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5仿真币
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 O& E0 C- U! m0 CName = (WCHAR *) L"Poke";
$ J9 h& P' h1 H4 ?
6 ~( t# W3 J; c c: k5 w! H hr = m_pDisp->GetIDsOfNames (
3 r x7 E9 @9 K" @ IID_NULL, // reserved
+ I4 t/ d+ Z* L& o7 E9 m' G4 J &Name, // Array of names to get IDs for: f V( ~# \2 C) ]. U2 ]
1, // # of names in the array
( y& Y5 Y2 [* r( v LOCALE_SYSTEM_DEFAULT, // System locale
* V2 {1 [# ]" `2 W+ m- P% n2 Y &pokeID); // Array of IDs to fill on output
& u- |2 z0 T) R/ D ; E B3 _0 u. O% g/ i/ ]
if (hr)+ x8 F8 a" j7 f' w
{
* J" Q/ j- C1 Y+ e6 A* B* j MessageBox ("Get Poke Unsuccessful");
+ w9 n3 ~) v* U- a return;
: B2 u& x9 o2 l$ Q' i" u }
; U4 u* c8 \& \ Y% P: V/ w0 z- D5 x2 e& i
/**************************传递数据给extend**************************************/
# ^5 m& U0 |# N pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
6 a1 b& P* f* n! E8 @
3 G: r6 w( W! ~7 [' x valueStr = SysAllocString((WCHAR *) L"1232");
6 Q( k! x3 _. O0 j0 r) t0 { VariantInit(&pokeVariant[0]);
0 ^0 Q: ~: B( l5 k$ X2 d! N pokeVariant[0].vt = VT_BSTR;
# d" z8 l' }, u! T1 d) ] pokeVariant[0].bstrVal = valueStr;
. u; N( }+ ~/ n& _# f8 @
: T# K4 n1 C0 f" _5 E6 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; L1 m v9 k+ M! ^% v VariantInit(&pokeVariant[1]);
% C. H2 Y/ F0 j& y% K: U6 P/ D: o pokeVariant[1].vt = VT_BSTR;* z9 _: r" c: Q4 o3 ~, Z2 P5 c# j
pokeVariant[1].bstrVal = itemStr;
. y1 o. g8 o5 A! ]% @! v& ^5 v$ g
' l3 a- o# D- U topicStr = SysAllocString((WCHAR *) L"system");7 ?( {) o9 U0 {1 Z t! I
VariantInit(&pokeVariant[2]);
( z$ w& V8 Z& j$ I ]9 j pokeVariant[2].vt = VT_BSTR;4 i2 {7 C5 z' o: B& F
pokeVariant[2].bstrVal = topicStr;/ b2 H- X: @2 F6 a$ a7 K* N
# Z% ~ @, }, w: H Y$ O
// Set the DISPPARAMS structure that holds the variant.
}) T) l: c# m. K5 N& L% f) k" X9 W& I6 F3 g, ]) W; A$ z
dp.rgvarg = pokeVariant;
4 |+ V2 n8 l+ u# `6 J dp.cArgs = 3;$ h/ H" [7 C) E5 Y, ~7 `$ p: C
dp.rgdispidNamedArgs = NULL;5 F' J& S* C, a* ]2 r
dp.cNamedArgs = 0;
! X9 ?, u/ x5 j& `, t6 [3 t! Z: Q
( E8 |* C6 U, E9 h5 Y" ~ S// Call IDispatch::Invoke()
7 D/ R. A1 ~; T& _/ J5 R
, K# h1 _4 a/ f. l hr = m_pDisp->Invoke(
' m! {/ U# R4 j& [' v# v0 \ pokeID,
; Y; d1 \4 H8 A IID_NULL,) d* N6 R/ U# e5 h7 u
LOCALE_SYSTEM_DEFAULT,2 V) A! O8 F& j) L
DISPATCH_METHOD,
/ r* J! ~' [% W- c% V' ` &dp,5 S6 M% g! y. m
NULL,
+ K8 p9 p, T K- g, k. \1 d5 t &ei,
6 V' q% H' g7 p$ C8 ~9 T* j &uiErr);
, f+ u( E: L5 _+ Z/ f7 G) ]: u3 o! O% V* i* p8 j5 o1 j
SysFreeString(topicStr);
- y9 ?2 A& T6 R% Y' x% ^8 ] SysFreeString(itemStr);
! Z5 N- J9 G$ E% _4 J2 j$ V! T SysFreeString(valueStr);( n; R- Y, u% |$ }9 E9 D. N+ B
9 Z0 I) s3 v3 M T+ q/ 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？？？
: m8 @. X4 M& C1 m0 k4 h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？？？？
" p4 c4 | l9 V' V0 s( v" f, S: z+ G! Z8 q; ]' r2 Z6 h( E7 r; V
C- h3 X8 K! O, x" [, {8 s2.这是request的程序) ]) b3 b+ I" e! q2 e
// Request a value from Extend4 o$ I5 e4 f7 w- t
//
/ E% H3 Z4 W/ n7 H# w3 z// Initialize the variant that will hold the BSTR. Set the variant's4 h. G: Q$ F3 x$ S3 a/ l
// type flag to indicate the fact that this variant holds a BSTR. Place the
$ b; X" ^( n" o- T4 ^* v// BSTR into the variant structure.
# _# i" a! S+ K9 X/ M. t& @, h% N, K! U A2 A& J
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
( m! {# R. l$ W# g: Q - b; L9 x1 C: z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 |) o" Q$ Y: m
VariantInit(&requestVariant[0]);
: j( J5 a) W4 s( F' J2 K requestVariant[0].vt = VT_BSTR;
! \' Y; @# N1 ]4 m9 Z2 \. @+ F: i requestVariant[0].bstrVal = itemStr;
& _) p: k, \7 o a$ A1 I j
- r; f0 | p0 N" C+ C8 ? topicStr = SysAllocString((WCHAR *) L"system");/ i9 G) \( Y i: D* S4 G$ @
VariantInit(&requestVariant[1]); . F; r# V, f8 L$ ^+ j5 o
requestVariant[1].vt = VT_BSTR;
" w7 o' h! } a requestVariant[1].bstrVal = topicStr;, `( _9 n2 R" |: ]2 z3 b( c0 H
, G7 T3 L& u; Z. f// Set the DISPPARAMS structure that holds the variant.
; A! m1 T) r+ M/ c$ K) X2 n) a2 \6 s4 \
: J! `; ?; u9 s' C, v; z dp2.rgvarg = requestVariant;& \6 R0 r: |3 S: d$ k6 r
dp2.cArgs = 2;
1 R9 {, U- ?4 J& a$ I7 X L dp2.rgdispidNamedArgs = NULL;9 S! u9 N" Z4 J- B \7 F& B
dp2.cNamedArgs = 0;
% j7 J- q/ E" {) F3 l) B. @' R& Q: }
, p& K& K2 Z+ `% E var.vt = VT_EMPTY;
4 A( |% o Y. \' p3 U
9 V7 r9 G/ e! [% j6 R( ?: v9 U7 a// Call IDispatch::Invoke(). C% e% }. e: T2 L+ I
; d7 ]. u5 w1 l8 x" Q3 f hr = m_pDisp->Invoke(9 N* W" n9 A* [2 `* E& i, b
requestID,2 L( z. m8 s9 b& ]0 z
IID_NULL,, ]4 N1 d$ D0 A: K, D' ]: b- s
LOCALE_SYSTEM_DEFAULT,7 c/ A W2 J x- F6 @$ |+ n
DISPATCH_METHOD,; W1 l+ A4 r4 Y+ W& D% T
&dp2, X4 q0 J. D" E% E: Y7 j
&var,
; l& V1 `5 u4 T5 A w &ei,
0 Z+ s0 T) Z" X8 g( m0 n, t; p &uiErr);
# ^* Y! k! o; C% \) A, U! m8 U
7 F H! K# f0 I6 O1 b" z" t SysFreeString(topicStr);5 V+ x) b+ q! s0 g, h2 p0 ~
SysFreeString(itemStr);! V6 X' n" k4 n i; P
请问该程序是获得extend里面的哪个值？
4 b( h8 [$ u7 f2 P7 F; k0 N$ F0 |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？？？？ |
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发表于 2008-11-25 19:37:03
