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:" B7 c# r0 y4 U$ r. W7 Z: |
Name = (WCHAR *) L"Poke";) O8 l v" Y, }; m! a
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hr = m_pDisp->GetIDsOfNames ( - y' V3 V* q. k7 R8 {6 M) y& f7 g; A9 M IID_NULL, // reserved4 C; r; R( V {
&Name, // Array of names to get IDs for + A7 H9 @4 W/ r& _0 ~2 ]( N' {, _ 1, // # of names in the array 8 Z# q, _( |# C3 J) T LOCALE_SYSTEM_DEFAULT, // System locale$ p9 i9 `2 ~; A4 H
&pokeID); // Array of IDs to fill on output8 ?5 h+ }5 u. k; H* @, M+ W
8 ^6 K3 z* z" m if (hr)+ h1 `. V- X# F
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MessageBox ("Get Poke Unsuccessful"); 9 @ x: v, E* ` return;" l# z% J2 S! x& s+ M
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/**************************传递数据给extend**************************************/2 R: [2 a) I, m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 s3 G- X9 ?4 E1 g; Y5 Q( q! _$ Z
- @& n8 Z7 O/ A4 q) G& ~. \ valueStr = SysAllocString((WCHAR *) L"1232");" v( C" D& L. l" k" B0 `
VariantInit(&pokeVariant[0]); . ?# u! _4 x/ K2 ]; W
pokeVariant[0].vt = VT_BSTR;3 {1 H! ]3 ` n3 E. p& ?: v8 U, ?
pokeVariant[0].bstrVal = valueStr; 0 ^6 k& y3 L: Q. u0 p$ N* K 1 A$ f. k5 [& i4 m% C itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 y3 D9 E/ \; X- I: i VariantInit(&pokeVariant[1]); 4 W3 F5 ]$ z- J8 V: G" ]. T
pokeVariant[1].vt = VT_BSTR; 6 V1 {. u% ]1 B6 f" A pokeVariant[1].bstrVal = itemStr; & `6 e8 S. }1 t5 l) R+ |4 C* `1 r0 C& r3 b9 e& h" m
topicStr = SysAllocString((WCHAR *) L"system"); , H" U7 k, z5 ]: P, W VariantInit(&pokeVariant[2]); # R+ ?& @1 T1 v: [% M( E" L5 i
pokeVariant[2].vt = VT_BSTR;7 X# ?& J9 Q0 _
pokeVariant[2].bstrVal = topicStr; 8 q, ?2 @ |( q; g- Y) O' A b9 k9 \0 O* X7 d' C6 z// Set the DISPPARAMS structure that holds the variant. ; e0 I! R$ r& X& o9 X' h6 C* c2 ?* M: H% g) R
dp.rgvarg = pokeVariant;& ^$ v/ u, w7 ^8 Z# g
dp.cArgs = 3;. Z/ Z. r% g R L6 v9 V% h
dp.rgdispidNamedArgs = NULL;/ c% _5 Y& O5 J. Z4 Z
dp.cNamedArgs = 0; 2 a/ E3 h" v7 B6 r* H. M; t' g/ G" y+ Z1 U! b3 h/ E" j& S
// Call IDispatch::Invoke() - r: Q. A" v6 v3 n3 x/ V # c1 X! C* i# O3 ?1 d' l hr = m_pDisp->Invoke( o3 ~8 r, M, q! `! j pokeID, ; \1 q* c' p6 |4 e- u! r IID_NULL,1 M& C) T8 ]; K+ t5 t
LOCALE_SYSTEM_DEFAULT,* F! b, v% d. W+ j8 X! a0 ~
DISPATCH_METHOD,' U) H! f! e! d: {1 \2 g, M# a
&dp, 2 ?5 p% ]5 t4 X NULL,3 m) t ?6 O, Y3 U$ q
&ei, ( k; r0 r" _+ A( F) c &uiErr); 4 S9 \/ Q: Z. G! h* C; |7 `7 E L7 @& p, \$ _& j
SysFreeString(topicStr); 7 t! N) s0 I. _. ~. I SysFreeString(itemStr); * } d, M( a3 ?7 d& C" _ SysFreeString(valueStr);. Y5 q) g( d- |8 z
0 a) }( G& l W, o2 Q; g2 C% `1 }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??? * i; j7 F3 D. o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 M; m) N" V# z: z
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2.这是request的程序 % {8 U; b3 R4 Y/ Q1 j$ H, _8 Z// Request a value from Extend; P" i& o# Q5 a: d7 V7 e
//, U+ s) I+ I8 E/ Y8 n' w$ T8 u
// Initialize the variant that will hold the BSTR. Set the variant's 3 D' l1 o; h) v- m. l4 k) m3 Z// type flag to indicate the fact that this variant holds a BSTR. Place the 6 W! U! s1 d% _3 w// BSTR into the variant structure.* ?6 R( W$ y, C
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 T0 J2 P/ a1 l, a& d
$ [( J# H# X( `0 a& U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 V' ]8 }6 g2 T) G2 Y) |" d! d: ^
VariantInit(&requestVariant[0]); 2 a Z( `5 V q. x
requestVariant[0].vt = VT_BSTR; ; g7 }+ g8 w' `3 ]/ p requestVariant[0].bstrVal = itemStr;2 G ?8 v' H% _3 h0 Y
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topicStr = SysAllocString((WCHAR *) L"system"); ! ?9 H7 V. X( L3 T5 T VariantInit(&requestVariant[1]); " r7 \4 m& c. L+ J requestVariant[1].vt = VT_BSTR;/ W/ R4 \2 z, R1 Q9 }
requestVariant[1].bstrVal = topicStr;- J% }8 O1 t7 P* l
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// Set the DISPPARAMS structure that holds the variant.8 {- P# A+ F/ T3 \0 T
" D0 w, a/ s, [' J* m dp2.rgvarg = requestVariant;5 Y" R( ]6 X8 d" R7 P
dp2.cArgs = 2; 0 O) N3 R1 P1 R, w dp2.rgdispidNamedArgs = NULL; % _- r. A5 `; a# o- P: j/ E' C! w dp2.cNamedArgs = 0;+ |1 M7 P4 h8 u v4 q( l$ e/ s
6 j, p$ c# q l! K$ S( W var.vt = VT_EMPTY;) q* q" ^( p: b3 a. Z