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: . u" [ S( L0 v# z1 u1 kName = (WCHAR *) L"Poke";- J+ ]- S9 h4 F/ @7 E! @& V% i
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hr = m_pDisp->GetIDsOfNames ( ! b; ~) ~' w6 \$ Z9 X( D# n( S' E IID_NULL, // reserved, D7 Q* `! g s7 z3 S
&Name, // Array of names to get IDs for 8 P4 u4 C. r6 T% M- `. ?. g 1, // # of names in the array: w2 D( [, X8 X" F# {" W
LOCALE_SYSTEM_DEFAULT, // System locale 8 _5 r3 o, s% W& u8 h &pokeID); // Array of IDs to fill on output9 h' H" r8 n5 N/ k
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if (hr)6 e( ^5 b/ @1 K
{ k. _& @+ }) t6 W: J d' M MessageBox ("Get Poke Unsuccessful"); " Q/ D. o. v. ^: S return;" \, I' a9 G2 a, ]
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{. Z" \2 ^6 c/ q9 Y; J, W2 D& F/**************************传递数据给extend**************************************/ $ V" V; C" C0 J3 X+ v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);9 L' L: o, `0 m, w
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valueStr = SysAllocString((WCHAR *) L"1232");! Z. O# w1 |( `/ A) U/ n7 Y Y; F
VariantInit(&pokeVariant[0]); : B5 Z; e" `. M3 O pokeVariant[0].vt = VT_BSTR;4 d) X% T9 ]2 a9 k
pokeVariant[0].bstrVal = valueStr;8 x' G- u2 N* `/ ^" I- t2 d/ E w- N
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ Q2 z- r% P# Q
VariantInit(&pokeVariant[1]); $ d+ U& k$ ]# u( o
pokeVariant[1].vt = VT_BSTR;/ R$ v' J$ |- K0 M
pokeVariant[1].bstrVal = itemStr; ! Y$ G+ N; ~0 m7 y2 x# s5 h/ N1 x6 l3 o
topicStr = SysAllocString((WCHAR *) L"system"); # j8 u5 I1 s6 |+ m VariantInit(&pokeVariant[2]); ! P% E5 ^/ N- m3 q5 F' F
pokeVariant[2].vt = VT_BSTR; + m) M9 u& d( ?4 X S pokeVariant[2].bstrVal = topicStr; - d7 v$ V0 S6 d1 w& o/ d0 Z+ G. e, }4 _6 I+ B' O7 J% { m
// Set the DISPPARAMS structure that holds the variant. 3 P! j' l7 W$ Y5 j. M9 \. @% @/ E8 E2 ~- m. l
dp.rgvarg = pokeVariant;1 n$ {* ?2 t9 {5 P, @: A8 P z9 t- }
dp.cArgs = 3; ' q+ L" W3 }8 h6 s0 X dp.rgdispidNamedArgs = NULL;5 c/ H, r0 l' \8 F, l& @
dp.cNamedArgs = 0; 6 l* P% C; d9 b$ C/ F; ^& D Y# p' F1 o
// Call IDispatch::Invoke()6 k! ~6 P( h7 s; D; `
- W& q1 W7 b: W5 o; f: \ hr = m_pDisp->Invoke( U' i9 [9 u1 j" c- m. }- f3 T
pokeID, 5 ?4 c3 W7 X/ ~, q2 a* p IID_NULL,& `$ q" `7 {4 J# b3 v, w3 u
LOCALE_SYSTEM_DEFAULT, 1 E/ c: H7 i9 |- t& } DISPATCH_METHOD, / F" J( c5 U5 K- }0 D &dp,# Z" |# B; l& h3 a n9 i
NULL, ( v6 b8 ?7 h* j/ o0 h$ C6 K &ei,( _/ _1 X' G, S& l- f' L
&uiErr);3 O4 \3 M* A; F6 i9 l! V
' Z5 h) c% P* ^, o$ X7 h: c SysFreeString(topicStr);1 V4 v, `& ~: f
SysFreeString(itemStr); 1 P m. k8 H( n: J0 [1 t SysFreeString(valueStr); 1 v8 m- r" S. O8 P; F3 A 1 V' _* m% e/ _! _2 W( Z" C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??? ! e' Q( z+ \/ {# H: M1 x( K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???? ! K# t$ B* j0 d, R* z7 ^" \ ' w1 H) u$ q3 I V/ `8 x0 E; c# m+ t* I: G3 J
2.这是request的程序2 d% q6 Y; c _, f! G
// Request a value from Extend1 i* `* I, _9 \
// 4 L. @' ?, Q Q5 I. C, `9 F// Initialize the variant that will hold the BSTR. Set the variant's % v+ ?7 y; q( d- T" c! J! ^# L/ S1 r// type flag to indicate the fact that this variant holds a BSTR. Place the & F: d1 o; @4 J( M/ J// BSTR into the variant structure. 0 y0 K- U3 q' n0 U, ?9 ^, v# t+ S- h' U4 i3 C
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 b9 \( W! `( n ( t% N6 F5 g7 d, I% c! p6 _
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # Z1 b& |. U3 _4 t A* H | VariantInit(&requestVariant[0]); ( q- A; O. |2 A9 r) V
requestVariant[0].vt = VT_BSTR; & X0 l: p5 G) S: W requestVariant[0].bstrVal = itemStr; `0 s8 `% i, C. a
& g, d/ C% X. u1 n* r8 m+ j topicStr = SysAllocString((WCHAR *) L"system");# ]* z* D9 v0 q+ n" S
VariantInit(&requestVariant[1]); ! a, f+ D9 c5 K
requestVariant[1].vt = VT_BSTR; ) s: `5 N* M4 r6 X requestVariant[1].bstrVal = topicStr;! t1 O' E) Q2 D/ L7 V
! D2 |" d* C9 G: [4 R, Y% b" x// Set the DISPPARAMS structure that holds the variant. - F- }6 K& e5 f, s) a; Y, }( @# t, t6 {7 K e/ ~9 H7 ^/ n7 x; X
dp2.rgvarg = requestVariant;9 O" F/ G; F k! C; z" `& ]
dp2.cArgs = 2; 7 U1 ^. B/ Z$ p t dp2.rgdispidNamedArgs = NULL;/ Y) z% c( W; m6 V+ }* `% C) B3 G0 x
dp2.cNamedArgs = 0;( K; }$ ], R0 ?$ p$ [
2 F% I+ f: F% V3 h- Y var.vt = VT_EMPTY;, F3 H" l- m' s5 R9 R
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// Call IDispatch::Invoke()0 w' W9 U% z% l' \: _/ r1 z! v
3 w- `0 `; u# V1 y8 l1 J3 K+ X hr = m_pDisp->Invoke( 3 ]7 \8 i# _- s6 T; ~ requestID,! g. i% y) Y; {+ f% z2 I
IID_NULL, + F: @' [, g) x+ p9 ], } LOCALE_SYSTEM_DEFAULT,0 p/ E& Q* A/ c/ o4 s
DISPATCH_METHOD,: m/ X- T/ Y( s0 h; `$ E
&dp2, & L& _3 V+ Y O( u1 |2 v &var,6 v/ U7 z# j' t6 q. ~* Q& K4 ~$ w3 N
&ei, ! y3 G7 z. @0 f, k+ \ &uiErr); # @5 a% s8 T# G- x( Y 5 l8 l/ A2 }, N' W! s3 c SysFreeString(topicStr); 2 c2 j( y" v. v& _ P$ U SysFreeString(itemStr); 9 R' y9 m4 G Z; k请问该程序是获得extend里面的哪个值?$ s8 W" F- I" Z0 S8 h1 r2 F
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????