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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:, `* S; n+ e* U( K7 X. ?
Name = (WCHAR *) L"Poke";' y% a7 `% X* C4 L1 F9 X
& \) `2 j, x. h# i7 U8 _9 f9 k hr = m_pDisp->GetIDsOfNames () m0 S9 n3 Y9 ?- Q
IID_NULL, // reserved
1 }+ @& G" G& @& P/ m' X &Name, // Array of names to get IDs for
+ A: z# o# w8 l 1, // # of names in the array0 y- ~$ N& @) H
LOCALE_SYSTEM_DEFAULT, // System locale( z% d2 o& e5 O: d) ]4 C3 t/ K
&pokeID); // Array of IDs to fill on output% o. s, l3 N( D1 }% `* ?
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if (hr)
: m7 {3 B9 o. W) n4 V. a# N {
7 y; M9 J& D0 Y+ C6 \; }3 Q8 F+ ^. ^ MessageBox ("Get Poke Unsuccessful");
/ V* J2 n2 I0 G return;: \( l4 g) n* A. ]: x( u1 b5 f
}
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# r! ~6 _8 p2 f! H) G/**************************传递数据给extend**************************************/! {+ h1 [7 Z9 g! `
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
, a: \( Z" m4 Q) D- p. c- p
1 A9 f% I/ |& ~ valueStr = SysAllocString((WCHAR *) L"1232");
9 }& m! e: d$ V k VariantInit(&pokeVariant[0]);
6 ~! x1 c/ r3 \- e pokeVariant[0].vt = VT_BSTR;. {. J( D. i/ s6 R4 _( ?
pokeVariant[0].bstrVal = valueStr;
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* \$ h4 ^% B, ~& Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 ^8 j" h4 ~9 V, E; k4 L0 D
VariantInit(&pokeVariant[1]);
; M; z$ j; l* D/ d pokeVariant[1].vt = VT_BSTR;- G C3 W7 ~* t* z! |' |
pokeVariant[1].bstrVal = itemStr;! U- l, `+ r+ y8 j! f) A& M" u/ |
1 r2 Z: @' A' L+ D8 o topicStr = SysAllocString((WCHAR *) L"system");
2 l+ z1 ~* i1 r8 L% o1 Y VariantInit(&pokeVariant[2]); 9 U& s/ `! d- V9 v7 I
pokeVariant[2].vt = VT_BSTR;
& Q3 x( l* h) O" D. {/ d pokeVariant[2].bstrVal = topicStr;; ~/ H# X9 ~/ v5 Z
% x% U: Y- u- G
// Set the DISPPARAMS structure that holds the variant.; m. e( H1 o7 e" N' j$ T1 s
Z. d: o' M( y [; x+ f dp.rgvarg = pokeVariant;
1 U# x( h, J4 ~, W4 i dp.cArgs = 3;8 Y% D; ^" n3 U, o
dp.rgdispidNamedArgs = NULL;/ N9 z! b1 n% Z) u$ D; W" ?! i
dp.cNamedArgs = 0;$ f# d% z$ A+ S9 N4 y; K
; Z0 _; ^; `( P& k/ ~$ \& J1 L& A# p$ E// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(( G: ^7 y+ x% T% x) Z" n& }: M1 L
pokeID,% H' `1 m9 n+ C2 n) u4 O+ o
IID_NULL,
- h2 _6 ?. I+ P LOCALE_SYSTEM_DEFAULT,7 K5 g+ ]- H9 a
DISPATCH_METHOD,1 {, ^7 x: B1 d/ @) X) O
&dp,, T% x. ?, L3 h$ U5 D% f/ ?
NULL,- q6 B' I8 ~3 _. q7 `
&ei,
7 K6 m" _; }- A &uiErr);
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SysFreeString(topicStr);: J3 ?+ p' \0 Q9 X
SysFreeString(itemStr);8 q. n" J A% K& R2 M( x* H5 I
SysFreeString(valueStr);) L, G, `8 y- ]: z \, I, R
3 \; |* U3 C( x1 f4 z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???; ~/ P4 O$ m, n' 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????
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0 _% y8 j1 J9 t% s6 p) v6 U2.这是request的程序
( u0 H) O {/ @& W' I1 m% T8 J0 {+ s// Request a value from Extend9 y# E6 A$ N4 Y$ T5 _4 s7 f
//6 O. D% I# f) s' o+ g' |) Y1 g/ @
// Initialize the variant that will hold the BSTR. Set the variant's
6 W% i. w( f0 _$ T' @" O, @0 i// type flag to indicate the fact that this variant holds a BSTR. Place the
2 M" u, J4 y" f+ H, W// BSTR into the variant structure.
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. Y1 i8 h" y L' `# Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 A8 v; j6 t& o! h i6 S U
VariantInit(&requestVariant[0]); " I9 |% s: ?( `+ ?8 Z0 ~3 o, A
requestVariant[0].vt = VT_BSTR;0 ^! c/ [$ l; Z( _) T
requestVariant[0].bstrVal = itemStr;
% s# W! K |: ~& P) v0 |
2 G0 N% g/ i7 b' {! K( G1 g& ^2 j. i topicStr = SysAllocString((WCHAR *) L"system");
# g6 T, B6 J+ ~* W( g$ M( _ VariantInit(&requestVariant[1]); - X, u7 T8 o0 q% c o
requestVariant[1].vt = VT_BSTR;
/ C4 N: B- K5 W! I& m0 K requestVariant[1].bstrVal = topicStr;6 r5 i! v7 @9 M+ M
7 z7 P$ \# e1 V+ a// Set the DISPPARAMS structure that holds the variant.. ?8 ]9 R6 O4 D
/ r2 }. m9 x K0 u9 y5 a dp2.rgvarg = requestVariant;
5 l" E: Y2 M3 w( v2 C6 a0 G6 k dp2.cArgs = 2;
- ]$ R/ _) D; W6 T dp2.rgdispidNamedArgs = NULL;
& C* q, k( M, m8 f' E3 A dp2.cNamedArgs = 0;
! z& a7 h6 W% B. R5 C/ R1 u9 c, B2 G- f! Z% ]8 r; Z8 r
var.vt = VT_EMPTY;
$ N8 L; H* h5 K6 t
! V$ o1 R6 k* n// Call IDispatch::Invoke()/ q, P+ ~4 X1 b
+ y% _8 J$ R ]' c- F, D hr = m_pDisp->Invoke(
1 T' L, ~& \2 }7 z" m- f* ] requestID,8 s: U3 `2 Y2 G4 ]2 `. M" k
IID_NULL,
0 [. w. A3 c7 @/ B. j LOCALE_SYSTEM_DEFAULT,
& N4 j! J6 j& w DISPATCH_METHOD,1 i- }$ m: h9 V- \5 U
&dp2,, \- R4 F- `( n d
&var,* Y3 ?4 H M5 G0 R$ R8 p# R
&ei,' `5 _! W, S3 H3 k
&uiErr);
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SysFreeString(topicStr);
3 j) u' Z2 v$ Y SysFreeString(itemStr);
, \! K' E: F, ?请问该程序是获得extend里面的哪个值?7 U: p* A- [$ {! E
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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