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: V/ K, Z' M6 Q: \( g% ~, o z: j
Name = (WCHAR *) L"Poke"; 1 R* c6 R* x. Y ! [" m& o4 M0 u. b+ Q @; _ hr = m_pDisp->GetIDsOfNames (4 r& r0 g5 w- h4 y
IID_NULL, // reserved6 D8 N+ Y1 Q1 C" q& Q" a$ b
&Name, // Array of names to get IDs for 8 a) M' e5 M1 [) Q3 ~8 j% f 1, // # of names in the array + }- ?! a! F- t+ E9 ` LOCALE_SYSTEM_DEFAULT, // System locale7 C: i, n; K3 l! _, A
&pokeID); // Array of IDs to fill on output ' V8 M: O8 Z! C5 e" p1 o7 l 8 o+ w& i4 ~9 o2 t* G1 o
if (hr) ( m: g- }5 r, W7 z9 w2 L {! B. _- E0 H4 w0 A8 v1 |2 v
MessageBox ("Get Poke Unsuccessful"); 9 S5 K. c' B7 { return; / j9 g3 h- ]% c' b9 i. C% c9 o5 H }9 V7 L; _4 l2 _$ n
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/**************************传递数据给extend**************************************/ 4 T; `0 p. M; e$ X pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 L' A. j( h4 i) W6 E6 m+ A
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valueStr = SysAllocString((WCHAR *) L"1232");9 \6 Z( z8 \+ q1 g$ x
VariantInit(&pokeVariant[0]); , w6 o8 s2 t: }2 i% n$ `, d pokeVariant[0].vt = VT_BSTR; ) W+ B/ B! { q: ^! c pokeVariant[0].bstrVal = valueStr;: V% e7 J; g' {" [) O6 N. T8 P
2 F1 o& x# d* q1 h- p: u% l7 j itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 g! ?4 N* m+ w$ c2 e8 l, t VariantInit(&pokeVariant[1]); " g0 `7 b( z" S* U8 W+ p o pokeVariant[1].vt = VT_BSTR;' A! ~2 [4 n8 B3 Q6 E7 s' i
pokeVariant[1].bstrVal = itemStr; 9 a$ j& Q+ k6 v. Q, a" {, j ! {# k. ?: F& d+ m* k topicStr = SysAllocString((WCHAR *) L"system");' _7 v& w. s5 X' J, c
VariantInit(&pokeVariant[2]); - o$ {# m m; ~8 j* B pokeVariant[2].vt = VT_BSTR; + H2 @. y) F+ I D, i2 S pokeVariant[2].bstrVal = topicStr;. {; B/ v/ v5 y1 a0 K) r n/ p$ N
7 }' @) a/ g' v* o// Set the DISPPARAMS structure that holds the variant. $ V/ p" F; F7 F1 s S* `, a % r7 j( }3 N( k2 ^9 J& L dp.rgvarg = pokeVariant; - d8 D& Z; K5 N# i" U, w$ ` dp.cArgs = 3; 2 n7 A3 t H+ {( u/ M- ~/ z dp.rgdispidNamedArgs = NULL;" S n8 K$ B5 q2 x8 n8 w
dp.cNamedArgs = 0; : c8 v" [9 O& x: u: d; S+ ~( w( f2 Q & C F: P" u: x# N) r5 Z// Call IDispatch::Invoke()5 N6 c/ f) f8 A( a1 a
3 x6 [# r2 d" j9 P* B hr = m_pDisp->Invoke( s) ]) d! o, |9 A+ d* ` pokeID, - e& |: y7 i, [$ I IID_NULL, ( h6 ~1 R: E0 R7 C* J6 z1 r6 w ? LOCALE_SYSTEM_DEFAULT,9 n% h2 @1 B1 t) c+ |; v/ u$ i, `
DISPATCH_METHOD, % ]- ]+ G" r0 e) D* r. V2 O [ &dp,- I( { V3 L8 d- z. K2 p- @
NULL, & \. d; P6 |. M5 c$ r# |/ G &ei, 6 d4 N3 P% T1 t- r/ s &uiErr); & `4 ]% E4 W; u % H! _1 _5 j- q D! Q$ w SysFreeString(topicStr); / r& z4 {, O0 d SysFreeString(itemStr);; n5 C* C3 m) B" Z; u4 x
SysFreeString(valueStr);' {1 V. A1 A1 F0 F& X9 u$ p1 |
" D% l( t$ {2 U/ ~2 @0 n; u( l6 Q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???% w' P" r+ Q2 U. j: @3 w
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 d% V" b+ I$ ?! o2 T+ J n. s3 v8 |& K3 r$ A
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2.这是request的程序( @/ D. U4 U! p2 L3 j. n: C
// Request a value from Extend ' L M9 D T5 k4 r// % E. a" w6 s( |+ `! g2 x( E// Initialize the variant that will hold the BSTR. Set the variant's1 X6 r0 w! a+ d+ Z) A
// type flag to indicate the fact that this variant holds a BSTR. Place the/ G, f) ~+ R( y, L% J
// BSTR into the variant structure. ( G& a. o! F; u; s 4 ?8 A5 V, ]2 \2 ]( h- R8 K3 Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , a7 T7 W K. U( a ! q& c6 P7 j1 V3 C1 K' O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & A. ` [- `& {: _ VariantInit(&requestVariant[0]); 5 U/ [" @" W0 I requestVariant[0].vt = VT_BSTR;. M4 f7 U1 ^) h f! O0 w( z8 t4 \) O" Z
requestVariant[0].bstrVal = itemStr;' W. H' t# t$ J% p4 ~, h! n
5 Z/ {) {5 g; { K; e5 u' H4 b9 x, O( t topicStr = SysAllocString((WCHAR *) L"system"); 9 h% O" {- ?, V7 K VariantInit(&requestVariant[1]); 0 o1 Y" v0 l$ o5 ] requestVariant[1].vt = VT_BSTR;) a* C, A9 _5 z g) a
requestVariant[1].bstrVal = topicStr;, P! ?- ?# n4 [. a
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// Set the DISPPARAMS structure that holds the variant. & T: C7 B: E$ ` & Y% g+ h) [/ s$ ~. f dp2.rgvarg = requestVariant; % P+ t1 Q. K5 j+ L& I dp2.cArgs = 2; 6 C4 T1 P" m) R D) t dp2.rgdispidNamedArgs = NULL; 1 {5 U, ^+ }/ _! g5 V1 l# o dp2.cNamedArgs = 0;. p/ b8 [, S7 Z: W