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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:
1 p2 P' K: Z6 z* g" uName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (
3 G$ J8 P1 G( l IID_NULL, // reserved
% b; f) B$ O/ x* g &Name, // Array of names to get IDs for9 T ]& y% d2 G: {
1, // # of names in the array9 R1 R6 \ e$ I$ Q9 R+ l4 e" a: y
LOCALE_SYSTEM_DEFAULT, // System locale
# v- I" @: ^9 @( U! H &pokeID); // Array of IDs to fill on output
& \! j* p6 j) [/ A
9 r I9 i6 }& X( ~. b! G+ z; D if (hr)0 \0 h4 R; g8 F/ l b! g7 b
{
$ a0 A1 K. m# ~, p2 C# o% @( g MessageBox ("Get Poke Unsuccessful");
0 C" n: v T/ P return;2 s3 p: C$ J, v" S1 d
}
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/**************************传递数据给extend**************************************/
+ ?( e- c$ w# R0 E$ P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
# J- j* R5 \6 w: L" ~$ v5 ?0 X
2 t; ?7 v& H$ ^; D valueStr = SysAllocString((WCHAR *) L"1232");% W* N# h' S4 o1 K# l3 e- m* b
VariantInit(&pokeVariant[0]); 7 l8 H P- r# l7 f
pokeVariant[0].vt = VT_BSTR;6 i& L) m8 {4 U( g/ ~( M
pokeVariant[0].bstrVal = valueStr;
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 \6 K, y+ L, n! U2 S
VariantInit(&pokeVariant[1]); . ]7 v0 l/ }& ]1 j/ H
pokeVariant[1].vt = VT_BSTR;
. z' C' {- [6 i! h+ H pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");/ R0 M+ Y$ N+ \, o, H
VariantInit(&pokeVariant[2]); ) l! [4 w+ Q' p5 i
pokeVariant[2].vt = VT_BSTR;+ D' J4 d* S! r. n9 |8 }5 ^
pokeVariant[2].bstrVal = topicStr;
- h9 q$ l# C# H: z* S1 o9 u
1 }( B1 M, h7 K; z0 t// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;) F6 F+ s7 T5 u8 l5 u( J) D
dp.cArgs = 3;
" R7 Q; Q+ `3 E% ?8 R8 ] dp.rgdispidNamedArgs = NULL;
1 i) G- N" b" @% A4 l dp.cNamedArgs = 0; B1 {8 H% ?. T+ \- J( N1 e
* Y5 K) q* E: z& {4 S% Z
// Call IDispatch::Invoke()
, p9 [* Z* H/ j1 Q) o! S4 H
! S ^( r( {; J; w hr = m_pDisp->Invoke(1 `4 a( w9 `. `) k# Z
pokeID,7 P2 n, A$ F- [! ~
IID_NULL,! E6 v& V0 K* G7 P8 [
LOCALE_SYSTEM_DEFAULT,
( ?2 Y/ L' F, v# a+ h) ` DISPATCH_METHOD,
# k, Q8 D# S# h1 T9 c &dp," v, Z6 i1 h3 O
NULL,
: {( R7 t* @( |, @$ Y# B7 Q5 @ &ei,
( {; c$ }$ s- i, y" E- S8 W6 O &uiErr);: j: I( u, I5 K) ]! M' f6 M3 l- _
9 Q) l( T, T6 T+ {4 X SysFreeString(topicStr);1 e1 S0 d( u$ Z8 t$ W( u& {; S. l
SysFreeString(itemStr);
, j7 U+ K) S; I7 Z& L+ ~, _! o6 t SysFreeString(valueStr);
( N/ |2 l* c) i8 D$ Y# J
/ R6 M0 _3 }) e* v: G! {9 V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???! L0 p7 c( o, s: v4 d+ K$ k" r* b5 c
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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& B' K1 m+ i4 B4 {
* I; q/ u& u5 h, H# `. U0 Y+ ?0 g2.这是request的程序
$ Q- r3 h2 L, j. I* Y. X. M// Request a value from Extend
r! c P+ P* j8 T* ~//' e6 B2 C) E: L# b$ ^
// Initialize the variant that will hold the BSTR. Set the variant's; a2 H2 _4 O1 t; l9 b3 H9 E, h
// type flag to indicate the fact that this variant holds a BSTR. Place the8 T' A3 {( k+ W1 J
// BSTR into the variant structure.
: ^5 N! R g. z9 Q5 f' }- j
- L7 {$ A/ I0 ~7 J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
* @- p4 V* H3 Q3 r" e( E" f
9 f3 i7 ]' {- J0 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( @, o ]: s: I
VariantInit(&requestVariant[0]);
! _9 m( A, ]! x- x8 Y( l6 h requestVariant[0].vt = VT_BSTR;
; G- _5 G- t# b2 x0 ~" R requestVariant[0].bstrVal = itemStr;
, c2 B8 {9 K, R6 a7 Q8 ]8 O8 {; o; w8 F
topicStr = SysAllocString((WCHAR *) L"system");6 E3 a$ D) u& B. ^4 J" e0 b
VariantInit(&requestVariant[1]);
/ Q a$ r8 E8 T2 G, s$ s6 y% c requestVariant[1].vt = VT_BSTR;
, C' L9 I. n1 P" w2 O requestVariant[1].bstrVal = topicStr;
; F8 u! h& V3 h. n* K3 q* n6 v& T' t1 ]5 M- ?% [
// Set the DISPPARAMS structure that holds the variant.6 N. M1 l2 d. a% e" G! V
4 a; y( j- N* w: e. j+ z dp2.rgvarg = requestVariant;
4 `1 C- Y5 v# r! U7 C dp2.cArgs = 2;
; O8 M% `3 ~8 l1 W4 C7 a dp2.rgdispidNamedArgs = NULL;! T! y+ \( I F G; p
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;" N8 N0 ^: G8 ]: s
7 ~: h3 v4 w" r1 f' q: v
// Call IDispatch::Invoke()
' l' l6 q$ Q& j! C
6 m3 \1 b9 V8 J% A% i1 O3 [+ Q* c hr = m_pDisp->Invoke(
$ F2 X5 b# E- G requestID,8 p0 H0 r$ x3 S+ n1 v2 u5 W
IID_NULL,
" o: `6 K2 a$ R- |6 K$ ]9 F LOCALE_SYSTEM_DEFAULT,2 b. f) Z, u; D; X0 d
DISPATCH_METHOD,
% x1 F( D9 Z% M/ d &dp2,
0 v0 }2 S q5 {5 G! Q &var,* D: T7 y; k! U) _% q" }' `
&ei,
( M; }9 a$ L: v+ K1 @ &uiErr);) z) T5 c% s+ u/ V4 b [
, ~3 L6 k4 H' A. f7 D
SysFreeString(topicStr);
! w: Z, A6 b3 b9 A SysFreeString(itemStr);$ R3 h& r3 p! A; _0 Q
请问该程序是获得extend里面的哪个值?0 Q" d4 Y6 x- b- K, Z: 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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