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:7 X5 r( ^+ C) Y( v) ]6 b: `$ a" v4 c
Name = (WCHAR *) L"Poke";: H% R. @- W7 R4 g
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hr = m_pDisp->GetIDsOfNames ( b/ P5 Q R! a3 r7 I+ Y: b" R
IID_NULL, // reserved+ q9 d! i- j" t) b+ S
&Name, // Array of names to get IDs for* K! ^1 `6 T: k+ F7 r
1, // # of names in the array) V8 `- D( i' ~- l5 I( C
LOCALE_SYSTEM_DEFAULT, // System locale . f0 j% ~1 G7 G &pokeID); // Array of IDs to fill on output + T" p- i8 V! g7 i2 \7 H7 r * S. g0 |0 W3 n if (hr) & t' z, f5 y$ t# L H, N$ {9 u {; [; g! @) a) n2 Y
MessageBox ("Get Poke Unsuccessful"); , W8 {! |% b3 s. {' w return; + X2 h: t3 W7 o& X' j } 2 V& A: p& S* z5 {8 d, l M" I' u" F
/**************************传递数据给extend**************************************// Z" R8 Y f4 d2 r" ?9 i
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! D$ ?# _7 h- W) m8 E
. g5 x6 b- q2 N- @+ e4 x" v# q valueStr = SysAllocString((WCHAR *) L"1232");! {, t' _+ t6 Z+ T; Y, ~
VariantInit(&pokeVariant[0]); . [. r& S0 [: r
pokeVariant[0].vt = VT_BSTR;- W% u" w' S7 e/ {1 B2 E+ a
pokeVariant[0].bstrVal = valueStr; ) F) l% P8 l* n1 z 4 e; B. o: p3 T- D# u7 } itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ i/ @1 y( _6 P3 Y( b% \ VariantInit(&pokeVariant[1]); $ v7 [5 e; A3 c' I; R
pokeVariant[1].vt = VT_BSTR;$ [+ J# c3 r, F4 t' c _# @
pokeVariant[1].bstrVal = itemStr;' S, H) ~5 [- p7 p' ]$ }: n: x
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topicStr = SysAllocString((WCHAR *) L"system"); ! j7 s V1 T B+ u6 V$ F VariantInit(&pokeVariant[2]); " R) K, Z! c! b) W6 N1 L; K
pokeVariant[2].vt = VT_BSTR;; B" c7 D% C4 f: S" i1 _
pokeVariant[2].bstrVal = topicStr; 2 j+ C" `. ~0 r7 o! _, a- R+ r# ?% `% @
// Set the DISPPARAMS structure that holds the variant.8 u; d5 j2 B; [: B
9 Q1 @1 T8 K- H: b) [; r; l dp.rgvarg = pokeVariant; ) c- |0 Q& P. O1 A3 e dp.cArgs = 3; 3 E; f# }2 H0 d* ?- q% O7 H8 C" k dp.rgdispidNamedArgs = NULL;$ M* t' j' J( u
dp.cNamedArgs = 0;+ N" |# @5 Y5 u9 {
. j& B: {, d6 P- e" y// Call IDispatch::Invoke() ' P( D2 w/ s) m- Z m* y8 j- E! G( _) W, o4 R0 [
hr = m_pDisp->Invoke( % O8 F( O, r. y3 a/ K) _0 z3 u pokeID, 0 s9 U$ B' R; _* m% T0 i }: y, i IID_NULL,& g# Z2 `$ j# [ z+ ~* }( e
LOCALE_SYSTEM_DEFAULT,- R0 `+ p" G; v& b; r
DISPATCH_METHOD,( z" g! Y! }3 ~* G
&dp, # c) k6 M i1 V" u# b NULL,8 ]3 O# r: U6 P! `+ e. D2 g4 v+ d
&ei, . }' q$ S6 o% }+ d, \5 { &uiErr);* P2 L2 b4 t; V: ^1 T; T' b
; J( R5 c3 A! Y1 Q SysFreeString(topicStr); E4 Q, F) c$ t' R1 g
SysFreeString(itemStr);! i; A/ O7 V' D+ W$ D0 `/ j& n
SysFreeString(valueStr); ( y* z1 v) U% {5 c9 k- t : a1 b6 T2 Z! t% V$ A# z; C; U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???) }6 F9 q4 @9 r! K( h0 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????& @# x2 V, t5 S& K R5 K2 _4 c
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2.这是request的程序 O, z: q6 ]! A4 |- N
// Request a value from Extend 4 R; r) } v4 W9 }( s# `/ `( K9 \// & g( ?# L4 O+ @ z# v4 R// Initialize the variant that will hold the BSTR. Set the variant's K- A0 d' A& w, O9 R! A" T( J// type flag to indicate the fact that this variant holds a BSTR. Place the4 Y. r- d7 F( O! c6 J7 T# j- e8 s
// BSTR into the variant structure. . {; w3 k- g2 G1 r1 t/ ^1 O' r: X5 R6 N$ i) Q
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); h# s6 E+ n! u' v8 i5 [2 ]9 e( K
6 _( q. L2 r4 E' q* w" R: `5 y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * Q6 `# x( C, [, O9 x VariantInit(&requestVariant[0]); / |$ x" l$ X% z; k requestVariant[0].vt = VT_BSTR; : ^: \1 F) ]/ L. ~2 h @' S2 N5 w requestVariant[0].bstrVal = itemStr;1 ]* \# G$ o0 c4 S: s
' `; n0 r9 s( @7 b {3 G( w$ B6 u. E% ~ topicStr = SysAllocString((WCHAR *) L"system"); ( Q+ Z9 }- k5 {+ R: g- s- F VariantInit(&requestVariant[1]); n3 j2 |5 }& E8 M9 s, B# H7 |
requestVariant[1].vt = VT_BSTR; 4 x. E0 m* T4 q requestVariant[1].bstrVal = topicStr;) B$ n: P* E0 L7 ]! c' r
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// Set the DISPPARAMS structure that holds the variant.% R8 }, X8 a& O2 U7 e# W
* I% L+ J; n0 ?% E$ [3 s* k, h dp2.rgvarg = requestVariant; , J9 T% U3 {2 P3 l1 ?7 O7 s dp2.cArgs = 2; ( N: Q+ n6 W" J X# j5 C. j) m$ E7 T dp2.rgdispidNamedArgs = NULL; ; Q, v# C5 r" c5 Z7 B+ K$ Z; O) e dp2.cNamedArgs = 0;0 f* Q u+ E: u. i0 o; ^9 G
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var.vt = VT_EMPTY;+ e) h7 o7 U( u1 S
' u# D- d* [5 O3 c8 @3 U; U; ^// Call IDispatch::Invoke()+ B: M! b% [( g4 G7 G; `! X0 z, ~/ }
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hr = m_pDisp->Invoke( 0 e: p* U. n; f- {" z6 D requestID, + ?1 ^+ B3 @) I1 z& z IID_NULL,& N8 Z; j1 Q8 _' u6 U, w
LOCALE_SYSTEM_DEFAULT,, c) T- V4 J* |* \1 ]
DISPATCH_METHOD, 7 E. l( [; d% i4 S0 y* S2 K &dp2, , O L2 D3 u& s &var, ! H) k7 U' v! l, Q( m &ei,5 N6 T# l8 E+ J7 R
&uiErr); * c7 Z5 G8 k, m3 w d $ ?- [" q0 l9 o9 @* b; G SysFreeString(topicStr);6 C+ Z) C( ? q0 Z+ |1 @
SysFreeString(itemStr);8 |7 e1 @3 T+ O0 T6 g5 R U
请问该程序是获得extend里面的哪个值?( k8 i l: @& b2 Q5 {
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????