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:( }, S, H; {% { p6 q" v" m( c
Name = (WCHAR *) L"Poke";# k- R4 Z, o. l, N9 u
R" O; ?7 r6 s: c# m/ W9 O hr = m_pDisp->GetIDsOfNames (3 i& x8 I. `- E+ x. k6 f
IID_NULL, // reserved; q+ ], u( A5 |8 S; t# L
&Name, // Array of names to get IDs for * L: v+ Z- P! T. m2 l% |2 Y6 y 1, // # of names in the array . k# w" S$ f2 {4 Z LOCALE_SYSTEM_DEFAULT, // System locale! y) w/ z4 [" [( S& J
&pokeID); // Array of IDs to fill on output$ P$ r9 j! |, W3 E% x
% h O2 I9 A4 C1 P if (hr) ; s8 e9 E' g/ h9 A' B5 L+ P/ | {: Y' m$ f, R# I! M" f# `
MessageBox ("Get Poke Unsuccessful");+ V% K; T U' L8 n4 I
return;. ]4 L3 u6 |9 T1 T
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/**************************传递数据给extend**************************************/# ?* r' ~4 Z* G
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : X. o' g3 k& ~8 m 2 {4 I M% p' p' D( m* B0 P valueStr = SysAllocString((WCHAR *) L"1232");, F$ C6 W, ?2 Y: w7 p
VariantInit(&pokeVariant[0]); * Y5 z2 h7 f$ Y3 i
pokeVariant[0].vt = VT_BSTR; ) Q5 b5 p/ j4 F! F- ~- J# l pokeVariant[0].bstrVal = valueStr; 4 v8 W9 S) X$ T# Q2 Y, V7 E7 W; h6 q# n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" B+ ^$ I5 U% G! y0 ^ Y/ v8 z
VariantInit(&pokeVariant[1]); / y/ [8 d) p9 w) {' g5 t, F pokeVariant[1].vt = VT_BSTR;+ W0 `8 _$ m3 n: `
pokeVariant[1].bstrVal = itemStr; r/ I$ K$ P( i0 o0 b - Q" L* Q2 ?8 h6 [! p% c0 u0 \ topicStr = SysAllocString((WCHAR *) L"system");) \0 V" b* |' _* @/ N$ f
VariantInit(&pokeVariant[2]); # M& q4 l4 G* s0 f pokeVariant[2].vt = VT_BSTR; 0 F: n6 s/ M, p4 L" P+ t3 E' [' b pokeVariant[2].bstrVal = topicStr;# x! w8 @7 f7 Z" y
! C5 [1 j$ a2 W// Set the DISPPARAMS structure that holds the variant. # Y% R- f, F/ |+ C9 g ; [4 f7 I, J0 J4 T dp.rgvarg = pokeVariant; , ~ h7 H' @; S D* D- w1 m& v dp.cArgs = 3; , o' |5 o; i) ]5 O. g9 q3 P dp.rgdispidNamedArgs = NULL; ; ^8 D t" {2 W dp.cNamedArgs = 0;8 T- M+ }7 F. E
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// Call IDispatch::Invoke() 8 p5 ?6 S4 P7 v$ w5 R: V% W. {2 z( v3 K( @* k$ i
hr = m_pDisp->Invoke(; J- z" D4 x+ G( k8 j! W
pokeID,3 C* Z8 S2 T6 l6 M
IID_NULL, 3 O: |: ^- U& l3 V% l LOCALE_SYSTEM_DEFAULT, " R" [3 ^3 X% {) l r# j M DISPATCH_METHOD, 2 ?- N9 L0 y! B2 g &dp,* H/ ^/ t7 G$ o- s1 Z
NULL, K9 B5 e* @+ S8 i+ |/ Z% f3 g
&ei,. e" B c1 g/ {. }, ^ W- p
&uiErr);) o# R9 F; Y5 {2 O: h$ i
4 |5 |' d8 [0 \5 d# ]. K6 G2.这是request的程序. y$ [1 H8 g' |* |! r" J
// Request a value from Extend+ A- C! [0 D+ J. m' z* ?% E
//% t8 A" @6 Q# k5 o* r7 m& B
// Initialize the variant that will hold the BSTR. Set the variant's" e6 Y; V7 @+ |# C! X" G& L
// type flag to indicate the fact that this variant holds a BSTR. Place the * `/ S9 h% Q |2 t9 K// BSTR into the variant structure. . J4 p4 F/ q5 k" ~3 n ! j% |& j3 j# r# B7 F3 b* S; ] requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 @# a4 q* k$ ]+ T" K5 O. _0 \
" m; n p5 D% e( k; g- W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ Z) y! v2 H) v
VariantInit(&requestVariant[0]); $ b. D! _2 @9 x2 X
requestVariant[0].vt = VT_BSTR; : ^4 E1 l: F" S+ A" @ F4 E requestVariant[0].bstrVal = itemStr;4 j b* J1 q* f2 { K( s
' x F V/ X- o+ u topicStr = SysAllocString((WCHAR *) L"system");( C% \5 t6 u7 c
VariantInit(&requestVariant[1]); 7 r! c- F5 T; _$ _ requestVariant[1].vt = VT_BSTR; ) k+ a9 ?# A c% C1 ]# b: c requestVariant[1].bstrVal = topicStr; - N0 ^* b( H7 I# Z" ?+ O' u( [$ {" A) M2 y* u
// Set the DISPPARAMS structure that holds the variant.3 w! m( B; X E- N+ U4 ~! r7 a2 M: Y
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dp2.rgvarg = requestVariant; ; c, G! P, w: X8 N dp2.cArgs = 2;0 C: {2 u* f& H$ b2 Z3 S1 h( i
dp2.rgdispidNamedArgs = NULL;: }: S" }9 B3 u" N, @
dp2.cNamedArgs = 0;+ H1 w8 u t/ f3 X) v X
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var.vt = VT_EMPTY; 6 T3 `- a2 F0 @& I" A# u ! @( ~! i* T* ?3 a// Call IDispatch::Invoke() : j: j) g* c: v4 h: S2 Y # N8 Z; U0 c `" i1 m% Q6 D hr = m_pDisp->Invoke( 3 z. Q# x9 C# e, G5 z6 K) L requestID,- [ n5 a3 o# I0 p: J" q/ ]
IID_NULL, ) s* k5 r4 ~- l. Z9 [7 Y( r LOCALE_SYSTEM_DEFAULT,. ]4 w9 d5 M( \3 p D
DISPATCH_METHOD,5 O, g& ]: J, C: C8 _; E
&dp2,% m3 N: T) {5 H
&var,2 T) {0 k4 c O
&ei,. M/ B1 H# ~+ i% S; r) w
&uiErr);6 H# }$ H, e7 ^: I( a+ F2 v: P$ Z# H& }5 w
# @ n% b9 P- `4 \! p9 e& D
SysFreeString(topicStr); # z( n, E/ L- _( k. R) X) { SysFreeString(itemStr);, `1 \9 N* p& E3 g8 n( G. x
请问该程序是获得extend里面的哪个值?0 d$ ]% @! F2 E" n1 O7 I" z
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????