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: ; n. p; B2 B* }Name = (WCHAR *) L"Poke";: X, o/ k# x' }' P" B9 r) t
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hr = m_pDisp->GetIDsOfNames (5 \6 _9 E3 ]$ A# ]9 Z
IID_NULL, // reserved 9 U. h5 N) @( [- I4 T! V &Name, // Array of names to get IDs for 6 _4 k% [, ^1 `6 E 1, // # of names in the array " b ^+ X1 L, O l" i, _ LOCALE_SYSTEM_DEFAULT, // System locale ( x! G U4 u1 q &pokeID); // Array of IDs to fill on output 9 `, k- |5 x. E" i' O0 N 1 k( H, x$ ^% U5 M/ l
if (hr) 6 R( t% p, e. ]! c9 [4 q1 v" r { 9 B- g' g; O/ ^* ] MessageBox ("Get Poke Unsuccessful"); , m# d7 P' E6 I) { return;/ c, G' l2 D5 Y' d6 L
} $ V3 a, w% \, S & @) \5 b9 U$ \5 o' G1 h/ F/**************************传递数据给extend**************************************/ 4 k8 d3 I k, ^3 F1 l# L8 C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ F6 g" g) N4 U0 Z/ ]' A
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valueStr = SysAllocString((WCHAR *) L"1232");+ S3 V' j5 p5 ^( w7 d+ W
VariantInit(&pokeVariant[0]); + w8 J) j( L- o0 [& h% r; y2 p3 D pokeVariant[0].vt = VT_BSTR; / }( m0 C! k1 L7 H3 s pokeVariant[0].bstrVal = valueStr; ! K* w+ I2 j- Q' m3 W {- M8 M5 L' x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . e j+ f: v: x( I: t2 K VariantInit(&pokeVariant[1]); 3 n; v2 W; y4 V pokeVariant[1].vt = VT_BSTR; " r# F: x8 Y" v pokeVariant[1].bstrVal = itemStr;9 K# M$ p/ W, w! v( d
! l$ Y5 j |8 t: ]! }# ? topicStr = SysAllocString((WCHAR *) L"system"); 5 G- T5 B' n) j4 z/ v ^1 t VariantInit(&pokeVariant[2]); 0 ~, j6 a |& ~% }3 H
pokeVariant[2].vt = VT_BSTR; + e0 z. [! p" D pokeVariant[2].bstrVal = topicStr; / w5 p ]0 O8 w. m3 l( Z. v& A- V6 A6 ~: Q
// Set the DISPPARAMS structure that holds the variant. 6 `3 e1 ~% s& C- q$ [$ O9 y' d2 }" x8 i! O/ N4 C! \) Z
dp.rgvarg = pokeVariant;9 v3 T$ K% r. z4 D& ]4 }
dp.cArgs = 3; " m* |# @ s s1 o8 {/ d4 ? dp.rgdispidNamedArgs = NULL; ) w- d4 B8 s* t/ k dp.cNamedArgs = 0; 0 E X$ d2 O% E7 ^: ^: }' _& S1 ~- H7 q& u
// Call IDispatch::Invoke() . _5 s1 W! S! E/ m % V- R0 E, Z/ ?( t+ b8 M hr = m_pDisp->Invoke( # J+ ^% R* `9 N. N1 U& k p pokeID, # |/ R; n' _ |8 x% @ IID_NULL,( t4 p2 S; n# J" d* K+ L
LOCALE_SYSTEM_DEFAULT," D0 K, h, s% g; F! N" h' F
DISPATCH_METHOD, # H7 a* H2 {* g# r &dp, : w, h( e. g. U w+ n7 y NULL, : N* |; [0 r! t/ h- o# k &ei, & G4 U3 V I9 {9 Z4 G6 d) W &uiErr);8 Y! Z3 ?: ^. l" j1 {5 K0 _1 `8 n
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SysFreeString(topicStr); ( L; u9 \7 g3 M) L SysFreeString(itemStr); ; u& |. a0 k A% T$ d" \! d SysFreeString(valueStr); ; | Z5 ?7 A' e6 V. D* s7 D& g! Y8 P* ~
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??? . b, S) L( X0 `" ^* r8 r5 H; l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????- ~0 L% g i$ b e. R4 ?
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2.这是request的程序2 |; d, {) t i7 q
// Request a value from Extend! {. n2 n8 C# M7 d( N
//) W3 D. |2 y7 M+ p/ o
// Initialize the variant that will hold the BSTR. Set the variant's) y* S5 D. P$ {! |* u6 L$ I3 a
// type flag to indicate the fact that this variant holds a BSTR. Place the: c+ D& g. ]7 L8 ^4 h* l. b
// BSTR into the variant structure. . O H% O, `$ [2 Q$ b/ d* r% o. |5 ?1 k8 C1 P' J: i
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 n/ }; H$ _- e: x! K# k0 ^- [
: t B0 t4 B/ M1 @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( x3 h9 m- r, {. ` VariantInit(&requestVariant[0]); O- E0 j# d3 P+ l' x
requestVariant[0].vt = VT_BSTR; & E u8 p0 R* A; W6 X! C0 h requestVariant[0].bstrVal = itemStr;/ _3 H% X1 s; ~' r! v' l+ A
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topicStr = SysAllocString((WCHAR *) L"system");8 p q0 W* H9 a. A
VariantInit(&requestVariant[1]); 0 m& C8 C% _* a- [ requestVariant[1].vt = VT_BSTR; , n9 D; F6 z6 f0 a+ B& T requestVariant[1].bstrVal = topicStr; ' x! p& i) z& G0 a1 z 8 A! y, Z W) B E% V// Set the DISPPARAMS structure that holds the variant.2 l' @9 r C& E8 {
$ ^- M$ j+ k& V! Y dp2.rgvarg = requestVariant;6 V5 G A: ` V8 s/ ]1 _7 `
dp2.cArgs = 2; & V, Z6 x* y+ y+ e dp2.rgdispidNamedArgs = NULL; 4 q2 x2 b& n* d @1 Z9 ^ dp2.cNamedArgs = 0;4 U4 o) ^9 G5 x7 y
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var.vt = VT_EMPTY;* \" @. b; T4 ^4 Z
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// Call IDispatch::Invoke()1 ^ V7 \4 m ]- k
3 G; M3 e, c8 J- ^- `( _& s- ^ hr = m_pDisp->Invoke(/ e1 y m: W* f. U- E% B v: j* z
requestID,, A, Z- t( G+ V2 t& g0 ]1 u# {
IID_NULL,3 x9 ]. q6 x( r% I7 }$ I: ~3 h$ v
LOCALE_SYSTEM_DEFAULT, % a2 R6 l* j" n: t* Z. z+ R DISPATCH_METHOD,* A+ S6 H! |# h: Q
&dp2,2 g' }1 t' f9 y5 g5 L
&var, 1 a2 [ e$ G0 m8 G &ei, . Z- e, b, ?3 {% _ &uiErr);: S) ?4 O0 S. i. G: J% \0 O
" M& L! V5 M' b! P3 j8 O SysFreeString(topicStr); 4 j* L. H. C6 v2 f SysFreeString(itemStr);& e% n9 D2 a7 [/ @- ^- t
请问该程序是获得extend里面的哪个值? % V, W) X# U7 V" U) ^9 M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????