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: ; j8 q% l+ g# U& k' HName = (WCHAR *) L"Poke";7 p7 e) p; _! N) S& w3 ?( E& b/ ]
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hr = m_pDisp->GetIDsOfNames (- I+ k$ P; {; d4 }$ ]
IID_NULL, // reserved4 w" a0 z" j0 h P2 ]# Y0 r6 y
&Name, // Array of names to get IDs for4 ^, k% |" O( X% w9 A9 F
1, // # of names in the array , C' J7 L1 e( j, O1 f3 F LOCALE_SYSTEM_DEFAULT, // System locale 7 u8 e U+ Z( w0 I6 g &pokeID); // Array of IDs to fill on output: H/ G: I% V1 w! T# y; I J! \) Z$ p
, P: z' o- ~+ ^% Z! R) N2 w* l if (hr) p: x* T$ ]: C3 x; W2 I
{ 0 u* w* {9 w: p! D MessageBox ("Get Poke Unsuccessful"); # u( `! u/ I" h }4 k1 k/ w return; * [- [/ i% P# e* {& }: H0 Z, x5 N. U }+ `6 O: h, ]- i
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/**************************传递数据给extend**************************************/ 9 E8 O. a, h5 W. _3 P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& i8 b! D, |% ]+ \
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valueStr = SysAllocString((WCHAR *) L"1232");3 u2 v; X* o+ b2 Q
VariantInit(&pokeVariant[0]); g% @$ ^+ t/ H- c4 G, h pokeVariant[0].vt = VT_BSTR; - q" t8 x2 \! X9 _. \5 Q. o; {3 } pokeVariant[0].bstrVal = valueStr;! r& G! I( X! f0 D$ m: `- C
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 `3 j6 J/ y1 J4 l2 V- b* c- u- Q VariantInit(&pokeVariant[1]); / ^4 _) I& e* H+ \: {* L5 i8 l- r
pokeVariant[1].vt = VT_BSTR;" C# P( o/ j# G. x" p
pokeVariant[1].bstrVal = itemStr;9 T3 F+ w: w! V8 x
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topicStr = SysAllocString((WCHAR *) L"system"); 0 j7 T; Q( i) o, W- E: Z VariantInit(&pokeVariant[2]); % E8 r5 Z9 |$ Q5 D( Y pokeVariant[2].vt = VT_BSTR; # y! z/ f/ m9 W/ ?$ P0 ~( U D pokeVariant[2].bstrVal = topicStr;! \3 i& {! U" f
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// Set the DISPPARAMS structure that holds the variant. 6 z7 i- E! Y. p ! Y4 s ?$ o/ Y0 l! l3 v dp.rgvarg = pokeVariant;0 s1 D; z! F; ?+ M5 {
dp.cArgs = 3;" Q( b! w8 K! E' v+ Z4 y# F
dp.rgdispidNamedArgs = NULL;7 A, g0 I( @# z7 p
dp.cNamedArgs = 0;* }; E% D5 L* G
+ O# k9 [" g* d, Y// Call IDispatch::Invoke() + q# X. y0 P: c' E8 t: Y & _( x* R$ T- p- `+ E) l hr = m_pDisp->Invoke(( ]& E- J( P1 {7 C6 d4 }2 V4 G+ X
pokeID,# _# U7 R. W3 ~& q5 i# o
IID_NULL," ?3 m3 `8 l" h0 y
LOCALE_SYSTEM_DEFAULT,3 \. b) i" c4 x7 l( y9 X
DISPATCH_METHOD,( I8 d# ^8 w9 d
&dp,, M, s/ o0 d1 ]3 ?
NULL, 9 L! P& U, P' G' Y% U M &ei,7 L8 ~$ ?7 q ^& ~; J
&uiErr);9 p f/ _" ~& d- F! Z+ U
/ w: W$ g' b) V( b0 Z SysFreeString(topicStr); . \" W I* } W) T6 D" a6 F& E% G, R SysFreeString(itemStr);# h; n$ D# e( V6 w
SysFreeString(valueStr);4 v0 X9 [) Y, n% \$ r
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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??? - x% H- B3 b W1 q4 K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????4 s8 P+ L- v. p3 e. c
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2.这是request的程序7 _2 w) _0 }) r5 e
// Request a value from Extend / U' p2 [+ ^3 h//8 C5 V! {6 Q( v6 v, Y
// Initialize the variant that will hold the BSTR. Set the variant's% \! J7 i* \( Q
// type flag to indicate the fact that this variant holds a BSTR. Place the * @) E6 R' M, F* K3 q2 w// BSTR into the variant structure. x8 C! q4 C8 b: Z7 O6 g; M9 e i$ w# o9 W2 |( y# R
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);/ N1 ]1 x( A5 u% _+ q3 X! I$ Z
& `+ t9 g/ M q/ n7 m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & F5 L1 \& d# j' @) u VariantInit(&requestVariant[0]); / v/ H; \2 a3 h8 Q Z, ~. Q requestVariant[0].vt = VT_BSTR; 9 \7 E8 m+ @9 M' y' ] requestVariant[0].bstrVal = itemStr;$ U9 |8 h1 s2 ~- b1 A. T
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topicStr = SysAllocString((WCHAR *) L"system"); - G- T2 \3 j, K* g5 a/ J( ~, w VariantInit(&requestVariant[1]); 2 b+ s- b9 a) Q+ y9 Z/ v requestVariant[1].vt = VT_BSTR;& p/ K" A. Y" ]
requestVariant[1].bstrVal = topicStr;; `, V7 \ r n0 q k" S' b
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// Set the DISPPARAMS structure that holds the variant.9 F$ g f0 \% W3 O! k. _$ ^- {8 I
8 f/ K- P( v ~, s, {: N$ h" W dp2.rgvarg = requestVariant; 3 P9 y; s* {; B: k. Y% Y7 n* a dp2.cArgs = 2; ' F' }1 G, G: ?# u5 C- `* ?* _7 m5 t dp2.rgdispidNamedArgs = NULL;# F0 }: D; J; C; n
dp2.cNamedArgs = 0;& S1 t# T/ Q5 E$ _4 T4 f
1 H5 }' o6 f: t0 x* t! _' M, H var.vt = VT_EMPTY; 1 W6 ~" x& U& O) k# p2 T 1 I9 S7 J$ k, h: j// Call IDispatch::Invoke()1 m Z! ?# m5 z m
$ |6 K. V' \1 v6 x9 p hr = m_pDisp->Invoke( + t/ h4 R( `: {2 ^' r3 i requestID, 8 N8 e+ Y0 @, v! g" a IID_NULL," C5 y' w# w* D5 d
LOCALE_SYSTEM_DEFAULT, " m4 \' F; O! F; P) b DISPATCH_METHOD,! W' }2 {5 [2 T. U
&dp2, 9 D; C' `& c5 f) j* Z5 v* s1 V' N- g &var,( W% u, u% S4 S
&ei, $ f' h5 U0 h- h( p* x+ r& ~- J &uiErr);! D% w) v6 y. Q5 ?7 O6 i3 g
3 Z. h4 u0 C8 a7 X& K/ N SysFreeString(topicStr);/ A0 O* W4 [/ C, {
SysFreeString(itemStr); h7 v$ o7 \4 a' u请问该程序是获得extend里面的哪个值? }$ w# L# [. Q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????