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: 8 r, j' r: _" @2 T5 [4 I9 zName = (WCHAR *) L"Poke"; + C7 A6 a. K* i9 X1 b . u* o3 U4 U9 w8 {% G hr = m_pDisp->GetIDsOfNames ( 3 {; |! ^- a6 G2 \ P IID_NULL, // reserved! h/ E5 G4 n9 {8 X8 t3 e% z
&Name, // Array of names to get IDs for ( i) {- d2 v+ P( n) @3 i$ g3 z 1, // # of names in the array 0 `, p7 Q2 |+ ]% V, h7 x1 f LOCALE_SYSTEM_DEFAULT, // System locale 2 w# X1 x& a$ B K' k4 j &pokeID); // Array of IDs to fill on output" v5 o: p* N) ~1 O9 O: ^$ d2 @
- @% r m* g3 B. D4 i* F% d6 v) \ if (hr)3 ^ Z) Y; k7 J3 J* y) p
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MessageBox ("Get Poke Unsuccessful"); * A3 b1 X3 ?7 q4 n0 |/ F% P return;4 \9 W( d9 u) p7 ` x- A
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/**************************传递数据给extend**************************************/ 2 J: {2 u+ t3 P7 n7 G: Z$ x4 x pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 6 ^1 G! s/ i# J) K; Y ' G" A# ]8 g9 M; f8 g7 k' H valueStr = SysAllocString((WCHAR *) L"1232");, z' R D: u& @0 b) H6 f1 e
VariantInit(&pokeVariant[0]); & j5 w' F v1 i4 } pokeVariant[0].vt = VT_BSTR;4 p' i& a) s3 M6 E" R
pokeVariant[0].bstrVal = valueStr; ' |" n: \, N4 j4 M* \+ b. ~2 ]/ B! L+ h8 L
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" h% f5 Z' z2 y6 a0 B3 V. T
VariantInit(&pokeVariant[1]); " P' r9 W9 u0 Y0 s
pokeVariant[1].vt = VT_BSTR; ; m0 Z+ Q. N& D6 o5 [- X pokeVariant[1].bstrVal = itemStr;4 v# g: e0 p& O
" v5 u& s6 s- ~ B# P |' p topicStr = SysAllocString((WCHAR *) L"system"); ?# ^' S8 X( @1 K
VariantInit(&pokeVariant[2]); . ^& _1 n/ K- z6 R6 q- g
pokeVariant[2].vt = VT_BSTR;2 _; K9 S, Q, E! `8 q: f' x' g$ J6 b
pokeVariant[2].bstrVal = topicStr; 6 f* C: z. z% m0 i, ~ a' c% ?6 A' a- a% c
// Set the DISPPARAMS structure that holds the variant.% L. B) H( _/ n- A, H/ ?! Z( T" H3 }
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dp.rgvarg = pokeVariant; 0 C4 j& C S3 k# b: J dp.cArgs = 3;' x1 d: {- U8 i; C6 Y# ?
dp.rgdispidNamedArgs = NULL; - e& t5 K+ n: s3 Z# P7 R# y# `7 [6 S dp.cNamedArgs = 0;) g/ I3 L, B) T
2 J( m: h9 x* K) c7 G& n// Call IDispatch::Invoke() 9 T5 t- J% [" U5 c+ _+ ]+ P) _0 U* I* V& r1 v2 [- j
hr = m_pDisp->Invoke( `+ B7 T7 |& g3 U$ D2 m3 T# w8 y pokeID, , P+ J" C4 e+ N# ^ IID_NULL, + q! G/ A7 t. X9 ^8 M) k LOCALE_SYSTEM_DEFAULT, - \0 S- y% O6 B$ P: i% Z( v; h DISPATCH_METHOD, - b5 ^5 E, U7 C" m: }$ e &dp,; U6 R- j) s9 F2 z. F/ p/ r
NULL, & S3 L8 w8 h, T0 [2 u' C( D &ei,# J" S5 O2 Z/ L1 N* K
&uiErr); # D1 t1 T; h4 @/ U/ K1 |% p. q$ L9 t+ E
SysFreeString(topicStr);* `, v# t" C# c0 [/ I
SysFreeString(itemStr);4 e" Q1 J; k1 z4 X+ g
SysFreeString(valueStr); 5 t+ v) R8 C9 o6 e4 y, K' X3 k$ Y' F' {% a) F
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???& C1 A6 E& }. z1 h) _# T
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????0 u: V0 J% r: c( L2 A
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2.这是request的程序% F0 e8 {' Z" I$ r8 I7 x. w8 J M# H
// Request a value from Extend. v. S) v; H2 u- B9 |& a3 R' F
//' m6 h9 f0 g# }' y, ^% ^9 _$ K( J {
// Initialize the variant that will hold the BSTR. Set the variant's w; f" m. y7 s4 A// type flag to indicate the fact that this variant holds a BSTR. Place the - b/ N0 C1 G" }: I7 L! n J# }// BSTR into the variant structure. 3 y4 X% e3 W6 ~" O( d0 P6 o f5 F2 I+ J( u& W
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);: g6 F# M2 Z, H5 j9 k' c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, {$ V+ M$ m6 X- m( {
VariantInit(&requestVariant[0]); 5 N& A! S, [" H! J$ T' u9 x7 p- R
requestVariant[0].vt = VT_BSTR; / |* }0 W6 z1 |; n8 x) p: N requestVariant[0].bstrVal = itemStr;: Q+ t7 i8 x3 K. Z. G: I# h
0 d6 X5 v( V+ D; ] topicStr = SysAllocString((WCHAR *) L"system");! i. g8 y+ y; N/ y# O. t$ W1 E+ K8 I
VariantInit(&requestVariant[1]); ' h: @: T8 Q8 Q
requestVariant[1].vt = VT_BSTR; 3 u1 ^3 l8 B G# G& ` requestVariant[1].bstrVal = topicStr;1 m/ o. K: o) F1 O) ?
9 H( y* _# N% T s// Set the DISPPARAMS structure that holds the variant. & R/ s7 m/ `1 @( _* k1 j) @' f' z n' q2 n6 I- ]
dp2.rgvarg = requestVariant; : q z+ ]% L; h# A' P dp2.cArgs = 2;% c1 C7 } j j( J" h) k; Q! |& m" m2 E
dp2.rgdispidNamedArgs = NULL;, n7 _' [& F2 n9 D9 o b" `
dp2.cNamedArgs = 0;- y5 w3 k `4 Z! Q* J# G* g
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var.vt = VT_EMPTY; 7 C: L% t5 A, p! z% b6 f8 y; X; T e, r. z$ _+ i
// Call IDispatch::Invoke() 9 [5 V$ \6 P! ~' {9 K2 _8 [# h$ z 8 E! ]$ B! T4 s hr = m_pDisp->Invoke( 0 y9 B( W# s8 b1 M; t requestID,7 S/ `# R# r4 `7 ?" A- b9 j
IID_NULL,9 {1 l$ ~% a S/ I# ~
LOCALE_SYSTEM_DEFAULT,4 W4 E' R1 O- K+ J( `0 t! y
DISPATCH_METHOD,' t+ @) I4 c0 }( P5 ^1 |7 K5 t
&dp2, " a7 T5 j/ Z& b# A3 x &var,! k; ]% T+ y' y# U
&ei, $ _9 ^; M$ \* m0 m3 j, B &uiErr);7 s7 P" ^. u3 k9 W: G$ m
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SysFreeString(topicStr);2 S7 }1 a" b. ^. F
SysFreeString(itemStr); ' E6 @1 W! s2 K/ x/ t, U: A- E3 {请问该程序是获得extend里面的哪个值? 1 ?6 t: J8 x0 X4 u' I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????