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: ' c5 S! D, K( }8 v- E7 F( a) pName = (WCHAR *) L"Poke";8 n, U5 B9 C3 ]+ c) U
" c" M( S! s1 W3 Y1 _3 C9 H( X% @" _4 T hr = m_pDisp->GetIDsOfNames ( * p- ~+ Y' t4 d* q, r q0 n IID_NULL, // reserved 9 y4 Y: x2 }7 G# g) E. v! Q& R) N) S &Name, // Array of names to get IDs for, |! k$ w0 c' j* k X
1, // # of names in the array* I' A3 o0 J2 i9 `) P! a" W
LOCALE_SYSTEM_DEFAULT, // System locale 7 a2 ] s: ?" I9 i2 T &pokeID); // Array of IDs to fill on output: u9 ^3 i( d2 t' K, J
p N! e4 q( }% U if (hr) " P( L) K- ~; r7 f { " m& I% f/ s1 c3 o+ Q' Y) e MessageBox ("Get Poke Unsuccessful"); ) ~3 i2 F# e4 p1 x# Z0 h return;2 _; }0 x+ v/ M( g" i6 w5 r
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/**************************传递数据给extend**************************************/ 6 o8 ~" a3 s1 Y7 n2 u2 t) Y) A+ [ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ z2 ]3 F% l# @6 ]$ V1 p8 ? ) s4 m( ^0 ?" a+ x valueStr = SysAllocString((WCHAR *) L"1232"); ( C+ e' N4 i, O5 v VariantInit(&pokeVariant[0]); ( Z6 {1 A9 c* x" l9 d pokeVariant[0].vt = VT_BSTR; 5 P' G% e$ h! M9 f: ]' E3 Y+ Q pokeVariant[0].bstrVal = valueStr;7 Z! B" n" L0 D2 o& j }$ _
* @ z" R v, @/ y# X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 I% Q/ j, D' q5 P7 b" D VariantInit(&pokeVariant[1]); / m- ` P* L) N6 R pokeVariant[1].vt = VT_BSTR; . n. {9 u: _2 B1 _" n pokeVariant[1].bstrVal = itemStr; # E( G. h+ z; A8 v: ~* W $ x0 o4 F8 a0 T% m1 k/ T topicStr = SysAllocString((WCHAR *) L"system");0 N8 m! E* r l2 b8 E% A" `
VariantInit(&pokeVariant[2]); ; I, V2 C6 G" Z# Z) e pokeVariant[2].vt = VT_BSTR; + \+ }, b3 @3 T pokeVariant[2].bstrVal = topicStr;: V9 T' L! a8 O! H# k! k9 ^
) m* B, r- D& c* o// Set the DISPPARAMS structure that holds the variant. , u$ o' V- z5 F' f5 w# E: L/ C% Q: f7 o- u& P% T
dp.rgvarg = pokeVariant;. N& [5 j, s0 y& o# y$ J0 d
dp.cArgs = 3;7 n, e9 C1 \ c" r( g J* N o: O
dp.rgdispidNamedArgs = NULL;* }1 C9 s" h% |2 l
dp.cNamedArgs = 0;, J% C# B8 Z+ W
4 q8 f/ C4 I _5 _// Call IDispatch::Invoke() : a# H1 o" d. @* k* p' e " ?- l% I# @3 k. B" V" x: N hr = m_pDisp->Invoke(9 }2 ]( {$ Q6 c$ G. Y
pokeID, - K4 ^8 O A. k" v' N4 w I IID_NULL,( [% S4 e7 z. W" w9 v0 F: l/ p
LOCALE_SYSTEM_DEFAULT, 5 v9 d9 i& J4 b0 \ DISPATCH_METHOD, # J2 Q7 z+ x# }; I &dp, ' U+ g8 \3 u" m# ^" U NULL, ( ^5 ]7 C v3 s. s$ R8 s+ X &ei, 1 _2 n2 a' S% R# J! s# {5 N &uiErr); - r3 v/ X2 p) {6 m3 a2 k. e! |3 S4 Q! m+ r' W5 S; S! k. q
SysFreeString(topicStr); 9 l6 @' G' u# u SysFreeString(itemStr); 2 y* T$ r: j2 p% Q, E( C- p6 S SysFreeString(valueStr);; Y3 }8 c' y' t: a4 m
& H. w' d% i% m5 q# i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???+ e/ d X5 b: Q! 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???? 9 o" V) G! g/ J d! O/ R8 w9 f+ ^3 x6 u
2 d3 ?( p. t/ B4 g* u/ U- L2.这是request的程序) X: P1 h: y2 Q, o
// Request a value from Extend ' ]+ e( r3 f$ r! @* k. @//& v3 X9 T! q. N
// Initialize the variant that will hold the BSTR. Set the variant's 7 s( @+ ^) P- s8 x+ j }7 o* O// type flag to indicate the fact that this variant holds a BSTR. Place the * A9 O& I! G% c// BSTR into the variant structure. 0 h/ V! L- R5 |. F' l) l- _ ) }( O2 f6 ~* A7 c/ j$ V requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' y$ h- U9 K5 G1 I9 c: E( A. h& k 4 @) H) y( }2 v2 `6 T- b. d
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ r& U6 I) V. N- G# G
VariantInit(&requestVariant[0]); 3 l- P5 b# @+ V) K l# L5 F9 v* a
requestVariant[0].vt = VT_BSTR;- r7 I6 \5 e$ N" @5 A5 C- y6 B
requestVariant[0].bstrVal = itemStr;: ]0 N4 J- C! T' i) c7 j4 v1 s1 w
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topicStr = SysAllocString((WCHAR *) L"system"); 7 f3 \8 z- X: n0 B VariantInit(&requestVariant[1]); $ h' A% t5 R) f/ f: `" O
requestVariant[1].vt = VT_BSTR; ' `( x0 `5 p; Y8 F. } requestVariant[1].bstrVal = topicStr; o" T. \0 g8 s% B4 r$ j3 G: h9 y5 a' w
. f% q% i; H& A' a, w* H// Set the DISPPARAMS structure that holds the variant. ( m6 y S+ o, d* j5 B2 O0 C) A$ ?* _/ X$ U z( c+ e8 @
dp2.rgvarg = requestVariant;. L9 x$ {# Y' _
dp2.cArgs = 2; : G ^1 g) \3 j$ C4 z! V# \0 Y& @ dp2.rgdispidNamedArgs = NULL;# e7 m0 J+ Y! Y5 R+ n% I) h
dp2.cNamedArgs = 0; * j7 |: j; D- n5 ] ( i% [/ j1 Y- ?7 ?4 I' G' n var.vt = VT_EMPTY;/ I1 s0 p# O3 B$ F: R
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// Call IDispatch::Invoke()3 p2 ?$ @% N8 z2 x, k
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hr = m_pDisp->Invoke( 9 F+ k) w+ @0 o7 p( C requestID,6 G4 B7 G3 a5 K
IID_NULL,9 W" H4 y% B- j
LOCALE_SYSTEM_DEFAULT, 1 H2 n! Z8 h, _0 }; W! w9 O& C L DISPATCH_METHOD, 4 [3 p( \+ a @( g1 w$ @" {. C &dp2, 8 x! \4 d' p) k/ z% g &var, ) W9 j; ] d, Q &ei, 3 j* I( |4 ~+ \" X! R0 n8 {6 r) | &uiErr); ( U" _" S% `7 e' E! n; D( ?4 Y) {- Y3 n6 W7 e% ~- k! r' c
SysFreeString(topicStr);) w0 [' v* c: C: y# G* C9 V! V, x/ a
SysFreeString(itemStr); & @9 v# c/ d4 @ `3 I" j; H$ |+ n请问该程序是获得extend里面的哪个值?& z9 ?5 ]; h/ I6 `6 ~8 R0 b
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????