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: 2 R1 I/ I. {2 |) _6 S6 a) ~Name = (WCHAR *) L"Poke";( L5 [9 t: W% U
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hr = m_pDisp->GetIDsOfNames (% y0 p5 d$ j6 Z
IID_NULL, // reserved 7 E# a& V# l2 P: D7 g8 ? &Name, // Array of names to get IDs for$ l4 N9 T5 I3 y1 @
1, // # of names in the array i0 g7 z4 k4 h) ^7 N4 R4 w8 u) N; c
LOCALE_SYSTEM_DEFAULT, // System locale0 N+ D5 ~+ P1 S6 L2 X Z0 W3 ?
&pokeID); // Array of IDs to fill on output % T/ E. e+ F7 m7 ^8 b $ m- l0 v2 L0 z
if (hr)$ p4 D. A7 X0 V8 X% r& l
{ # t. J4 I/ f$ t u4 A) z. S MessageBox ("Get Poke Unsuccessful");9 \ Y# f, E7 I( F7 D
return; . }* w# g8 o: W8 E9 g } 4 b7 b- M* }: d# q# O4 \! ~) a7 C- Y: S- [( X
/**************************传递数据给extend**************************************/7 n. }/ p; g' d. D& \
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; g0 O) q8 m; o* e 8 V5 _3 b8 [- J0 g1 F
valueStr = SysAllocString((WCHAR *) L"1232");6 z( p- B' L4 o" d
VariantInit(&pokeVariant[0]); : i( V# K* B; k% ^3 [* V6 T
pokeVariant[0].vt = VT_BSTR; . P9 O, r2 s6 b3 b8 W pokeVariant[0].bstrVal = valueStr; - O' F7 M. H; `- [9 y 1 l$ `: _0 `4 a" e& @* L3 @. j4 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 l7 l) \2 ?7 n( P
VariantInit(&pokeVariant[1]); ' B: \9 e! l8 P8 x9 z1 Z pokeVariant[1].vt = VT_BSTR;2 j- K, s8 ^+ ]" c% |
pokeVariant[1].bstrVal = itemStr;8 n! E" s% S6 e6 J) J, i) c
% Y K1 V+ m. A" }/ u$ k' C/ E topicStr = SysAllocString((WCHAR *) L"system"); ! k/ R, |( T9 E4 }7 n VariantInit(&pokeVariant[2]); * E) f) l2 F( Y% K2 Z b
pokeVariant[2].vt = VT_BSTR; , S( u$ u- E8 Y7 Z6 m! n pokeVariant[2].bstrVal = topicStr; + ]7 A0 h, T) H5 R! g" ]" ^) c: U/ \8 B
// Set the DISPPARAMS structure that holds the variant. ) z. _/ }2 _7 Q M4 e! O3 l' v * P6 g0 u7 p, _+ R; u dp.rgvarg = pokeVariant; 8 H y2 \% y1 ], \9 J3 I0 z# p' a4 { dp.cArgs = 3; ) u4 z- C8 Q( ?9 C dp.rgdispidNamedArgs = NULL; 3 O3 h7 e& T% t/ x: X dp.cNamedArgs = 0; $ p# m& Q& ?( D$ Z9 [; p* h$ V# @2 _8 B) x
// Call IDispatch::Invoke()- J$ a& Q9 p( \ u; Q! F
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hr = m_pDisp->Invoke(& _" N( S: f( Z5 e$ R
pokeID, 6 M' v8 D' `: P' \ IID_NULL, * j! x+ F& t, R6 w& D9 X LOCALE_SYSTEM_DEFAULT,- c" B }1 @# P2 ~1 G
DISPATCH_METHOD,, T9 Z& B7 H4 b4 {# C( u! Q
&dp,$ t' z% |4 T0 b( e' S- |
NULL,; S" X0 R/ ?1 w4 d+ @1 {
&ei,- {! J' t& O% E
&uiErr);8 h) b3 J5 w+ _7 C0 s4 Z
: k. a8 G1 w" q2 g: f SysFreeString(topicStr); 2 @" d) R- V2 _ SysFreeString(itemStr); % _; Y0 K2 ^; u SysFreeString(valueStr);9 Q* J2 N" B f( H' Q: p7 b
# d. n+ e5 M3 M. o+ H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???2 O; S" w( i1 J. V( u! v
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???? + q" ^. o5 G6 z- Z% Z4 m% t) Z- k; o K( i$ B
* M, t9 X6 K. c2.这是request的程序 ( `( y( d! q" u// Request a value from Extend# l$ R2 R" a; {* w
// % b& E1 k: d t6 ^/ ~// Initialize the variant that will hold the BSTR. Set the variant's2 b$ ?: ?! f. U: p
// type flag to indicate the fact that this variant holds a BSTR. Place the E+ i$ Q2 B5 k3 B// BSTR into the variant structure. 8 Z& N3 Q) d" L4 @, A- W1 Y8 c- Y b7 I( t5 e
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( K4 e0 k$ A# W w 2 v- c0 T* ~4 Z. D! r
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / U# w$ v( Z, n& o* R ?% t VariantInit(&requestVariant[0]); + a6 Y$ o) H4 @$ P r: W requestVariant[0].vt = VT_BSTR; 1 h u2 @+ F) m2 T requestVariant[0].bstrVal = itemStr;' x2 W% t7 l# f# u8 w2 @
) o; r O7 f) M1 M7 C9 E8 n( m topicStr = SysAllocString((WCHAR *) L"system");' L: Q f* r4 V! `( I! A" q1 h
VariantInit(&requestVariant[1]); 8 k7 k" V6 W- `8 V7 D0 b' U requestVariant[1].vt = VT_BSTR;" k7 o. t3 U/ a& \" J
requestVariant[1].bstrVal = topicStr; 0 t8 I" b; S% K5 a3 Y0 ?6 {. A; v! s' H
// Set the DISPPARAMS structure that holds the variant.1 J$ l8 J; [9 `/ m
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dp2.rgvarg = requestVariant;- v9 R5 r8 p, a8 z K
dp2.cArgs = 2;5 G$ Q, [+ v" R
dp2.rgdispidNamedArgs = NULL; 4 F& R+ t3 W0 n6 G% @ dp2.cNamedArgs = 0; 2 K* P! h+ i3 d6 _. I S- \9 N5 u! U4 B2 f2 e0 c7 E
var.vt = VT_EMPTY; 6 {7 Z8 H; V2 V# P9 e+ k' x- Y$ D0 [3 o / Q) k+ v. d, D/ U1 E# w% I! |// Call IDispatch::Invoke() p, l; ~+ u+ f3 O) W8 \
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hr = m_pDisp->Invoke( % r( L# B% ], u! u( Q requestID, 4 H; n* S+ z2 Y% T5 o3 q IID_NULL,9 R+ I/ ?! A) _- r, q
LOCALE_SYSTEM_DEFAULT, ( u+ \5 f( P* ?: F DISPATCH_METHOD, . ? O- O5 l' D& g4 } &dp2,# i! P- A) B, e% I& b: X8 j/ r
&var, ! Z+ {# W. w5 g; s" F5 @ &ei,0 B* }5 c+ {8 C( b1 {3 V
&uiErr); ; \/ w B; f. D z. V' p6 c1 F6 G
SysFreeString(topicStr); 4 W" c2 I1 @/ H SysFreeString(itemStr);) k/ v, k/ \4 u h4 t4 R" ~5 g
请问该程序是获得extend里面的哪个值? - b2 Z, U: t' S4 |) c7 u+ X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????