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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:2 {# D$ ~9 b$ y5 N' W4 j
Name = (WCHAR *) L"Poke";; n" h m5 U* X3 R
5 i0 r% H% y! [) | hr = m_pDisp->GetIDsOfNames (
! z' W, l0 i4 K5 u2 W5 ] IID_NULL, // reserved" v' \6 K6 B @4 L! C
&Name, // Array of names to get IDs for, D' w# R' o {" |
1, // # of names in the array
0 _; D8 n- z2 f- q( X LOCALE_SYSTEM_DEFAULT, // System locale
# J) d5 m" `8 }& H" O2 Y &pokeID); // Array of IDs to fill on output
, q7 M) i. e; X% \
, R1 c& _1 M; s5 j3 p2 V if (hr)& d l% h# @( Y: k. T0 N4 H
{/ B9 {) ^8 Z+ Y* U; X4 `
MessageBox ("Get Poke Unsuccessful");
, B) ~: I- G; s9 `% t return;& K% H1 N" D+ e" q1 C3 q
}5 U" x2 j& i8 r& @. a8 ?* u5 q6 C5 \
7 y6 ~ v2 Y) x; V+ ^/**************************传递数据给extend**************************************/
& s! q+ C8 ^$ t: N& F. K pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
1 n; r' O5 ^- a( }* U U6 Q
) M& w+ ]% F I0 j* d& z valueStr = SysAllocString((WCHAR *) L"1232");/ X3 X- P1 |; F: T. \
VariantInit(&pokeVariant[0]);
b- i: T$ S- p pokeVariant[0].vt = VT_BSTR;- R# h+ y/ U* e5 U! m
pokeVariant[0].bstrVal = valueStr;; u1 P$ `4 z- r' D
+ h- ^9 t$ O' ]; H i3 }- M
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); M; k; s3 [; ^# l2 P4 Q
VariantInit(&pokeVariant[1]); / S8 u! U4 @- X8 ?/ P, C
pokeVariant[1].vt = VT_BSTR;
: ]/ ?- x: B$ w2 |% ?4 p2 V: W4 k pokeVariant[1].bstrVal = itemStr;
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# Y! |3 x/ i8 o8 {6 A: Z topicStr = SysAllocString((WCHAR *) L"system");
( F) Q& ]9 {& ?+ e VariantInit(&pokeVariant[2]); 2 H& @8 a( m/ r( E' c- l. `5 e
pokeVariant[2].vt = VT_BSTR;& C: S6 s. r0 a; L
pokeVariant[2].bstrVal = topicStr;; Y( H4 [9 W) s V' U ?2 ~9 b) V
: q; I; a6 M! n( C7 Z ~// Set the DISPPARAMS structure that holds the variant.( r7 x% W7 x$ [: [+ v) l
- V2 C$ f* V0 K6 P dp.rgvarg = pokeVariant;" ~$ U" I! y1 d3 b$ ?0 W; _
dp.cArgs = 3;7 l$ t; k+ j9 R0 P3 }& I
dp.rgdispidNamedArgs = NULL;
( a& T" Z* P5 K, r4 V2 P$ K dp.cNamedArgs = 0;, p* |% e4 y! [. M2 `$ n; Z
! E6 w$ K7 m8 C6 ]4 a9 q( _
// Call IDispatch::Invoke()
8 Z2 ^- r/ \- g4 }, I% E
, [. s; z8 ^3 q( e% s# G$ e hr = m_pDisp->Invoke(
) a1 r7 Z" H7 Z: b- q) S pokeID,
k9 `0 n* Z! R% e6 T8 G/ I IID_NULL,
7 M W+ ^1 B e8 C9 |0 W LOCALE_SYSTEM_DEFAULT,
2 l- ?0 ]8 Q6 g' V4 J DISPATCH_METHOD,
2 R! N* K7 {7 c6 F4 m# ]) a! I &dp,% F# H- l ^0 K3 F+ a- k O
NULL,
' C! F& |9 z9 h. X& D; N &ei,
9 F! ^% D# \3 u7 t, t &uiErr);
( b9 V# u2 }/ J# z: [/ @
. I+ I* r- G3 f7 K) p0 L/ E: |( ^ SysFreeString(topicStr);
( T2 ]) c, {1 @ SysFreeString(itemStr);
4 v: ]0 H" y& s1 R6 W SysFreeString(valueStr);
: o/ Q0 t) T5 V9 c+ @* d5 ~8 R7 P) E: c8 o+ ]/ |" s; |8 d
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???
$ z7 w2 t3 X3 B, J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????
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' r! t/ i. W1 O0 b& N/ V$ v. N2.这是request的程序/ w' @- ^7 I. k* T6 I. o
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's3 Q, e, d7 k5 @" R2 H" m
// type flag to indicate the fact that this variant holds a BSTR. Place the
9 K! H' R7 j8 N8 _1 ?$ k6 F9 F+ x$ _// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
3 g3 y; ]: r' s' l * b5 Q( h0 p) J7 x0 x ~
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 \. V# T6 t! w( \
VariantInit(&requestVariant[0]); + f. L4 [) k# a* K+ y3 {
requestVariant[0].vt = VT_BSTR;. A2 ~7 G+ _2 X- V E9 ? `
requestVariant[0].bstrVal = itemStr;' g, H+ K, j- G3 |. b: b5 G7 y6 ?
1 t! m% k/ h+ J8 _1 h+ h
topicStr = SysAllocString((WCHAR *) L"system");
5 d! _+ p2 N, c& T7 D VariantInit(&requestVariant[1]);
4 C: k- z/ j4 [% `+ y+ }6 V requestVariant[1].vt = VT_BSTR;: ~3 L$ Y9 g' {( \4 x' G
requestVariant[1].bstrVal = topicStr;
/ [0 e/ Z+ S1 S) A% D1 U4 y. Q! W; f8 m" o' d+ x
// Set the DISPPARAMS structure that holds the variant.
: z S5 N0 P( R5 j" h
5 o0 L* ^- x' I8 w4 b) s( H7 r# ~ dp2.rgvarg = requestVariant;
2 ` J9 p' Z4 _8 ~ dp2.cArgs = 2;2 C2 n. a) f, h- [5 W8 K1 g* E5 G
dp2.rgdispidNamedArgs = NULL;1 ?, u& p( A2 X6 { D* }. M4 v' d
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
% ]* r# j# Z' o: @* ~( G0 n
- B* @- L# f8 q1 w// Call IDispatch::Invoke()# m! e# d6 W0 q/ G* O8 c: b
7 I7 [; b1 _8 M/ w/ h' ~ hr = m_pDisp->Invoke(
0 |. \. Y. N# L/ v9 }' F requestID,
" J" C2 [* k7 _; }/ {- V IID_NULL,
9 @; C$ Y; b c+ h( ] LOCALE_SYSTEM_DEFAULT,
5 Q8 m( e9 W! }% n# Q/ x DISPATCH_METHOD,
5 q9 a. e% B- {/ f4 h &dp2,
$ n- c) h% ^6 U4 [! a+ M" k+ m" T! [ &var,
0 V. \2 L. O3 [; T &ei,# i- G' c- h I0 K: |5 ]# `/ }& {3 e
&uiErr);
( x, J; r! \4 h" p' z( X# q( t; i; f
. j: N+ q. h/ t/ e. E* L: j3 b" u SysFreeString(topicStr);+ u9 Y# P, B" Q% h9 ]1 F: g
SysFreeString(itemStr);2 i9 p* n) a5 M1 N
请问该程序是获得extend里面的哪个值?2 f: o. [ r3 s
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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