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:( m! A% D$ i. S1 w; R5 ^& e
Name = (WCHAR *) L"Poke"; 6 o8 U( x9 t/ k" ` ! Z$ j+ W+ R c" L
hr = m_pDisp->GetIDsOfNames ( / I P5 k4 r0 K IID_NULL, // reserved% y: i P2 c) f/ s
&Name, // Array of names to get IDs for' l1 @& d( ^, k
1, // # of names in the array$ Y$ ~* [' k ~+ s b, J: O4 _5 m9 X
LOCALE_SYSTEM_DEFAULT, // System locale 1 P8 r1 k. ?# e+ L; f* [5 f &pokeID); // Array of IDs to fill on output ! E9 C/ `- L, B; ~% E ) @3 e4 ]+ P6 N+ F% ~) n if (hr)+ J$ o0 g5 C1 B1 |
{$ `) n a! T. h- r
MessageBox ("Get Poke Unsuccessful");$ J: Y+ x0 Q# Y) Y6 X+ K* a. n
return; ( h7 k9 Q+ T# A# S" h, G3 B; L }3 ~6 B# ^: X$ T9 e$ W9 g5 D
4 f% @5 ]8 y1 c7 Q* M; T7 M" |/**************************传递数据给extend**************************************/$ Q" X; Z- C+ r9 T) f% X# W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 c+ S1 O" l$ ]9 D 7 g% t4 _: o& I4 r l
valueStr = SysAllocString((WCHAR *) L"1232"); 4 N+ `. u7 F K% M. } VariantInit(&pokeVariant[0]); # B3 s# \1 T- k6 V, g2 B- U" w
pokeVariant[0].vt = VT_BSTR;; J0 M# d; f/ E; F5 t
pokeVariant[0].bstrVal = valueStr;. B: k# X" S* t5 F3 i% b1 U
: Z% ^, Z; D4 G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% I' v$ l( M8 ~& @
VariantInit(&pokeVariant[1]); 0 s$ t$ u. O* { j" e
pokeVariant[1].vt = VT_BSTR;4 \, U3 t4 k! Q, P) \4 m/ i1 u
pokeVariant[1].bstrVal = itemStr;8 }7 V7 u @# W0 ^, z7 e
' l3 K( K& ] e, v a( x b* u8 ] ~. [ topicStr = SysAllocString((WCHAR *) L"system");( F7 t& j2 N; I
VariantInit(&pokeVariant[2]); 3 O7 {; M: b$ e4 e
pokeVariant[2].vt = VT_BSTR;+ J* Z; e ?' {
pokeVariant[2].bstrVal = topicStr;+ @6 G6 I5 @# W7 g0 p( A7 l
# ^8 R. K% u/ e$ ?) D; h. i Z
// Set the DISPPARAMS structure that holds the variant.+ r$ Q' F A+ I" L& ^) _
& |2 s9 N) f, b1 J% w: |; @
dp.rgvarg = pokeVariant;0 O3 L0 r7 s0 J5 {" X6 r
dp.cArgs = 3; 7 `6 h- x+ u/ w0 a9 `7 y; h" r/ O+ U dp.rgdispidNamedArgs = NULL; % a6 |4 z; J f! c1 V U dp.cNamedArgs = 0;) ^# u. ]3 I* i
8 J- v3 M' i% u8 S
// Call IDispatch::Invoke()8 ^" }5 M5 ~) B
; A# {# x" }9 t% @ y hr = m_pDisp->Invoke(6 g( O+ y2 o" Y# `8 W9 R, ^
pokeID, ) t$ {7 ?: w7 q" Z0 R IID_NULL, 6 v( b+ @7 U/ Q/ f. I5 k2 c LOCALE_SYSTEM_DEFAULT, & I3 y$ P* n" A: b! S% b$ I DISPATCH_METHOD, I; u. B( t# G+ A6 F7 s &dp, / e Y+ B* L3 K& D; Z! b M NULL, 5 z+ \7 [/ L+ `, C1 ] &ei," p2 P# y$ \2 U
&uiErr); `: d. f: y6 E, h% H& b `8 P' h. N# V7 F
SysFreeString(topicStr);, J9 F: p' m; H6 i- Y
SysFreeString(itemStr); 6 C, V, {1 G8 c% x( C% ] SysFreeString(valueStr); 9 c/ ?9 T- D& a7 F1 J% R m, y9 V" q
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???% w) C' v9 @& ^ p2 b. P C
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????/ J) z& x% Q4 Y% R! s
! S2 F: I4 I5 S' T, z) l, n
4 }7 t& o' \/ i$ L& X5 i
2.这是request的程序% p! b0 s' I6 L# m
// Request a value from Extend 8 b. y# j+ R- b, V8 A" Z: q//" S$ I0 Q4 f$ u/ W) Z1 k" p
// Initialize the variant that will hold the BSTR. Set the variant's# s& D% C: Y& Y ?8 R) j
// type flag to indicate the fact that this variant holds a BSTR. Place the : I* u& r; O$ n// BSTR into the variant structure. # C/ T& [& ?: i% k1 Z 5 ?, L+ @/ g. V3 {/ L3 {8 K requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- C- K' E3 J9 C. q- {
5 U P6 w' ^* r8 M8 ^0 _ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! ~3 v+ x; ~6 i) _+ k% x
VariantInit(&requestVariant[0]); 5 F3 ^4 t" G# u2 t+ C8 ~
requestVariant[0].vt = VT_BSTR;9 `, P/ g2 \# a4 H
requestVariant[0].bstrVal = itemStr; ! D6 R. Z5 d: p' T7 q/ D, C$ }/ A- w! e, f, n$ E; K
topicStr = SysAllocString((WCHAR *) L"system"); : B8 Q8 L9 w ~1 P% h( { VariantInit(&requestVariant[1]); _ E: ?, R# [% s0 m- R# F1 C
requestVariant[1].vt = VT_BSTR; & P$ r1 ~% W" f5 z, L+ C" ~/ y requestVariant[1].bstrVal = topicStr; $ ]: _; Y; s: d, C: Z- i5 g5 n: R) P9 H
// Set the DISPPARAMS structure that holds the variant.1 Z& O; b/ l1 Z1 p t* e
- q; A! k# c) J$ d& c& U) W/ | dp2.rgvarg = requestVariant;3 U. J5 j. R5 P! V) S! l
dp2.cArgs = 2;( r7 M6 G' m$ Z) I" U
dp2.rgdispidNamedArgs = NULL;4 C# O0 Z. a4 L% p
dp2.cNamedArgs = 0; $ k2 n a6 n \ w3 {( R" F! A8 L+ f ' P. ?4 E& w5 {% d+ K) K% x. N! w var.vt = VT_EMPTY; + y+ V4 _, Q8 [' J( r 6 _. f0 X/ G( ^# t! i// Call IDispatch::Invoke(); g2 b# D! w3 H4 W) `
! P) \3 ?9 V; f, d; x: y1 l! x$ S# w
hr = m_pDisp->Invoke( # _/ Z c1 @) U9 U/ [& x& R/ e requestID, & {( h8 g8 P& [* n3 o+ ` IID_NULL,6 F4 ]9 ?7 y% r5 [: M3 `! f2 y
LOCALE_SYSTEM_DEFAULT, $ {' T6 B9 |3 |: F$ u3 ]. o DISPATCH_METHOD, 9 v% N, l2 {+ p7 ]9 U9 ] &dp2, ; f$ j: Q: N, e; G U* g' L &var,9 ~; K: d( P5 Y8 c- Y
&ei,8 D% G) U& C/ C, T: T; v
&uiErr); # y5 [& v b8 g9 b 7 z% {5 L( D* o7 B, r* B SysFreeString(topicStr); S- Z% l1 L0 j7 z9 x7 b SysFreeString(itemStr); : R a5 K$ M7 g- V请问该程序是获得extend里面的哪个值?1 Y/ z6 v* {/ t @
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????