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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：' t0 Z% k0 M) `6 n/ v' }2 K+ V% @
Name = (WCHAR *) L"Poke";
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& v: v5 N! [$ l8 A$ i1 u3 ? hr = m_pDisp->GetIDsOfNames (( b7 Z1 O* K- {6 J+ D& W% G
IID_NULL, // reserved
o6 E% B2 {% S# D &Name, // Array of names to get IDs for
! f) Y+ i; Z- S3 d5 \ 1, // # of names in the array
; _8 [4 q0 u1 m/ G0 A5 p* t! { LOCALE_SYSTEM_DEFAULT, // System locale. h* o) ]5 [+ W, }
&pokeID); // Array of IDs to fill on output
# C1 V1 Y! q; l8 J
( h$ d+ l' [, Q$ d# A, v if (hr)/ {' K4 w, h, t& k3 R* v9 d S
{
& I+ V. D6 j- z0 I MessageBox ("Get Poke Unsuccessful");
. M ?) ?2 t$ c6 \ return;2 z! P! ?( o4 i
}7 I* g! B: a1 i1 A, h
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/**************************传递数据给extend**************************************/
& Z. \' s9 c" D z8 d" W% G6 l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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3 N& |( U% [( K valueStr = SysAllocString((WCHAR *) L"1232");3 L d: M4 `: k& {
VariantInit(&pokeVariant[0]); ' u3 M" M$ L+ _5 |3 A( B# D9 v
pokeVariant[0].vt = VT_BSTR;7 \( U& ^. t9 w: e
pokeVariant[0].bstrVal = valueStr;
O0 `2 e+ p( r# U8 V" b6 G6 ?) ?# V: Y6 c/ v( b# Z& h: L! e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( [) V8 } j- `3 `1 C* ^ VariantInit(&pokeVariant[1]); 8 O* V" }% ~/ O6 Q1 Q
pokeVariant[1].vt = VT_BSTR;
, R4 }! X# G+ ^0 p, s pokeVariant[1].bstrVal = itemStr;3 l8 d) u; R# j+ L1 @
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topicStr = SysAllocString((WCHAR *) L"system");
' ]- K' ~7 j* S+ h VariantInit(&pokeVariant[2]); 3 J4 f2 W( Z I, f3 C
pokeVariant[2].vt = VT_BSTR;
$ W7 ^9 l+ o7 U$ N" p pokeVariant[2].bstrVal = topicStr;
' E1 N. K0 E2 r: r5 O: |9 r
2 m# S6 h& F0 E: @9 A& T3 t* M3 n// Set the DISPPARAMS structure that holds the variant.. y( b; E/ A1 U! N! y
! J6 f+ d" q2 k w$ l) G dp.rgvarg = pokeVariant;5 n; a% O d0 M! h
dp.cArgs = 3;5 N \+ R( Z+ N& g7 R% ]5 v) {
dp.rgdispidNamedArgs = NULL;9 A( K& @0 _1 l% g) ^
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()7 A% {, J( o- T1 s
; W% u2 Y0 h' m0 O2 a hr = m_pDisp->Invoke(6 s2 W& G$ \& f% j, z4 J- u* J
pokeID,
. q& T, |$ \, A5 w IID_NULL,
7 z1 Z" T! H8 i$ M! F/ V LOCALE_SYSTEM_DEFAULT,
) S1 i$ y& t {& U DISPATCH_METHOD,( {: L; C- ]# x) s
&dp,9 n6 S* l. j6 V! d0 P6 o
NULL,; m5 C9 u/ B2 C7 e
&ei,9 W, T: x0 ^( f3 k$ {+ I
&uiErr);
5 h3 D: B( P" `
8 A$ {0 ^& p0 W5 r- ~ SysFreeString(topicStr);
* g" n! |* y9 G; |+ h. I SysFreeString(itemStr);
8 G, k& S; \2 S SysFreeString(valueStr);6 R) `) G' P7 a1 ~( t
. v- e' D( g; @5 H$ a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？？？
' }, F& E& t6 }8 q! Q7 [2 i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？？？？5 i8 v: }* U C J& q
5 [8 I4 ]# t+ f1 h: C4 p
0 j/ v5 ?8 H% Q2 R/ H2.这是request的程序
& ?0 e! j ~* N& D- N// Request a value from Extend
) E3 T& x: F; F- t//
2 L5 E8 U! s- q/ D* m// Initialize the variant that will hold the BSTR. Set the variant's/ G# L$ ` a1 T, n$ t& [, M; M
// type flag to indicate the fact that this variant holds a BSTR. Place the# f' C$ O: \3 t9 x! Z( G
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
3 I9 k! |; H+ U
- M: H. U F+ s4 o v- {# w/ X* P+ |5 W! z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 U6 T) g) N) G; J! S VariantInit(&requestVariant[0]); + o* \7 E) K9 Z/ ?8 W* D% R, F
requestVariant[0].vt = VT_BSTR;' k) W5 I* J; r0 z' \, j( O
requestVariant[0].bstrVal = itemStr;. ^ M T8 i3 x P6 O# I
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topicStr = SysAllocString((WCHAR *) L"system");
/ d! F$ n: y; y, B. H3 N. X1 X VariantInit(&requestVariant[1]);
' z; m1 ~! H( R9 }: E# P/ i$ W requestVariant[1].vt = VT_BSTR;
/ r* v$ p6 V; r: C- h! s requestVariant[1].bstrVal = topicStr;) t" Z+ ?, N9 f; t
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// Set the DISPPARAMS structure that holds the variant.( k, K$ n/ K, {5 t$ Y
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dp2.rgvarg = requestVariant;7 D j$ ~( j2 ` u
dp2.cArgs = 2;+ T7 h; E- }6 u5 U; R! [
dp2.rgdispidNamedArgs = NULL; K" U, Z! A+ i+ w ?
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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$ N6 s9 s' Z4 u hr = m_pDisp->Invoke(7 n4 @. ]& D9 S- I( O% M3 ^% I
requestID,
; |; n$ [% s8 t, E IID_NULL,) x9 D& Z" Q$ B/ j: L% ^4 n
LOCALE_SYSTEM_DEFAULT,: Z+ T9 K1 N7 l( s9 I% x3 f' V7 Y
DISPATCH_METHOD,, B$ N) }$ b+ z+ S
&dp2,
' m6 F: D3 U @4 S &var,9 ^5 r# t" n" `6 C
&ei,
! t0 i5 y0 a% C+ J &uiErr);
; c5 p1 N! G1 z2 y, U$ ^) f+ j2 f/ B% w' q) s4 x
SysFreeString(topicStr);
( d6 A. `! r; w SysFreeString(itemStr);" e% e- N! u# J: f% B$ ?+ A' C* d
请问该程序是获得extend里面的哪个值？: G' L/ n! P' B& x7 T$ C
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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发表于 2008-11-25 19:37:03
