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:8 O& Q3 `, w: x
Name = (WCHAR *) L"Poke";0 G h/ `/ ]" C+ y; K* U
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hr = m_pDisp->GetIDsOfNames ( # f0 X+ H; S/ v- F+ Y/ ? IID_NULL, // reserved - b. V2 A9 t, @2 s% j8 r$ I &Name, // Array of names to get IDs for # U( _4 j* x$ X; Z+ {+ c 1, // # of names in the array ; p/ ^. h) t) z P; Q$ e! @% f LOCALE_SYSTEM_DEFAULT, // System locale* c" Z. t4 I- W9 C5 M; m
&pokeID); // Array of IDs to fill on output8 W! D) O9 T7 Y: c$ H6 |7 ?& O/ ^
4 B% J; w& H! v) j if (hr)5 J8 _5 h7 x9 ]4 n) V- A
{ / h, V( ?: L @* K) `9 t1 Q9 t3 W MessageBox ("Get Poke Unsuccessful");0 Q- j" H, c1 J4 N
return;6 O# e J2 B) P7 t& b8 a
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1 U$ q. Y, s5 U: Q/**************************传递数据给extend**************************************/ ) O8 A" Y K+ m0 h/ B/ w1 A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / o, e* K+ ]. b! Y ! C8 y, `& r& C& B" }. v
valueStr = SysAllocString((WCHAR *) L"1232"); 2 a2 g) `1 I4 P& u8 b VariantInit(&pokeVariant[0]); , _: A& Z+ K2 A3 d% ` C# h' k
pokeVariant[0].vt = VT_BSTR; _7 D2 ?! V9 @) R6 g: E3 V pokeVariant[0].bstrVal = valueStr;; k+ I9 \. Z% y$ Q
5 p0 }7 S, H1 ]# T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; D0 X8 y) S; g- N9 P- S VariantInit(&pokeVariant[1]); + y+ p- s7 I& W7 e; K4 x pokeVariant[1].vt = VT_BSTR;1 ^/ w9 n' O: @2 r, a3 _" u! r
pokeVariant[1].bstrVal = itemStr; ! i: Q: j- h- E! y " c7 E" f _) @1 f4 R8 t/ \* x) } topicStr = SysAllocString((WCHAR *) L"system"); 7 @6 L) z# J6 i5 [ VariantInit(&pokeVariant[2]); $ K1 ^3 I0 g- w& I pokeVariant[2].vt = VT_BSTR;: A1 K( s' |+ B- l* v! D
pokeVariant[2].bstrVal = topicStr; ' C" ~" y3 S% p( f' x1 h' k0 ^9 C# ^7 x4 ]- m+ C: F
// Set the DISPPARAMS structure that holds the variant.: r5 ?" B+ |4 N0 r+ p5 Q. F
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dp.rgvarg = pokeVariant; 3 j# ~' w" E6 ^( r) y dp.cArgs = 3;$ \. A! d! a8 u8 K0 P+ i
dp.rgdispidNamedArgs = NULL; : ^6 ^6 Q3 l* L. p dp.cNamedArgs = 0;4 |* l; \+ b. o- U
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// Call IDispatch::Invoke() / ]; X, w; k$ a1 f" F 4 M( k9 K) A! F6 U4 q, L hr = m_pDisp->Invoke( 1 R2 o2 j4 F' `3 l pokeID,9 w; y% |# \' ]! Z |
IID_NULL,! ^3 j3 K) m4 q: m$ \
LOCALE_SYSTEM_DEFAULT,7 |6 _! h7 t" w. H
DISPATCH_METHOD, 6 ?' C# e* J1 h0 l) B) A &dp,0 W4 @ T1 \9 E. Z2 ]
NULL,0 B' D% z3 W9 Z" r' z
&ei,2 {" B" _1 Y# z" ^
&uiErr);1 @: [8 c4 q: w6 `. W7 h w
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SysFreeString(topicStr); 3 p( V5 E) ^% S% V SysFreeString(itemStr);1 Y' O8 I& C8 k8 N
SysFreeString(valueStr); 3 `4 p* n) m4 | / t, u' e/ L( q( g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???2 P( W4 \9 _( l" t
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????6 B% X" M. s2 Q! h: P
& s2 @. X0 H* B) g8 ~( W2 j- w 7 W( G1 J; P5 n" j. }2.这是request的程序 : u5 f! T' K1 E8 y$ ?// Request a value from Extend$ m% S1 }* z1 C4 \! g& K
// C# l/ X2 |% L& A* s$ S9 \' B// Initialize the variant that will hold the BSTR. Set the variant's 4 K' u+ d/ C* W6 d6 Y! `* x// type flag to indicate the fact that this variant holds a BSTR. Place the 6 p m% l d9 ?" I L// BSTR into the variant structure.# l3 P* }3 V# c, E2 F+ u
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ f/ s! O T2 m8 k# L3 ^2 t
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 x! ~; v2 j( e9 O4 z" _6 G" l
VariantInit(&requestVariant[0]); / A& x% |7 j5 b( X0 [( T* c5 l2 `
requestVariant[0].vt = VT_BSTR;6 n; o; ?6 j i$ `; b2 o2 F
requestVariant[0].bstrVal = itemStr;7 }: t0 o" W' w+ U# _. h0 ~2 ^* A
( J9 O- [2 u5 T topicStr = SysAllocString((WCHAR *) L"system"); & g( I2 E( G) ]* C" q VariantInit(&requestVariant[1]); 8 X' M/ i- C7 X% f A: }2 n requestVariant[1].vt = VT_BSTR;4 q: d: q! ^- ^* [8 n# |% F: x
requestVariant[1].bstrVal = topicStr; 3 A" ?: Z" h" Y) E9 R0 h% A$ t K6 d: H: x W
// Set the DISPPARAMS structure that holds the variant.3 V/ H$ b( _. x& D3 d& F7 Z
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dp2.rgvarg = requestVariant; ) p) K0 A C7 @9 k, Q dp2.cArgs = 2;0 `, M) r5 Y. [
dp2.rgdispidNamedArgs = NULL; - u1 s6 @ i" S _- q: d' k dp2.cNamedArgs = 0;3 l# s4 e+ f' {
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var.vt = VT_EMPTY; ! d; n4 Y h4 i# ` Q7 K ) T! ?& q7 |1 e, y( k1 Q* i// Call IDispatch::Invoke() & N$ m) O5 R6 c. o, e6 n8 K3 t! ^3 Y' v6 Q$ `! P0 T0 D. y; O/ v
hr = m_pDisp->Invoke(3 o4 w& y/ @7 K- P: R" Z, ?7 y
requestID," m0 C5 B) `) x, `
IID_NULL, ; X; k: r3 I# [+ F( X LOCALE_SYSTEM_DEFAULT,) M6 L) I3 X& a/ }" e5 l/ }
DISPATCH_METHOD, ! y. L5 N! Q; k; _( F4 D &dp2, 0 M% u* o8 H* G# `9 K0 _. e &var,. k. }8 v, p0 x
&ei,# o) y, C0 G5 B3 ?0 `, D# Q
&uiErr);% O' \8 N2 [: A$ T/ t; J2 y
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SysFreeString(topicStr);% b# `1 V/ |, q9 w
SysFreeString(itemStr);2 `" J' D. c+ X/ ~; o
请问该程序是获得extend里面的哪个值?+ w% ~+ v$ G2 r h7 k- ?
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????