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:% I# o+ O9 y) k% c% f! j$ ]- u- @4 G
Name = (WCHAR *) L"Poke"; & r! A0 E& r) E1 O ) _, O' C( \- @, m! o! O' {7 R
hr = m_pDisp->GetIDsOfNames (1 ~* z3 [. K- g; z; U( u
IID_NULL, // reserved ( S( K3 J. {# E' _1 ? &Name, // Array of names to get IDs for 2 A" V G: G0 d% V6 f 1, // # of names in the array& h1 l& V8 ^/ @, A
LOCALE_SYSTEM_DEFAULT, // System locale % s+ t- v) b* x# Q' I) e &pokeID); // Array of IDs to fill on output% ~! ]/ e4 H5 @! {- K5 [
5 F% ?% y/ K1 x8 q7 E! E) g, _ if (hr) # w% G- q! C1 }# i. R3 \6 f { $ k1 m3 F9 q9 R1 Q$ E, ] MessageBox ("Get Poke Unsuccessful");6 Y. {# j* {3 t' l7 d! P, A
return;5 _- j8 G# o$ l
} 0 e+ v! b% _, Y0 D7 E9 l7 `& h* b, R1 @' ^3 F+ Q1 p* I1 M0 [4 n
/**************************传递数据给extend**************************************/* B0 A: U: a2 Q, D- ~
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 b L: ^% v" Z1 ?
0 V- U1 h- n0 q- ^6 A/ v
valueStr = SysAllocString((WCHAR *) L"1232");3 J% H8 y4 G, h9 k
VariantInit(&pokeVariant[0]); ~3 H' H4 L% r: c: I+ I+ C2 H pokeVariant[0].vt = VT_BSTR; , L- C8 I* I. b1 D! K pokeVariant[0].bstrVal = valueStr; 4 o0 q; R0 H% D, n& P 7 G( M- ~7 v l. ?% ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 H: m% S e1 d
VariantInit(&pokeVariant[1]); 9 h! O" X* D1 A1 U5 D pokeVariant[1].vt = VT_BSTR;( |2 K, D, @ U2 A" _! F3 p
pokeVariant[1].bstrVal = itemStr; + `8 R) l/ B+ y $ j0 m; i/ _+ G. J2 r8 p3 J- h. c topicStr = SysAllocString((WCHAR *) L"system");5 t& Q8 J' O9 s8 f( ]% \3 R0 X
VariantInit(&pokeVariant[2]); + C4 K+ q& J* J3 b7 E' k- ]7 L1 }
pokeVariant[2].vt = VT_BSTR;) k+ t; E2 C# b' P" u
pokeVariant[2].bstrVal = topicStr;; f8 Y" U6 p3 e1 M+ Z$ L G
' s+ G; t Q( H2 q2 A5 j// Set the DISPPARAMS structure that holds the variant. 4 p- G9 c1 H# ]( R& A# N& u$ p# Z0 i; v" m& ]
dp.rgvarg = pokeVariant; 8 f: [) B% L3 f& B% ^7 T dp.cArgs = 3;+ s9 m$ Y) B' h; J6 U8 e
dp.rgdispidNamedArgs = NULL;% U$ A% j3 P8 b) u' [
dp.cNamedArgs = 0; , Q! {; P" ]/ E U }$ i! Q+ ]8 `' n. N% \
// Call IDispatch::Invoke() 9 i# @2 L. i3 `1 Y! E$ x9 B' J ! w8 b) m) b u7 \ hr = m_pDisp->Invoke(9 V, Q( D2 W ]3 U
pokeID, 4 U$ c$ p) @- j- A( B& |! R# [ IID_NULL, 0 f9 A- `) `, V0 E$ M0 b LOCALE_SYSTEM_DEFAULT,& b4 C, O+ Z0 i# W; M3 t
DISPATCH_METHOD,/ x5 }: o6 x; \: p* E Q& B! }+ `
&dp, % b; C4 P" P% E) a9 H& | NULL,6 n, @7 P7 f& B5 @# h) a
&ei, * z6 P# c/ e7 h. m* X &uiErr);6 x4 X1 ^: C! T$ [
2 o; z2 r7 Y( `* {" D
SysFreeString(topicStr);+ I3 I& s% J; ?& n- n) x9 {
SysFreeString(itemStr); ! b$ s4 H6 z/ p# x% e4 u4 S SysFreeString(valueStr); ! _. U" P: a, k$ {$ r( T' N! C( B' Z: u* l; U6 z) h; R8 [6 V
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; I- f) P7 p& u; e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???? 6 \! {5 o- w) q+ d7 P& O; V0 q# ]' P1 x. n' J2 @4 ]1 Y4 \. e
4 ^. Z( g/ {" E; {5 ?
2.这是request的程序 ! \8 L& b- P0 Q O7 G// Request a value from Extend; A2 v/ M; Q& T% S
//2 i1 ^8 x5 L* u3 K' }
// Initialize the variant that will hold the BSTR. Set the variant's 2 B4 g s3 |( O( J6 h6 i1 g- U9 C0 B// type flag to indicate the fact that this variant holds a BSTR. Place the 1 U# l: `; a* g- r5 m// BSTR into the variant structure.+ o* ^& G8 i0 \0 {/ U/ k* E
% N" C9 ~ E. j/ R/ n6 b
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& E2 D; D9 v _( b+ E: R* b% K
% l9 z1 d3 h! x; Z2 L
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); # F/ R, f D% J$ }+ E9 o VariantInit(&requestVariant[0]); 0 q& L7 S) M" O3 P/ f7 r
requestVariant[0].vt = VT_BSTR; : {3 X2 D) O+ F: M! m: c requestVariant[0].bstrVal = itemStr;1 L( Y7 r9 E: M% {
2 w) ^8 o# u( r) w topicStr = SysAllocString((WCHAR *) L"system"); ( M/ H) v2 S4 Q2 O- ~2 c1 ` e VariantInit(&requestVariant[1]); 9 v6 n7 _, y7 S9 [; O) L
requestVariant[1].vt = VT_BSTR; 7 y9 Q8 H8 n5 b: _/ u9 m requestVariant[1].bstrVal = topicStr; + i' [* d9 Q% Q0 J& Q6 f 6 m# V. i+ \ I// Set the DISPPARAMS structure that holds the variant. 9 Y7 Z' {# J: W. {* V9 U ( q3 Q: c d7 h& [. a dp2.rgvarg = requestVariant; & \8 j1 D+ q/ X" J! s8 n dp2.cArgs = 2; ) O8 e. s" T0 \ dp2.rgdispidNamedArgs = NULL; - N: T' n1 M6 Z( X& I dp2.cNamedArgs = 0; ) \. Q2 o$ [# ^) x7 D. @) ]0 F' d; R/ z- ?4 ~3 q. n
var.vt = VT_EMPTY;. w1 u, @3 s( E+ O% @
, L! u8 h4 j+ C' _5 [0 O1 A
// Call IDispatch::Invoke() % F2 P/ p9 z2 p: _* F% R( b- \' I; `& ~
hr = m_pDisp->Invoke( , L: t' ?5 ]! _! e requestID,/ f" V% J, q" a* W9 n
IID_NULL,' q3 v, A6 S# n$ z) p9 a
LOCALE_SYSTEM_DEFAULT,: ?1 N8 g" t0 ?6 e/ q7 D
DISPATCH_METHOD, & M& ~2 x8 }- W- v &dp2,+ ~6 f4 M t6 |$ Z
&var,+ j4 ]! ?7 ~" O9 I0 h+ \
&ei,. S5 c+ N5 j$ f) P6 h
&uiErr);. ~& d5 A9 B3 A" O h( j/ |% ]