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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：
: e9 X6 k: w( \7 eName = (WCHAR *) L"Poke";
3 f' n* j' O' l7 J3 L % z8 q( e5 v% e: M3 n3 b
hr = m_pDisp->GetIDsOfNames (/ d7 w: L; w7 }# `
IID_NULL, // reserved
3 C' W/ t2 ^. e5 ?1 n% v &Name, // Array of names to get IDs for, D- E0 p/ u% |; f7 v' ], X
1, // # of names in the array
* G& j! o% f+ }9 M" h9 a" e! f' u LOCALE_SYSTEM_DEFAULT, // System locale
* C( x! v! q/ { &pokeID); // Array of IDs to fill on output$ ~2 v) E" q: R; T) D: n& H8 Z
* M" V" E- k, A# F# k if (hr)8 l9 E$ T6 p _/ \" ?( J
{
! o" D c6 P( ^. d* a- ]% w MessageBox ("Get Poke Unsuccessful");2 Q% [6 s* B! x% p
return;9 y5 c& K- i6 G9 Z3 }/ Q
}; ^6 Y1 Z7 G( ^! M* d4 A
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/**************************传递数据给extend**************************************/5 o9 R8 s k' F0 d& G( m0 X/ }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
+ Q* f( L" o: X) q' e VariantInit(&pokeVariant[0]);
; \; |0 k2 Q9 q; f$ l* I pokeVariant[0].vt = VT_BSTR;
* |8 u; M0 k5 k5 l4 X pokeVariant[0].bstrVal = valueStr;& q8 P5 l5 Z2 w% }4 H8 k/ C& c
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
1 A8 Y y5 m L8 T- y$ q, j; M VariantInit(&pokeVariant[1]);
' E8 c F4 k. y4 l pokeVariant[1].vt = VT_BSTR;" {) I; G# m( R% R
pokeVariant[1].bstrVal = itemStr;6 ]% B8 U, K6 R( U( q1 J
4 c i6 X0 K; b4 j9 t/ d topicStr = SysAllocString((WCHAR *) L"system");
+ y6 {# A5 l/ w! d( p' G, d3 }$ x VariantInit(&pokeVariant[2]); 0 u, A% U4 Z" ?! f9 d' s9 @7 b
pokeVariant[2].vt = VT_BSTR;
3 _( I, {* t6 u pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.) a" q. V! x6 E" l; V1 a
) G6 u& t& C/ Z. E% [. f dp.rgvarg = pokeVariant;) F3 Z' A; H3 n7 x
dp.cArgs = 3;
% [, f3 M1 J9 Y1 {5 g dp.rgdispidNamedArgs = NULL;! V0 @9 ?7 w) s- \1 A' ?
dp.cNamedArgs = 0;5 a @. e" a& k i- g0 D
: ~" o5 b, {3 w3 q: D' B- C _// Call IDispatch::Invoke()
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* b& m* r( d% g+ q( W hr = m_pDisp->Invoke(! Q3 ?+ n( v0 s: c1 m3 u& L5 s# A
pokeID,
" O+ h3 Z- e& u" j9 X IID_NULL,
) B) X% L7 Z! G4 } LOCALE_SYSTEM_DEFAULT,
9 j* k, T) s4 g* A' O DISPATCH_METHOD,
3 ~2 {3 ^* J8 ]( a( k# X! o &dp,
$ A2 j# K5 Y7 u2 B NULL,, T9 r+ D- s2 O- ^# t
&ei,% d& L: x0 {; S% J% @' }
&uiErr);5 ]; M1 e8 {. ?7 K5 p/ B
# l6 W+ }" U z- n9 O
SysFreeString(topicStr);. d4 d% T0 X2 Z/ ~
SysFreeString(itemStr);
$ ]; u" v; [: t% ]* p SysFreeString(valueStr);
. f% Y" ^1 _5 Y. l# ]6 M2 p% q7 N0 | z6 r# q' _: Y
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？？？! J- q# g+ o9 K9 u5 A# ?( g
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？？？？- h0 P+ b9 l. T# [# j
1 W4 H$ L" i& K* `5 W5 ?8 v
. h; ^8 v" g( C) A6 Z/ L- T2.这是request的程序
F' B8 D( d, B" ~7 f& a// Request a value from Extend+ C, f$ F+ I# Q( Z- N
//( T/ z" {0 w' a1 _
// Initialize the variant that will hold the BSTR. Set the variant's" X8 j) b2 S# v4 \7 I
// type flag to indicate the fact that this variant holds a BSTR. Place the+ d/ M5 E) H- \$ A- T" T
// BSTR into the variant structure.
# D0 q+ e5 Y$ ?! ?! B( V6 O' @+ ~/ z# ~9 ^& C& e
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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. U7 O& N; S/ F! \ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
. D& M- G- }9 y _! J5 C8 q VariantInit(&requestVariant[0]);
5 n7 m Z L1 r: J' ]) N requestVariant[0].vt = VT_BSTR;
4 R" O% ~& X. F& a+ l requestVariant[0].bstrVal = itemStr;
6 B! s* m+ ~+ P4 K M6 _% M4 e
, s) p- L, T5 q/ ]5 R2 z. _/ q: a2 v topicStr = SysAllocString((WCHAR *) L"system");
# |( K7 N) I* h; W+ c2 {0 ] VariantInit(&requestVariant[1]);
3 q) u( P, l9 Y5 Y# E2 \" j' X requestVariant[1].vt = VT_BSTR;# }3 u! f2 z) F; j. }$ H% L
requestVariant[1].bstrVal = topicStr;3 d& x) l0 u% ?. ~
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// Set the DISPPARAMS structure that holds the variant.
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5 r* [5 C F0 R) v dp2.rgvarg = requestVariant;
- ~1 r0 F @$ O6 X2 U) Q( t9 [+ ~ dp2.cArgs = 2;
% i8 {6 a; M1 h: A$ y4 O( { dp2.rgdispidNamedArgs = NULL;
t ?) k) k) N5 ~7 C4 t/ X4 d! v dp2.cNamedArgs = 0;
* i1 D& S5 w+ `1 S6 [: h
! L# y, r, w! p+ m0 C var.vt = VT_EMPTY;
* ` F. v. C/ X" B6 L) v+ F8 i, X9 q
// Call IDispatch::Invoke()2 N$ p$ ^4 k3 k* Y2 p: @" f: o: F
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hr = m_pDisp->Invoke(- V$ c# e! H" Q% c6 I
requestID,
& [, n c2 C N IID_NULL,$ }- C Z# H- J6 Q) Y
LOCALE_SYSTEM_DEFAULT,' N+ g8 v" z' X3 D5 O9 B# V5 j
DISPATCH_METHOD,4 k0 m1 G) \7 N# j
&dp2,
. P3 ? `5 g6 y9 I, n &var,# o0 G$ |% E8 `2 k
&ei,
0 u6 }/ B4 E# s3 @5 y7 s' T* k &uiErr);
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SysFreeString(topicStr);
/ @* c6 v$ ?, E* _ SysFreeString(itemStr);; X3 Q1 z; `$ ~/ p. Q& ?' c
请问该程序是获得extend里面的哪个值？
' L) C& \% i3 a. j1 ?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
