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: 0 C+ `% ^# v5 u' {' \Name = (WCHAR *) L"Poke";1 y7 E) ?. Z9 W* ~ Q
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hr = m_pDisp->GetIDsOfNames (* n7 }+ P. h1 {" o. }
IID_NULL, // reserved ! y6 } ]/ I- k' p8 \- S% L &Name, // Array of names to get IDs for 5 |# ]! ?2 v6 S& L 1, // # of names in the array 6 H9 J, j0 j+ V LOCALE_SYSTEM_DEFAULT, // System locale : { l, p- c7 G' H &pokeID); // Array of IDs to fill on output 5 i( d: e# }4 c5 s + X% ?) e8 e, w3 C if (hr) d) {% ]5 p6 J0 i, y0 h5 N
{ 6 {7 u) @/ \- B MessageBox ("Get Poke Unsuccessful");& G6 Y( \& O- |1 j! r
return; F, L0 W! l1 O- R( q) t; ]* y
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* X4 D, v$ O) h0 ~. s6 c: Z8 `: { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 @6 z E4 ?% |9 I1 w9 e) W
VariantInit(&pokeVariant[1]); 2 X- j3 Z; u; n+ C2 \5 {1 k. `1 [
pokeVariant[1].vt = VT_BSTR; 1 o: l! g: v a D# L& O: q$ V pokeVariant[1].bstrVal = itemStr; 0 L0 a+ u* e( c: I# Y6 S k5 H4 t; h6 g& U
topicStr = SysAllocString((WCHAR *) L"system"); 0 X" W5 Z2 @8 p9 V VariantInit(&pokeVariant[2]); ( I5 N/ e6 ^7 l% r" j
pokeVariant[2].vt = VT_BSTR; # B0 @6 e6 e( P7 |; N# ]* W pokeVariant[2].bstrVal = topicStr; 4 P1 Y' m' S { F" b5 L+ G( M3 ^* q7 e; o; k' g9 Q
// Set the DISPPARAMS structure that holds the variant./ m, W7 E" @4 p! b9 y3 E
, z4 O; k' `% C- H/ t: r1 s6 I dp.rgvarg = pokeVariant;" Q& U8 e8 S) _1 B' {: _
dp.cArgs = 3; ) O% q+ P( A# ]" [/ b+ d dp.rgdispidNamedArgs = NULL;& u8 ~ F2 E3 {
dp.cNamedArgs = 0;; a$ A, ?; o6 l7 j6 n% K4 m
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// Call IDispatch::Invoke(). q, {" ]5 t% Y( x* z- U8 l2 _
; K: \! Q6 j* X e5 D1 W hr = m_pDisp->Invoke( 5 I8 x& E' @& P0 ~# H pokeID," T/ N9 O: e1 L( r5 ]+ K/ z
IID_NULL,) z+ \& n" a; }- @
LOCALE_SYSTEM_DEFAULT,1 ^6 R" R, [& i9 C5 L0 W) r/ a
DISPATCH_METHOD, 5 R7 Y. P4 C" j1 j' b2 C &dp,6 X% K3 N3 t& O9 ?# P3 [4 s( O
NULL,9 f. _. T* s K$ @2 a4 M4 X6 S
&ei, / ^/ V" u7 F) U &uiErr); 9 a* _! |4 D( w - B! R; V( o; q4 X! S! K( W# c) Y SysFreeString(topicStr); / d& Q/ p+ ]# o7 ^0 M SysFreeString(itemStr); . f* d+ c! \2 B7 W5 F: f# G SysFreeString(valueStr); : X+ M N( X2 I" J: L% y! Q/ }7 B) W% j% z# R
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???" G( }! D- }8 I3 n7 d% C
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, |# o) q7 f3 y# \/ n; U
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& l' b: e, z6 @0 F R2.这是request的程序5 P5 ^4 J L5 ~, {
// Request a value from Extend! y- Y. {, d+ L, N1 A) ?0 `
//7 j3 M' {0 [' d7 V
// Initialize the variant that will hold the BSTR. Set the variant's+ o3 D' a8 A) p% l; ^
// type flag to indicate the fact that this variant holds a BSTR. Place the% D6 s/ c- Y h8 t/ O1 \5 _$ |' r
// BSTR into the variant structure. ' X/ T" c! p# y, X J ! x6 V% x& O7 _& C) R4 O `, C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 u# ] ]; w4 }* E- R 9 h0 ]4 p' M! U: }6 m( X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) C3 w1 ?; f% @. S2 u: P, z7 A' f VariantInit(&requestVariant[0]); 0 v1 B# j! n5 f2 X requestVariant[0].vt = VT_BSTR;3 q; p. E" A& o+ I7 V& j$ {. ?( f8 @$ F7 q
requestVariant[0].bstrVal = itemStr;! C8 Q/ x( s+ F- d3 E! g
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topicStr = SysAllocString((WCHAR *) L"system");1 P; H& k9 y P3 R- f; m; b
VariantInit(&requestVariant[1]); ' \4 E- {. y6 v, Q h V% W n requestVariant[1].vt = VT_BSTR;6 k' W- A4 m- Z
requestVariant[1].bstrVal = topicStr;6 \- U. b# ~, R# a
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// Set the DISPPARAMS structure that holds the variant. 5 w c# Q+ Q# @6 Q" b# {6 i1 n% E) G4 U
dp2.rgvarg = requestVariant; $ k& x+ n( ~' ]; r0 t. _9 P c0 h( ^ dp2.cArgs = 2; , x$ q, d( D. c1 x$ K dp2.rgdispidNamedArgs = NULL;/ d; t+ _" l3 }0 P( R4 l) R9 D7 e
dp2.cNamedArgs = 0; Y* E9 Q% s. a& `5 g
# J& ]1 v' ?7 A3 V {& ] var.vt = VT_EMPTY;/ _1 ^" ?) w5 V: M, h
5 B. L+ T. x/ |2 I9 g6 C( s// Call IDispatch::Invoke(), x( T3 U5 L6 C
- w i1 m9 ^$ e8 O* S0 @ hr = m_pDisp->Invoke() w$ x6 U4 q* A! T! O
requestID, . l- h S( O+ {9 v0 p" w( s O IID_NULL, + O9 \% X+ A# R% n/ ] LOCALE_SYSTEM_DEFAULT,& i: i6 G" n5 N/ V" a
DISPATCH_METHOD, T9 h) B# `9 c. q! V
&dp2, / G" H* v& T$ g" v! K5 k: B# n &var, - Q1 M1 o" S) i# p& L | &ei,6 f8 I! H! W- T
&uiErr);" b7 ^- x7 I, b
- S' o6 Z |/ N SysFreeString(topicStr);# ~: S* h8 {1 J5 h
SysFreeString(itemStr);" X5 Z( z" T6 ?% W3 g% J0 u
请问该程序是获得extend里面的哪个值?& e0 k# B( A( _ a: A' D" Z
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????