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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:
) ?+ ] o1 x. p rName = (WCHAR *) L"Poke";
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hr = m_pDisp->GetIDsOfNames (1 e6 _5 P, g+ K5 x6 c' z6 @
IID_NULL, // reserved
7 q& q2 z( ~$ ]. \ &Name, // Array of names to get IDs for) W1 }8 {' p) ~4 ]; X4 q$ Q9 W& u
1, // # of names in the array# s: K, y: m. G4 M
LOCALE_SYSTEM_DEFAULT, // System locale0 J$ u t/ Q- s9 }: w( v' V+ j0 G
&pokeID); // Array of IDs to fill on output/ B9 d( t' w' q% p% D
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if (hr)
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- G; B' n0 ]8 A- F; K MessageBox ("Get Poke Unsuccessful");5 L8 W' H4 b: e" _6 @9 D' T
return;
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6 X9 V0 z) k+ N+ f8 w7 M' ~/**************************传递数据给extend**************************************/
6 r4 b8 E# ^ ]$ ]$ r pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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3 J E; b r( o0 `! x valueStr = SysAllocString((WCHAR *) L"1232");
6 O+ \/ t3 |* K$ w1 w! [2 l VariantInit(&pokeVariant[0]); / C' I' T, b" B: q
pokeVariant[0].vt = VT_BSTR;- |0 O7 ~0 n5 o" @
pokeVariant[0].bstrVal = valueStr;/ U8 I' j) e7 D. v* `
! E2 z" _6 r8 [1 m i% F% g2 m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 J( D) F# x) z6 j1 L$ T4 E0 l2 T VariantInit(&pokeVariant[1]); / [0 Z7 l @8 w# _5 Z
pokeVariant[1].vt = VT_BSTR;
! `1 J: {% Y) Z1 ^8 y1 W pokeVariant[1].bstrVal = itemStr;# P3 O7 v8 z' g$ z3 D2 [2 r
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topicStr = SysAllocString((WCHAR *) L"system");7 }" H+ }+ B' P& t
VariantInit(&pokeVariant[2]); . d8 @ r0 e% @, R& Z
pokeVariant[2].vt = VT_BSTR;
; H& D" d, ^1 s7 H ] pokeVariant[2].bstrVal = topicStr;" h g/ ^* C0 j- b1 A
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// Set the DISPPARAMS structure that holds the variant.
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3 ^0 {, v. r5 w dp.rgvarg = pokeVariant;
* H/ ~' ~- c1 i+ Q dp.cArgs = 3; b4 Z7 ~& y! ]& ^% p* }
dp.rgdispidNamedArgs = NULL;
+ V6 z' T1 M' ~5 @ F/ c! Y7 ^ dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()# i1 h2 t: M2 q( [
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hr = m_pDisp->Invoke(& P0 ]/ i5 e$ h. y0 j6 K! |* e% ^6 X
pokeID,! ?9 ~% G2 m. Z
IID_NULL,- g& _! L; X4 q4 g' ^ H4 q
LOCALE_SYSTEM_DEFAULT,8 s3 ^& j4 N }" s0 C
DISPATCH_METHOD,
; [& P" M6 Z% P) J &dp,0 R! `; q3 d) o5 U
NULL,' P5 q& \3 M# N; j4 ]
&ei,
0 ?/ ~, [& h: n/ y3 J3 Q &uiErr);
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SysFreeString(topicStr);4 k6 v z* y( |# }5 `! F
SysFreeString(itemStr);: v$ e. b# Z$ Y. a4 _9 C2 K
SysFreeString(valueStr);: `$ f% [# s$ q% Q) \' B- M
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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???
: t8 {4 S$ i, h1 D' N5 R. @9 V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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5 ]% x. s; }, ]" I: D" R2.这是request的程序 n( Y S5 t0 R
// Request a value from Extend
F z5 M$ T: i' l8 A//
: V. \6 K0 t: B$ y( @. U, Y// Initialize the variant that will hold the BSTR. Set the variant's+ F" @& n1 H0 s7 e( I- ?
// type flag to indicate the fact that this variant holds a BSTR. Place the. N; k# b; ^, ]3 J9 X
// BSTR into the variant structure.5 S7 w, V' H, D9 c) g
, l+ \" i. F7 D9 o7 A7 S+ C requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);. F( n: J2 H+ \" e0 K7 w
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
: n0 V0 Z" y8 n: h% k VariantInit(&requestVariant[0]); ! G" u7 J- n2 v$ H0 u3 e3 a
requestVariant[0].vt = VT_BSTR;/ u6 ~. o. T" B$ Q- {( v' d- i
requestVariant[0].bstrVal = itemStr;
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( T9 |9 ] a1 [% g: e& a: e! k6 M5 I topicStr = SysAllocString((WCHAR *) L"system");
6 J, w% z& `1 u& o# L VariantInit(&requestVariant[1]); 4 F, k$ e9 u9 W, O) U
requestVariant[1].vt = VT_BSTR;3 H0 V9 a ]8 {7 c. ^3 ]
requestVariant[1].bstrVal = topicStr;
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% m6 J7 e9 y o: l( \# A// Set the DISPPARAMS structure that holds the variant.6 o$ ` F! h% Q; [$ Z3 Y. Z
. \: {- B* d6 j+ v9 \1 Y3 w6 l dp2.rgvarg = requestVariant;1 e2 W, @! e& v Q) W
dp2.cArgs = 2;2 K, e2 U" w' M; x4 U# j3 z
dp2.rgdispidNamedArgs = NULL;4 T+ T9 H" R+ h, U1 p2 q
dp2.cNamedArgs = 0;" K% T2 l! ^! s
3 c4 a8 i# X! k% b* a) J var.vt = VT_EMPTY;
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_; N+ L; }0 C4 q// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(. W- O3 {, n9 o. @$ b% n3 C; M
requestID,
5 C3 h% {! g4 }$ }$ s! ^ IID_NULL,
5 V, [( k# B C3 g4 h; L( W9 p; n LOCALE_SYSTEM_DEFAULT,
: }) t3 A8 @" a: s- J DISPATCH_METHOD,8 w1 l, u! B+ ]% ^! x5 l4 o" _
&dp2,5 x: J& P. T; P3 s+ ]* L3 c) H/ D4 z
&var,
; J& I8 \4 r; @ &ei,
/ C3 m# X& z" W8 X: X &uiErr);0 o) E% L' u2 Z
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SysFreeString(topicStr);1 t; P# m2 ]7 ]* O( h% K
SysFreeString(itemStr);* w- M. O, t8 Q- Q2 t9 H
请问该程序是获得extend里面的哪个值?
( P* f4 ?( l0 h8 W& ?/ h0 o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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