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: 0 k/ c- ^) H, F1 m6 |6 j4 J2 }Name = (WCHAR *) L"Poke"; & V8 z) F/ e1 b" R9 u1 L; { * {7 C8 S" S( F2 M) e
hr = m_pDisp->GetIDsOfNames (7 ^9 d D/ b; ~6 x" u; x
IID_NULL, // reserved ( C9 ]3 n( Y* ] &Name, // Array of names to get IDs for4 O2 H2 O" S- T. V1 e
1, // # of names in the array) ?9 d. D v' K4 n- ~1 s
LOCALE_SYSTEM_DEFAULT, // System locale d' I5 o. M B; Q! g" D& B
&pokeID); // Array of IDs to fill on output ; f3 Q9 L. I6 f; |2 n& Y 8 H y* A5 a* ?) g Y
if (hr) $ \* [4 O0 K+ S- s$ d; @ {; V; v; s+ M8 ~7 N4 u ~$ L
MessageBox ("Get Poke Unsuccessful"); # c q2 m9 ~' i6 i. d9 g return; 5 h, s. \$ V; D9 h7 w8 ? }% F& J% R- G) I# Q5 b( z0 @
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/**************************传递数据给extend**************************************/0 s" Q) N$ h0 {: F+ s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); v( V* H8 I: `( [4 }3 W% h 0 T6 x8 C! S$ Z# w
valueStr = SysAllocString((WCHAR *) L"1232"); $ ~1 B( o/ z+ ~2 b# ?/ H VariantInit(&pokeVariant[0]); 8 D/ ~2 S: b/ ^- C0 g% Z. _) M9 {+ X pokeVariant[0].vt = VT_BSTR;4 @: j n- ?/ P) F! n
pokeVariant[0].bstrVal = valueStr;/ y6 T* m3 }/ m( O
$ h2 [8 N0 v7 Y! [" A" f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# ^9 ~- ^& L/ l& d4 q
VariantInit(&pokeVariant[1]); 0 Q" V1 o- [" K2 o0 J0 h! q! V pokeVariant[1].vt = VT_BSTR; 5 n( p* M7 a& G7 l) f pokeVariant[1].bstrVal = itemStr; ' n) ^. w4 }& f+ y# q1 J o/ P+ K! z 0 Y) T. ^' b, b topicStr = SysAllocString((WCHAR *) L"system"); . I7 [* E$ j" s8 [ b$ p& | VariantInit(&pokeVariant[2]); % v" A9 Z; e+ V' k" n. ? pokeVariant[2].vt = VT_BSTR; " \( y% ]6 V' B3 b) k- d! a pokeVariant[2].bstrVal = topicStr;" q8 l L, _$ n9 T
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// Set the DISPPARAMS structure that holds the variant. - U/ \! r1 |5 A3 T- @7 N- ]8 U/ \ $ ]8 v' ]+ W# e# `2 }$ p2 x dp.rgvarg = pokeVariant;- l7 V+ t3 ]6 }* H& z. ~
dp.cArgs = 3;8 O2 t; G0 [: K
dp.rgdispidNamedArgs = NULL; : l ^( B7 Q. w. X dp.cNamedArgs = 0; ! ^$ C$ n+ s9 T- c8 d6 B! i8 Y e8 B7 D# u5 N
// Call IDispatch::Invoke()7 F/ `; J3 s: I6 Z( u8 Y( w6 ^
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hr = m_pDisp->Invoke( $ C" Z5 T5 t- g9 L" q" a/ E pokeID, # [6 V. k0 t8 _ ~ IID_NULL,! {0 K2 T; X( M# G
LOCALE_SYSTEM_DEFAULT,7 x1 J6 i- `: h
DISPATCH_METHOD,9 i4 l8 S) i5 m# ^; x* j
&dp, O! c5 \" k2 J, p7 F
NULL, 3 ~. p Z$ T5 n: U. ^" n0 @! J7 T &ei, / S' S7 i- m% ]" q &uiErr);1 w& L" ?) ?' W: d; W5 V% ]4 a
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SysFreeString(topicStr);. o& @8 u/ f" V* Q. {4 K! c
SysFreeString(itemStr); $ ^- `( T5 \ r SysFreeString(valueStr);% ^; e( w" K7 N' c: @- j7 G
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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??? ) I) ^4 o6 N# j g5 b3 I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???? ( e9 e$ [3 V1 v ]" s" E2 @8 S: @) s( W! r6 O' L* m0 t
$ T5 ^9 Z" [+ Z: I, J: E8 D- c# o2.这是request的程序2 c B! g( W) @3 x7 L
// Request a value from Extend + p) R" x) \7 E: W c7 B, P! C$ K// + k1 }- j& ]( g! _4 y3 a- @% x// Initialize the variant that will hold the BSTR. Set the variant's 1 ?' r# f: f3 a4 Z! ?9 x// type flag to indicate the fact that this variant holds a BSTR. Place the; ~0 z7 r+ r1 n
// BSTR into the variant structure. 8 E+ k. D {) o- r8 Y% \7 R , d3 B2 `0 ^" f* ?# i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 o7 s. y; \1 g& F: h9 Q
( U9 z/ H& f5 }+ R% f, r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + M# H; j* i3 U" {+ S) R. p; P3 r VariantInit(&requestVariant[0]); 2 J# H8 q* f, Z3 e
requestVariant[0].vt = VT_BSTR;5 C. i& ^! d8 N) j& X- j9 Y
requestVariant[0].bstrVal = itemStr; . }6 g) Y G9 P; l) o$ f* J j- r! S, f! _! s* R% S topicStr = SysAllocString((WCHAR *) L"system"); 8 v9 R2 w' f* v' o: x* U' _& s VariantInit(&requestVariant[1]); $ ~0 ~; Y/ P0 ^ i requestVariant[1].vt = VT_BSTR;1 @) M$ Y: f) |/ C% D; ~+ C
requestVariant[1].bstrVal = topicStr;& s; U( |+ @8 G: n
. ~( Y; m+ H; a// Set the DISPPARAMS structure that holds the variant.: v9 V0 x9 ]9 p$ w: j) M+ S
v B E+ r. M# n0 p dp2.rgvarg = requestVariant; ! j* T$ o4 C/ g8 ?9 z8 c% h) B dp2.cArgs = 2; . A" P& B: R6 n& G/ B dp2.rgdispidNamedArgs = NULL; 8 g1 Y" }, k* X* V( J2 b dp2.cNamedArgs = 0;* B# U# k* b/ F2 N8 J' F% P4 z