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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:
$ ^1 \) W9 Y+ J9 c. i6 W7 C" `Name = (WCHAR *) L"Poke";
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' L" c* o) R9 n; n hr = m_pDisp->GetIDsOfNames (
* ~# L5 N0 f' q1 t IID_NULL, // reserved7 e, r/ t- u/ \& Q: X, q
&Name, // Array of names to get IDs for
4 K& P" j! K! A- Q+ @6 g, | 1, // # of names in the array
( H2 c7 L! t8 a2 g6 q LOCALE_SYSTEM_DEFAULT, // System locale `) p( u ~+ r5 @) E
&pokeID); // Array of IDs to fill on output: {1 [$ i( I% E& C5 v
4 V2 u3 h; r' b" ?& c% N if (hr)
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MessageBox ("Get Poke Unsuccessful");
3 g3 U4 G7 T6 O8 J5 p7 B return;
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/**************************传递数据给extend**************************************/# Z1 G/ ^. I: _" l% d! W) I
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");2 V. `8 u2 H6 o% U) A1 o2 ^3 U
VariantInit(&pokeVariant[0]);
8 r& R" N! ~4 E) C Z- E1 E \ pokeVariant[0].vt = VT_BSTR;
1 |$ {% P& R- ~) ~; q6 W pokeVariant[0].bstrVal = valueStr;
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~' _ }1 m$ D9 P+ ]0 w% e8 H" ? itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
/ c0 h. w. b5 a; u0 W" i VariantInit(&pokeVariant[1]);
8 H2 A4 Y( L+ [- K1 u2 U pokeVariant[1].vt = VT_BSTR;
* y+ j5 D" f# k- z7 d7 n pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");5 V9 i0 j5 r7 u& ]0 _6 Q
VariantInit(&pokeVariant[2]); : `2 U, `4 U, c8 x! Y5 P3 N- f. }
pokeVariant[2].vt = VT_BSTR;; {/ A- \' `! c/ O6 S8 Z! H
pokeVariant[2].bstrVal = topicStr;: U3 I( A; ]4 ?2 e: c
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
! H# C0 i/ T5 a* R8 {! d: Z dp.cArgs = 3;* k: ?, {/ V0 X: ` B7 x
dp.rgdispidNamedArgs = NULL;
- q4 N6 ~ e1 H7 d, V" M" e dp.cNamedArgs = 0;
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" s; {6 n4 F) J; L0 f% y' m0 y// Call IDispatch::Invoke()
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/ }2 P* e" q2 F- V* Q' Y! x$ q hr = m_pDisp->Invoke(
/ H& ~2 E$ L0 ?9 G: j4 h _) C7 o pokeID,& A+ h6 h' h4 }' w& l" H# h3 Z
IID_NULL,/ u- s9 o4 S2 a) D
LOCALE_SYSTEM_DEFAULT,
+ p% R, _6 c7 f/ m- I' y$ ^3 q DISPATCH_METHOD,* |% Z: L/ C" X7 A( }* z4 f+ M1 s
&dp,
W" X& [3 T0 \* Q5 Y3 M& Y NULL,
2 Y7 ~; R( g9 d1 g &ei,
% z$ i' x/ G( x1 \ &uiErr);) u# n8 }5 D) J1 J8 h
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SysFreeString(topicStr);9 e" ~" E+ t) T6 F( v" r! L
SysFreeString(itemStr);2 `, s5 X) o- i- i
SysFreeString(valueStr);
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/ ~" z% J% o6 S. f, t; 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???& O8 I$ V2 l/ t3 D
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????) ]0 m6 ]2 A9 L; t' u2 ]6 u; A
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2.这是request的程序6 p: D) D/ f+ w4 S! {7 e
// Request a value from Extend
X+ [3 p1 G9 W G% D3 S3 N/ ~//, q+ \' v4 A( I ~/ w6 C
// Initialize the variant that will hold the BSTR. Set the variant's
' P2 w; v C5 `/ b- E3 O// type flag to indicate the fact that this variant holds a BSTR. Place the
3 g! [; B9 _6 ~' b, h) ?" [" d9 d) ~// BSTR into the variant structure.9 C( F4 H0 Y& ^/ W
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& D; y1 E/ C3 y2 g L& B( g$ [* O1 @
VariantInit(&requestVariant[0]); + v( m1 O& z( O- ]/ i3 \. x) f' A
requestVariant[0].vt = VT_BSTR;
9 u" s' Y" e- }3 T, a/ f/ n2 n requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
; |' a! f/ u) }5 E VariantInit(&requestVariant[1]);
" A6 l; i9 g; z. }/ y: C; M6 x$ K requestVariant[1].vt = VT_BSTR;5 `2 k4 p1 l' S
requestVariant[1].bstrVal = topicStr;$ G( Q+ x+ x: J+ o, I
: H1 O- p, e- b$ g. r) V// Set the DISPPARAMS structure that holds the variant.
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8 V9 f" t2 W( m o6 K& m dp2.rgvarg = requestVariant;
( U6 b" y8 C1 Y v) |, R9 G dp2.cArgs = 2;
4 B3 q) ]2 w5 G9 P Z. m6 W dp2.rgdispidNamedArgs = NULL;5 |, Q! S& ^9 l" f$ U
dp2.cNamedArgs = 0;8 a- u+ Z3 Y( j7 _: G) x* w$ m9 B
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var.vt = VT_EMPTY;
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. n" S. M+ a4 Z! |3 S) Y) B% E9 u// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke() ]( I- A4 Q: z8 c
requestID,
" r: p: @( _6 [ l, N IID_NULL,/ g- V, a! y, y5 F) q5 N2 L
LOCALE_SYSTEM_DEFAULT,
& b1 P: F, _1 l6 d$ r6 M6 o7 ~ DISPATCH_METHOD,% r, V" M+ w" e' ]$ j
&dp2,
, |( \ R3 a! n- l9 X &var,; R1 Y! w& Q: C
&ei,
! P: N0 K& A2 ~5 V &uiErr);- f2 \$ c* n! @$ Q4 K
+ k& F) T" R, O. C* }0 q SysFreeString(topicStr);4 b* Z5 a+ Z/ V, y# F. ^) k& o
SysFreeString(itemStr);# I; s! W- M1 _
请问该程序是获得extend里面的哪个值?2 b+ T% ~5 Z# B5 J
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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