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:
- X9 X2 o, \/ O1 B Name = (WCHAR *) L"Poke";
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+ i7 d$ e; i1 y& P$ A: y hr = m_pDisp->GetIDsOfNames (# ]6 X$ {' L: a4 e2 p/ ?
IID_NULL, // reserved
7 A, e. y; X1 S9 e &Name, // Array of names to get IDs for; p' B0 \5 Q2 h+ g1 h
1, // # of names in the array
5 V O* c- L" i+ Q LOCALE_SYSTEM_DEFAULT, // System locale
* `3 @& R! |8 [$ _* t1 }& N2 F) E &pokeID); // Array of IDs to fill on output
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' \) }" i: I: f: g- y! x if (hr)5 Z# v- c6 `$ k+ A [$ W
{
5 D Y$ N3 G- n6 K* e/ t MessageBox ("Get Poke Unsuccessful");$ b6 `+ d" L9 o- j2 {
return;( k: ?* G u& b, S$ a$ H+ {1 p1 K; n
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/**************************传递数据给extend**************************************/% r$ r: I: P9 c( L5 e/ i, a: G y, U
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 r% m) W9 ]- g; {
4 l6 G; |; t" I' U valueStr = SysAllocString((WCHAR *) L"1232");' d1 r6 o6 N9 @, X& g1 _2 g9 _& R* o' S
VariantInit(&pokeVariant[0]);
1 [; q ~# J* g/ X" I pokeVariant[0].vt = VT_BSTR;4 @3 y' A G% b$ X. w
pokeVariant[0].bstrVal = valueStr;
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6 |( Q- |* T& o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) O4 ?8 p6 C" [ VariantInit(&pokeVariant[1]);
3 [$ ?6 z& n7 y: f- m o2 v pokeVariant[1].vt = VT_BSTR;' t9 g+ p% Q" R4 X: |
pokeVariant[1].bstrVal = itemStr;
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. I& Z' S+ N# Y) S# R topicStr = SysAllocString((WCHAR *) L"system");- |" C1 Y$ [6 L) p
VariantInit(&pokeVariant[2]); ; H5 n3 s5 m- P8 `; Z0 m% D
pokeVariant[2].vt = VT_BSTR;
& l3 T2 }2 R$ L1 v6 { pokeVariant[2].bstrVal = topicStr;* J4 ~4 W+ y& `6 B% Y* r
7 Z( F# y. a' Q) X( A# b: s7 b* c" U6 H; T // Set the DISPPARAMS structure that holds the variant.! ~: D+ s: s/ P$ F4 m
- u2 ]8 r2 N. w! m3 V' R) i$ i6 H dp.rgvarg = pokeVariant;* V4 \7 C; e4 T8 p9 M! A; q
dp.cArgs = 3;/ `5 o4 h; {6 J4 ^& |- M
dp.rgdispidNamedArgs = NULL;+ W f" [ J) \" z; O
dp.cNamedArgs = 0;+ G# }. q3 G! C* y
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// Call IDispatch::Invoke(): S3 [4 u. ^* M4 t7 Y
( D1 Q% B& c: {# O* v hr = m_pDisp->Invoke(" X. I8 ?3 U8 z2 }. t' V3 q9 Z
pokeID,7 P; `7 ]# T3 e, c" r( Z3 K: F! h& L
IID_NULL,
2 S+ N7 h/ c2 a6 n2 L$ _# T( Z LOCALE_SYSTEM_DEFAULT,
* C0 L) ~! k, Y5 k0 D$ W, S) f3 m4 U DISPATCH_METHOD,7 v- N6 g5 D! D% t* L P k
&dp,
) t' O! ]. \9 W NULL,
6 W _, |: H& W# s. _& v# S &ei,
' m! x! p; g8 r) { &uiErr);$ Q' ^+ f. |$ ?, C
* C% C+ X' Z! ^/ v2 X SysFreeString(topicStr);
- {' K) N+ \( N) S. c/ l SysFreeString(itemStr);0 p1 z4 \, Z- @1 Q
SysFreeString(valueStr);2 z7 S* W2 h: N, Q9 ?) _$ I# g
6 ~! _( q( T1 d, d- k 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???0 J! C2 X/ g' U/ L$ [
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????1 K' E: w( u" y) t, G# G
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2.这是request的程序
1 K0 S+ H4 U* F p* t! w // Request a value from Extend
6 W- u# e+ F9 T/ h //
2 l" Y) B H) V. F // Initialize the variant that will hold the BSTR. Set the variant's# {$ H$ D, b I, u
// type flag to indicate the fact that this variant holds a BSTR. Place the
0 ?: A# U( Q; C% E6 e' S6 X // BSTR into the variant structure.' {: A' m- t) T0 `" W. K' U
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) r# c3 g& a5 M B9 q- S8 y
& v" }. ~/ E0 U1 l" l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
6 @. A8 ~9 Q" e VariantInit(&requestVariant[0]); ! V" c6 w: `3 H$ C# T2 T8 F
requestVariant[0].vt = VT_BSTR;
$ K/ j/ }, c3 b7 u1 e5 { requestVariant[0].bstrVal = itemStr;0 ^ h( w# d2 k W: r- G5 U+ Z* N$ [% B
& Y) P' V; ], E; n3 J topicStr = SysAllocString((WCHAR *) L"system");
5 F7 R, P2 s0 F; x- _ VariantInit(&requestVariant[1]);
, f; R6 y9 d9 w1 H requestVariant[1].vt = VT_BSTR;3 d2 w" J8 H) @3 ?& @7 f1 s
requestVariant[1].bstrVal = topicStr;
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5 E/ Y- H6 Z# V. q6 r+ T. T // Set the DISPPARAMS structure that holds the variant.' B- T5 H( @% p, c* e5 k& |
, l" h3 v; l4 a- m0 r dp2.rgvarg = requestVariant;5 ^1 x; H% D+ h( m+ j
dp2.cArgs = 2;, L0 k! g9 Z3 d# R
dp2.rgdispidNamedArgs = NULL;
. x1 H* M% ^2 { dp2.cNamedArgs = 0;
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; c8 D; o1 r) ~- O var.vt = VT_EMPTY;* H! j7 `( r8 h- \- }, [
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(* ?' X) ]$ p) H+ k4 f) H
requestID,
6 H9 v& e; d4 l' y1 v- ], @ IID_NULL,8 m6 f, W7 m6 [$ F
LOCALE_SYSTEM_DEFAULT,
% ` W) B Y$ u8 j DISPATCH_METHOD,0 Z) p- O1 Y0 j, F; ]+ B+ Y$ ]" l
&dp2,( I5 \( e5 O! n' `8 g
&var,
, F; ]3 Q; h8 H; ~ &ei,
8 U# c% k o# o/ @+ E' m4 @6 k' M &uiErr);) k) \; s( Q$ V
; y+ \( _8 }, g1 T" f& b) d5 F2 F SysFreeString(topicStr);
7 h2 o9 X4 \( B5 I1 q5 z* A# ~0 t SysFreeString(itemStr);
4 @! V' D5 U5 D2 Y 请问该程序是获得extend里面的哪个值?# t' m" F0 x+ Y/ ~1 K
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????
我来回答