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:! C9 k. {' J L- M& y: o
Name = (WCHAR *) L"Poke";+ @, q& X3 K# _! Y2 w! v
( v2 T5 Y" X) \" I* i hr = m_pDisp->GetIDsOfNames ( * P6 O/ y% I8 W7 c+ m4 T IID_NULL, // reserved $ a2 @1 Q* ?9 l' z &Name, // Array of names to get IDs for. F+ W: B0 F2 j- x) X
1, // # of names in the array # s4 z5 M4 r9 Y, t LOCALE_SYSTEM_DEFAULT, // System locale' v( Q6 w7 `! z( y
&pokeID); // Array of IDs to fill on output, K8 J! w) Z" o) z
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if (hr) 4 u% }4 [+ c! ^; i6 }& X { + C# o8 |8 m" c7 { MessageBox ("Get Poke Unsuccessful");2 Y7 B( _% U3 }3 {. v N3 X: H
return; % `3 Z. N" | o7 n2 M2 J, f }8 r$ p' G }& `$ c& ` s5 {
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/**************************传递数据给extend**************************************/ : C+ N5 \2 |( ~, n, c1 R# V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 @5 S) w) N R7 s, o X * q7 t" z; P- f$ g1 o+ t
valueStr = SysAllocString((WCHAR *) L"1232");# X$ X( V ]/ p4 C$ A! K. v
VariantInit(&pokeVariant[0]); 2 K3 I" A y+ x" {+ o' `9 j pokeVariant[0].vt = VT_BSTR;3 M8 C }& g. h# r) X7 m* H% m5 ~
pokeVariant[0].bstrVal = valueStr;2 d& T# E; l, W- ~& O
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# o8 A: q9 v3 P, i2 u1 }
VariantInit(&pokeVariant[1]); ( j- X& f! A! A P& {% F pokeVariant[1].vt = VT_BSTR;) C" g3 k8 ^0 N7 J/ f) u. L& t: E
pokeVariant[1].bstrVal = itemStr;& n* t+ m. T, y0 y; V. v) @+ b* }1 \
6 B- @ d2 D1 b& f6 x topicStr = SysAllocString((WCHAR *) L"system"); 9 k8 w! \7 K( m5 Y- y VariantInit(&pokeVariant[2]); $ @- T. Q; E! X1 \9 @" y, |
pokeVariant[2].vt = VT_BSTR;, g; j' J4 r3 M: I; W% ^ C
pokeVariant[2].bstrVal = topicStr;; C- l& P; I8 W6 I
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// Set the DISPPARAMS structure that holds the variant.1 ~' a6 Y8 b! P$ u) O! w. t) J. \
. W" A+ t! z4 Q4 O$ | dp.rgvarg = pokeVariant;/ ~9 i E$ O" ^
dp.cArgs = 3; . X' ]9 b5 L0 ^7 m- K; X# v: n dp.rgdispidNamedArgs = NULL;8 R$ T" e5 M6 m/ Z
dp.cNamedArgs = 0; 9 m# @ O0 w$ q& p' J $ \: Y) G6 l" k6 k7 A// Call IDispatch::Invoke()! p7 w& W% _8 V
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hr = m_pDisp->Invoke(! M& ]1 u, e. O* d
pokeID, 0 R0 s' M2 X! N" b, _ IID_NULL,( J9 j4 s* z% Q8 E* e y
LOCALE_SYSTEM_DEFAULT,5 L: V; O- Z2 O( E! G' y
DISPATCH_METHOD, - X8 x) d) Y) Z" V9 c: G5 Q0 z &dp,1 z' |6 Z1 `; e8 H1 m
NULL, ' o- Y5 D% j: C &ei,9 h) B8 u& E1 ~% o% k8 U
&uiErr); 2 w2 C) ?; N' i: c N$ C0 m# s; n/ M" |1 F
SysFreeString(topicStr);. L7 d2 n4 b# Q( A; ^! U, N! @
SysFreeString(itemStr);8 N% ?6 ~0 j. g- w1 c
SysFreeString(valueStr);* V; ~) }0 h/ O$ {1 T/ x2 e% Y
( f9 h/ H! |, M) i7 F Z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??? - f2 @) N) Y' R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???? & O) e! c# }) g H0 A 4 \- D* c: ^ F. W' W ) x: N& Q+ e$ u1 |% s2.这是request的程序 2 |0 |/ J0 ?# z. e( ~: i// Request a value from Extend " d, v3 y" K) T( p// 4 f5 d0 `/ n3 e// Initialize the variant that will hold the BSTR. Set the variant's: q: I9 a: u+ y1 d' Z" ^; P
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 K# V" Q- [5 ~ L1 m1 @7 s8 i6 B// BSTR into the variant structure.- Y% i# H6 V: a3 ?! D; K. H4 Q
! G5 k4 L' q7 m, U5 h0 @. e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! [' z9 U' u# ]4 ^) H: ~5 M , r% S7 Q, |# u0 Q1 z: p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! c8 P- l9 Z, M4 d3 S- F VariantInit(&requestVariant[0]); * f; c8 f- i: N' e" P- K6 c
requestVariant[0].vt = VT_BSTR;1 h2 y3 F; f2 a% z) I& Z$ y
requestVariant[0].bstrVal = itemStr; ! J% X) L. s4 H7 b" I8 S5 N& J; ~2 a) t! q7 i# Z O8 A/ f8 ?/ l% t
topicStr = SysAllocString((WCHAR *) L"system");1 {# z: E4 B4 r8 J* Z1 X
VariantInit(&requestVariant[1]); / ?- _6 o( A- Z7 U requestVariant[1].vt = VT_BSTR;1 c5 O5 B. H n" S C
requestVariant[1].bstrVal = topicStr;, w2 Q. N7 w) V0 g9 u8 I
; C* p1 G6 L% v! S+ b( j// Set the DISPPARAMS structure that holds the variant.+ V- _; F* G8 Q k+ @% g
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dp2.rgvarg = requestVariant; 4 |% n, h" I$ i. A: A: d6 i2 W5 P dp2.cArgs = 2; # t) r1 E! C; d) }3 _7 \: h' t" s dp2.rgdispidNamedArgs = NULL; 1 a- e% v" a+ s7 g8 Q dp2.cNamedArgs = 0;5 o6 v6 h8 r& R
% c# v4 D% ?2 I% m; [ var.vt = VT_EMPTY; 6 m. S- z# @, P X8 z# Y" A1 G# ^. K" G3 d3 s
// Call IDispatch::Invoke() 9 T' \, E4 d. i, j/ v( k+ h " T- `$ p+ j( X$ n- n8 v2 @( ^ hr = m_pDisp->Invoke( + k3 T, H8 f9 ]# X! I3 e requestID,9 g) Z& F, Y% `- ~$ f9 \' l
IID_NULL,9 j& N$ D, g1 W$ T8 t, H6 g
LOCALE_SYSTEM_DEFAULT, 2 { _2 F+ h; C6 m, | DISPATCH_METHOD, + q) O2 p9 B. p( @! l# I &dp2,& ^- [3 T6 C) Z9 j
&var, 1 ^) i3 [' ^8 k: M! |0 S9 j1 H &ei,' ^+ w+ b7 W9 ]+ U
&uiErr);" \, j, s8 t9 j( z1 w
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SysFreeString(topicStr); ; C7 S$ T V+ l( c SysFreeString(itemStr);3 s7 d1 K) B n
请问该程序是获得extend里面的哪个值? * p( \3 ?2 ~9 X# s9 N+ W' B: D2 v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????