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:% O/ U o5 K3 p. }' o
Name = (WCHAR *) L"Poke";2 Q9 Y1 p/ E! ]/ N
: I; c* l8 g' o+ k" a hr = m_pDisp->GetIDsOfNames ( o, n* o) K+ |$ @. X
IID_NULL, // reserved + }! G: }6 L0 _6 e2 M) a6 w &Name, // Array of names to get IDs for8 g# f2 C+ |! s# r( W
1, // # of names in the array $ G; x/ {# ? M& h LOCALE_SYSTEM_DEFAULT, // System locale# b1 \" S) |1 y! v6 @+ r3 |/ N
&pokeID); // Array of IDs to fill on output 2 ]2 @* Z) l3 }$ D8 L+ ^4 D- h( B . w+ _, m, H* b$ B7 K3 f if (hr)9 X& j0 m, D6 w; X1 e
{ 3 p1 l( A7 X0 y" x2 `5 Z MessageBox ("Get Poke Unsuccessful"); + u2 q! K l q return; 4 W( Y/ q1 o* W v7 u } % T/ P/ A3 O5 A% Y; _* R3 @2 Z% x9 s0 f7 Q3 s
/**************************传递数据给extend**************************************/ m0 A# R5 J, O9 o/ B! N% m Q+ z3 s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 h; d0 D& a& ~6 U' O- h4 ^; B
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valueStr = SysAllocString((WCHAR *) L"1232");. i A" L1 g# s# E
VariantInit(&pokeVariant[0]); : X4 L4 D& B# v. g" q2 D4 P8 L pokeVariant[0].vt = VT_BSTR; 0 @+ l9 y; ^8 v6 k4 {* p pokeVariant[0].bstrVal = valueStr; 0 ?0 s3 `3 p) r$ m j1 O. x7 k6 l | B, p
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) z- i1 [$ @3 G% H" l1 Z" ?
VariantInit(&pokeVariant[1]); 2 X4 |+ l/ m2 H+ I, q; J
pokeVariant[1].vt = VT_BSTR;0 c& ~4 |0 Q. H" K8 @6 l5 I
pokeVariant[1].bstrVal = itemStr;; l* B* Q {6 i. v0 o4 ?
6 j H# g; G0 d- C0 b; O7 R topicStr = SysAllocString((WCHAR *) L"system"); % e) e! k7 J( i9 s, r% Y3 u1 B7 d) I VariantInit(&pokeVariant[2]); 8 |: A9 ~9 W% K4 l
pokeVariant[2].vt = VT_BSTR;3 F' i4 d- d o. V) I4 V P! k
pokeVariant[2].bstrVal = topicStr; 6 g Q* }6 G+ e5 \0 `& R( a4 M. ~; c4 d1 t$ @! m
// Set the DISPPARAMS structure that holds the variant. . Q# Y" E9 U" p/ l! e, {- n G7 T" e+ I! [* }& x2 o
dp.rgvarg = pokeVariant;4 B# B- V" f- G6 m G1 [
dp.cArgs = 3;" [' j% y& t, G
dp.rgdispidNamedArgs = NULL; ' t* r* C% a V! D4 h* ~ dp.cNamedArgs = 0;7 {/ v$ L( b: ` {, B/ k
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// Call IDispatch::Invoke()4 R& q+ S2 u4 }! e( a
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hr = m_pDisp->Invoke( % k" g' @+ m/ l; i2 L, m pokeID, w T+ S/ I0 W# \0 @+ F IID_NULL," S! V$ A5 v# G4 X
LOCALE_SYSTEM_DEFAULT, 7 }# y, c' D9 N1 s DISPATCH_METHOD, 3 Y& q( x/ t6 ~4 T. F6 I- r &dp, ( ?0 `5 ^2 _2 B. b; R NULL, 8 h4 _' L0 z, Y v7 W; N &ei,/ \! d6 X: ?% y
&uiErr); 9 w" j( ?, n7 _. p& p3 s6 K" q, o' q
SysFreeString(topicStr); ; A+ i* C; \0 n( @0 _ SysFreeString(itemStr);9 I& V# F) E4 c7 _. f v3 O; y
SysFreeString(valueStr);9 z' h( Q8 T+ h2 B1 k- r, j
! @$ r; z6 c- Q! t/ `( D2 ^+ U8 @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???' B+ I8 F! V7 f5 O6 d
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????) k5 h7 h1 R: f$ \& ], b1 I4 U5 X# |
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2.这是request的程序 6 u( }/ h6 ]$ p; A' b// Request a value from Extend - v5 x7 K/ F; x2 g//& A5 e; d+ Z C% u- s l
// Initialize the variant that will hold the BSTR. Set the variant's ( [+ q5 l5 ]) z+ l+ Y9 T8 e& f// type flag to indicate the fact that this variant holds a BSTR. Place the 8 J" G3 o- K [( t// BSTR into the variant structure. 3 \' U6 s4 K. G! B! {+ p: z0 B: `6 h+ M* I7 R; s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- |- @, `2 t; O8 Y* W6 u. W
! _1 i0 w9 l* k! w% H8 w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # _. h- N) n/ J) p7 v: I VariantInit(&requestVariant[0]); 8 h6 @" T* {3 w' | _
requestVariant[0].vt = VT_BSTR; 3 b; b% c% X7 P2 t' q, I requestVariant[0].bstrVal = itemStr;/ o3 C7 D$ T6 t& W6 `
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topicStr = SysAllocString((WCHAR *) L"system");: t1 |# O0 `, I" x2 D* |* J; j
VariantInit(&requestVariant[1]); 4 n% A& N! [+ U
requestVariant[1].vt = VT_BSTR;( g0 w3 ?- a! [) a y# w
requestVariant[1].bstrVal = topicStr; ) ~' A: d' x3 K# V . A' A6 q- ]0 d// Set the DISPPARAMS structure that holds the variant. % B* L: }$ F" L8 v8 k8 X$ Z8 W8 U+ `. |- b; I& \
dp2.rgvarg = requestVariant;3 h: G0 i- O) b9 {8 w8 G2 D* b$ m: n
dp2.cArgs = 2; / ^6 [5 {/ {. h, ~! I f5 j dp2.rgdispidNamedArgs = NULL;" P; c% ~4 P( Z4 C* _
dp2.cNamedArgs = 0; 7 o* `! J" Q+ o1 n+ b. J. B/ P3 s3 |+ y. C! |, V$ V, S; W
var.vt = VT_EMPTY;* o4 W5 q2 f6 }. N8 \7 [
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// Call IDispatch::Invoke()$ J5 x- ` L+ K W1 J6 F
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hr = m_pDisp->Invoke( 4 j( _$ \7 f! S! r5 o R4 o requestID,& C0 K' N' l2 V
IID_NULL,6 b5 p5 I' d# C& Z+ f7 \
LOCALE_SYSTEM_DEFAULT,0 S7 s: F Y2 h1 \: r8 e4 I; t
DISPATCH_METHOD, ' O; u3 H; n% [# S9 j2 | &dp2,+ }8 Z6 v- _, X3 m' {9 r3 h
&var, 3 `; N# Y9 M' R4 }+ { &ei,9 c: G+ w1 J/ F5 D! q3 [
&uiErr);# I- k- L- @! ?: r5 r
N. \0 f* E; J6 k SysFreeString(topicStr);0 n7 p$ k/ {6 j+ j! }
SysFreeString(itemStr); 2 ?. f. W7 o2 c# B9 ?) S9 y, b请问该程序是获得extend里面的哪个值? 5 M" e0 U6 b! y: t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????