 K+ q8 w+ B5 }
pokeID, * I' c8 X3 n. b3 S, t, U# M IID_NULL, ) N* j7 ~+ i! }) w/ ~- B LOCALE_SYSTEM_DEFAULT,) `# y1 f9 R, j5 m
DISPATCH_METHOD, ! q5 a `" k: R! B) ~& f &dp,9 o7 o" _; m+ ?
NULL,0 [1 U* H+ h7 e; a2 r5 W
&ei,( c) ^' M( l) ~) H" \) V
&uiErr);$ p- \& _# I0 Z9 a
2 N0 W2 A, P: s4 Y8 i: U8 o SysFreeString(topicStr);' \2 K5 Z# _( Q) x
SysFreeString(itemStr); 8 i: s: A3 Q1 p( E% i2 d SysFreeString(valueStr);, ?- H2 |/ G9 _- t
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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??? ) Q5 H3 I& o+ ?3 x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????2 p0 J* C: E# k- F
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2.这是request的程序 - Y" e6 H1 U6 B' L2 j// Request a value from Extend3 D& c* J. k" X. C! V" [) T
// 0 _% S% f, O7 @' b. G// Initialize the variant that will hold the BSTR. Set the variant's 0 t' ~9 \7 v: S% B3 y% F: g// type flag to indicate the fact that this variant holds a BSTR. Place the ; i0 q B/ M5 N* W% E// BSTR into the variant structure. ; \4 e2 e( E3 { 1 d( e0 `) |7 L# b5 b% B5 v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 8 ^, C2 Z: c! H9 Q. p & |! u) s3 R8 k6 e- ?( W3 [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 u2 z2 n- [' M$ M- _8 h
VariantInit(&requestVariant[0]); * b8 v6 A. t- _- k) \
requestVariant[0].vt = VT_BSTR;/ c6 | {$ v4 h% \$ L7 [
requestVariant[0].bstrVal = itemStr; ' {) j6 Q; u7 P( f3 `$ t: t4 \ 5 p' [3 T0 U3 w0 ` topicStr = SysAllocString((WCHAR *) L"system"); 8 u8 s& [% @2 C/ ~. {) d& v* @ VariantInit(&requestVariant[1]); ; k) @2 X0 y- L% o, G5 Y requestVariant[1].vt = VT_BSTR; 5 \0 ~4 l/ W* n8 d+ H requestVariant[1].bstrVal = topicStr; ( @4 N; V- u" a' h f4 G$ k * Z% q' V2 o" @, C" E# W/ F// Set the DISPPARAMS structure that holds the variant. 1 h6 r( z8 u) Y5 D# }: @% T1 ? : X; T- q4 ?8 g h( a* {# R dp2.rgvarg = requestVariant; ! n! L: ?. a6 t; }: x dp2.cArgs = 2; ; p" |- R8 M* K dp2.rgdispidNamedArgs = NULL; & g7 r3 p+ X) _4 A7 c% {; B) {; K dp2.cNamedArgs = 0;" l) L- x+ T+ q: f9 |# z( h- n& l
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var.vt = VT_EMPTY;5 {8 v- L* Z7 M: _- O( _0 g! v. K
) C: }0 k0 B( p2 E. R0 n- [// Call IDispatch::Invoke() 0 a& h2 ]: j" g/ c& A, W1 ] a6 G) T. r8 Z T- t
hr = m_pDisp->Invoke(9 `0 r# I; Z3 V! e6 j4 e& o
requestID,3 p' [% x/ W1 [7 f. U
IID_NULL,/ ^) T: ^1 D' f: m. O
LOCALE_SYSTEM_DEFAULT, % u- q/ s) y/ p5 r DISPATCH_METHOD, 4 p, o5 p" n( w+ B# z &dp2,6 O" y" n+ s$ x
&var,; h1 R/ \5 h- C8 I, v8 A- y
&ei,# E' \; Q7 [: w; @
&uiErr);' K, a) Q% z# I" D; Z& r
/ ?. T7 C5 i- v5 W SysFreeString(topicStr);1 ~% A9 S1 `/ m4 m: Y
SysFreeString(itemStr); ! i- Q, _/ b3 v请问该程序是获得extend里面的哪个值?/ g8 g7 B' e' C ^) T" A, Y. i) g2 P
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????