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 a4 y# d5 H1 I) Q, V5 A4 MName = (WCHAR *) L"Poke"; . H+ g( @2 [/ O* ^/ T/ j0 Y$ j 0 l9 m% W. _) z' h, `: H hr = m_pDisp->GetIDsOfNames ($ U1 H+ i$ F( O8 H2 R$ t( Q
IID_NULL, // reserved) D( p/ f8 t3 ?7 }* h
&Name, // Array of names to get IDs for : v7 j, A5 Q% C6 ?8 v: f" e& ` 1, // # of names in the array 9 [ P- I# R6 S8 x4 m LOCALE_SYSTEM_DEFAULT, // System locale- G, Z0 J8 a X7 l1 i0 l
&pokeID); // Array of IDs to fill on output / _7 s6 B! u, t) @5 n: Z 0 c& o7 B4 B2 l8 z& t$ P if (hr) ) |, ~$ n% s, G { 1 T# h* @: ?1 E4 t MessageBox ("Get Poke Unsuccessful"); / z! y0 {/ V9 p: L/ o V9 A' K return; 7 z, }0 ~6 m: D9 F! q0 n5 X }; { G9 z5 Y/ J0 |: H
: e3 d# y, S4 X5 ~" R2 {
/**************************传递数据给extend**************************************/ ! B9 V7 v, r- `$ P! V pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ' h1 y, r) `& O& G* V$ H0 m 6 s& ^# ?: P* S0 V" [4 z valueStr = SysAllocString((WCHAR *) L"1232"); ; i" g) U: l0 k0 Z. G6 a( S VariantInit(&pokeVariant[0]); 0 ~$ g. X d- c& _
pokeVariant[0].vt = VT_BSTR; ; Q' b) o( J4 z% J2 W" g' o pokeVariant[0].bstrVal = valueStr; 8 t2 C5 i3 S7 `! M8 F5 r: W* A 4 o' ?" ^' \( ^4 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 1 A' b' U; K A* Y' q! f& |' E5 R& v VariantInit(&pokeVariant[1]); # G' K; j/ q9 V. b+ @
pokeVariant[1].vt = VT_BSTR;9 d/ Z, F" R( i ~* i
pokeVariant[1].bstrVal = itemStr; ' G% Y6 A. o8 z# i: B ! ~1 N6 T* y4 r' W7 y, B4 A+ g! ] topicStr = SysAllocString((WCHAR *) L"system"); 5 T& v6 k& c) u7 J2 ] VariantInit(&pokeVariant[2]); , D5 M. G" N5 a' {( ? ?, ^ pokeVariant[2].vt = VT_BSTR; 6 ?% t, Q! S8 x) Z pokeVariant[2].bstrVal = topicStr; : y+ l, |) Q1 u + U" i0 Q# _& k( [. S0 I) B- W// Set the DISPPARAMS structure that holds the variant.! }) p ?' P1 }2 T5 c/ \$ ]% p
2 [2 Q4 Q- R% ]+ I7 `( ~ dp.rgvarg = pokeVariant; 6 Y7 Y8 ]3 w0 \: | dp.cArgs = 3; ; M: Y* F& |- Q; B9 H" D! l dp.rgdispidNamedArgs = NULL;2 o& @5 ]7 Z5 M5 j, I8 M
dp.cNamedArgs = 0; & S8 b- i/ ^% K9 ]9 \ V) }; u. ~7 y2 Z9 E5 C0 O
// Call IDispatch::Invoke()% |, M# X( Z2 N5 a; g8 B+ k
( X. `" H! q+ O
hr = m_pDisp->Invoke(: m* _4 U' W7 U Q. m+ b
pokeID,1 b1 ^5 P+ i' g
IID_NULL, : h' a% h4 x+ F/ H G; L) ^ LOCALE_SYSTEM_DEFAULT, / H L, _& z( D2 o% C$ P. c, } DISPATCH_METHOD,5 j0 s& n$ ^1 H+ K
&dp, " }* |* U! K4 w/ r, z' ^8 h5 D5 W NULL,+ I! g' ?- }) A r' V
&ei,. N' F0 l' I& F9 |* O& n$ g0 q
&uiErr); 3 x1 K9 k( |& t) e# s- B. \( v0 s& H% x: v
SysFreeString(topicStr); c3 ~3 S9 @- u/ v; c7 r/ O; M SysFreeString(itemStr); % a3 D' i( q6 ^ SysFreeString(valueStr);# T# }$ I% y! ?( [" s- K5 L
6 Z) O* R) J" A, ~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???0 Q% F+ k, F$ E8 K! j0 o
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????) i$ [& d7 _- G/ p6 b* r
6 \% Y4 i# i4 q; i2 N2 A0 C* b) }
( L8 J3 N" z- n3 {/ P: i5 b2.这是request的程序! M. \8 m: [# K3 @) g3 L
// Request a value from Extend 4 S9 D8 n' O; o# R; N! Y//6 Y6 v% s U) j: E5 z
// Initialize the variant that will hold the BSTR. Set the variant's3 {% U! g e. D# O' e
// type flag to indicate the fact that this variant holds a BSTR. Place the# \. R* V% O4 J. U0 P
// BSTR into the variant structure. ' n( e* r b; n% v ) P3 K# Z+ X" r: e6 V requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); - i) ]& t, a# J# ] D! {, O/ a: |- C7 d& f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 Y0 _5 L% m$ d3 Q2 k
VariantInit(&requestVariant[0]); 9 \! S h; K$ m7 b8 r requestVariant[0].vt = VT_BSTR;' R# ?' P" n; {
requestVariant[0].bstrVal = itemStr;( q+ t! v+ R! Z# z" a5 y
. z' `6 l; o; p topicStr = SysAllocString((WCHAR *) L"system"); 7 }6 V( i- Z, t8 W5 Y% m8 I VariantInit(&requestVariant[1]); + x; U3 n2 K) W$ R9 q, R, D8 X, l; Q
requestVariant[1].vt = VT_BSTR; 2 X) |. K0 @8 i, q+ h* c/ k% s+ g2 E! c requestVariant[1].bstrVal = topicStr;( Z7 e& L# @) c# s5 G. d/ c
+ K; l- x" e, d) ^
// Set the DISPPARAMS structure that holds the variant. 5 O2 h( z0 u: B8 N$ L . w* b4 c3 F7 } dp2.rgvarg = requestVariant; 5 p/ \, W" p- z# U' z9 K+ |# J1 p/ }: U dp2.cArgs = 2;7 c1 e1 o- U2 @1 p# w
dp2.rgdispidNamedArgs = NULL; ( Z( a4 k! a/ l: k9 C6 h5 E dp2.cNamedArgs = 0; 3 o) Q% R( d- x7 y: p: O 6 U1 M7 r4 K: P var.vt = VT_EMPTY; " T/ J. D, W7 `1 ^5 T' i. X$ @; y) Z* R. e
// Call IDispatch::Invoke() y* R1 `, n3 D: r, s: C2 _ + A. c+ w8 v% I- E3 H hr = m_pDisp->Invoke(# [4 O8 B$ N+ q* J7 l6 Y
requestID, ' P, f# j8 g q; O IID_NULL, + {4 l9 W) v( I LOCALE_SYSTEM_DEFAULT, , T$ k/ P6 \: H) r6 Q DISPATCH_METHOD,; I+ e! s2 q! J6 Z, Q& S4 I3 ^
&dp2,/ ?; U6 x$ T9 t6 a
&var, # I$ D. Z- U1 F4 p &ei,0 ~3 d9 Q' m0 z/ e9 N
&uiErr);% }6 N0 f/ w$ O" M) F
8 j. d6 X: ^0 N' n SysFreeString(topicStr); 1 g4 `& b P* @% x SysFreeString(itemStr); 9 {7 P1 _2 f" O6 S' [% o请问该程序是获得extend里面的哪个值? + j% P" Y3 a: z+ i( n0 g8 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????