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:
4 ^2 O' n9 x: o) T+ | Name = (WCHAR *) L"Poke";& N0 ?: n2 D9 ?! _5 [4 q4 c7 q
+ g4 Z; g) x# O3 w hr = m_pDisp->GetIDsOfNames (
5 R! f8 K3 m3 p) ~ IID_NULL, // reserved
" b9 M2 d7 D8 l. n &Name, // Array of names to get IDs for, D# k) c$ h2 u7 c& h, D. @4 D
1, // # of names in the array
+ A" S% a% ~8 m% ? LOCALE_SYSTEM_DEFAULT, // System locale4 H1 x2 y! b) M! j6 T* I
&pokeID); // Array of IDs to fill on output2 ]4 p- {1 O) H1 M" f
# s3 i) a4 Y+ w if (hr)
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MessageBox ("Get Poke Unsuccessful");
+ n- M, L* v' P0 P/ ?) o( p/ x return;5 c& l/ t8 K( U5 E
}. ]/ ^! H, S2 M+ N! N$ X
- u. e5 q" X% g* y9 S /**************************传递数据给extend**************************************/* c& V3 ?1 ~. q3 ~7 q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);$ m8 l j0 z2 p- c# |* y3 l: g6 m
# a3 w+ t! a* z P; x valueStr = SysAllocString((WCHAR *) L"1232");
3 L) y9 X6 ]: t8 _ VariantInit(&pokeVariant[0]); 6 _% P4 v" N1 m
pokeVariant[0].vt = VT_BSTR;
- f$ ~% H5 P( T/ n pokeVariant[0].bstrVal = valueStr;! K% G5 K1 B* k2 m- {2 t
/ a; v) C# |, m, p0 w2 a5 N itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
- j& z! Z: ^2 D0 [ VariantInit(&pokeVariant[1]);
. {5 V) y+ J1 \1 }. o, W pokeVariant[1].vt = VT_BSTR;7 a4 ], Z% a, ^
pokeVariant[1].bstrVal = itemStr;
* F* K, O* l& R) [ . [3 R o/ H- \2 Z9 W4 P6 z( A
topicStr = SysAllocString((WCHAR *) L"system");5 _; l" i; E( o) z# d/ N
VariantInit(&pokeVariant[2]);
" L3 K4 T7 R# v( J& W* h! m8 J2 o: @) Y pokeVariant[2].vt = VT_BSTR;5 I$ n! a5 v" W; X
pokeVariant[2].bstrVal = topicStr;( w) t2 r& ~' I i7 s. @% r, g% w" B
6 W: l5 q2 U2 X% { // Set the DISPPARAMS structure that holds the variant./ a8 G1 e, c4 M2 x- | ]2 B5 l j5 S
( i( f3 d. v" W: ~; v. V& d' t dp.rgvarg = pokeVariant;
S: @0 u, }5 p dp.cArgs = 3;! V2 v4 b4 j+ d2 f5 T
dp.rgdispidNamedArgs = NULL;
! s3 e7 c3 o6 C( l8 \7 u dp.cNamedArgs = 0;
! T" S! y6 |8 s* r2 X: x: M
5 E6 Z$ R7 P7 F4 U( O# \ // Call IDispatch::Invoke()
3 P& R' B7 G$ D9 \2 x) @. X
' H$ C5 f- f2 V+ k5 ] hr = m_pDisp->Invoke(- J9 _! ]+ V2 N3 ]: ]
pokeID,
) Y0 H& N. _5 T' x% o9 \ IID_NULL,
3 E! |8 A% F" R" V! x0 E LOCALE_SYSTEM_DEFAULT,
7 ?- w1 ?9 q( M DISPATCH_METHOD,
. R( n8 s+ v8 G; S# }; o &dp,$ s5 b% ]% r2 e2 ?
NULL,9 M* d1 v6 V) ?
&ei,3 N1 I* c8 l* l$ A4 u
&uiErr);
! e7 }- C6 p* a( A
5 R$ _: _8 V3 Z- I" a* U& O SysFreeString(topicStr);* M v0 V; w9 _
SysFreeString(itemStr);: [% d' O S- A% T) A0 }
SysFreeString(valueStr);) _( G# z2 N( M! V
9 f: ^6 X( F3 T c l7 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???& w" p$ F$ _: G2 G* Y
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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2 ^$ V5 E$ X1 s 2.这是request的程序% C* K9 }# r: p) C F% o
// Request a value from Extend
7 K8 m3 q4 h, [2 T) i: g //; M: w6 D2 a% p% ]
// Initialize the variant that will hold the BSTR. Set the variant's* s# N; a5 g; v3 Y) R1 p4 S
// type flag to indicate the fact that this variant holds a BSTR. Place the! V* q) B: e* H) l/ P/ P+ s7 N- f" T
// BSTR into the variant structure., S( |5 S- O n" _( c
) @* y' ]1 n5 Q1 [$ h
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' }$ p& v7 R' `, E
5 }2 u. {; T& f% o5 F
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
! u8 G" g; l, W0 s6 ~ VariantInit(&requestVariant[0]);
9 c& A) F& c8 X2 f( { requestVariant[0].vt = VT_BSTR;
2 {5 s' [+ p: d+ Y: z5 v; s requestVariant[0].bstrVal = itemStr;
& g8 t/ } t+ _- u) k- B# d * O+ U/ d& ?8 n0 {; u: ]
topicStr = SysAllocString((WCHAR *) L"system");" W% q5 U6 l8 |/ \' O: d) R
VariantInit(&requestVariant[1]); 3 _8 o+ H3 z4 C' p: _
requestVariant[1].vt = VT_BSTR;
: J* M1 V3 {. t8 D4 s6 N* ^ requestVariant[1].bstrVal = topicStr;. G0 o7 |5 _& G' A' w, E' w
3 i" D4 o5 E. m$ g6 n
// Set the DISPPARAMS structure that holds the variant.+ H p8 w* @" g) K. K* Q% G1 M
0 ^) R& o+ B9 Q; U# t% z7 n6 Z# a) t9 z dp2.rgvarg = requestVariant;' ?/ p0 \9 R4 v7 J7 x3 q) v
dp2.cArgs = 2;" X! [0 @& C$ D ?( B: q- T
dp2.rgdispidNamedArgs = NULL;
# T* J6 A, O. L% W dp2.cNamedArgs = 0;' P8 r( I6 O3 V0 {( {
( ^* H; Q8 m, X# R; H
var.vt = VT_EMPTY;
6 d+ ~- f1 \ s+ M) K5 j
, B" ?3 ~6 J" v5 M1 _0 o ? // Call IDispatch::Invoke()
, |7 O5 v& C/ Z, o # S: h( A7 }1 K$ j
hr = m_pDisp->Invoke(1 D7 q2 D' m' s$ v* d2 O
requestID,7 E% H7 w. g3 ^! X8 `: G5 P
IID_NULL,. S6 F- b" Y" P+ Z
LOCALE_SYSTEM_DEFAULT,6 m- M" u/ h7 n' m
DISPATCH_METHOD,6 l! }$ i3 h5 G. h( V
&dp2,5 o- `. i) R1 w4 `
&var,; c: a4 [0 X+ a5 n9 l' B' P5 P8 P
&ei,/ Z% z, R+ F+ ?+ h: O
&uiErr);
, {" I: n# K9 \ [& s. d& c
8 v* k1 O) b. Z; m! y SysFreeString(topicStr);
+ _+ ?, H% O5 o+ T SysFreeString(itemStr); ^8 Z4 R5 J/ q5 G" }9 A l& y4 q& T
请问该程序是获得extend里面的哪个值?
8 g; R+ U6 f! 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????
我来回答