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 v% X* w3 |; S& n. d! I
Name = (WCHAR *) L"Poke";' o* l% v& C1 M
$ c5 {8 O: d( o+ ], B, ^) [ hr = m_pDisp->GetIDsOfNames ( ' Z0 g5 K; d/ F; p IID_NULL, // reserved . L( t" y* T/ z) z7 ^2 p; @1 M6 h &Name, // Array of names to get IDs for9 S" b" o: ]8 W, `
1, // # of names in the array1 H8 U, V% O8 p2 Q' { R
LOCALE_SYSTEM_DEFAULT, // System locale / v5 ^: T3 W/ z+ S7 o S: b7 l &pokeID); // Array of IDs to fill on output : b: G8 |" H0 H& W ; I6 R: |# A- L& Z) B if (hr) 1 `( \) k6 H+ K& J+ W6 } { # {! F3 t6 A( r% J MessageBox ("Get Poke Unsuccessful"); # @) S+ H% ? H* }! r, S$ s7 u return;' h# ^& B7 O' R1 c
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/**************************传递数据给extend**************************************/ . a- a f5 N' l5 ]- m& H9 g/ u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) Q8 g4 _/ r9 B 6 W# J9 d) ~3 D; D0 O% y: Z valueStr = SysAllocString((WCHAR *) L"1232");- |9 u7 `1 n5 P2 a9 t) v4 n
VariantInit(&pokeVariant[0]); " h: w1 Q8 Z% D/ v$ a
pokeVariant[0].vt = VT_BSTR; $ o2 r6 o$ i. N1 Q, j; J! q0 o pokeVariant[0].bstrVal = valueStr;0 @$ H. d2 @7 G
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; E6 T) B) O) m3 Y5 C) ` VariantInit(&pokeVariant[1]); 4 p8 P/ |0 Q+ Z" ~! k) ^' ^, l* U
pokeVariant[1].vt = VT_BSTR;1 F6 ^& v9 v$ N0 d0 p9 ?" j
pokeVariant[1].bstrVal = itemStr; 0 J+ E! H% c7 d0 d' F0 q' N - h! Y- B8 @( L topicStr = SysAllocString((WCHAR *) L"system");* @- O+ G7 @7 k( C
VariantInit(&pokeVariant[2]); $ Y3 I# }4 P; n5 E
pokeVariant[2].vt = VT_BSTR; ' H) [# @3 \' O. ?* F3 b0 {8 E% p8 i pokeVariant[2].bstrVal = topicStr; 6 T* V# L: j( T% j1 z! d! O( z) I7 |) F; p5 {8 _ Y
// Set the DISPPARAMS structure that holds the variant. - x# \. {6 @6 j9 V& c1 b# w1 r8 [3 b' n9 I- z8 O9 q3 _
dp.rgvarg = pokeVariant;9 Z) q b X; y' j- x% j* U
dp.cArgs = 3; ( m% n2 ?7 g9 L dp.rgdispidNamedArgs = NULL;- F% w+ M5 `! N9 w+ R* ?
dp.cNamedArgs = 0; & B+ v, Q- W% T; f6 f7 a* W1 ~9 r# F0 R
// Call IDispatch::Invoke() / m% D- b3 a$ P$ O3 h/ K4 |3 v: a1 y. m! P0 w0 [% x A
hr = m_pDisp->Invoke( / E5 I V" {/ q0 Z pokeID,# u4 N: } A8 j3 e
IID_NULL,$ ?( B3 L5 a: h$ g6 ?
LOCALE_SYSTEM_DEFAULT,/ G8 @- v3 c- ~
DISPATCH_METHOD, ' ^0 k2 d2 c$ q/ x &dp, , W: O# V0 z: k8 z5 w. z5 A NULL,4 ~, J, w/ b# n1 T! [
&ei, {5 K, ]' s# j
&uiErr);- \/ ~4 W5 D! `- z
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SysFreeString(topicStr);/ ~% [0 R, p* Y0 L* l% s
SysFreeString(itemStr);3 O5 r: t/ l+ n& z* N
SysFreeString(valueStr);! k4 Z7 @. q- f! q0 b3 m s0 A8 r" u
4 h6 R$ Z/ ~! P9 f1 _" E1 ^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??? " c$ ~) p# h b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????/ R% x8 ~& a2 R8 _& a( q2 l" e5 |
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2.这是request的程序 8 n2 l" L4 `+ T! T9 F// Request a value from Extend . c) M. F# P }+ Q//' ^7 T5 |) O; T; M* X) H* Y; H
// Initialize the variant that will hold the BSTR. Set the variant's- h% P, p* ]+ ?. X* l' `
// type flag to indicate the fact that this variant holds a BSTR. Place the5 X [* N9 f: E+ g& x w. g
// BSTR into the variant structure. - M, ^3 Z9 h( c( y( `7 a( c" c5 O9 z4 |+ e5 Z! ?5 u
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : I' Z6 A# t& s6 l# b + \" w/ B) u; V6 w' J3 S' E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 s& h$ @( e2 }$ s* N+ y- f VariantInit(&requestVariant[0]); 8 e8 q. W9 i# V8 M2 }8 B. `, w requestVariant[0].vt = VT_BSTR; 1 n8 c& T/ g$ e j1 ~ requestVariant[0].bstrVal = itemStr; ' _$ Z* V2 o5 i6 @& O0 j5 W! x, s$ c) k7 q: M% d" |9 D
topicStr = SysAllocString((WCHAR *) L"system");+ G; A: {3 `; T! M# `/ I9 s+ C
VariantInit(&requestVariant[1]); ) f% i% Y; x9 @* {! Q
requestVariant[1].vt = VT_BSTR;& i6 a3 ^' j( M4 w) y' ^; c3 x2 a# E
requestVariant[1].bstrVal = topicStr; 3 X! I) U% e& i8 F, o0 K* B1 J 9 j+ G( R4 E9 b# M. `% M// Set the DISPPARAMS structure that holds the variant. 5 X: J% t" r: L( k% k4 z. X) R% a% _! K4 ]; T' A4 v
dp2.rgvarg = requestVariant;7 P6 t& {" ?1 ~, j
dp2.cArgs = 2; / W; @* o' f, E4 i4 l" x( B! G dp2.rgdispidNamedArgs = NULL; * A# r1 i% X5 b/ z1 R4 }1 L" [ dp2.cNamedArgs = 0; ) @+ F8 F9 j% P/ `6 M) H8 b. E$ t" Y( Y+ l$ _# _8 g
var.vt = VT_EMPTY;4 V8 c/ e( B3 L G1 a( Q
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// Call IDispatch::Invoke()6 }# Q A5 N/ P) E
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hr = m_pDisp->Invoke(6 D; q4 U. S9 }1 w O! P& J
requestID,7 ]8 ^; X! \% j
IID_NULL,9 S- L5 v* |* c4 \ v8 D. x( [7 X' V
LOCALE_SYSTEM_DEFAULT,' y& j/ R. m! T% s% G# X% }
DISPATCH_METHOD, 0 j) G) S3 N% ?( l &dp2,; Y6 \/ |5 i0 i* E. t" K& D: e
&var, ' r% x. I( i c$ c' i ` &ei, 8 D" a X6 X, D. Q9 h$ I$ p l &uiErr); ' H7 G7 z: V: a; g ! M2 Y; ~% X' Z6 c+ T1 W, F SysFreeString(topicStr); * @4 v% }- f& h2 Y& S1 h0 m SysFreeString(itemStr);3 }. ?& h5 ? C3 e. X% M, ^( R
请问该程序是获得extend里面的哪个值?! t* I F7 c, n2 ` @6 _$ 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????