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: 7 _; a$ K4 o! I3 J4 m. u2 NName = (WCHAR *) L"Poke"; & X/ v' ^2 b3 c5 s- {6 O 0 X3 l# {' q B5 z& {' ]: {
hr = m_pDisp->GetIDsOfNames ( * U2 O! I3 z( a" D& s7 Y! b IID_NULL, // reserved - _% v9 L# O4 O; Y6 d/ H g &Name, // Array of names to get IDs for9 G" G9 V# k) a' a; S& T
1, // # of names in the array 7 F+ g5 O5 j9 @2 b LOCALE_SYSTEM_DEFAULT, // System locale % z! K. X K0 B! r u( y; a2 e( R &pokeID); // Array of IDs to fill on output2 h3 c, |# Z2 i, g9 {
( Z2 R, i0 O; a4 g! F) ~ if (hr) & I, K2 q& C( i, u# ]. u {- t; q, a: N* K. P" g' o" z; \
MessageBox ("Get Poke Unsuccessful"); 4 h6 N- ]# U5 u; u return; ! U$ ^' p& A6 a- `4 g }9 @% J; R( L6 L( Z0 M: H' a# ^
+ B2 Y! v9 ~% _ k/**************************传递数据给extend**************************************/& I' i1 X# T' l7 C5 R8 s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * R8 S! s2 T& F/ S3 U3 v% z- Q3 q 2 s! z( ?9 z+ m5 @- ]9 Y
valueStr = SysAllocString((WCHAR *) L"1232");: [2 b* k" L# o; T1 \# k) `
VariantInit(&pokeVariant[0]); $ N6 F3 f0 V: [/ C/ E2 p( g pokeVariant[0].vt = VT_BSTR; 0 K2 W0 K6 A$ t5 A$ `1 N pokeVariant[0].bstrVal = valueStr; * ^" C- J. H5 S9 L7 \6 @9 V% N3 u% R0 E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); q. e _# I( L) c VariantInit(&pokeVariant[1]); . \' ^# C, S0 Z. \4 t/ c
pokeVariant[1].vt = VT_BSTR;1 L! |6 c3 f+ W8 P9 @* A1 y7 G
pokeVariant[1].bstrVal = itemStr; 6 z% r& n7 U! [& o3 Z; z0 G & h {0 x& }1 U+ H8 b topicStr = SysAllocString((WCHAR *) L"system");- s4 V- G, r+ u: k% E
VariantInit(&pokeVariant[2]); ' E) R: \0 X3 b. e, u5 L pokeVariant[2].vt = VT_BSTR;. U- D2 H' ^6 u9 Y/ c
pokeVariant[2].bstrVal = topicStr; ) N( _2 q/ v2 z- V. o1 ^9 N / c+ e$ K7 X/ t* M9 M7 M// Set the DISPPARAMS structure that holds the variant. $ O# C/ U5 F8 y+ N6 ^% D0 d5 Y & X$ y+ E% q" b0 _7 B# G: Q dp.rgvarg = pokeVariant;6 r; c# v2 U5 R. g, P8 e0 I$ k
dp.cArgs = 3; & ] x9 h7 \& \# ]+ N dp.rgdispidNamedArgs = NULL; s9 A. E s6 d) Y# o! w& {0 z
dp.cNamedArgs = 0; $ I) T* K% ?, R3 i7 G+ p1 a; C! E8 ~- V2 f' I2 Z
// Call IDispatch::Invoke() 6 E4 Y [# q( A" J- j! I& g( z m! g2 x6 h6 i; G, p
hr = m_pDisp->Invoke(; c% ]0 X* E0 ~5 r# }
pokeID, 3 p" R& v% {) j IID_NULL,& q/ y) u! H! A, M+ I, D0 r5 s
LOCALE_SYSTEM_DEFAULT,6 \$ r' u5 J/ E7 L6 S: i$ N
DISPATCH_METHOD,, w# e Q& l! K, K' k
&dp, L6 D: B+ `3 t& X0 ^( F. _% v
NULL, i# p/ S0 d9 O5 t1 e' r3 _ &ei,, H! J% v- S+ t- p" C' E
&uiErr); 5 _) G" ~. |/ ?$ ` U2 B1 B: l 9 Z1 a5 b/ X! w* ~; Y7 X) ]/ ] SysFreeString(topicStr);! i B+ ^- l2 }' r u; ^; Q3 u( U
SysFreeString(itemStr); - L2 a* v+ L8 t9 e( h SysFreeString(valueStr); 5 w9 R& D0 o/ {& Y * K; Y2 o$ w/ S) c2 n8 z- K, 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??? # Z+ Y# M7 f/ c2 E7 E l; Q' \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???? + T2 y3 E+ d" ?" y. T1 q( P+ R1 h( W i' A% P4 v
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2.这是request的程序, s' R6 t1 W( t; o/ S' t6 t9 E5 n
// Request a value from Extend) r9 I* R, V3 ~) n: W3 @* f
//. X$ s. O) g5 e( m9 @, w
// Initialize the variant that will hold the BSTR. Set the variant's * L B9 K( a/ Z e- D. Z% {9 V// type flag to indicate the fact that this variant holds a BSTR. Place the 7 B' i8 ~# o6 K8 F// BSTR into the variant structure. 5 V: ]" \/ c2 F0 j3 V) \- l2 G' d/ i+ c& P4 m
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# O9 N3 B: ]8 x, n) U+ s
8 ~8 ~5 p3 J& n/ t' q2 d' R6 P; z7 Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); f9 A m' n. j* }1 ?! ?' U VariantInit(&requestVariant[0]); 4 S7 e0 v$ N; f1 j- z1 p requestVariant[0].vt = VT_BSTR;/ c8 b [9 r; A& I- v- E9 E: [
requestVariant[0].bstrVal = itemStr; 3 g; } [; J0 d, O4 u8 y- I3 J4 B( C4 o- R
topicStr = SysAllocString((WCHAR *) L"system");2 ^; Q* }- s! E) x7 [
VariantInit(&requestVariant[1]); 2 W' J' K0 Z2 Q2 D4 V! N& v. t requestVariant[1].vt = VT_BSTR; f5 ?' g, e4 h
requestVariant[1].bstrVal = topicStr;( Y; w( X7 R; Y. m
v$ C6 }/ i! b# D' l- j* `( B
// Set the DISPPARAMS structure that holds the variant. 4 X9 D, I$ w/ g& \; w7 L: B; B# @% e+ Y/ |2 P8 V; g
dp2.rgvarg = requestVariant;2 ~) k# H: A+ K* W% o
dp2.cArgs = 2; 1 i1 D1 K: G; U% u dp2.rgdispidNamedArgs = NULL; . M6 ^+ { L! ?/ r: R! I3 _2 }, { dp2.cNamedArgs = 0; / r6 i2 s# g; E1 _( Q# ] 4 u" ~! J4 `, T" ~" ] var.vt = VT_EMPTY; 9 w' x2 M: k2 R! h8 x2 ^& c6 p, _/ M" r: T6 y
// Call IDispatch::Invoke() @. U& ^" q$ B - N3 Y y% Q" J6 w hr = m_pDisp->Invoke( ( l9 k/ G% o1 j requestID, + { q8 @1 s& A2 R% k IID_NULL, 0 V2 M. |+ Z3 z$ B# P( `- J5 N LOCALE_SYSTEM_DEFAULT,5 m9 {0 `& r* S5 h
DISPATCH_METHOD,4 v4 o) o1 @4 x
&dp2,+ w! v% V- ~/ }& q# A5 j
&var,8 t+ Y/ V5 @' \. J0 X: [
&ei, ?9 e e* x: [8 S( e T7 m
&uiErr);! g3 h" Q- \5 y# P3 o