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: ) C% e8 A! S w& wName = (WCHAR *) L"Poke"; : q) {. t0 G% f# u+ m6 ^ 5 O6 E/ X3 n" V5 \6 ~ hr = m_pDisp->GetIDsOfNames (! F0 V9 U$ x$ k5 W, g% D% v
IID_NULL, // reserved" c/ B) G* \0 g9 c& z5 d. t
&Name, // Array of names to get IDs for 6 I& ?% o7 f! n9 M( ~6 I9 E 1, // # of names in the array7 P3 J0 B+ }7 ~* n- ~
LOCALE_SYSTEM_DEFAULT, // System locale + E/ I1 @0 v+ I0 M7 B. @) { &pokeID); // Array of IDs to fill on output( d& A' y. l, f
G( T4 O9 u+ w1 q7 { if (hr) 9 j W6 r! B0 u' u/ n( G { 9 b# J. m4 v2 C7 O$ B6 f2 H MessageBox ("Get Poke Unsuccessful"); $ B" V' X- O" `; Z: f8 b3 u9 _) C return; ' m! Q0 F* o, X# u8 U# S }1 l9 ?7 Y* h* B) L# h* K- x8 g
/ P/ a9 i3 x+ `/ B6 I/ J. B% P: H/**************************传递数据给extend**************************************/ 7 v5 ?% m( V U6 s @/ D pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# K) u5 B% p7 H6 b7 @9 I, g" o
4 n* l5 k. @: ^- r ]/ i1 O valueStr = SysAllocString((WCHAR *) L"1232");3 d0 J4 z* R2 a# }, T+ A0 N; i3 B
VariantInit(&pokeVariant[0]); . q" Y ~% W9 J' ?
pokeVariant[0].vt = VT_BSTR;# k9 x$ y! y- u8 }5 b- s1 L
pokeVariant[0].bstrVal = valueStr; ; _. K% G, f+ [' W% q. v 8 Q9 S5 A1 P$ P8 B; T! M1 r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! _3 v, Y7 B0 ]1 Q' q VariantInit(&pokeVariant[1]); : Q' V4 N/ g9 g1 d8 w pokeVariant[1].vt = VT_BSTR; O' T7 {1 _! k* A4 m) B1 q
pokeVariant[1].bstrVal = itemStr;) y/ Q; M" i* z1 H0 A# w
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topicStr = SysAllocString((WCHAR *) L"system");! d' }3 `: \( F6 C
VariantInit(&pokeVariant[2]); 3 k# H$ ~6 y* P
pokeVariant[2].vt = VT_BSTR;1 ^3 \% \: p8 K
pokeVariant[2].bstrVal = topicStr;" s* O0 W+ d+ `) s3 J& i, v
z1 W: r2 Q. j( G
// Set the DISPPARAMS structure that holds the variant. ( X% E( ?9 _9 z, l) T . q4 j' M8 v, r Z dp.rgvarg = pokeVariant;! A: f& n/ Q- o6 ~
dp.cArgs = 3; 7 }2 g$ f$ v' L# n, n& H$ i dp.rgdispidNamedArgs = NULL; . m6 y" G( q0 r+ Y' I. h dp.cNamedArgs = 0; 3 h& H; Q4 S H% V; ] `: b+ p8 ?& r7 i
// Call IDispatch::Invoke() 9 _# @( k$ s( R ; i! Z D. e0 Z! m hr = m_pDisp->Invoke( 9 K- i2 F# K7 O; K( `- N pokeID, ! u2 D" F1 Q. r9 Y! o, t IID_NULL, t! F9 R3 R o; H0 o# d, @
LOCALE_SYSTEM_DEFAULT, e! u y( D3 Y5 z5 s+ [ DISPATCH_METHOD, 8 o& L7 z& k& } _" G+ { &dp, 5 a. M7 d1 c c: t% H NULL, 2 G' D" T( H: E& b2 p. F, W &ei,& [0 }8 v; P( K
&uiErr);1 W- R& U% l3 l
& F* s9 H$ m5 {
SysFreeString(topicStr);' _( k( ]6 L& x+ S+ T
SysFreeString(itemStr); 7 \6 p7 Q. L) E. c% J C; P SysFreeString(valueStr);7 }8 U) U, b l3 f+ d2 m- }
$ W: B0 S1 u' W9 N2 {" G; 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??? ( E y- A" v7 c2 P9 D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????" H! F' D; o/ p. K6 I5 ^
+ z; r) v# S1 F v& |: E+ ~5 c2 Y 5 r( `; R0 n' S7 {* n% Q0 q2.这是request的程序) I0 I1 q& w% z. k/ ]! ^4 p, x ^
// Request a value from Extend7 J, l% w& t( o' Y4 n5 h
//! B% H- q$ r. A8 `" J8 g- Z* [
// Initialize the variant that will hold the BSTR. Set the variant's( Q( g9 J0 d7 a
// type flag to indicate the fact that this variant holds a BSTR. Place the ' P" x5 F/ V% b// BSTR into the variant structure.5 C g3 K# a1 Q8 J( o
% a/ s$ [9 W1 m; g requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 t9 I# O, [* v. z1 L8 s
. y' J4 T" e( k0 Y/ ?+ b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 ~# ]; a; _1 g; w3 r7 T VariantInit(&requestVariant[0]); * H0 g- L3 V/ \& e/ {5 b+ f requestVariant[0].vt = VT_BSTR; ( }( ]! G2 c- {& h+ [ requestVariant[0].bstrVal = itemStr; " b! g2 o: K8 o- C* A 4 z+ Z& W7 J( e7 j/ n, j2 Z# D topicStr = SysAllocString((WCHAR *) L"system");" s4 V: F6 F9 t( e: v" M* M9 K
VariantInit(&requestVariant[1]); ! P6 Y5 y8 o9 m6 {) B requestVariant[1].vt = VT_BSTR; 3 Z; R. N+ Q" y requestVariant[1].bstrVal = topicStr; % K: j5 D( L6 `& U0 r! `! a + V: n4 p; |0 l. d; e// Set the DISPPARAMS structure that holds the variant. 0 U B4 ^6 h9 k, x( W( [ 0 c. W7 l5 r; o% q" f; ^3 l dp2.rgvarg = requestVariant; & P9 c- u4 O; ] dp2.cArgs = 2;8 ?. X3 |$ s9 z1 l/ X
dp2.rgdispidNamedArgs = NULL;. Y/ V( z/ F4 d0 _/ ?
dp2.cNamedArgs = 0; , ?% y' m! W7 p2 M$ @ % _. W- }& d& d var.vt = VT_EMPTY; 7 j1 B5 o' P t3 X 9 F4 O2 R, g7 i" c' W- a8 v& z// Call IDispatch::Invoke()/ e- l+ `3 L0 G& c. k' n
( v# Q0 T' e% m8 @$ W" L: r! \* a7 ^ hr = m_pDisp->Invoke( % A. {( ~3 ~! Z2 h) | requestID,5 U" q4 u: R' ]' k! @3 R
IID_NULL, - F2 @- y+ x& p: V0 f LOCALE_SYSTEM_DEFAULT,) d! D7 ~ l7 ]/ z. a1 l
DISPATCH_METHOD, 8 x6 W1 _1 {) n, P- F8 J5 \; ^ &dp2, 8 d. D& m& K/ `+ ?, l+ _2 e4 Z &var,0 J# \3 U( S( R8 l2 R
&ei, " N( ^9 D0 o, j- E% L &uiErr); 8 b2 N, {4 L1 b2 m% U" l % s, V8 R1 _2 m0 j SysFreeString(topicStr); : D: _6 x8 P1 Q5 W' x9 g8 M SysFreeString(itemStr);' ^1 W8 r4 e# L8 i. m
请问该程序是获得extend里面的哪个值?4 v1 r: L. H. }1 y3 S8 `
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????