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 @* z- @) j+ j! W \* G
Name = (WCHAR *) L"Poke"; ( N( t6 T2 ]! o% e/ C; w ; P: a( {5 ~+ [% ^( l4 r hr = m_pDisp->GetIDsOfNames () F4 I; T8 |# R& u! t8 F
IID_NULL, // reserved ; ^( K8 G: _4 W3 p' Y2 m3 ?' v o* k &Name, // Array of names to get IDs for7 @. l5 x2 q* h7 p4 S7 G
1, // # of names in the array$ j' r. E- X. C+ Y: W. e. t$ W
LOCALE_SYSTEM_DEFAULT, // System locale4 J, A' P! R/ j5 e. L R: {
&pokeID); // Array of IDs to fill on output " X* d5 i2 I& X8 B - O3 e( w2 b$ i6 I if (hr)' o8 `: ]% d, N
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MessageBox ("Get Poke Unsuccessful"); 6 R& m+ m' l( u; q8 }1 k0 B return; 8 Y# y1 o/ W% a, R! E$ ~. e } : |, x; W: R$ T . e! f! M" H' Q1 e J4 k6 ^5 p/**************************传递数据给extend**************************************/" Z9 X% Z1 @$ ~" q p9 }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 \! k; W; b9 Q
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valueStr = SysAllocString((WCHAR *) L"1232");( L* S4 V6 w6 h
VariantInit(&pokeVariant[0]); 2 f3 K4 B% _9 l `( q
pokeVariant[0].vt = VT_BSTR;- e/ e8 I2 Q" P' s, o
pokeVariant[0].bstrVal = valueStr;, m+ C& s6 d1 X8 u% \- G) X
( |: K& s8 q& c& A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, G9 y5 {# G6 o; c" [* W; t
VariantInit(&pokeVariant[1]); 9 o* @& p2 ]% z# u1 ]3 w$ X
pokeVariant[1].vt = VT_BSTR; $ t" ~! w0 e/ m pokeVariant[1].bstrVal = itemStr;1 `. p6 a9 S2 U7 _" Q, O8 {( K
8 r( W6 W9 j0 f6 w; W, ?) A9 O8 s topicStr = SysAllocString((WCHAR *) L"system"); & c3 c1 e; \% e7 Z6 G- F VariantInit(&pokeVariant[2]); ( c& K7 s x4 H8 [ pokeVariant[2].vt = VT_BSTR;$ C ^ o. V; l: o# B
pokeVariant[2].bstrVal = topicStr;. p3 o3 f& p/ K, X1 r* w! e: w% d
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// Set the DISPPARAMS structure that holds the variant. / O- v4 h! P. ], A, ]% g) @5 y& L: e8 M$ n
dp.rgvarg = pokeVariant; - ?9 u. T/ P- F% ~& k6 F dp.cArgs = 3; : p; z+ {/ v/ k4 ?) ~$ Q/ O! Q dp.rgdispidNamedArgs = NULL;! Q* b' ~6 |7 j L8 Q
dp.cNamedArgs = 0;9 [$ A2 Q* S$ @
: L" E" v' H p8 B// Call IDispatch::Invoke()! x$ ?; `+ M& U, A
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hr = m_pDisp->Invoke( ( B; C9 [& z8 V6 X' o7 I pokeID, 4 {# ^' t( ?) u8 A" l& s IID_NULL, ( c: l e0 p( W4 L LOCALE_SYSTEM_DEFAULT,. L5 C7 x( E I* C
DISPATCH_METHOD, ^5 u+ F; B5 k" v0 k
&dp,9 B; q& v4 r9 K9 J2 S7 Z
NULL, # }! B( n/ G7 q `, ? &ei, 2 r; V- q! `1 B1 I &uiErr); - |8 a3 f( M% O8 ^: ~ 9 {+ x$ L, S( j SysFreeString(topicStr); 5 ]1 A" J& Z1 x) E, R SysFreeString(itemStr); + o+ E) y# [* J; d SysFreeString(valueStr); ; m+ ~# q$ N+ r/ q6 s ! w7 N2 F7 o0 R/ ]. E+ }: V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？？？ 9 l3 e# u" ^& l5 b n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？？？？! M9 G$ m- h; j7 E; a
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2.这是request的程序 5 B ^% \7 q$ e. B3 _// Request a value from Extend 7 d7 y: ~& K# e `! ]# q, u// j# h: J" K' ?$ S' E9 H$ h
// Initialize the variant that will hold the BSTR. Set the variant's% P6 O6 } h& X) N) G
// type flag to indicate the fact that this variant holds a BSTR. Place the + p4 C! N7 e0 n; y// BSTR into the variant structure. * K& }! c; _/ {! u 1 f+ j- u6 u' O1 b8 y( q+ b' a* o requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 G& [" J' ~, K) r! X- \5 x / \! B, A" C0 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 e( I$ ?* T& b* W/ k
VariantInit(&requestVariant[0]); 1 Q: q$ E S l) y requestVariant[0].vt = VT_BSTR; , `) w4 J! v. F8 l requestVariant[0].bstrVal = itemStr;6 [8 r+ d4 |! [
1 a1 d/ z+ t6 q8 M) ~: N; ~ topicStr = SysAllocString((WCHAR *) L"system");8 w9 U* F6 ]) ?: d* h
VariantInit(&requestVariant[1]); " E: J3 e& H* c' M$ v& S requestVariant[1].vt = VT_BSTR;5 `' H6 U( z: h. z7 o$ v9 b& h
requestVariant[1].bstrVal = topicStr; 0 p$ a9 T+ U* J" s. U+ G4 v m6 J9 Z
// Set the DISPPARAMS structure that holds the variant.2 ]8 o% p! C$ ^9 k$ x! p1 e
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dp2.rgvarg = requestVariant;! ]5 \/ L) ]" d1 j8 m4 q
dp2.cArgs = 2; 8 U, P5 q8 S: ~1 F5 Z0 ? dp2.rgdispidNamedArgs = NULL; P4 s4 a; b0 _% l. U& c
dp2.cNamedArgs = 0;% k6 ^4 _0 \/ a, y1 g; r! X
5 W9 Q: C/ L% N9 q8 Z' p# | var.vt = VT_EMPTY;5 }5 q! d0 O1 A# u) `' c# ^/ J
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// Call IDispatch::Invoke() ( L. T0 ?! } B' [- ^3 e' {; V/ x1 v" K% n
hr = m_pDisp->Invoke( 5 b0 z) i0 x# P0 R2 Q. l8 O/ } requestID, + ~: p8 u5 I- R4 P IID_NULL,: i, |6 t# N, w1 ^
LOCALE_SYSTEM_DEFAULT, 7 ~# f! _" F0 a% ?- v- y DISPATCH_METHOD,0 ~# @& j5 x4 f7 ]. y4 ]% N
&dp2,# W' Q; B+ |& H: d9 m3 G, v
&var,) Q3 D5 C, f9 f6 e/ B+ d
&ei,' J' C2 v9 R6 q- U1 f) S
&uiErr);; ]: a8 t) z( x( q" G* Q
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SysFreeString(topicStr); " a( m; o; ?7 M" X: M SysFreeString(itemStr); 0 `9 N) C* @$ H# ]$ _( K* C请问该程序是获得extend里面的哪个值？8 X' K- a3 G0 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？？？？
发表于 2008-11-25 19:37:03
