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:" o6 [8 k8 a" x4 z6 _& J
Name = (WCHAR *) L"Poke"; ! V, k9 i+ A- v' i6 V& D1 ^/ M3 P. O , o* h$ z; e3 ~/ ~/ z hr = m_pDisp->GetIDsOfNames (/ _, u+ f1 M4 G5 @( S9 ^
IID_NULL, // reserved% l. `4 ~- C i3 R/ o: b; o! _
&Name, // Array of names to get IDs for- Q4 v, L& j6 Y9 P( `7 S
1, // # of names in the array0 T: x, z# Y- B) L" K S
LOCALE_SYSTEM_DEFAULT, // System locale ( u. A, w- [5 Y/ t# e9 Y7 l' q# u &pokeID); // Array of IDs to fill on output 1 [% |$ r; z3 G2 r5 e5 d# j # e3 f* P5 T- r2 W if (hr) 0 y+ V8 s0 q7 e/ m' z: q { 3 ^6 \( K/ N& I MessageBox ("Get Poke Unsuccessful"); ) {) a1 V( j4 N) [- t; Y/ R5 J return; 5 [" y# A+ l, p% w3 Z! ^ ^4 ~1 x } 7 g: T' i& E( s0 E2 P& T 2 I# Z$ H% C1 V8 q5 g1 c7 N/**************************传递数据给extend**************************************/ ' s! l( M$ n# T: _2 R8 ? pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : i G" K1 A2 I ) [6 f9 \9 J, H7 v u valueStr = SysAllocString((WCHAR *) L"1232"); ; `" w2 b4 c# ~" Q" h VariantInit(&pokeVariant[0]); / C8 {3 f: y0 X8 J9 M% \( S- R
pokeVariant[0].vt = VT_BSTR;8 }8 ~% q% v/ H3 ~
pokeVariant[0].bstrVal = valueStr;+ e% v0 s; n( m q2 o( U% \
% ^# a) b# P/ T$ T( i5 s1 \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( j: O% `+ B4 ~5 h3 t9 z
VariantInit(&pokeVariant[1]); + ?' T! s2 q& O& V: [/ D6 S: E pokeVariant[1].vt = VT_BSTR;2 K. \, z" f5 Y/ R W% p- s: |
pokeVariant[1].bstrVal = itemStr; + w9 n" c- _9 {0 d: {; [ b) j7 i& ]9 ~ ?; t9 F5 K, k
topicStr = SysAllocString((WCHAR *) L"system"); - s; {) |# z: U4 e) S7 f: Z' V/ ? VariantInit(&pokeVariant[2]); ( A9 q% d0 v7 r; S# m pokeVariant[2].vt = VT_BSTR;; r* ?+ \- T' l0 n! |
pokeVariant[2].bstrVal = topicStr; 8 j! T& C. _7 S) k2 s) B7 ?( \' T4 D! M: K. p
// Set the DISPPARAMS structure that holds the variant.1 r9 Z1 Q6 Z. n! S5 W/ l
0 {8 {* Y7 ?+ R; P* U: v dp.rgvarg = pokeVariant; 6 W: X, M t4 j9 \/ v/ P8 D. n; ] dp.cArgs = 3; 1 P7 w L6 D- ~1 T% u+ p6 y dp.rgdispidNamedArgs = NULL;; L6 w/ \6 L3 O
dp.cNamedArgs = 0; 3 p; u: t" m9 p6 L1 Q- c* o4 G6 k1 F/ h) }; Z
// Call IDispatch::Invoke() . C7 X+ \. j+ N3 w& c4 h5 y- a % I. Z4 ]( }' z hr = m_pDisp->Invoke( + [+ j$ y1 T; B, w! @( U pokeID, 6 D. ^4 x9 |0 B) ]6 f+ z! k IID_NULL, 9 \8 K4 t4 q' C+ K8 { LOCALE_SYSTEM_DEFAULT, 8 B! `4 M3 d" `: ` DISPATCH_METHOD, ) _2 l2 Q+ ^8 D1 Y" a &dp, X. y, F8 T) k$ B0 J6 ^
NULL, 6 e Y Z G! L- L; ?2 ^& v &ei," M5 R! e. i8 f2 B
&uiErr); : }9 ]7 I3 o" A8 @7 [% L1 f, e0 K3 _1 C ]4 l* v" o2 a
SysFreeString(topicStr);- f3 |# p( c! w* M
SysFreeString(itemStr);! ?; s# Y- K% [2 H. S7 ~1 X
SysFreeString(valueStr); 1 i3 k/ G( @' `, }' H( T- o. P7 P1 L- y# V* I+ o4 J6 M _4 M
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??? % c7 ?' L0 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????8 c+ H( O/ P5 H* p% c, h& l
2 r9 b9 P* M9 }/ a) T1 ^
: _2 i! l3 W% ~( r' K* s+ K2.这是request的程序% r# F0 J% {* _
// Request a value from Extend. F( J- Y; k& s' Q4 X# ^
// I* G2 y. {$ |, B! u
// Initialize the variant that will hold the BSTR. Set the variant's7 w1 Q% D' G, ]" Q6 q& A' c
// type flag to indicate the fact that this variant holds a BSTR. Place the $ O8 N; ]4 i$ x; K0 T// BSTR into the variant structure. - q i2 {1 \4 ]+ t" U' G, [ ( N- h. Z N) O; V1 O: j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ a9 `3 y* p' h" l! l$ ?
/ M" k- u! ^ Y' q( J+ B! _( _. K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- c4 }+ w" l( {% Q. x
VariantInit(&requestVariant[0]); : R5 {$ F/ [& }# t6 n8 ~/ I& b
requestVariant[0].vt = VT_BSTR; 5 |/ Q( J: x' S. y V# ` requestVariant[0].bstrVal = itemStr; 4 m/ |, o+ ~6 I: A& j$ T 2 C7 j* g" n- u# `: ^7 ` topicStr = SysAllocString((WCHAR *) L"system"); 9 G4 Y& C0 B$ v5 C$ t k: ^' t; Q VariantInit(&requestVariant[1]); $ [8 K+ u, d/ a; E3 l W0 [% P
requestVariant[1].vt = VT_BSTR;4 f3 \( u( T/ k ^# C* m. Z6 M
requestVariant[1].bstrVal = topicStr; $ [2 Z* ?$ ?+ c( B4 S! J+ K9 H' q# \3 c4 w: o2 g
// Set the DISPPARAMS structure that holds the variant. " `$ B7 ^" H) I2 s2 l5 |2 c) ^& ? . x/ g" ]2 j- v2 K# N h dp2.rgvarg = requestVariant;$ N. Z# U$ Z8 ]2 f7 V7 k
dp2.cArgs = 2;3 G2 q+ ^* _+ }" F. n
dp2.rgdispidNamedArgs = NULL;4 ^1 _5 h5 s2 \- [9 U$ u0 i
dp2.cNamedArgs = 0;+ ~. U& y, }4 K2 ~* K z4 D
* t# _- J0 Y. B7 u: y9 J$ b
var.vt = VT_EMPTY; ; k$ b% S0 b2 q 9 f/ L& |0 z" b3 ^9 a8 G8 A$ v2 E- l// Call IDispatch::Invoke()3 \, U7 @6 |2 ?9 h3 t
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hr = m_pDisp->Invoke(: b5 h3 t5 Y+ w
requestID, 5 }4 O8 O0 X# A% o! y IID_NULL,5 v# y( G! S# D$ E! f
LOCALE_SYSTEM_DEFAULT, 8 ]' `8 m$ U( ]3 c DISPATCH_METHOD,% U& k) ?1 k! B2 V/ ]
&dp2,9 b1 U( v$ X; Y
&var,7 G' @* Z5 N, V. `2 H! s* v2 k
&ei,( p: {" J, B7 y) b8 V5 X7 ]
&uiErr);/ ~5 V0 l L8 a6 |) b) u
7 O# h8 q$ g+ ^6 `9 J4 Z SysFreeString(topicStr);2 [2 v7 v- m: ? p. h
SysFreeString(itemStr); 0 @! S: y; h3 k3 r' ~& r请问该程序是获得extend里面的哪个值?' H4 |: |3 \$ k- I1 @4 v6 C2 b3 a
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????