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:0 `0 i4 s3 h" K" g! Z" P5 q* u C8 G
Name = (WCHAR *) L"Poke";$ N+ g" K6 t; J: ~1 X# r
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hr = m_pDisp->GetIDsOfNames ( p5 d8 a2 ~# i+ X2 g7 G" k; _ J IID_NULL, // reserved ; Y9 R( u. [) L$ S7 [0 p2 B0 w &Name, // Array of names to get IDs for 9 g- T& {/ h1 Z% R 1, // # of names in the array * O5 u) C1 t' F3 t- U7 r LOCALE_SYSTEM_DEFAULT, // System locale' N) ^1 T+ k5 b
&pokeID); // Array of IDs to fill on output2 T; p; L3 z# ?9 l0 U' E3 Z/ ^
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if (hr)$ n3 A' Z% T. K( \, I. Y
{ W# o I: w- Y% s; z) q0 _6 g9 L, N MessageBox ("Get Poke Unsuccessful"); / s F ^! k" F! _) e return;5 N: Y' w; u' {
} ! A# z! ?3 `2 j; t( R 9 Q. _' V1 |; Y( b* g2 |, }- r/**************************传递数据给extend**************************************/ ^; F6 A4 T. D1 M1 t: [$ y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ F$ _( b3 B+ W9 p) V
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valueStr = SysAllocString((WCHAR *) L"1232"); 4 E' |+ z; ]8 X# E# u+ g VariantInit(&pokeVariant[0]); X2 R6 T5 Z6 ^+ z" c pokeVariant[0].vt = VT_BSTR;4 f2 B B3 M0 `2 M
pokeVariant[0].bstrVal = valueStr; # o" e4 t$ {% S" t; ~( F1 i6 g 0 e$ f4 N, x( j, I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 R. @4 J3 M9 \7 l p
VariantInit(&pokeVariant[1]); / r( e+ s- S! s+ J* B8 y- H) g
pokeVariant[1].vt = VT_BSTR;7 Z' I- N% ~; G( P2 M
pokeVariant[1].bstrVal = itemStr; 6 u' `3 a( j5 ~& w5 W" f 0 Q/ y, t# @" e% M' k& Q topicStr = SysAllocString((WCHAR *) L"system"); * K7 i! h- A( ~* M% p* \1 }! t VariantInit(&pokeVariant[2]); 7 z: p( _0 {! U4 o# V V
pokeVariant[2].vt = VT_BSTR;- C8 H, R& A! Y; d& @
pokeVariant[2].bstrVal = topicStr; ' ^. |. D" y$ b 8 L) Z. C( m! \% x+ J$ r// Set the DISPPARAMS structure that holds the variant. s1 ^: }5 W& b, y6 w2 W! M0 V6 Q9 E, V4 W- M4 ^& p
dp.rgvarg = pokeVariant; 0 { m: w6 G9 U' `- ~( \ dp.cArgs = 3; 1 x2 l) k7 n; Y1 b+ C: [: R dp.rgdispidNamedArgs = NULL; , ]! m+ R& M* T* M: n6 m# Q dp.cNamedArgs = 0; - k. G0 d* c) V' x" y! F; ` ! L# A( ~% j1 P0 H// Call IDispatch::Invoke()( \# c: l) y" i, v: b) |8 l: W& K
+ J3 G$ ]) W$ N6 s6 A5 O9 C3 o hr = m_pDisp->Invoke(, [2 `" U, ?2 \% L1 q9 t& c% \
pokeID, * J0 y9 B6 I. E& t/ ~7 w IID_NULL,. [* t" h# z/ d- n
LOCALE_SYSTEM_DEFAULT,: ?" c: F4 j2 V" w
DISPATCH_METHOD,8 T, A8 F+ R5 |
&dp, % g. ? `2 J( ?0 @, W. Q1 S, S NULL,- y& T- X. i9 z1 `* X
&ei, 1 w7 }$ L7 ?9 g1 _3 S &uiErr); 2 [ S. }+ G' ^. `+ c' q9 q% G - M! b+ M4 Y9 P SysFreeString(topicStr); , L7 l. |+ d8 t: }) W3 T0 U SysFreeString(itemStr); * } z8 A& ?) T9 O. D SysFreeString(valueStr); ' P) m% q, ]: @+ P( h8 x3 [ 9 h$ ]$ G/ c8 g: W* O4 Y" U5 Q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??? f% j8 k; e( G# j! T n
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???? ^, l, f. c8 V4 ^
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0 S( l4 T5 z c; z' b: Y: j( S2.这是request的程序 9 D5 Z: V( s7 F// Request a value from Extend+ M2 I' e/ ]& P F _
//: Z, p8 n5 |# u( G+ F5 U3 C
// Initialize the variant that will hold the BSTR. Set the variant's1 U0 I+ O+ B5 S( f! e- ]
// type flag to indicate the fact that this variant holds a BSTR. Place the3 c3 y0 L; C. s8 n" U8 t# ~
// BSTR into the variant structure. ' y3 C7 R2 C6 K' G4 H ! N, ^, `7 k8 _; E4 a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 C }8 J, ?6 U3 M
4 @3 J7 u2 l, ^5 `, ]2 |: e itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); / c+ X" f, v) j- N VariantInit(&requestVariant[0]); ; S2 P E3 A1 x7 y1 | requestVariant[0].vt = VT_BSTR; + _: ]$ T2 P+ ?3 E; r# Z requestVariant[0].bstrVal = itemStr; / O$ w# r3 ]9 R$ I2 ?0 l 7 }: G5 U- H1 p s7 c- D6 ]/ H topicStr = SysAllocString((WCHAR *) L"system");. @5 a9 t1 ~ ?% P6 t' }" B( ?2 O
VariantInit(&requestVariant[1]); 7 H: e' [) u/ ]8 H+ e0 K. [ requestVariant[1].vt = VT_BSTR;+ F5 h5 {2 t$ U, t+ `* u
requestVariant[1].bstrVal = topicStr;& i( R- K8 Z- I( r* Q Z+ J' H
7 M( ]" E* b+ s4 N7 Q( ]// Set the DISPPARAMS structure that holds the variant.* T3 c/ y& n, q6 ]( ^
4 |. Y8 ]- p" S, C5 U dp2.rgvarg = requestVariant; 9 S& N: b( {( p: C' z dp2.cArgs = 2;7 |& O3 r7 u! G. D+ `, U
dp2.rgdispidNamedArgs = NULL; 8 W( i; k' `2 R( h9 r! f dp2.cNamedArgs = 0; / d" r6 r, x4 d* y$ r2 G1 |) \ % W' L/ ?4 N9 y% D var.vt = VT_EMPTY; # ^# E+ }" ~5 m9 Y0 k2 ?) q6 G8 T - E; e; u* H1 f: Y5 T2 t// Call IDispatch::Invoke()8 s b: x4 i7 L0 y5 E5 y& a: D
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hr = m_pDisp->Invoke( + O& P& e& g! D: O; i requestID, & N$ x/ ]6 O0 V" `4 ?: ` IID_NULL, 4 V; {1 h: W& m# a6 c LOCALE_SYSTEM_DEFAULT, * h+ U& S* d# E7 E2 r/ N6 u DISPATCH_METHOD,# U* R, w' F, @* D) ]
&dp2,* o- | N$ R# [
&var,$ g+ s7 L- l0 V) C
&ei,* x7 [( F7 w1 s) q2 p* S
&uiErr);% D$ {9 I$ U2 t. e, ?8 Z
6 p7 R6 u, G' E; I+ O6 H SysFreeString(topicStr); . K& [# F# {/ R: n4 W) j SysFreeString(itemStr);9 D1 U* Z% s4 W8 p. K7 L6 ?! Z% v
请问该程序是获得extend里面的哪个值? ) p6 S1 V2 w+ |' `* o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????