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: ' Q5 P2 w! X2 Y" FName = (WCHAR *) L"Poke";! \. S. A8 z# w) M2 C
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hr = m_pDisp->GetIDsOfNames (% [1 p/ h. S0 v" k& T5 Z( i/ e
IID_NULL, // reserved! }( W) Q% V! Y) [5 g: n1 b
&Name, // Array of names to get IDs for 4 \' K5 H. E5 N 1, // # of names in the array3 d3 z3 m7 e; |0 a) b$ g
LOCALE_SYSTEM_DEFAULT, // System locale . s+ E& H" P0 a2 c9 k; U &pokeID); // Array of IDs to fill on output2 d! D' U) B- w' C& g! [! m
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if (hr) 0 U) |- v( J/ \! W- `" F7 k { ' s. Z }" f. S+ @# y MessageBox ("Get Poke Unsuccessful");) a. \9 @4 Y4 S- R) S
return; 0 ~4 \2 B5 V( j- O$ K) ?( N }9 d8 o( x' K; ~. O0 m# N, ]
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/**************************传递数据给extend**************************************/ 3 D8 w( W9 O" F3 P e9 p0 {; s pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 X7 C, ^7 ?1 g
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valueStr = SysAllocString((WCHAR *) L"1232");2 |6 e5 A3 D' |; W$ E& d, c1 ?
VariantInit(&pokeVariant[0]); ' h: F7 N" F: e! o
pokeVariant[0].vt = VT_BSTR; ! e0 ]- j, Q; V; D9 u3 Z8 I, w pokeVariant[0].bstrVal = valueStr;. x( i+ V+ n) Y" h2 i
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( o8 d3 v" Q: e7 ? e( E VariantInit(&pokeVariant[1]); 8 s0 v: L" ~% d! L' O1 y' ~ pokeVariant[1].vt = VT_BSTR; : S4 q9 o: ]+ ^7 I$ F) } pokeVariant[1].bstrVal = itemStr; % f/ G: K" C. N6 |4 |$ @' q, t: i7 ]- d
topicStr = SysAllocString((WCHAR *) L"system"); 6 E- F) m' E: `' ~4 { VariantInit(&pokeVariant[2]); 8 h' H9 P& g0 c- ~& { pokeVariant[2].vt = VT_BSTR;5 J& m- b1 k9 r2 C
pokeVariant[2].bstrVal = topicStr;5 D3 @+ ~) p; V# n: u2 ^6 o. k( K
1 u+ x) ~+ O9 \; g, [$ i# T// Set the DISPPARAMS structure that holds the variant. : T% h# _2 v1 i, B 5 N i" p& Y2 N. u( } dp.rgvarg = pokeVariant; z+ g5 q$ V+ S0 T) g: _* G' e
dp.cArgs = 3; ! A0 z- _: ?; L' r; ^& I dp.rgdispidNamedArgs = NULL; ) m8 h6 G) o6 x N) s* `% O dp.cNamedArgs = 0;( p9 T% q' ?* m5 j- q$ w
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// Call IDispatch::Invoke() # [9 l8 s7 o/ ? 4 q" ^, e$ c( V$ u2 v, g hr = m_pDisp->Invoke(4 b- p* L- E Y& y/ e
pokeID, e" U0 ~0 B5 ? n/ S' ~ IID_NULL,1 ?% H9 i0 O; k7 H$ Y, E
LOCALE_SYSTEM_DEFAULT,6 S+ c4 n0 z" a6 y& D* X8 i
DISPATCH_METHOD, 8 [3 e; [- C7 k( B9 U( F8 I0 I &dp, 7 Y( H" D) [0 _/ Y R! r' Z NULL,+ B4 q; I; ?0 s4 @ A+ s/ l
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&uiErr); 3 o, d" v, j( |! t9 o 4 l, r0 `* M' b4 V) h! z2 i* k SysFreeString(topicStr);8 `. a s' B- ?$ ], q0 r. o
SysFreeString(itemStr);+ `* Y/ q( ^! [3 @1 F8 d& Q( m
SysFreeString(valueStr);2 G$ @# p7 H* G; l) _ Q: }
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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??? $ r, s5 f2 i2 a2 a! D. c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????3 X; v @, x; G7 r) t
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. F/ _7 j+ @' C; s) U5 k0 G0 i2.这是request的程序: _6 h6 L4 _& P. W/ Q/ o
// Request a value from Extend 7 U$ }9 |! Z+ a" v// ) A/ D0 H7 {+ P" I// Initialize the variant that will hold the BSTR. Set the variant's* z2 @4 B+ A& Q4 L2 Y: B. ^" w
// type flag to indicate the fact that this variant holds a BSTR. Place the& {+ M* F q/ a" D
// BSTR into the variant structure. ! V. g$ a) D& l2 K& @8 K! l2 }6 i$ J4 `2 S( o4 y$ g* `: _
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! Z# W4 i( K5 ?8 W% _
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% ^* q1 S( ?3 I. l
VariantInit(&requestVariant[0]); 3 d1 T, J. ~, |' r# E requestVariant[0].vt = VT_BSTR; & b2 W+ l6 N! z requestVariant[0].bstrVal = itemStr;7 v* Z, g2 k# m$ U# w9 t
: j3 @" ]8 @) l" V# q topicStr = SysAllocString((WCHAR *) L"system");. i3 ^- R" o+ ?9 y$ z9 e+ m$ ~9 j
VariantInit(&requestVariant[1]); / m( v6 q: N7 \) q
requestVariant[1].vt = VT_BSTR;( X" h- W4 {; X$ _1 h; Z( l
requestVariant[1].bstrVal = topicStr; $ I: |/ s! _$ p- S% s+ c9 S ! h# F1 V; D7 J// Set the DISPPARAMS structure that holds the variant.1 o1 t6 v$ X' K! P- S