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: g; q, t; ~ [7 F j" u. q3 j* tName = (WCHAR *) L"Poke";5 ]- n/ O: e% h6 W* X5 t
; _3 M' y( u( @: t* `7 t hr = m_pDisp->GetIDsOfNames ( + J! V- A) R# B4 ~. u7 ~& H IID_NULL, // reserved+ E9 o( _' r. }' e4 G3 J1 r7 _
&Name, // Array of names to get IDs for) W) [! b7 l5 ^
1, // # of names in the array 4 Q! G+ U4 L' `! p LOCALE_SYSTEM_DEFAULT, // System locale# l1 ^( K I! F; i
&pokeID); // Array of IDs to fill on output* L f, w. a5 I2 V
" _) ]* t# m' f" S if (hr)& f! q9 R# ^* w% M% A! u8 F$ l! \
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MessageBox ("Get Poke Unsuccessful"); 2 g& {+ F3 j% y; G3 y9 N9 V return; 1 l( J8 r6 D" T! G8 H* W2 T. V } # ?* C% c2 [: L w. m5 t! Y4 k) i 2 I6 i% T, K' y% d/**************************传递数据给extend**************************************/6 R) q+ B& i( D2 h9 S
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " f. i6 y& o' X. [ $ [! ]+ P( u3 L& Z5 o, D valueStr = SysAllocString((WCHAR *) L"1232");, t( ^6 k' N, K! A. A% |; e
VariantInit(&pokeVariant[0]); % d7 g" o& W: ~; h' { a pokeVariant[0].vt = VT_BSTR;0 y6 B8 t( ]- ^$ l! A, p$ q, c
pokeVariant[0].bstrVal = valueStr; ' L. d1 b! `, t8 m: N / |# f% ]( @7 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" k# P% ?: `$ {1 ?' [
VariantInit(&pokeVariant[1]); 1 [( `5 Y- R. a' b" c pokeVariant[1].vt = VT_BSTR;# E& A- T# v% u& |8 w
pokeVariant[1].bstrVal = itemStr;. K$ j5 d: r% Z
6 B1 [$ A0 M8 l; g8 e topicStr = SysAllocString((WCHAR *) L"system");. x* K) _" c' I& O
VariantInit(&pokeVariant[2]); " j0 H& g6 t1 A" b
pokeVariant[2].vt = VT_BSTR;4 o; v, V( s) u$ C* k0 I
pokeVariant[2].bstrVal = topicStr;" Y) t6 T+ {7 L% ^ ]
8 p4 j$ G4 X$ [) s# n4 W// Set the DISPPARAMS structure that holds the variant. , S& ?, U3 E+ @0 R9 \3 U0 ^& {/ J, ?% F& O& ?- C
dp.rgvarg = pokeVariant; G/ Q1 X. i$ u5 D' P
dp.cArgs = 3; ! A* Z1 _" V4 J9 S7 m8 T4 T dp.rgdispidNamedArgs = NULL; $ H9 X; d4 F" ?' H* g H& ]$ D dp.cNamedArgs = 0;" j; U2 A+ B* ]0 n% n( D9 U, s$ P! f
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// Call IDispatch::Invoke()3 R/ s: A' m2 I7 W' }
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hr = m_pDisp->Invoke(. Z" D) E" d0 @- A) r u
pokeID, ( ` |5 J. [& ~) J IID_NULL," Y. U( p4 ]9 Y+ L* j4 M- F6 u5 n
LOCALE_SYSTEM_DEFAULT,: {& y/ q3 U, c; m& X% f* c
DISPATCH_METHOD, ( S- A: X! f* k &dp, ) V t. I( n9 E% ^, C& e NULL, 2 [ `( V! S" {7 }8 q. b &ei, 3 G: |, K k \2 d4 F &uiErr); 0 Z4 ^# I1 T! U5 M& ?( j: R0 a- Y
SysFreeString(topicStr); ' A( P, [6 _# K# @- L! w4 }3 b SysFreeString(itemStr);6 U5 M, J; Z, U' v) P
SysFreeString(valueStr); H, Z9 Q# K9 e$ y) h8 Y* Q 3 \0 }# z1 X& E1 F, w% z# N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???& K( f. i8 w+ x6 T& F! R
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???? 9 p: S* p0 [* f2 b M, r7 E) ~" A1 \- ]! }+ W: D) e- M; o Y
2.这是request的程序 ! u2 a. o% V2 m% w/ M4 Z+ F// Request a value from Extend ) U; [) s q& w6 T5 |" w* G//( b6 U+ {8 T% K
// Initialize the variant that will hold the BSTR. Set the variant's }- M* w' e0 t1 x! T( b// type flag to indicate the fact that this variant holds a BSTR. Place the - L+ g s: B) U) O: X4 Y// BSTR into the variant structure.- L0 g O4 q, `
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , \1 q1 Z% v1 n: k$ G/ o8 J / V- u8 Y2 u9 O) t6 r5 I
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! D" L* e& A3 g3 l
VariantInit(&requestVariant[0]); & s& ?3 x" [& I: T) y! ^
requestVariant[0].vt = VT_BSTR; , K3 d4 v3 S- M5 _9 a requestVariant[0].bstrVal = itemStr; % Z. \2 [9 V9 L- F( ^/ D+ l- L' d" v. Y7 ~2 O3 x/ V- p
topicStr = SysAllocString((WCHAR *) L"system");/ ]" C8 J( j5 F9 M
VariantInit(&requestVariant[1]); % n/ U2 q- @0 e9 Q/ w! P# ~ requestVariant[1].vt = VT_BSTR;: t6 K! B% N2 w% w+ M% W3 L, o% F
requestVariant[1].bstrVal = topicStr;& \. [1 k: y" n2 T9 Q' w0 J+ _
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// Set the DISPPARAMS structure that holds the variant. 6 C! w# p" @9 V) Y3 v! P ( G% I G6 b1 T; u3 B2 s0 W dp2.rgvarg = requestVariant;* M7 ^# v- l; x+ e q6 T% B1 Q
dp2.cArgs = 2; / ^8 T4 H0 K- H; s, Q dp2.rgdispidNamedArgs = NULL;/ `$ x, t& a6 Y
dp2.cNamedArgs = 0; + K, [% I7 O# O: J& } 2 @4 e8 y) c1 l0 g var.vt = VT_EMPTY; ' C8 w4 J5 a& v! A ; Q9 l' {+ ?2 b, H% M! G8 M$ O// Call IDispatch::Invoke() , H; ~& P! d% i2 d4 ?0 z # S2 q: Y; ?4 k9 [, \5 N9 @5 g hr = m_pDisp->Invoke(; [$ O( \8 x5 H; w
requestID, * J1 G9 N) S' ]7 K3 w, R IID_NULL, : w. V/ d1 d8 a3 s& u$ B LOCALE_SYSTEM_DEFAULT,2 m, S Q) d G* Y2 }
DISPATCH_METHOD,0 ?$ z( _8 _9 J5 q! {
&dp2,- m& U2 A' u' n
&var,. E7 `5 }2 n: x5 G% A5 Q
&ei, ; c% x) t/ l' W$ h, N: `4 ? &uiErr); 2 g1 K( _* F. M/ j. B* t0 @* n+ Q! Y4 s, V' `$ I7 v
SysFreeString(topicStr); 1 ]- D& j: y7 |) a, {( y5 S6 L7 F SysFreeString(itemStr);8 }( P, U: ` ^" ]1 G. k# `
请问该程序是获得extend里面的哪个值?3 p, a; \6 g! W" X7 @/ A/ J
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????