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: ; t$ l; p7 A) ^: i. j3 j" {- LName = (WCHAR *) L"Poke"; : g4 A( Q: E- d- s* j9 H # }1 e. j0 d( ]0 i* _ hr = m_pDisp->GetIDsOfNames (" O# ]$ Q( ]. I$ r, N3 J
IID_NULL, // reserved : y) G& G' h1 {- ? &Name, // Array of names to get IDs for $ r1 m- l6 V! `) R$ p9 V9 u( N; \ 1, // # of names in the array, `1 }7 ~" x# j9 l* E7 b' O- v9 p
LOCALE_SYSTEM_DEFAULT, // System locale. i f2 e0 b( I; C! ?
&pokeID); // Array of IDs to fill on output 4 _8 i4 z2 ^5 c1 ~ ' P% ?+ x5 z0 o( e f' G
if (hr)8 N# ^2 s+ p3 f
{ * ^' t, m/ k K1 w' S7 H MessageBox ("Get Poke Unsuccessful"); , H' T) w Z# Q s9 i% }! A! V& ~ return; ( ^2 Q8 e2 N% a. f$ K8 E }+ h5 A* r* M" S: C0 |
$ [& I, [0 r7 C9 y. Q. D
/**************************传递数据给extend**************************************/7 F7 J) y7 z# W6 x
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 M4 n, v7 _+ H: C6 B. ]: z* Q+ H ) V: q+ Y4 V$ l8 a9 I$ M {* y
valueStr = SysAllocString((WCHAR *) L"1232");1 P$ X: f9 \" T
VariantInit(&pokeVariant[0]); 0 d7 {1 q+ X) e+ g
pokeVariant[0].vt = VT_BSTR; + \9 y$ B4 f# \* R3 R; O! @ pokeVariant[0].bstrVal = valueStr; ) P7 a8 k) B/ k" m1 C) G. m+ f8 h) o- c4 v: Y6 c1 u* ^& Z2 F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . V% A/ O( F" ?, Z# f4 T) I, L: i1 V VariantInit(&pokeVariant[1]); ' K$ t5 I1 h \
pokeVariant[1].vt = VT_BSTR; D) ] s+ y; a/ M0 Q' l. V" L pokeVariant[1].bstrVal = itemStr;. n' z$ Y5 u6 Q5 y
0 g; a: T& [6 z8 ^6 x p$ m
topicStr = SysAllocString((WCHAR *) L"system");: I8 i" j1 }# I8 C& t
VariantInit(&pokeVariant[2]); 1 Y: Z# ?, ]* x4 K- V2 U pokeVariant[2].vt = VT_BSTR; % C& ^: m, L7 N+ d! U- _) R' D) u pokeVariant[2].bstrVal = topicStr; Q+ ?; o9 N p8 R5 \. U! b
/ O) z6 J' |1 @
// Set the DISPPARAMS structure that holds the variant. 5 S9 W6 `/ b+ Z) z9 x/ Q, L" v ^0 [
dp.rgvarg = pokeVariant; 9 s! w0 y. Q9 z0 ]* l2 H+ P dp.cArgs = 3;; ~5 x0 D3 Z$ Q K5 ^( H
dp.rgdispidNamedArgs = NULL;9 w% ?' _# i6 o( H3 V
dp.cNamedArgs = 0; 2 T1 p& H, b8 { ' y n) D2 F$ \// Call IDispatch::Invoke()( I$ ^! d4 ]5 B+ }& X' S8 x. g' A
7 x+ P4 O# E$ m4 @ hr = m_pDisp->Invoke( 3 _( r3 h7 Q0 q! W: S5 d8 |% q pokeID,8 d1 [) P5 z8 d# k
IID_NULL,/ C# s2 r; N* R. e$ K; d' m5 H
LOCALE_SYSTEM_DEFAULT,# Y: d) Y$ Q0 N! z% H
DISPATCH_METHOD,0 d) J r6 E: E+ m; Y; m+ Y; V
&dp, . ]4 _/ H6 g5 C4 s NULL,& P9 @2 n6 O3 S) k% r$ J, I
&ei,1 w+ l% m8 P- }4 d9 B+ z" |# b/ {0 e" S
&uiErr); 9 C; l$ D1 j; y# C( a . l4 k& x, s6 ~% B/ H SysFreeString(topicStr); 2 G) D; }$ A$ I3 c: v SysFreeString(itemStr);6 P# L0 e1 I9 \# q6 V" c
SysFreeString(valueStr); - h6 l( B1 Q8 w. N4 U* D0 H- K& v) S1 E: e' k- P
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???' c: d9 _3 a! S' M, _
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????. k- v% Q8 C7 {5 N% k1 Q
q s9 t' h3 L$ O ' r! s9 w. k: X v2.这是request的程序 , \& |( N1 [4 r4 J' [ q1 N, p// Request a value from Extend3 Q+ X. V8 Q- S
// + S8 o" z, |6 `8 `- Q8 I// Initialize the variant that will hold the BSTR. Set the variant's: L5 r& U- s/ |; a( T
// type flag to indicate the fact that this variant holds a BSTR. Place the" J8 M0 i1 D1 i8 A
// BSTR into the variant structure. + J+ i {9 T" R- }7 y - v/ s0 j& O' G3 j- v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 2 L0 ?7 o0 X! c! O * _1 C' c- q% H+ G! B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ; X& m7 s: Y' @ \) j VariantInit(&requestVariant[0]); ! v9 T' i1 A: c6 w5 J6 G requestVariant[0].vt = VT_BSTR;7 o, ^$ S `' O2 P. [$ o
requestVariant[0].bstrVal = itemStr;" L: K5 u0 c2 T
# y3 I& Y3 i/ D5 P3 @& s' _) U topicStr = SysAllocString((WCHAR *) L"system");+ G2 j$ Z( X. V/ H
VariantInit(&requestVariant[1]); * M' f0 W! k5 u+ Y; M5 j requestVariant[1].vt = VT_BSTR;! G9 y5 B, \0 r2 Y8 l
requestVariant[1].bstrVal = topicStr; ! Y4 y5 U0 Q# f" J1 i4 ]: c* p8 g+ Y1 S
// Set the DISPPARAMS structure that holds the variant. @: P7 Q, ?% N
$ U- k6 s& e) I; X! ~9 P
dp2.rgvarg = requestVariant; & U2 W" ?3 a3 [4 |9 E dp2.cArgs = 2; % U! i0 D4 _2 }) Z4 J dp2.rgdispidNamedArgs = NULL; 0 V$ o* M1 N' g dp2.cNamedArgs = 0;/ V9 ^9 |: B* Z8 N! Z& ~* j) |
' R# l8 r" E, o/ O* G
var.vt = VT_EMPTY; ( O) z7 s' T+ h$ n, R9 ^; l& f& } |0 R" m+ W0 a$ \
// Call IDispatch::Invoke() $ g+ i1 l( X) @) [4 A% b, g0 |: T! I; q' s/ t9 A3 V- E8 X t) E. b
hr = m_pDisp->Invoke($ b! b# V3 r, v
requestID,4 S( n) x! m( s7 g
IID_NULL, $ H* u/ `' |, e5 W( h$ V) ]: S LOCALE_SYSTEM_DEFAULT, ; ]8 ` ^. a4 ~2 l' c- N. k DISPATCH_METHOD, 7 S7 g) G+ n5 O# N- t ~ &dp2, 4 H3 P* e3 ^7 B- ~ K7 \ &var, ! q# Y7 }0 @8 N' s# } &ei,' k, u% x8 B. R* C+ U$ O. q8 N
&uiErr); : K( `% n4 P% C3 p" Q( N" V1 t: U& C
SysFreeString(topicStr); 4 L3 V( M0 S8 K N4 n SysFreeString(itemStr); $ i: V: `; F% O请问该程序是获得extend里面的哪个值? # j. T5 S, A3 D' A. w4 v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????