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: - d. V1 Z/ @2 u% q: f8 k) @Name = (WCHAR *) L"Poke"; n, m# N6 k) L, _
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hr = m_pDisp->GetIDsOfNames ( 7 @$ _# R7 b4 f8 \9 U# O IID_NULL, // reserved , @. m% d7 s; O- f1 ~' V &Name, // Array of names to get IDs for; X/ T8 N n' I. s1 G
1, // # of names in the array ; p2 b- v9 F+ O6 y LOCALE_SYSTEM_DEFAULT, // System locale3 {: G) v& m' H- H5 `8 ~
&pokeID); // Array of IDs to fill on output, U5 ]: P$ L* ~# b' v( w6 ^/ y
; U0 G* h7 ]+ S- m2 z5 O if (hr)% e r" n* H* S2 `( |6 H; p
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MessageBox ("Get Poke Unsuccessful"); $ T5 V! b) h6 m4 @8 s9 F, v7 l return;1 I4 A7 X6 E* B7 h
} / K$ f% Z, T+ Z4 q" M ! E: r; M. N4 A/**************************传递数据给extend**************************************/ `! d" k$ \5 } pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ A0 U a! m1 `" c6 b: |
' }$ y! m; a3 m' l! i valueStr = SysAllocString((WCHAR *) L"1232");& P- m7 S8 X% v- c% L* D2 z
VariantInit(&pokeVariant[0]); ) u; k7 W8 c( h9 ?/ w3 V
pokeVariant[0].vt = VT_BSTR;5 v; t$ Y( O9 m3 t. G
pokeVariant[0].bstrVal = valueStr;3 ~/ }: Z' Z. H& F
; f3 ]0 f) k. q) T" e# p# p4 ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 d6 _ k, l- s# U2 f
VariantInit(&pokeVariant[1]); : ~/ z; ]+ x: x" g3 O7 X- v pokeVariant[1].vt = VT_BSTR; + f. p; K* Z7 w) [" k* \$ y! k pokeVariant[1].bstrVal = itemStr; & ]: R3 l) ?4 U6 P. w+ W6 Q ; h/ S8 v" _1 L0 P topicStr = SysAllocString((WCHAR *) L"system"); : X. p9 m- K) Y) ~5 _9 y VariantInit(&pokeVariant[2]); # m v, z. @( K6 a1 t pokeVariant[2].vt = VT_BSTR;9 A2 {" H1 X z
pokeVariant[2].bstrVal = topicStr; ' a3 P* [8 T$ v) J% e. J / w7 U% ^6 I! L; n/ I6 \, i& t1 S// Set the DISPPARAMS structure that holds the variant. * ?' u4 y0 ~1 L: y# G4 h) u ) ]9 y4 o7 g0 G6 t" } dp.rgvarg = pokeVariant;* l) o" g! Q" D$ o
dp.cArgs = 3;6 Q& v4 N2 c4 U
dp.rgdispidNamedArgs = NULL; " L8 q9 _; r9 X/ l' E dp.cNamedArgs = 0; , j5 C% F6 j) z' _( z 5 P/ E; v1 K, o, l7 @) n7 g// Call IDispatch::Invoke()8 l" G) T8 Q6 s( k9 O( Y
- \7 f5 v g" K { o4 L+ j3 ^3 [ hr = m_pDisp->Invoke(& E' J" c5 j! {% W& }" Y8 {. q
pokeID,* w4 E" j9 `+ S! ^" q7 y
IID_NULL, }8 O" X3 _+ Z- {' F& i, v LOCALE_SYSTEM_DEFAULT, & A; F7 f! D7 ~6 g2 H& N$ E DISPATCH_METHOD, ( I& }) `, v3 d, |7 } &dp,9 ]5 U* J" Z9 ]$ J+ ?# S
NULL, l; N# U9 @2 g; f& x3 [6 {8 Z
&ei, ( b. C' `0 s' J2 ^8 l! ~6 ?( d$ Z &uiErr); 1 @! A8 l/ t1 H& u' H; J " Q) o1 |+ t' Y2 t$ X4 w SysFreeString(topicStr);4 V" X% ^1 m/ Z% V0 U1 \% M
SysFreeString(itemStr); " s9 {" y& w9 G SysFreeString(valueStr); # s4 Q a) Q7 w- ~1 D {* e. L# e; C. P3 d/ i
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??? 2 R9 q, |1 B) v1 ?2 W ~$ ~, {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????/ l9 q7 I9 i0 d
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9 k" j: w( ?. n; H8 O; M' |5 g9 @2.这是request的程序 ! ^5 O- y- [. _- ?& c) g% |// Request a value from Extend 6 ?: b* a9 l6 S1 _//0 J- {+ d9 ~4 k3 D0 n# O: I
// Initialize the variant that will hold the BSTR. Set the variant's 0 @. T% Q ~* E& e6 R& H5 _// type flag to indicate the fact that this variant holds a BSTR. Place the % z8 u& G2 k5 {4 _& W// BSTR into the variant structure.0 Y' \* ?" `6 {7 ?- q- H
% U1 T0 u. @5 s0 Z- C) D4 D8 q* Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : _6 H+ U) y+ b% }' J+ ^0 f C VariantInit(&requestVariant[0]); : d( Y1 Z3 h& H- g requestVariant[0].vt = VT_BSTR; 0 N$ _9 y% m W5 s8 g requestVariant[0].bstrVal = itemStr; " o6 q1 R# J' i: Y4 e3 ?) v ; E0 p! A5 I) q) I topicStr = SysAllocString((WCHAR *) L"system"); 4 M [( E/ y9 K9 L* W) R VariantInit(&requestVariant[1]); 2 }) K# I- f) f# b requestVariant[1].vt = VT_BSTR;& D5 c) M( `' _
requestVariant[1].bstrVal = topicStr; , T# P* W0 @) W/ i+ v2 M) a' a U6 j$ b
// Set the DISPPARAMS structure that holds the variant.$ {* x5 t6 d4 k. }8 X2 \
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dp2.rgvarg = requestVariant; ( x# t0 n# w! K dp2.cArgs = 2;8 A3 {( V7 L5 }) Z3 s. g& h
dp2.rgdispidNamedArgs = NULL;# B# ~% T6 J; q% \/ W
dp2.cNamedArgs = 0;$ Q: ^8 c( c- Z V' P2 U0 m
1 P8 J8 E+ a( r4 F! F' W5 e2 o L8 L var.vt = VT_EMPTY;7 N) v. [" P/ j5 F0 C" x( E
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// Call IDispatch::Invoke(), {! k- k- a( Z3 Z# r" t
7 X" b8 q/ C$ f/ B3 E hr = m_pDisp->Invoke( 4 ^5 X! h9 P( o' F* p+ e9 P. w requestID, 0 K& L8 e: f0 w5 P9 r IID_NULL,! W( @& |, H0 K* b [! X1 B
LOCALE_SYSTEM_DEFAULT, ! f) B6 Z% x! t S3 A: p. K, J DISPATCH_METHOD, & k5 n8 z/ z+ k& v( Y &dp2, / Y v, C E* d; S7 c &var,4 W' e7 q3 n6 F* Q
&ei, # v4 E% x! w. S! K3 J* k3 F6 u &uiErr);/ k) B2 H6 ]2 l" k8 \9 m
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SysFreeString(topicStr);; ]' M3 Q; p. O5 M# W& z# Q* F
SysFreeString(itemStr); # A# V4 j6 o" K0 z! v请问该程序是获得extend里面的哪个值?1 B" \, g) ~8 }9 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????