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 N* y" x1 \5 u, s% T3 `Name = (WCHAR *) L"Poke";) h, @; f8 i8 h0 s, t
; g' a+ t, z2 v8 M- Z hr = m_pDisp->GetIDsOfNames ( 5 q0 M1 `2 U& v2 w IID_NULL, // reserved. Q# T1 b! B o8 G- c! U* M
&Name, // Array of names to get IDs for ' j% R7 c% t4 T, | 1, // # of names in the array7 g# [$ x# E1 T+ V8 Q+ r3 T5 D+ O! T
LOCALE_SYSTEM_DEFAULT, // System locale/ s8 b; e! O: D; |! b$ z ?
&pokeID); // Array of IDs to fill on output3 I3 _ u7 D3 m
: D7 R4 I& Y2 W \$ ~/ ^: G if (hr)( O' r6 J8 h) {: q' z% r- a
{% ~8 }$ o; t8 ~
MessageBox ("Get Poke Unsuccessful"); 8 \; l7 e) q# j( S0 A3 O) W return; n8 b$ `7 }8 Q- K3 q }' B1 l! E, |* t3 W4 g
8 i8 L4 W; W' i# H
/**************************传递数据给extend**************************************/ w) f$ t a, a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 9 B6 @6 ?( }7 C. x/ p- u 6 g9 Z) c/ e+ N E* M( f! U
valueStr = SysAllocString((WCHAR *) L"1232");) b, d# D ^3 f! U& g+ ]
VariantInit(&pokeVariant[0]); 6 G/ @( U: b8 Q% p Z pokeVariant[0].vt = VT_BSTR;$ Q# F, _* o4 ^9 x F* f$ C- D
pokeVariant[0].bstrVal = valueStr; + V0 I4 O2 |9 z/ }( S* R ( ^7 W( J% u! ]8 q3 Z: A- ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 R' e8 }* w) r+ _* O% b% H VariantInit(&pokeVariant[1]); " I+ H2 x/ n5 K/ m# x& a3 a pokeVariant[1].vt = VT_BSTR;! G; c# c# u5 z& C, O: x7 [
pokeVariant[1].bstrVal = itemStr;9 F2 j4 {1 Z/ p8 z. Q' a; z- Y
! J" p+ B, v R a, D( \" i topicStr = SysAllocString((WCHAR *) L"system"); " \, B- u! `% I1 U! n, g v VariantInit(&pokeVariant[2]); ) @: T3 d1 w5 `8 R, H
pokeVariant[2].vt = VT_BSTR;. i/ d& [7 I3 l& T/ W( p
pokeVariant[2].bstrVal = topicStr; - c' b% Q: Z0 C- }# `* g( }) K6 f/ c! v( T5 r: d( w
// Set the DISPPARAMS structure that holds the variant. $ r. P6 q* {) E9 s0 c% U) t8 p! n; g4 N/ v
dp.rgvarg = pokeVariant; 2 Y6 h/ i z% X- \% N) B dp.cArgs = 3; 0 g; z3 c5 |+ u( ^, Y! v: ?8 J dp.rgdispidNamedArgs = NULL; & [. k2 T8 |# n6 R# Q dp.cNamedArgs = 0; - i6 Q( h0 a& a; t3 v' { x' k I% A0 ?
// Call IDispatch::Invoke()) e( y! F# X& j* E$ l: T. F6 {
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hr = m_pDisp->Invoke( ( t) H& q. f9 k+ g! G! @ pokeID,0 u3 H3 w6 G- ~( W( w9 q: L
IID_NULL, 5 d+ Y9 Z3 R8 \( d- B. e LOCALE_SYSTEM_DEFAULT, ( T# j1 Z! p9 N5 T5 q/ ] DISPATCH_METHOD,9 }* l- o0 f! ]9 F7 J2 ?
&dp, 9 |) b0 s# Z2 u4 \, a NULL, . h; y& H( E: L: G; P &ei,+ p% F/ k: ~# M. P8 T& p( c
&uiErr); $ G# G2 C8 h. L! J* k" B- W$ o+ H# p2 F7 P
SysFreeString(topicStr);- r: K9 n! x+ W$ y3 S
SysFreeString(itemStr); + j1 R7 ]; w8 r$ p; |( W4 Q& S SysFreeString(valueStr);. A' b1 C: Z1 f% ]5 L& J$ G4 W
, A/ M* y4 p) T( D7 `2 s' t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??? " x r L5 u4 P5 e) U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???? 1 Z2 b, i6 v! k& A C " M' f3 b3 O- D: ^% B/ R$ A& |+ e" |% Y; e2 }; {) a& E+ o
2.这是request的程序4 h7 p Y$ W3 C; {$ s/ I9 s& _
// Request a value from Extend 9 _( o& Y* a! l/ ]7 s! x2 a//5 d; L7 K* a Z9 O4 q; F
// Initialize the variant that will hold the BSTR. Set the variant's ; Z+ m) o/ `5 a3 _ L1 f// type flag to indicate the fact that this variant holds a BSTR. Place the 7 k( |% W) u% X% R* k' H// BSTR into the variant structure. 6 I7 O. @; Z. S9 r- M5 I. ^2 p : H8 W- g7 A% w i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 o5 V! }8 m, h" W7 }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) p+ @; e( e. w+ K m" \" J9 f8 R
VariantInit(&requestVariant[0]); 2 |( f9 W9 m; U3 ?
requestVariant[0].vt = VT_BSTR;! b( l7 {+ u9 t% a$ C
requestVariant[0].bstrVal = itemStr; 6 Z: t( t; k* p( r 7 b( w; I9 t) A% s: ] topicStr = SysAllocString((WCHAR *) L"system");8 U) k3 b0 {1 `6 e* @8 s4 V+ B
VariantInit(&requestVariant[1]); 7 f1 n1 Q8 U& Y& c" A7 F
requestVariant[1].vt = VT_BSTR; , Q4 R$ a6 F3 w* c$ @, P requestVariant[1].bstrVal = topicStr;- ^0 A! t0 E( o3 B9 E3 Q
& K6 @/ @+ [! ^7 l- q) D* [
// Set the DISPPARAMS structure that holds the variant. # S$ q# o. E+ K' T! @& v, Q7 d% { X4 J$ u+ G% g" B
dp2.rgvarg = requestVariant; ) |! _# |/ Q/ F9 ^3 z dp2.cArgs = 2;: s. K% J+ ]% }1 p$ ^: r, b
dp2.rgdispidNamedArgs = NULL; - J* ] ?% _2 g6 H* t- V dp2.cNamedArgs = 0; + h5 x, L0 _, H1 C Y* \0 Z/ ^& J- `; P6 k8 b var.vt = VT_EMPTY; 8 H6 b5 p2 V9 L5 U4 B5 r1 `6 t2 p: M: n) r* Z
// Call IDispatch::Invoke() 6 H, s: k# ?! ^! i, g0 Z( N6 s; K' @7 z# @4 B/ t S
hr = m_pDisp->Invoke(- c3 ?5 O4 M( Q9 ~5 q
requestID, d; t: N8 P2 [, f; l) b! H IID_NULL,; r: g- ]1 F0 ~ L
LOCALE_SYSTEM_DEFAULT,' K' r" \# ]/ [/ o! ]/ R$ }
DISPATCH_METHOD, 5 [- D6 s8 U, I$ u! W: o6 c &dp2,3 v' o; q! J+ u
&var,; [/ L* ]$ y* X& ]1 |
&ei, , N' \( q2 Z, [4 u7 p &uiErr); ' c4 G( Q% M0 x/ \* j6 M3 P - r( e6 u' e2 w) K6 y( k t: `& C SysFreeString(topicStr);/ R3 N! J9 W3 K% a, O0 t
SysFreeString(itemStr);5 H) Y2 Z( y d& N$ w. r
请问该程序是获得extend里面的哪个值? 8 @) h+ \ D5 z' K3 N& p* |/ `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????