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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:- g" R1 J) h+ o$ f7 f. o
Name = (WCHAR *) L"Poke";" f6 p) j6 x' ?$ \ v
7 }& b3 S4 _" d7 p% i9 ]
hr = m_pDisp->GetIDsOfNames ($ E; C t7 D1 ]$ C% q
IID_NULL, // reserved$ X4 k4 L8 {" `! s
&Name, // Array of names to get IDs for
& o0 h& v1 N: l+ O( ] 1, // # of names in the array) l* |& x7 E* L- [
LOCALE_SYSTEM_DEFAULT, // System locale6 g4 ^0 v4 p5 \) d1 `- j4 _! W p- B
&pokeID); // Array of IDs to fill on output
4 ?+ `2 { B" T: N y( l - c1 ?/ H9 X* q8 Z
if (hr)1 K; x( g) V, U1 W& A) I
{
9 O- q4 W' r& N: } MessageBox ("Get Poke Unsuccessful");7 U$ l& m% m; }. E
return;# w8 o" u. c. @5 l( M6 h7 L
}
1 J; M. _7 ^- F# ^3 \
) y/ s& O' D" S; H: r/**************************传递数据给extend**************************************/
: c4 _ C! k8 M5 N, G! H pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 L8 }; ?; U2 T2 t& Z3 c
' Q- {+ f$ m9 R3 o; [9 ~
valueStr = SysAllocString((WCHAR *) L"1232");
0 J d5 \/ J. G7 J! _ VariantInit(&pokeVariant[0]); 9 c& a( b$ _! L, Z& o/ v
pokeVariant[0].vt = VT_BSTR;
4 }& U- o- `* I9 C6 Q( x; o pokeVariant[0].bstrVal = valueStr;
6 w. c0 @, A4 q6 {" ]0 i: @6 l) H. k- F- L2 z& J
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 j$ i5 H* z. f* |& y1 O
VariantInit(&pokeVariant[1]);
" n% u* U+ I- K# f4 r$ x pokeVariant[1].vt = VT_BSTR;
" F0 ]( ^" J/ B# E pokeVariant[1].bstrVal = itemStr;, ^4 }1 U, m- D: t: Y& m
: _. A& ^: o4 C topicStr = SysAllocString((WCHAR *) L"system");
8 T/ U9 w8 d. h! d$ Z+ ]% O) v VariantInit(&pokeVariant[2]); ( [ ^, j7 G6 Z/ W2 T8 g: V: Q: V
pokeVariant[2].vt = VT_BSTR;" J9 p: ~. c( B& z
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.- D) H0 Z7 c- L" [. Z- t8 _+ H
# }! J1 e$ j5 i5 Q
dp.rgvarg = pokeVariant;! f- h" q3 y) Z4 e
dp.cArgs = 3;
5 E) b. a% i# {9 P dp.rgdispidNamedArgs = NULL;' d6 B3 _' n5 ]: k- M. T4 R
dp.cNamedArgs = 0;
0 V* I* |/ y! i F# N
0 g8 n; Z: q1 ^ }- Y! M9 B* G// Call IDispatch::Invoke()1 m( l4 H i( l1 o; k8 P/ o2 V
: y4 x1 ? N# F5 B hr = m_pDisp->Invoke(
* S! e" {: |7 M' l, n l; L pokeID,
* H8 H/ z7 |5 p. T: y0 c3 N, ^ IID_NULL,9 H( s# l" p+ @8 A3 e* b+ K4 J0 F
LOCALE_SYSTEM_DEFAULT,
: I* l+ A% n3 L: C3 w0 c' T/ | DISPATCH_METHOD," Z+ ~0 k# {7 }4 o. E! d) a
&dp,* V6 I5 o( L- g8 a
NULL,
/ K# e$ z, e6 C% g/ m! T/ G &ei,5 S$ V- Z$ |- g+ [
&uiErr);
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SysFreeString(topicStr);
3 ~+ W. Q% ?( u SysFreeString(itemStr);
, X0 i/ ~# V7 n) [ SysFreeString(valueStr);$ w2 J4 U* G( @1 I" X
( u3 _6 G; T8 O+ F; g$ |. G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???
! X5 _- _+ p7 F& q% d* _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????) I- X5 k0 F+ V5 F1 R \& }
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7 m( S/ u5 V& i u* Z% `) A2.这是request的程序- C3 C; y$ l3 H1 Y, T ]- \% y$ b* O
// Request a value from Extend$ Q6 K% d, X s9 b/ \
//
4 Z! e( F/ A4 W3 i. \8 h8 L// Initialize the variant that will hold the BSTR. Set the variant's
) p* Y! f( @/ Z! g4 R2 J7 v$ D+ b// type flag to indicate the fact that this variant holds a BSTR. Place the
x. b, N" k, b: G// BSTR into the variant structure.
* Y3 d3 [( [9 v1 v% Z( |& U6 y$ E3 v% |9 `- V9 o
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);5 D5 E+ f3 }( [1 T
/ u+ V- S+ x1 C! s. F' ~
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
! L- q6 @' d4 o% `* q8 s VariantInit(&requestVariant[0]); 5 k6 o/ E! I. o5 I
requestVariant[0].vt = VT_BSTR;
# E. F6 E4 s6 T3 t: K. h2 P requestVariant[0].bstrVal = itemStr;. R/ P7 I# z0 \, O- b* e# O& `
$ \/ n) w. f4 O
topicStr = SysAllocString((WCHAR *) L"system");1 s x- P( E# F! R. F# {* I, J
VariantInit(&requestVariant[1]);
: q9 G' i- G: L( [$ t requestVariant[1].vt = VT_BSTR;
' {, ~/ n$ z" L: j# I requestVariant[1].bstrVal = topicStr;
& ~: S* p2 n" t; z% H( ]
" ]( _' x- I7 N) `- r7 G% V0 E// Set the DISPPARAMS structure that holds the variant.1 h2 B- j7 S% ]% c! e8 e
5 l; P; V, m# W( o. Q# J# c
dp2.rgvarg = requestVariant;+ J, ]2 L4 _" u# m/ i6 a
dp2.cArgs = 2;
- S _ f! A$ `$ R- |) t: ~ dp2.rgdispidNamedArgs = NULL;
4 W! X9 T% S5 p9 L. x. u1 G dp2.cNamedArgs = 0;
" Q0 @. z5 q+ I) e s
# X) }# q o: m, n var.vt = VT_EMPTY;# c# x9 o5 ^" D* f5 Z2 N! l
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(9 R4 k. E3 }6 O" J
requestID,* @$ X, O. @- N' G
IID_NULL,
1 P& T$ F2 c( P; L LOCALE_SYSTEM_DEFAULT,
! \* M4 _8 r! U5 O: X3 n4 g DISPATCH_METHOD,
p8 e% s: J; c &dp2,
+ a+ x# k! u4 M0 \2 B5 Q &var,1 ?1 y2 v; g# S; O* a8 B' m
&ei,
* n, Y/ \; u: ~1 {* v+ z/ q &uiErr);
* M# ^1 z9 D8 V. {$ h; n: p) J& R( k m
SysFreeString(topicStr);/ T4 B4 v5 }7 X1 s" A8 V! e6 |
SysFreeString(itemStr);
7 z5 `: c3 x1 g M7 T请问该程序是获得extend里面的哪个值?
! O' y6 D) z: ?+ Z4 U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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