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:# w! f+ q# t6 b' {, d/ |
Name = (WCHAR *) L"Poke"; 6 Z( r- l# H5 M4 a . ]; v+ w. i Y
hr = m_pDisp->GetIDsOfNames (1 V' `& D, A. p8 T A
IID_NULL, // reserved. q: V6 I$ y3 u( u, y
&Name, // Array of names to get IDs for6 p, }' `. o m# u, I9 f) u
1, // # of names in the array * X# s1 u. ?! r2 J2 c' z9 N2 p LOCALE_SYSTEM_DEFAULT, // System locale ( A2 |2 @8 x: \ M* ^4 p" W$ U &pokeID); // Array of IDs to fill on output' X9 U8 G' u% v5 Z3 {& J
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if (hr)+ `6 j x9 i9 ]; a! X
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MessageBox ("Get Poke Unsuccessful"); . h' I3 A3 w& e+ H5 w return; 6 W: E* \9 Q% O8 W4 J2 o }" c/ o7 K5 Z N1 c
) F" R# Z* U4 h/**************************传递数据给extend**************************************/ + D, e r* o6 v7 V7 P0 J/ Q6 Z pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); J& ?+ p6 X6 ^7 g4 w0 |8 ~ 1 E/ t/ {$ h. Y) a- V valueStr = SysAllocString((WCHAR *) L"1232");' p) T+ {2 v- _7 B0 {# v v2 u
VariantInit(&pokeVariant[0]); 6 u) @* ]2 N2 c+ C! F
pokeVariant[0].vt = VT_BSTR;9 _7 C0 o/ ^5 O, H# F3 B# Y! K
pokeVariant[0].bstrVal = valueStr;& w9 b+ w6 [, s
4 f( c4 c4 s% F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 [& t, i( S% P VariantInit(&pokeVariant[1]); 7 E r/ ^1 Q. U; c( ^3 g
pokeVariant[1].vt = VT_BSTR; & V5 P9 t2 S% n pokeVariant[1].bstrVal = itemStr;2 p4 W5 v2 ^1 B% G# w* X
$ b7 A1 H7 K+ ^3 F$ } topicStr = SysAllocString((WCHAR *) L"system"); " j7 S, q7 H8 ]/ P. M7 q) g VariantInit(&pokeVariant[2]); " u9 e! [. W% y. N' g
pokeVariant[2].vt = VT_BSTR; ; F* T, k9 S8 l! q pokeVariant[2].bstrVal = topicStr;8 G0 O# A! D Y. P6 F5 N. Q
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// Set the DISPPARAMS structure that holds the variant.1 S9 c t8 r. j w# T
# x# v# u' l6 B dp.rgvarg = pokeVariant; + o: ^" s. o) A r/ Z& H dp.cArgs = 3;( \5 c0 l% b, v% c% y
dp.rgdispidNamedArgs = NULL;& m4 X3 m3 Y0 `- }# R; O! t! E: q8 B# U
dp.cNamedArgs = 0; ( @0 W/ x: z3 e# M' B f) G# b; Y7 | v) ]$ r! ^
// Call IDispatch::Invoke()- B0 Z8 f- C4 A( W( f0 x
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hr = m_pDisp->Invoke( ( B1 C0 F7 l* E) r5 i3 L pokeID, : g9 c' k" [. ]" t ]! J IID_NULL, 3 j3 Q! [6 _/ C2 l. R LOCALE_SYSTEM_DEFAULT,+ l; _: y6 l9 G% b8 G0 L/ }
DISPATCH_METHOD, 8 t# G, ]/ T1 J& v7 ]7 c &dp,8 H6 _) q+ }9 M9 @9 {& Y
NULL, & ]% R% ~1 v4 C/ K; d* o0 s+ v. Z) L0 Q &ei, - w9 {2 e( K: d3 M2 b* n0 W8 d &uiErr); , w9 }* {) S0 A/ ?5 Q- K# n7 _$ \! G# Y
SysFreeString(topicStr);# K6 m# C, z. E6 L9 N
SysFreeString(itemStr); : `2 u# ~% i7 j3 H ?; ? SysFreeString(valueStr); & A0 U8 D* _7 E1 E3 I/ Q. @: d7 w. r8 w D" ^" t" s5 H3 T
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 ?/ k+ |$ s3 ~8 d$ _! M4 t! X
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????1 c! p) w3 O: @* }) I2 D6 {& u9 C
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5 v+ V' O. B p6 W) H2.这是request的程序 : j3 N) u9 v/ g% j5 l// Request a value from Extend d: E' W: N8 f( s6 K* d
//: ]) {1 a. q: h
// Initialize the variant that will hold the BSTR. Set the variant's- w7 h4 y) S/ a( ^( ^: z" p3 G1 O
// type flag to indicate the fact that this variant holds a BSTR. Place the+ {7 q& X6 T' X" {
// BSTR into the variant structure. 5 L; L' o; f; {/ @( d. J* V/ A" }! ~ 9 t$ R! B- p4 x" n- u: A requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); " @1 t2 v. f8 B 5 g" R+ i( O+ _/ S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " y, [: t9 z. ^1 |* y7 G VariantInit(&requestVariant[0]); % g6 L5 v7 P- w) H& l6 E! v( w requestVariant[0].vt = VT_BSTR; . \5 S- I2 w2 O3 k, G) y requestVariant[0].bstrVal = itemStr; , G; y7 e3 {7 t9 ^) J) n8 @; w F3 M. g' F1 V' P( H
topicStr = SysAllocString((WCHAR *) L"system"); + @6 _4 h; ]6 M3 q% G' u8 ` VariantInit(&requestVariant[1]); & D8 l7 A7 r# T% f1 \7 P G/ D
requestVariant[1].vt = VT_BSTR; ( D& _: a* d+ r3 a requestVariant[1].bstrVal = topicStr; 8 M; G) y6 s' |3 A2 b / L2 J- N; i% X# B// Set the DISPPARAMS structure that holds the variant.3 G1 p& P2 D3 d
+ \( o- P" b0 z dp2.rgvarg = requestVariant;/ B( ~* u2 j0 O9 b' A" D" V# C
dp2.cArgs = 2; 9 M e i a( D dp2.rgdispidNamedArgs = NULL; $ s+ n9 u. O% E, K. h dp2.cNamedArgs = 0; : w# j5 I3 S9 ]/ X% m& ?" n1 X7 D! K* ~- [1 q& U
var.vt = VT_EMPTY; ; \0 ]% @7 j; [3 J! \1 s$ m& Z: m6 w) c+ u. L5 Z8 G" N3 q2 h6 t
// Call IDispatch::Invoke() " ]) H9 D2 W; M1 @/ k 4 O8 E; i# y2 L, V: J hr = m_pDisp->Invoke( $ ?* a5 G4 T1 g) \& W3 }. }4 Z8 ~, G requestID, 2 c0 H$ h: |$ \& J IID_NULL,( r$ W) i% E: ?9 K& w0 z ]. j) V9 F
LOCALE_SYSTEM_DEFAULT, ; ~9 j& x6 C4 t& s% C, p DISPATCH_METHOD,- w- S$ r% j' b) Z% Q
&dp2, f# N8 c3 v8 ~* m7 u
&var, # X3 b$ g1 V4 j( C3 y% L, [8 | &ei, 2 G: @0 v5 C9 r4 W5 G &uiErr); ) g1 W# ^8 o: a& c0 y# k' T' x: [) X: A/ _! E& D" I" B* O
SysFreeString(topicStr);$ V4 @! w+ ]& I
SysFreeString(itemStr);/ p: X0 s1 `% M4 K! k5 g
请问该程序是获得extend里面的哪个值? 0 Y4 z0 h4 @& h8 r* o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????