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:' y8 x" _3 K/ p2 S: z2 q
Name = (WCHAR *) L"Poke"; $ D4 X) b; ^: { 7 ~0 Y+ K* b3 s+ L hr = m_pDisp->GetIDsOfNames (# m4 x4 J1 b2 z, M
IID_NULL, // reserved ' K) l# I2 G' c: n9 g/ g4 @ &Name, // Array of names to get IDs for 5 ~2 P$ y! ]8 G b 1, // # of names in the array 9 {5 C, J, o* i! J3 Q LOCALE_SYSTEM_DEFAULT, // System locale: o- v, d ~+ I' }, i
&pokeID); // Array of IDs to fill on output K+ a+ { i, t# X: o/ ~* T 9 m$ w2 o( a/ f" i if (hr) * C' k3 u, O9 W9 a { T$ B: ]$ H; x/ n5 T5 I
MessageBox ("Get Poke Unsuccessful"); 1 j! p3 l2 s# t$ A) ~* H% x return;2 M8 t% `7 ~9 y0 m( b
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/**************************传递数据给extend**************************************// v8 F2 |& { ` ^) ~' m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 Y# G4 X+ K: [8 L( w0 n f" S/ d$ k' w
' F+ `7 `+ U: @, O5 x valueStr = SysAllocString((WCHAR *) L"1232"); $ w) a8 K. D n! j5 C, z7 _9 l1 p VariantInit(&pokeVariant[0]); 7 j6 B& r3 K5 X$ M v l+ y6 x
pokeVariant[0].vt = VT_BSTR;1 b+ N+ ? e$ X* s& H& l" O' w- k
pokeVariant[0].bstrVal = valueStr; 6 [! L7 c: l; b0 w. K# O: [2 m3 b9 B; m2 i' c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 n1 _) n- U9 M( U9 c/ L, e
VariantInit(&pokeVariant[1]); 4 Q( F( [! s5 r9 x; m7 F4 p pokeVariant[1].vt = VT_BSTR; ( `! @! Q1 o4 {; K& {; X pokeVariant[1].bstrVal = itemStr; , l$ ^6 Q% X) A! k # E8 Y2 \6 r; [5 J topicStr = SysAllocString((WCHAR *) L"system");; g3 u ~+ o) N4 O9 L
VariantInit(&pokeVariant[2]); 9 @8 V1 J" \9 J- ?0 ]
pokeVariant[2].vt = VT_BSTR; $ \( K, X7 v4 w pokeVariant[2].bstrVal = topicStr; , i: W+ ^5 u% A6 w+ L6 r7 F3 x' f2 ?! F- g& Q8 [) _; `& `
// Set the DISPPARAMS structure that holds the variant. / e! Y# H D& a: N- L r8 I( K0 t; ?+ j' Q" d4 _- C3 N
dp.rgvarg = pokeVariant;, W4 B& U4 _3 ~/ Y z
dp.cArgs = 3; 3 M/ H0 [ p5 u0 T# Z dp.rgdispidNamedArgs = NULL; 0 E7 ]: K1 ^( c) S9 D dp.cNamedArgs = 0;& G4 l% C$ s- Z% l0 Y2 A& E
$ A D0 D" D6 Y7 S$ s9 t// Call IDispatch::Invoke()9 u9 X [# w7 O( V
. V6 Y4 }; _1 V# w. b) h- ~5 p+ { hr = m_pDisp->Invoke( . U2 } d/ R$ j pokeID, `: n0 U% C: e) f8 x+ w IID_NULL,6 Q: m% C1 s% \3 ]# Z
LOCALE_SYSTEM_DEFAULT, & _: r+ x; E1 T o9 g2 q DISPATCH_METHOD, |. i' R3 _ }/ K! A
&dp,) s0 Q$ n6 J' p! F- ~- a
NULL,4 D. F, }( S5 R
&ei, # a0 E5 r; q- u" q6 Y+ l7 R( S &uiErr); ; n" [: x T# N H " c; h: q* `7 \$ X2 ^$ {9 X% q2 U SysFreeString(topicStr);% t" y W+ N. n |. R! `3 R
SysFreeString(itemStr);7 v# f& a+ M @ U, P# C
SysFreeString(valueStr); 3 ]+ X; g; s. d: d, u: Q: t) o; b; V% A% O$ n. 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???8 Z0 @5 e$ a" S6 q* H* c) E
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????% s% z& c0 w) H
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$ w7 G( Y4 M- Z, ~9 R2 }2.这是request的程序 , w$ Y& P; Q( [/ ?6 d/ K8 o+ w// Request a value from Extend* j0 i# m- q9 @4 X8 q
//2 S8 S) f7 M& ]2 O4 O
// Initialize the variant that will hold the BSTR. Set the variant's1 d& L' |5 H4 x3 ?
// type flag to indicate the fact that this variant holds a BSTR. Place the 8 ?: T4 s' t4 `, Z0 M: |// BSTR into the variant structure. 1 x: a7 d( Q+ M. P! A3 v, O, j0 f6 M7 J; ` m7 L. }1 L
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' _$ G9 S. r% U" z" z
2 k7 B5 L/ j, H5 p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) S$ g8 c! _2 H
VariantInit(&requestVariant[0]); ( z8 Q6 C! z0 R, Z- N* |4 }+ q requestVariant[0].vt = VT_BSTR; 1 {8 c4 W0 u$ N requestVariant[0].bstrVal = itemStr; ) w) R; k0 u6 h" \# e & ?' M0 Z I; O7 X topicStr = SysAllocString((WCHAR *) L"system");& | i$ K2 W$ {6 A3 F8 q
VariantInit(&requestVariant[1]); & p# M. A0 w( n: l' O requestVariant[1].vt = VT_BSTR; 4 E0 s7 E' [1 K) D3 p/ ]) z( K" P! T* s requestVariant[1].bstrVal = topicStr;+ c4 x K+ h! b. c
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// Set the DISPPARAMS structure that holds the variant." g3 a8 m0 u: C5 e6 G5 F# C
# b. H; Y! J) E6 ~* U# P+ w
dp2.rgvarg = requestVariant;# `1 E6 ^; U% n# a3 O0 g
dp2.cArgs = 2;* i7 b4 Q( d: G) ]: L2 A
dp2.rgdispidNamedArgs = NULL; F' {# ~. d$ G( I
dp2.cNamedArgs = 0; $ o7 Y! d0 R% }: G8 W. _5 O ( q1 ^. w! K3 o) n9 Y6 s, p var.vt = VT_EMPTY; j0 u: q, F. g% M6 H: A1 S( {
. C7 B' v6 U+ {// Call IDispatch::Invoke() # z% V u" k+ q 3 R& A' {" T! S, N v1 k hr = m_pDisp->Invoke( & F) f% N; R1 I* \/ v" b# u requestID, ; `( C' [# o8 S& ?6 T. ^+ x IID_NULL, & E6 k/ e' k( q" ^" D0 C i ~ LOCALE_SYSTEM_DEFAULT, - T2 H8 n% I0 X, x, u DISPATCH_METHOD, ^. d: H+ N0 J &dp2, * h& _; m* D! Q &var, 2 V0 Y, l1 i; J7 @! ~ &ei, 1 f9 i, w, M6 ~8 D' a6 V* ^ &uiErr); ( x4 h4 p$ \; o9 ?! `' p. i- p# m6 ^6 q8 |+ Q; U* C2 G# E% A4 J
SysFreeString(topicStr); 7 u. U% }3 [: a) t% m SysFreeString(itemStr);% E1 s3 D( C" S+ A. _# p. Q
请问该程序是获得extend里面的哪个值? ( B. F' u7 w0 L- w; t3 A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????