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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:
2 v! E m8 y9 nName = (WCHAR *) L"Poke";
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# O! s& t! x1 s* F$ D+ \! I hr = m_pDisp->GetIDsOfNames (" t& ~/ z7 A/ U4 n' w- g
IID_NULL, // reserved
1 P+ `" ~3 p* b3 m$ g &Name, // Array of names to get IDs for
, z/ ]. H7 `* i 1, // # of names in the array! k; m4 r% V; q. Q; z2 f
LOCALE_SYSTEM_DEFAULT, // System locale7 l+ z2 D5 t* V- [& \
&pokeID); // Array of IDs to fill on output
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if (hr)2 t% r1 }) [. Y
{
$ M: S; H. ]: o T MessageBox ("Get Poke Unsuccessful");& d- K) P$ W8 `3 U. A+ E1 A& J
return;. o9 Y, C$ ]7 ~# s9 }
}
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5 y N+ \" r' P4 ~# |' M! E/**************************传递数据给extend**************************************/
( N" o3 v- N. O( _7 ?8 h& b9 j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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; A, n0 p! Z" P7 |: f9 V valueStr = SysAllocString((WCHAR *) L"1232");
$ ^' @8 ?. k, s( L VariantInit(&pokeVariant[0]); ; w2 V) E% {1 e4 a
pokeVariant[0].vt = VT_BSTR;
Z6 X0 c# B( {# { Y pokeVariant[0].bstrVal = valueStr;3 U; E; j9 K$ ?9 J, m, A
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");) ^8 b- p6 P+ c3 m
VariantInit(&pokeVariant[1]); - U0 i1 P# W; e; f- I/ N2 Q
pokeVariant[1].vt = VT_BSTR;0 _% i, p9 a; ^' K& q! C4 b8 j0 v
pokeVariant[1].bstrVal = itemStr;* F5 S0 B( @ j8 _; w' x( }* n- H$ z
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topicStr = SysAllocString((WCHAR *) L"system");
" w- l6 n9 H g) H! K4 O& ? VariantInit(&pokeVariant[2]); 0 V5 H1 w# i$ D/ S0 W! P
pokeVariant[2].vt = VT_BSTR;
3 N- F: [3 {* Y$ ^5 Z+ t pokeVariant[2].bstrVal = topicStr;
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2 |3 N+ X7 v. P$ A3 s// Set the DISPPARAMS structure that holds the variant.
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: E" x5 ]9 `6 V( C$ i/ s5 I dp.rgvarg = pokeVariant;6 s$ [. f5 z* ?# k1 s1 w2 l
dp.cArgs = 3;1 q! {# [5 s7 p1 c x
dp.rgdispidNamedArgs = NULL;
{9 d1 ?7 Y# W( t3 e! t dp.cNamedArgs = 0;; H1 Y9 D3 F3 M" q3 c2 W& k! s x
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// Call IDispatch::Invoke()9 c* r3 q4 g8 R9 ?) o5 J
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hr = m_pDisp->Invoke(
" f" G. ~( g) t, p) O, r, x$ T9 D! [ pokeID,0 R) P ~5 m# B6 F5 p% ?
IID_NULL,
0 p) o' ~4 K+ e+ |7 r LOCALE_SYSTEM_DEFAULT,
: D6 I4 t; S9 _4 O0 j2 K3 L DISPATCH_METHOD,& i* d' a2 F3 p2 f
&dp,% R5 f: B2 D" e: r
NULL,0 h* J" l/ Z+ g5 l }
&ei,
4 q6 s3 ~' s" g+ L7 f3 g &uiErr);1 j' v1 E( e6 ]" ]/ F9 ?
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SysFreeString(topicStr);4 Y& a) I6 u" T* O5 k
SysFreeString(itemStr);
8 x9 E( t# a) D SysFreeString(valueStr);
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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???- e: Q+ a' N4 a: i9 \
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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3 X$ b/ [ X/ i2.这是request的程序 i* ? m; I9 |! y4 P' K
// Request a value from Extend. o- h7 x9 V7 S& Z7 k; A
//
# l/ Z9 `6 N5 x7 |// Initialize the variant that will hold the BSTR. Set the variant's4 V; d3 C2 ~7 W: ~* X" @7 R
// type flag to indicate the fact that this variant holds a BSTR. Place the, {' P$ u- h! Q9 o4 h% I
// BSTR into the variant structure.: v4 O+ L! @* ^
4 Q; o6 o$ s" o. M6 `' e requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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5 ?, q# D% S7 L9 z" A itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
- k4 x1 i6 y: a6 J& Y9 B VariantInit(&requestVariant[0]); + Z% X, @2 t% ]
requestVariant[0].vt = VT_BSTR;
% R5 F6 p+ c, V# B6 s requestVariant[0].bstrVal = itemStr;
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# h1 U3 d2 O m. A, Q topicStr = SysAllocString((WCHAR *) L"system");! {7 S% j5 F R0 w4 K
VariantInit(&requestVariant[1]); # N- }$ o) \$ t9 W# U( R
requestVariant[1].vt = VT_BSTR;
, C* d* w, V2 Q2 t7 ~9 z requestVariant[1].bstrVal = topicStr;
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; A; l( J7 `, s6 T t// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;
; J% l' v& r+ r( K. I: e3 c dp2.cArgs = 2;
# @: J; @1 B$ [6 _, b% e dp2.rgdispidNamedArgs = NULL;1 t# ~6 _* W% a& {! \% o
dp2.cNamedArgs = 0;
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- m, k Z3 N1 ~1 W3 J/ X var.vt = VT_EMPTY;, f' m, P$ q: v8 t( `% b* p) U
& u+ r; ]8 { _# a4 ]// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
" q' g# T+ U% @ requestID,& R( G. J. N, D% C
IID_NULL,
, C# V2 Y) S k, J: [3 o$ [ LOCALE_SYSTEM_DEFAULT,4 k* A* W/ E1 f6 ]1 ~1 R& ?8 l
DISPATCH_METHOD,0 R' t) Z/ U4 l) c0 M/ M9 E
&dp2,
' E" q) L) D6 F. E E &var,' j$ [% \, l m7 y8 v
&ei,2 ]7 ]$ S# P3 F5 d4 }/ K3 j
&uiErr);
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SysFreeString(topicStr);
$ U, M T- S# A SysFreeString(itemStr);
7 t) `5 L- ^, x d W' a A请问该程序是获得extend里面的哪个值?4 J/ l% e8 Z: z& }5 c& R
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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