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:3 M( \/ e% I, I8 q& J
Name = (WCHAR *) L"Poke"; ) U$ M& M5 O9 n+ g+ X S " |- U# u/ M) r. T+ e- M; W, X/ L hr = m_pDisp->GetIDsOfNames ( 1 l9 m7 q" A3 W9 i* k1 y/ @ IID_NULL, // reserved % f$ o: @# m$ e &Name, // Array of names to get IDs for4 H2 K7 d$ I/ Q* L! g" `4 p- D
1, // # of names in the array2 ]+ V$ [) S% [( P7 F6 y
LOCALE_SYSTEM_DEFAULT, // System locale * \* J H& e* X: ^8 T0 | &pokeID); // Array of IDs to fill on output - E3 X& B; N, M6 w 0 U9 R) A' V9 j# c1 f1 `+ `
if (hr): t) v2 W% _4 O( M
{ ( l' F4 V- n4 f2 R MessageBox ("Get Poke Unsuccessful"); , I: U* P" K+ g$ n return; # ]7 C- I2 N: N }% X; d! z# G( f/ m
* B* r0 S9 Z- ?# Y/**************************传递数据给extend**************************************/ 7 N1 B. t4 Z: A1 @. d pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 5 b) h3 J6 c" t 9 E1 P' x/ ~6 } w& D
valueStr = SysAllocString((WCHAR *) L"1232");+ Q ^; u2 m8 h# V
VariantInit(&pokeVariant[0]); $ {1 c2 r5 b2 `2 E! o pokeVariant[0].vt = VT_BSTR;+ ^" c- r' t, W% a8 u
pokeVariant[0].bstrVal = valueStr; % J* L1 d7 C5 V* r2 Q5 f* i$ r2 j( V. z) D
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 |3 o* u; G9 E- N `( s7 U VariantInit(&pokeVariant[1]); 5 c+ {- [: k5 H5 s( ]: F. \& s pokeVariant[1].vt = VT_BSTR; # ?' Y: M$ D* P9 M pokeVariant[1].bstrVal = itemStr; # m& t# B4 `' {# e2 @' y7 k ( W8 `/ \! D: D topicStr = SysAllocString((WCHAR *) L"system"); . i* ?) R2 c/ b- ?; A4 U, M$ r VariantInit(&pokeVariant[2]); * l: ^6 c- Z9 u: M8 ^( l
pokeVariant[2].vt = VT_BSTR; # E1 Z+ N' E" e/ r: K: I pokeVariant[2].bstrVal = topicStr; y2 W. ]& t8 z2 b' a9 F6 F ! t8 U/ q. V) F" `3 q* V3 J// Set the DISPPARAMS structure that holds the variant.# z0 M; b9 o3 B( _/ O9 {' v% F
; Q! ^0 ^; m3 y* V" E: z9 t- ? dp.rgvarg = pokeVariant; 1 `! B# g# |$ w/ b- [0 K4 l. l2 h dp.cArgs = 3; 7 c$ ]. q" K& [5 P dp.rgdispidNamedArgs = NULL; - b; x! C2 {' G G2 J0 H: Y dp.cNamedArgs = 0;1 h* |- `7 _( X
) O6 G1 W" ?+ Y" C) f" z4 u// Call IDispatch::Invoke() % l% r" W1 v \. b : q6 {9 a7 z1 b4 ]* u' Y6 } hr = m_pDisp->Invoke( ) e7 u, Y: ]$ J# l pokeID, - N: v1 Q% @* |. P IID_NULL, . ^4 }$ z: R; K4 D, m3 T, b LOCALE_SYSTEM_DEFAULT,4 H$ u9 j8 b9 Q) |' ~, E" Z. C
DISPATCH_METHOD,7 G8 h8 m& B6 c+ j8 @
&dp,3 h b* n4 J5 L
NULL, 9 z' p( m0 [$ J) Z4 B &ei, ) m" @, m$ O& d' {6 G( \: v &uiErr); . \3 r- q4 P! {6 D8 I) z& E) ]6 o6 W$ R7 B& R& i ] `
SysFreeString(topicStr); , r' r- {- Y1 E! q* U SysFreeString(itemStr);! f G/ W5 Q; ] ]+ u+ L
SysFreeString(valueStr);9 r- Z( _$ e$ R1 P0 Q
: X) O8 n/ J/ e j9 Q0 E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???; J M: }- \" \1 u* m
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???? ' c! V/ c2 \' I1 c" b ( q4 @% p9 B2 ?: t3 D2 h/ m6 I$ X+ v: Z3 y
2.这是request的程序- [0 R7 w( U* O
// Request a value from Extend% V5 G4 p" h) K
//: [1 I7 E( k) U6 D
// Initialize the variant that will hold the BSTR. Set the variant's ) }; w. W) R2 `. [! w4 n// type flag to indicate the fact that this variant holds a BSTR. Place the # E; n S' K/ r8 `8 _) b. R( D// BSTR into the variant structure.+ A, C5 h) P; D, |( i
) w( Q2 E* I' O- k# Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 r5 v* V6 @+ Y
2 i7 r, l+ _( U! f( p5 C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 h) g, C! H9 j# C' w VariantInit(&requestVariant[0]); + D. z9 T6 O, M! ^' ] requestVariant[0].vt = VT_BSTR; : y6 C' u, K1 L+ K2 y requestVariant[0].bstrVal = itemStr;. q$ H* n& n5 n6 Q$ F
; W, c) s+ G4 h
topicStr = SysAllocString((WCHAR *) L"system");' D: t+ z# X1 E
VariantInit(&requestVariant[1]); 8 R* x1 W* ?4 K6 _7 Y: m+ |# h) }- {6 L requestVariant[1].vt = VT_BSTR;* N* G! q7 @# [) T3 W% ~ x+ h
requestVariant[1].bstrVal = topicStr;2 |( d+ F/ t5 t4 c9 Q' c8 c
0 v4 s9 Y! g4 w0 ~/ d# F9 o0 g' A// Set the DISPPARAMS structure that holds the variant. , D" A& c ~6 D; p" q; T . i( F' G- K" q7 K% h5 } dp2.rgvarg = requestVariant;6 R4 a9 y+ j! x5 @% r
dp2.cArgs = 2;3 _( W [9 M) K, t& Y3 T
dp2.rgdispidNamedArgs = NULL;( N( b# r% x- f
dp2.cNamedArgs = 0; ; E$ Y* K: |/ k3 w* m: A4 ^' A6 C# i4 d6 G6 \3 Z
var.vt = VT_EMPTY; , k4 a& k. A/ s! n5 E+ l. i 6 l5 O3 S- h- v// Call IDispatch::Invoke()% ]; D9 b1 ]( c& U
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hr = m_pDisp->Invoke(' r: Q# u: t! C/ b% Y
requestID, ( ^, b! q" w) s6 X5 x/ d5 d9 p# z IID_NULL,8 o6 p# p4 f8 A8 u/ }
LOCALE_SYSTEM_DEFAULT,1 V- q4 v3 v9 T
DISPATCH_METHOD, ; \# D% r) p& e &dp2,. m5 c: R7 n9 }/ s) `* N
&var,0 r; t) a0 I) O5 v' y& F% P% f
&ei, # o- D$ I$ V/ Z$ h( n& ?' S# T &uiErr); " ?+ }" U9 K( s) {( \ ; m, K/ x- X) H/ G- q9 [& @ SysFreeString(topicStr); / B0 ^8 K" Z9 ~! T6 x* O# ` SysFreeString(itemStr);; z% c- R+ R" E1 a2 W
请问该程序是获得extend里面的哪个值? & Z3 D" u i5 {: }: A; N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????