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:9 d( ~- P0 H+ U
Name = (WCHAR *) L"Poke";9 a# a) ?" f' N8 S" x
; s' Q, r& e- @ hr = m_pDisp->GetIDsOfNames ( & y! D+ b- a) L5 A6 c IID_NULL, // reserved& g' [6 r+ n0 }4 m- t( u
&Name, // Array of names to get IDs for5 a/ b( q5 p# V) I9 q C! z
1, // # of names in the array 0 F' G2 b$ a1 b LOCALE_SYSTEM_DEFAULT, // System locale 8 p5 Q/ [, ?% x* A# \( Y1 u &pokeID); // Array of IDs to fill on output " u F1 j. }8 u2 e/ E ! ^3 m: W# u, K8 ?: p( g1 h, R if (hr) % t: ~" `/ [, t- ]" U3 p6 f& K { . \8 B. c* j5 G MessageBox ("Get Poke Unsuccessful");5 @7 t1 d. F) V
return; ; \1 M% Z: }$ S" Y' ]* m } ) A6 }7 Y9 Q I/ ^+ K+ L4 s: E1 u4 i
/**************************传递数据给extend**************************************/ " a6 p) |5 [ J$ _4 Y8 C+ e! C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, Q; o( @2 k0 D u7 R
1 V( G- V4 N' w+ G
valueStr = SysAllocString((WCHAR *) L"1232"); 7 x( A Q* C- k+ V. |7 ~: E& v VariantInit(&pokeVariant[0]); 5 y* |) w: q( C, \! X( B: G2 ^ pokeVariant[0].vt = VT_BSTR; ' G3 w$ H+ {2 g& Q0 C pokeVariant[0].bstrVal = valueStr;& m: V- ]5 [8 v1 o5 x( j! G. ]0 F
0 [1 ]" m0 O( f) ~. Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 c2 L3 Z6 P/ q. v; ~% `. N VariantInit(&pokeVariant[1]); ' `9 t& ]4 u8 J; y2 T; U, k pokeVariant[1].vt = VT_BSTR; ' z1 s: W- v) E# G% D pokeVariant[1].bstrVal = itemStr; 9 k$ ^7 @& C9 L9 E1 @8 J) n0 w- _- b
topicStr = SysAllocString((WCHAR *) L"system"); 9 r/ z2 _$ T8 ` o1 f' a VariantInit(&pokeVariant[2]); 2 k0 W% @! U2 g1 q2 Y s
pokeVariant[2].vt = VT_BSTR;9 P6 f4 X* c: K0 `
pokeVariant[2].bstrVal = topicStr; 3 E' M, \+ n0 l# ]3 l# V* ]. H, T/ d9 G- @" Z8 @
// Set the DISPPARAMS structure that holds the variant. 4 n0 P9 b! g G5 h/ a6 N% S6 M# W6 K9 Y$ R' i( E! J
dp.rgvarg = pokeVariant; , j# _. Y& d$ c/ q5 X! D8 e dp.cArgs = 3;6 T, J F7 ]$ N+ e! f7 d# F
dp.rgdispidNamedArgs = NULL; 1 S8 j* V# `. y dp.cNamedArgs = 0; . Y. A2 |* i; S% Q5 i. A ! a: c) }) @6 g# \: \$ r# w// Call IDispatch::Invoke()5 r) V/ {% ?. v4 }5 ?
) L2 C3 E- I, n0 b2 `) D hr = m_pDisp->Invoke(' b% L/ l) U/ F
pokeID, ~" x$ d% ^8 C/ h( d) q' m1 y IID_NULL,( I, v! ^, z3 G) r
LOCALE_SYSTEM_DEFAULT,5 t3 q5 j. b( ^' b
DISPATCH_METHOD, 9 y* {3 o8 R: m &dp,7 g. B1 a4 ^9 P% R/ d, [, F, t
NULL,( l& \0 [! j, G2 M7 k# x
&ei, E. b3 k/ q# k' d! w
&uiErr); 7 d0 G4 n5 _, G v5 \8 V' ]: {3 ^6 C" d$ u) b; t
SysFreeString(topicStr);0 o2 P+ q# y+ N* q
SysFreeString(itemStr); L& ?: g, f. e3 s1 G
SysFreeString(valueStr); 0 y1 \( Q- h- H7 c: ^0 J/ k / Y5 E, i1 ]2 n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??? 6 G; @* N# @/ p' m$ m9 |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????6 R K) j1 p$ K7 F
1 i% e7 w+ t6 J, N* [$ T& P! {$ m6 N$ r
2.这是request的程序 ' Z( r+ D: b: v K* I% m; _/ K// Request a value from Extend& ^* p" J1 d6 h r8 ?" b0 a: f/ C/ O
// ! \. `% w. l, h! p2 Q// Initialize the variant that will hold the BSTR. Set the variant's: @# ?1 }; m) l! C# n) P0 ~: n( G& R
// type flag to indicate the fact that this variant holds a BSTR. Place the & N3 t5 y/ a1 o2 y// BSTR into the variant structure. . P, a& |# g& i Z _: v: J) o/ M w% n7 M& @; |
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); G& i- D( U! [- X
0 ]% [3 ~9 g6 F. R
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 y' i# c' Z( V1 _8 B' ^5 r VariantInit(&requestVariant[0]); % |& n9 F! Z( v6 n4 j
requestVariant[0].vt = VT_BSTR; $ k ^/ Q( j. D- b5 `5 O; { requestVariant[0].bstrVal = itemStr; 3 E* o+ N, ]" i- W6 v2 k# ^ , C K. W8 g7 c3 Y: e$ |% z* o topicStr = SysAllocString((WCHAR *) L"system");9 R" {" `; ?; R# m. \
VariantInit(&requestVariant[1]); . R1 o: Z/ w, u, ]% m# h7 U requestVariant[1].vt = VT_BSTR; + `; ^: c, F# ]5 L requestVariant[1].bstrVal = topicStr;6 |& i( ]3 |# ]# p
, H' S6 u" c# i) p( x# _# C% _6 X( r// Set the DISPPARAMS structure that holds the variant. * M" j$ A: d& `4 J, f" y( G5 {( e3 k! R3 R w) A! k f
dp2.rgvarg = requestVariant;" v; C( U. Q/ W1 k$ x, z0 j
dp2.cArgs = 2;1 o$ f* T# }! ~7 R' A6 p6 `6 `
dp2.rgdispidNamedArgs = NULL; $ \- C6 I6 N3 I$ Z3 S3 { e dp2.cNamedArgs = 0;# r6 q+ Z& L5 |' L& }+ B2 s4 s
/ m2 \7 w' L2 {7 g8 n [! W8 {' s8 C
var.vt = VT_EMPTY; 4 E/ g o: _+ b% n$ t9 q3 Y/ H( y3 W2 ~0 ?
// Call IDispatch::Invoke() 7 T" v1 B1 X3 ]* | % Q0 y4 C7 W# V% k s; d hr = m_pDisp->Invoke(7 f7 _3 i1 [" h; k Y% _! ]- O
requestID,3 m0 w5 P& W5 P1 x" [
IID_NULL, 1 s, Q* }* g( P! N' a! u$ | LOCALE_SYSTEM_DEFAULT,- j! K2 p: q3 i5 N# E; U" Z
DISPATCH_METHOD, 7 i9 ~. H& u# L &dp2,& x7 r& N% ?. C
&var,- ~4 F" x" ?4 y' N* G. n
&ei, & X( p8 f. a, K &uiErr); ) j; ^5 {* n; t8 z+ V0 s4 {6 g/ B( ]
SysFreeString(topicStr);& Z: ^. j% R" w+ t% N9 ^
SysFreeString(itemStr);/ `- V- z" q% ^) w: D
请问该程序是获得extend里面的哪个值?( x4 |8 y& F! j
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????