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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:' x% s0 ]1 K) G# b1 i7 E
Name = (WCHAR *) L"Poke";- J6 ?! G& w/ ?7 ]/ K# e1 c1 I; A
" G* c% V7 ?, \$ v% D2 P# L hr = m_pDisp->GetIDsOfNames (( `, E% r V4 m$ Q% S7 d) h f
IID_NULL, // reserved1 L4 W6 l; T) ]+ K4 L
&Name, // Array of names to get IDs for
# {# |4 T2 A/ e3 M& r& A* |; u 1, // # of names in the array
& F8 R4 |# o: I" ~2 k: v4 N- h LOCALE_SYSTEM_DEFAULT, // System locale
. J7 b( {" m8 I# K5 A &pokeID); // Array of IDs to fill on output
+ H% G5 V7 w0 M
6 P) b4 U: D) b( P5 r. E/ V if (hr)5 {$ @( ?$ D- V
{
- t; {8 c( Q. P- b MessageBox ("Get Poke Unsuccessful");$ L. w4 y/ l- e" t5 D" Q
return;
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/**************************传递数据给extend**************************************/' ]# r; [ w5 S6 @. l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 S4 S7 o9 y+ T* y- C/ M' ?
' d3 ]! v: j4 I6 e5 L
valueStr = SysAllocString((WCHAR *) L"1232");+ w, e1 L, f; Q2 {
VariantInit(&pokeVariant[0]);
. ~: z2 q' @) B+ o% ` pokeVariant[0].vt = VT_BSTR;! m8 \" G; V' l7 c. m$ t
pokeVariant[0].bstrVal = valueStr;) o4 @4 b( T/ _& f
9 T2 j, e/ x. P+ @ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
7 z3 b+ A! K2 ^5 r1 F VariantInit(&pokeVariant[1]); ' l4 I. v6 O2 Q1 v# K
pokeVariant[1].vt = VT_BSTR;
! L5 D+ m5 R4 w, X1 E pokeVariant[1].bstrVal = itemStr;
5 H6 I( b6 ~; ?! C
3 n. b7 C. E7 v4 ?& l9 W! v" u. K topicStr = SysAllocString((WCHAR *) L"system");
|5 j' L$ _& b* a- Z8 O VariantInit(&pokeVariant[2]);
$ R* f; |, H( O& P4 A: V; ?# }$ P! c pokeVariant[2].vt = VT_BSTR;
0 J) q1 c0 e2 t, U1 U pokeVariant[2].bstrVal = topicStr;
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6 k6 j3 {' b2 i- k* d. t( e// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
' w* K9 n" S$ c8 s dp.cArgs = 3;& p- b; o i& {! {# D+ [
dp.rgdispidNamedArgs = NULL;3 q/ e* d6 y2 E
dp.cNamedArgs = 0;2 Y; a p' r; g3 S% X7 V
* U& Z4 f( p D// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
7 J' g! r. Y8 B; m/ p pokeID,% y. W9 r. \! y6 V( _9 P5 @
IID_NULL, s7 z5 W' ^. o T8 q$ ^
LOCALE_SYSTEM_DEFAULT,' q8 C7 J: U% b$ X: g: S3 G
DISPATCH_METHOD,# M- H8 U* K4 H
&dp,
: r* w# [# ~1 j3 w% U! Y7 O) F% ?2 Y' v NULL,
" O# E7 x. O# a. n: ]9 |- s &ei,2 d5 i) T4 k/ Q: A, @/ F$ s
&uiErr);, U3 f) P2 q% R
4 P8 J6 X* r2 v) t# H SysFreeString(topicStr);
* Z. @4 X% y6 w- B) ^1 `; T SysFreeString(itemStr);
4 P6 I" D0 F( ~( A, {$ q SysFreeString(valueStr);6 n- N0 R( T$ s1 l* n$ F7 d1 h
' F+ F. o6 l$ }6 E5 W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???
* n7 H) C. M4 u' o3 T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????9 W5 z/ L `# S& V; h
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2 a0 ]0 R; J1 h% p5 }. P, i2.这是request的程序8 q/ @' |: k0 c
// Request a value from Extend3 Z0 H* W+ Q0 h, ~9 n, y
//
9 _7 ] |+ b" K$ W// Initialize the variant that will hold the BSTR. Set the variant's [( U3 S* b' x1 k& D
// type flag to indicate the fact that this variant holds a BSTR. Place the
6 P1 q3 O3 W" i$ u( c- f// BSTR into the variant structure." e0 h9 {5 f; p3 Z) n& Z$ }9 L
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
4 n! o, [, E* b: l4 D* T VariantInit(&requestVariant[0]); . R8 t" p( Y8 f: D
requestVariant[0].vt = VT_BSTR;1 H! ~4 R8 q' _' }7 m* I
requestVariant[0].bstrVal = itemStr;: A- ^% V! ~$ q a' K
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topicStr = SysAllocString((WCHAR *) L"system");
: A; ?/ \4 F+ ?; ?; p VariantInit(&requestVariant[1]); ) D+ }. J' E# v! q0 X
requestVariant[1].vt = VT_BSTR;
* J) R0 U4 h0 S& j; ?. C% u requestVariant[1].bstrVal = topicStr;
3 a1 P8 }6 ^0 i; G" z# ]4 M" r
+ J: H! Q' [7 u B+ u& o/ n// Set the DISPPARAMS structure that holds the variant.
" H) T! e1 U7 ~0 v' ?
' b) Y& d7 A5 h% ^5 D6 A dp2.rgvarg = requestVariant;. {+ } E% U9 l' ?+ q" y9 o
dp2.cArgs = 2;
( A& c% e* n* P# [' O dp2.rgdispidNamedArgs = NULL;" L2 J4 f+ z' ^0 ~7 u4 \, i6 v: g- w4 w
dp2.cNamedArgs = 0;) u2 \, W$ j0 D8 o
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()% [! f- Z6 V1 t2 P: ?2 p
# @9 ~! B7 Z1 D3 V: ^ hr = m_pDisp->Invoke(6 z7 \ S5 \( p! B8 T
requestID,
" p& G8 }4 V! N# Z v' I4 Z6 j1 H IID_NULL,* O4 k5 \& U8 J: w
LOCALE_SYSTEM_DEFAULT,
. E' C4 \6 O) G2 H8 |* \1 C/ \4 ` DISPATCH_METHOD,
) A' c! m9 A. P3 {5 a &dp2,& n1 M, m: b# E) z. l! o6 G, z
&var,
" c' x4 f7 R0 Z0 ^" _: v &ei,
# B* T z/ j! Z1 d &uiErr);
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8 ?& i6 \( c( G. h( S& ?! d SysFreeString(topicStr);6 c' D+ Y3 u7 T/ D9 o
SysFreeString(itemStr);4 i9 \ I T- g7 N& i: X
请问该程序是获得extend里面的哪个值?
& u5 u! A) R1 w( c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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