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:8 x( k! ^) Q+ Y* r. H* U
Name = (WCHAR *) L"Poke"; & {) S F: V% _+ K+ R' o' L3 J * o* `) }$ l! ?7 t, A7 F0 c
hr = m_pDisp->GetIDsOfNames ( N, x( u" ^. \" \ IID_NULL, // reserved. `& _+ O, q; ]. d! X
&Name, // Array of names to get IDs for9 N }. ]% \9 C, ]4 M5 g- d4 o
1, // # of names in the array; U% [) u% ~ C, m
LOCALE_SYSTEM_DEFAULT, // System locale 3 H7 b' I7 X n% c I &pokeID); // Array of IDs to fill on output / H- o+ R5 X- `' e/ C8 n $ A1 j% C2 ?9 B' p, T. L* b" p
if (hr) ' a* G4 F$ X+ R# Q7 H: D {# A# Q" s9 J# N
MessageBox ("Get Poke Unsuccessful");- y/ i# ]! E( Z7 ^1 b: O
return; 5 u- z% d% N1 b; T4 L } * M4 Y# `( y7 F0 i5 O D& C" x2 G. N& r/ M* R" [( U
/**************************传递数据给extend**************************************/- }3 @" V0 `: _; R& E, b% k) j) }$ B
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 7 l+ a ^3 F) D & z2 t% [" x/ R# s3 h
valueStr = SysAllocString((WCHAR *) L"1232");0 O0 i% }! {7 p2 l4 n8 E: X! q, r
VariantInit(&pokeVariant[0]); . m9 {3 w2 N, J, Z6 m! o pokeVariant[0].vt = VT_BSTR; 6 n% {# Z( ]/ ~; N pokeVariant[0].bstrVal = valueStr; % f v; I9 P1 S" _1 u7 s0 L/ W: y. k8 B( R' h) j6 e( j& _/ V f
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % B& m, M1 M( t* O' i VariantInit(&pokeVariant[1]); , x- C6 ` e$ [& }+ N9 r7 @" ~ X
pokeVariant[1].vt = VT_BSTR;$ F7 u; a2 L6 q- v3 _9 P/ u# M; O
pokeVariant[1].bstrVal = itemStr; ! m% g" s y7 ~! h* c$ q) `: u+ s* N" D
topicStr = SysAllocString((WCHAR *) L"system"); 0 h8 m$ v6 w6 @/ c0 E VariantInit(&pokeVariant[2]); 0 @$ @( C7 z. ~
pokeVariant[2].vt = VT_BSTR; ) r5 g3 Y# A8 O/ _ pokeVariant[2].bstrVal = topicStr;6 j+ ?7 s4 G3 C, L h5 i
& Y) h T! T# b2 z4 e// Set the DISPPARAMS structure that holds the variant., x, d9 v2 z% ^1 M( S
) I. f4 Q* g! n k3 i6 o dp.rgvarg = pokeVariant; 9 S% X6 M$ n' \6 z+ ]4 x8 K dp.cArgs = 3; 1 m; b6 D: Z, }7 I7 X dp.rgdispidNamedArgs = NULL; ' Z$ _1 ~8 k% s* d dp.cNamedArgs = 0;! q0 h. L/ p' A
' L6 H. W7 I1 ?0 i, _) U// Call IDispatch::Invoke()0 M' D( d! T( y1 x# g( F7 E
1 U. u) S9 T, ?- p7 Q hr = m_pDisp->Invoke(1 O( ]! Z5 E/ T" @
pokeID, 7 b+ d- G# \- O+ w) K IID_NULL,* `8 a' }* s+ A
LOCALE_SYSTEM_DEFAULT, u% |# ^# l: f7 D3 i DISPATCH_METHOD, 1 y7 D. }; }" F! [0 D" U &dp, ! s8 T2 f8 _3 K, L+ w J NULL, + W" m: }* s0 \! M2 v2 r &ei, 8 j0 M& { U0 p' c# J6 `; @+ a &uiErr); ( r% { c) {% X7 d' C" V0 b G $ s* L% t% ~6 D i/ T% {; q% ` SysFreeString(topicStr);+ q8 `1 P2 v, L- @! q' T
SysFreeString(itemStr); # m' `( t. B# Y' [( H( ] SysFreeString(valueStr);+ y# ]9 ~3 z# w4 W( {
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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???( m" ~: ] W& F5 [4 p0 y2 |( x
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???? ! W N5 ~9 |/ }9 [, u) x0 x, {0 z4 d
! }& o& |# r; c1 S/ r! m4 ~
2.这是request的程序 $ N% K6 ^+ @" r8 r// Request a value from Extend$ A1 \( v* q# e8 @
// 7 X4 _% v. x9 F; P8 W0 G// Initialize the variant that will hold the BSTR. Set the variant's2 W9 E: \0 ]' p( _( I* j; [5 q
// type flag to indicate the fact that this variant holds a BSTR. Place the' r0 U8 m6 q D5 S4 M
// BSTR into the variant structure. * G/ x5 s ?5 s % l0 p. F3 C u6 s. v$ n requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); * k! k% ]) n; W/ G ! |: J+ R2 I. W; z) l" B) U p itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , w9 s5 Z8 M2 m; ^/ S VariantInit(&requestVariant[0]); 7 e4 P4 b$ o* s0 d) U
requestVariant[0].vt = VT_BSTR; & F& k" i4 D4 w% y6 e- z* w+ Y requestVariant[0].bstrVal = itemStr; 9 A: C" Y" u5 G* y 9 a/ m3 C- \/ T topicStr = SysAllocString((WCHAR *) L"system"); I3 V6 | T/ U. _4 P
VariantInit(&requestVariant[1]); 0 ?' D$ F( ~$ G. ?) J# q requestVariant[1].vt = VT_BSTR;! V r$ L" D& V: U- G/ q- W" U
requestVariant[1].bstrVal = topicStr; ; N5 w5 t9 L+ U7 B& b1 y: y 2 B5 b. l( A! g' a// Set the DISPPARAMS structure that holds the variant.; r' h7 V% J, x3 }
) Q; j+ a! P t2 b- i v dp2.rgvarg = requestVariant; Z! Z) B" F: w9 {; x" i dp2.cArgs = 2;0 z3 J0 ^: v) d( q% w/ z* q0 Y
dp2.rgdispidNamedArgs = NULL;2 ^1 a1 z' J; U8 a* {% h, a
dp2.cNamedArgs = 0; 0 B+ @& n5 T9 J! W& j' r: j) J; \9 k( [* ^" E- l: r& o
var.vt = VT_EMPTY; u' u1 \/ S# O; ~% Y: I' A) x 7 [# p. R, B; t' v. g' v& f// Call IDispatch::Invoke()9 q: G( U( P: f& }- q) _7 d! G6 s
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hr = m_pDisp->Invoke($ D: x* ~% E$ E
requestID,/ s3 `5 Y! G: e' B
IID_NULL,: J# P2 c9 s) D; x- P2 M1 ^
LOCALE_SYSTEM_DEFAULT, 6 g% H" u6 @) L. t( `, S DISPATCH_METHOD, L2 I7 e1 S5 C
&dp2,3 b3 z- J( ^; C% M' j
&var, , S4 M b; X0 b1 ^/ O& r &ei, / f5 j; q2 c% T- z, p$ N &uiErr); 7 X5 }, s8 B$ H3 [+ K. c) y; ^! s; R& @: ^
SysFreeString(topicStr);3 t$ ^% v I" E- k& v K. {7 ]) ~7 _
SysFreeString(itemStr);* X2 |1 E- N% H1 [9 h: c
请问该程序是获得extend里面的哪个值?# b2 j' A, ]$ O8 {* e6 h- C3 h
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????