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: g* l! E7 o( B2 N- DName = (WCHAR *) L"Poke"; " s- W8 _) j. x2 m6 j2 x( r 9 Y$ p1 d$ t. Q: W2 i, k; ^
hr = m_pDisp->GetIDsOfNames (7 d' l5 d* W) q0 C G& j: @6 F
IID_NULL, // reserved 8 Z$ e- J5 U; B' Y1 t( Y' D &Name, // Array of names to get IDs for : m1 b/ S, ], F% i2 x/ w. D- E 1, // # of names in the array $ d5 C4 y. N+ } LOCALE_SYSTEM_DEFAULT, // System locale4 |4 T8 L$ }* b1 s+ R
&pokeID); // Array of IDs to fill on output) b5 G3 k' d/ O$ {; |1 t
: O0 O; F( Z; @) f' q g& b if (hr)0 o' h& K$ T$ Q& ], ]; d+ m/ M: U8 {
{ ! h. U$ ~ h1 ~0 Y* ^, M/ x9 `$ |0 n MessageBox ("Get Poke Unsuccessful"); # f$ E% f" s' x" j return; + m3 r. d9 i6 E" ?3 }" f } * u7 T8 O5 K, [2 k/ y/ g! T0 r6 v , k; \- V: N9 q) K/**************************传递数据给extend**************************************/* O0 x7 b; [$ M$ m0 A: p2 f
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 l6 B2 k0 P! \$ g 2 H6 g" N7 \" [ y
valueStr = SysAllocString((WCHAR *) L"1232");, V' t0 @! M0 j0 r/ p6 p4 I
VariantInit(&pokeVariant[0]); 0 a" e3 j+ F! G1 y: U( s
pokeVariant[0].vt = VT_BSTR; ) F/ s6 S* ^- @6 Z5 i pokeVariant[0].bstrVal = valueStr; 3 S' y$ Y5 E4 q' w6 A' ?7 ]$ [+ l) `( c! Y& O) h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * ~/ _7 c# ]* G. w5 f$ b VariantInit(&pokeVariant[1]); d4 L; \. A& l. } pokeVariant[1].vt = VT_BSTR;' d4 l* F4 r) u7 {0 V V. I Q
pokeVariant[1].bstrVal = itemStr;) m2 W/ t( g2 h: M
- X9 w+ `' c m. F3 o" f H) P4 _7 H' P
topicStr = SysAllocString((WCHAR *) L"system"); 7 M% e7 \- O: u4 F% i8 F7 D VariantInit(&pokeVariant[2]); ; d, f @9 { y0 q6 k4 I pokeVariant[2].vt = VT_BSTR; 4 V+ N1 s% q$ h2 ]! L pokeVariant[2].bstrVal = topicStr;. ?) C1 |& t# t( \- q. k
6 M0 l8 N3 Z+ k: @% N// Set the DISPPARAMS structure that holds the variant. - s' f8 j# N- H A 9 e7 u& D( h5 T# v+ K+ t dp.rgvarg = pokeVariant; + B5 \# a; [7 F, n2 `) P; `" p, N dp.cArgs = 3; & `" g; f4 B3 p4 n dp.rgdispidNamedArgs = NULL;: {( e: B; H: G% n- ^* W4 ?
dp.cNamedArgs = 0; * o4 t9 Y; I* t) ?: K 4 d- j8 Z/ \2 r: U- V5 x6 [* K// Call IDispatch::Invoke()+ K1 V$ z( u3 L2 e* C' f7 Z4 l
( P% L9 L( D) E hr = m_pDisp->Invoke( 1 R- r! g; r; }6 o; r6 p" ~ pokeID, U& R1 f( f4 W/ D1 x2 I IID_NULL, " ?" j* H+ }6 I) f+ |3 { LOCALE_SYSTEM_DEFAULT, + T- Q8 p( ^: Z DISPATCH_METHOD,- ]& n0 K! W2 \1 q: t
&dp,1 d4 R" d% k+ b7 R- f3 Q( Y+ L" k
NULL,6 }* M$ \ b. y9 B" W4 c
&ei,! a9 K( Y: H+ h- [* g% y4 E
&uiErr); / f8 m4 L3 Z9 e' a0 L/ M 9 m( U, J) @" T/ e1 r/ Y) r SysFreeString(topicStr); * K* b! L1 W" L+ ]- S; r" F SysFreeString(itemStr); + N: o: k6 `4 z SysFreeString(valueStr); 7 S% \% I) F- W/ Z7 }8 }8 N4 M& k1 i/ z
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???1 m. N5 A6 e6 z8 h' }6 Y
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????% `& \3 N6 q+ \( a
+ _3 Q, M2 u/ X) _3 q / _& q1 S3 o8 z! h2.这是request的程序 0 c- j3 _; e1 _) A% {// Request a value from Extend* d: c+ u; z( U I) o2 A% Z; @, @
// - s7 o- a- i' q' k, b// Initialize the variant that will hold the BSTR. Set the variant's ; G7 ~3 G. u% x8 r$ e# z# B5 Z// type flag to indicate the fact that this variant holds a BSTR. Place the# `# M; i" F* h8 b. ]2 N
// BSTR into the variant structure. 3 W* u4 e* G( v% x% w% \# c8 l! u3 L3 U# Y
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);3 U) ?+ m: W1 Y3 c: K
- B$ `/ e: D% u8 o# f0 e( ?# E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 z8 M0 V" t w: s/ h2 q. S1 T. r VariantInit(&requestVariant[0]); : H c. k! I- @$ q; h
requestVariant[0].vt = VT_BSTR;* c' T, h) P/ ]$ F+ N% [; t
requestVariant[0].bstrVal = itemStr;- p b; M; [6 y7 f5 B! E! @. i
* f: g+ T' A4 U' ^ ^
topicStr = SysAllocString((WCHAR *) L"system"); 3 G( V: ^0 K# \" S VariantInit(&requestVariant[1]); # K8 @0 n+ H3 Z& P c4 g4 a D requestVariant[1].vt = VT_BSTR;- [+ I, v' F! c
requestVariant[1].bstrVal = topicStr;$ S3 P/ k/ t* E& E2 V2 x
! ~& {! @* ~) ~// Set the DISPPARAMS structure that holds the variant.+ o: P- J8 c9 C& f# e* h: h+ V
6 R$ P# _* n5 K) |9 C) G2 Q9 L dp2.rgvarg = requestVariant; ; L2 D0 Z8 ], M dp2.cArgs = 2;( \& w# {( q- D) a
dp2.rgdispidNamedArgs = NULL;. E" ~! a0 W& n1 O
dp2.cNamedArgs = 0;6 W1 V# g, x# W% ~$ x
/ C \) J P* ]8 k. F2 Z0 n var.vt = VT_EMPTY; , L6 N; T- W I2 p" F ^: Z$ l- O: }7 B5 F6 P4 n0 v
// Call IDispatch::Invoke() 2 i7 H3 s" Z s9 B: f2 Y% {0 ?% z. B2 U4 N* o& d3 Q" h! n
hr = m_pDisp->Invoke( " i1 `6 e# O1 N* u2 z requestID,3 d2 Q3 \/ Q3 L u3 o! J- `5 @
IID_NULL, 2 ^. w. N4 `7 ]% f( U LOCALE_SYSTEM_DEFAULT,5 I, e# q4 f; W( V) |
DISPATCH_METHOD,0 [: Z! o4 B( G& F; N- B
&dp2,* P2 w- ?8 V* N+ _; s$ G; x
&var, `2 c B! v! c ?2 Y" _ &ei, 2 j6 ?0 e7 A( D3 q: v &uiErr);# s+ E* {: Y+ S
* p& }% { @9 v2 I& m
SysFreeString(topicStr); ' U. J; e7 V" {- [+ U5 | SysFreeString(itemStr);; o. R3 r& O6 r( ?% q
请问该程序是获得extend里面的哪个值? 0 ~ r5 V2 y5 Y" J% Z# E+ Q" 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????