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: % r U9 n" U4 aName = (WCHAR *) L"Poke"; 9 P5 N7 l( z# f& V0 x; m: } + A7 x; r, U" ~9 e* g/ Y4 F' m hr = m_pDisp->GetIDsOfNames ( 2 i0 I; V& F& ~" |9 s! i IID_NULL, // reserved! f# o0 n) x5 `% x, U4 n
&Name, // Array of names to get IDs for 6 i' ?* c) a ?! N 1, // # of names in the array3 O/ K9 r, H& U2 m, K$ L2 @# ^8 f
LOCALE_SYSTEM_DEFAULT, // System locale 1 }2 y0 Q9 ], H% |. A& u. p+ s6 Z- o4 q4 S &pokeID); // Array of IDs to fill on output, F* c! @9 C f
" h, a6 W/ A; A* p2 L5 I if (hr)2 D( K) U9 b$ Z4 _
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MessageBox ("Get Poke Unsuccessful");! C/ i2 t. W- a2 C* O6 e" E1 O1 R" o
return; ! Y+ V }! F5 a4 q" b( l% w } " k1 o( y8 _, h# O# Y ; S+ P/ t3 _! u2 Y7 z1 l9 M8 p/**************************传递数据给extend**************************************/0 q* R! r5 `4 f) i9 f. q. Z$ H
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ~/ ~3 k" |# y . ]6 i7 g# F3 ?3 g% T. M valueStr = SysAllocString((WCHAR *) L"1232");0 q: B4 O* ?4 I5 _3 H
VariantInit(&pokeVariant[0]); . u9 c- B8 l4 O! d
pokeVariant[0].vt = VT_BSTR;3 q& }# T8 s |: w! Q) J& P/ d
pokeVariant[0].bstrVal = valueStr; / U% e5 Y$ \9 Y* L1 y/ O8 \& @ ) h( g9 g. f( V6 W+ X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); v% q2 j5 D- G VariantInit(&pokeVariant[1]); & l5 ]- |& Q5 _0 S; I$ { pokeVariant[1].vt = VT_BSTR; : E) O4 F0 |. W3 A6 m7 l6 K. p pokeVariant[1].bstrVal = itemStr; & u% A5 {4 \2 D ! B* h2 D$ c; n' D topicStr = SysAllocString((WCHAR *) L"system");$ s5 m9 X0 x1 t+ B* N9 o" m
VariantInit(&pokeVariant[2]); 6 ]7 o" A4 O$ Z' f; [5 e7 }' D
pokeVariant[2].vt = VT_BSTR; 2 l. a, z' Y9 d7 I pokeVariant[2].bstrVal = topicStr;2 z! I E% _4 ^( X$ A
' I) [" _* k0 p+ F// Set the DISPPARAMS structure that holds the variant.* U9 I4 W2 k0 ^- a, G
4 Y5 Q9 r- d7 p( b# i' j! R dp.rgvarg = pokeVariant;$ P2 o! P" |5 c+ E9 n+ W. s
dp.cArgs = 3; 3 T# u- G2 D% h- o& G dp.rgdispidNamedArgs = NULL;! n, S, _. {& F% \- H2 D* y4 o
dp.cNamedArgs = 0;. p& q( ^8 C, |$ u, _
! I0 R# Y5 |5 t/ Q0 ]// Call IDispatch::Invoke() 2 Q% J' I: q+ B: r: O1 E" _1 I* D . t/ B" j f1 s0 d0 h+ j1 q hr = m_pDisp->Invoke(, {/ i9 {0 ?. i# y, W
pokeID, 2 w/ |& j0 N- e2 L( J# s IID_NULL, & j/ K2 F3 g r LOCALE_SYSTEM_DEFAULT, : B2 k7 O ?( d8 z2 L0 R. P DISPATCH_METHOD,2 K) h/ Z# r7 b# G- j
&dp, " W: l" u3 j- ] NULL,6 r# ]) Y% M/ C# z
&ei, % f5 P' N( S* n* \/ L &uiErr); ' M5 ~3 X" b0 \/ r* M& \ / o! t5 w6 O/ \) e( {4 Z SysFreeString(topicStr); + R' _# E! M- q2 h+ ?' ~ SysFreeString(itemStr); $ b8 J# b+ M+ k# z- C$ c3 Q5 G SysFreeString(valueStr); 8 _: P9 z( g: a( m& R f . O* ?7 B% j- G0 f, D1 q9 h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 E3 ]( s6 v. m: G2 v ]2 v
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 t4 r6 y- l5 L7 {! T2 O( U; x) c5 d$ P4 {% k+ F3 v
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2.这是request的程序 ) m& K7 S$ H* R6 k8 ^; `2 M// Request a value from Extend ! m0 p6 X) Z% g7 U" e( y7 [( E' V3 |// 4 G+ _' R& e) D' \; V( t// Initialize the variant that will hold the BSTR. Set the variant's- V8 D% X! S% Y" S# e6 q
// type flag to indicate the fact that this variant holds a BSTR. Place the , C9 i3 Q/ k9 I4 L7 D+ p ~// BSTR into the variant structure.2 ^: I, r) Q }& P3 J2 a3 L
/ g( z9 o& `% W requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 F0 N1 F5 [& a! ]
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* e. Z2 k4 W/ V- l9 _
VariantInit(&requestVariant[0]); 5 F2 y @, @4 W1 r
requestVariant[0].vt = VT_BSTR; ( g, N: ^/ A, B$ F requestVariant[0].bstrVal = itemStr;1 s# P. \1 a7 H' e5 c2 H
8 r( N# b! x7 S topicStr = SysAllocString((WCHAR *) L"system");7 a& V1 n' t* B$ p
VariantInit(&requestVariant[1]); 2 v1 L# Y& n5 q' s1 y+ J1 {) d
requestVariant[1].vt = VT_BSTR;+ e1 [ z* @* |( A+ Q
requestVariant[1].bstrVal = topicStr; 9 ~' E, z% I$ n# q$ I' f! b! y1 m6 J: G/ s6 G
// Set the DISPPARAMS structure that holds the variant. 3 ?6 M- H+ I2 S3 [0 q ! l5 h3 R- G7 |1 M2 D, ? dp2.rgvarg = requestVariant;- I4 o! Z6 T2 f
dp2.cArgs = 2;! h9 O' d" A) R( a
dp2.rgdispidNamedArgs = NULL;: @# q9 p+ T: `5 \' g% {% B+ z( n
dp2.cNamedArgs = 0; , z* W8 _+ E- }9 p) Z. t; H + p8 q( |; B4 k' p5 ?' K var.vt = VT_EMPTY;. g2 f% h; t+ j
2 e9 l) `) e1 m0 u1 e// Call IDispatch::Invoke()+ l$ q( V( K5 r) @
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hr = m_pDisp->Invoke(/ r" n- O9 f0 r0 L3 `
requestID, 5 s1 T7 v6 n# Y7 ? IID_NULL, 8 e4 ?2 j+ I# A, O LOCALE_SYSTEM_DEFAULT, % B( W8 ?6 D4 I& ? h" z# o+ }: ~ DISPATCH_METHOD, & j! } X7 X. n% P2 T6 c& O; W &dp2,# d. M8 ^% W8 g9 @$ V: f
&var, - M: U( M: U% Q. d' u &ei, 8 @. T6 C9 I) U# P3 U& T8 e &uiErr); ) U# h; p' ^( ?/ p# ] 1 [- M; ]0 A* g* U) M' I SysFreeString(topicStr);* x1 E( R/ T! t1 q
SysFreeString(itemStr); , u, o; m% V, v) Z3 @# o请问该程序是获得extend里面的哪个值?! B% O! {7 c; ]1 N
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????