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: \& J" f" V5 p# O% C
Name = (WCHAR *) L"Poke"; 2 B" H& B- n* i8 H0 h$ ? - q7 H" A7 k; ~6 M+ e$ |
hr = m_pDisp->GetIDsOfNames ( ( g" p5 p; h* A6 M7 N/ s IID_NULL, // reserved" M0 m C H( g; ~# p
&Name, // Array of names to get IDs for ( I9 }* ]$ l8 o; v* ^) V 1, // # of names in the array7 l: H4 y O, E8 |
LOCALE_SYSTEM_DEFAULT, // System locale9 _+ n& p9 |+ q' f' m! y1 u6 b
&pokeID); // Array of IDs to fill on output# ]/ f c% ~# e
8 u% i' J( D. E' W if (hr) 3 k3 E* F, |, R9 H, Y4 S. \7 K {0 z; `% q* B. ?& G! b
MessageBox ("Get Poke Unsuccessful"); 0 z4 _ F: H* S2 j7 |& e return;& m* `5 g8 N2 b" F9 {9 Z& L( ]: Z
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/**************************传递数据给extend**************************************/ # b. v% x5 i7 o) T/ M& Z4 U- v0 v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' p% t8 T5 F/ `' ^
! @: V9 m! ^. `+ V/ b2 { valueStr = SysAllocString((WCHAR *) L"1232");1 u# b q; |& U, ?
VariantInit(&pokeVariant[0]); ( y8 f& l& s. g. c& B
pokeVariant[0].vt = VT_BSTR;, N0 ^$ O5 \" @/ W' Q
pokeVariant[0].bstrVal = valueStr;% O8 W: |3 n3 d9 G$ X4 }
$ G* W/ d. I6 S! {/ D- u: S1 m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" p1 z$ J% `- d* B/ v: N
VariantInit(&pokeVariant[1]); {8 C$ m. n3 [
pokeVariant[1].vt = VT_BSTR; ' K* ~- ]2 A. U: I pokeVariant[1].bstrVal = itemStr;% L4 M$ x8 W* U# n& E/ A
$ U0 V G" k+ V4 Q5 Y topicStr = SysAllocString((WCHAR *) L"system"); 0 u$ X# [3 p; `" v x R2 d; q VariantInit(&pokeVariant[2]); . {! C. K* N$ x O* l pokeVariant[2].vt = VT_BSTR;$ N+ A3 d8 L& t" W! z9 S
pokeVariant[2].bstrVal = topicStr;$ N: x8 k0 M# E7 s; D
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// Set the DISPPARAMS structure that holds the variant.2 |; ^/ B t2 N. Z- G
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dp.rgvarg = pokeVariant;; h& x" }5 N" F2 c2 z' D
dp.cArgs = 3;3 L( u8 m+ r* {- }9 v( o
dp.rgdispidNamedArgs = NULL; 9 l. X% r; E: u6 _8 t dp.cNamedArgs = 0; 8 r$ X7 o! O: @ K, l. H i ! V4 ~- g. \$ H, h// Call IDispatch::Invoke()" {9 M! p4 O0 p. x9 v4 F
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hr = m_pDisp->Invoke( 5 [4 G5 f( g% F- b' x, o pokeID, 0 ~8 w; K3 A% d4 S7 H/ j' b IID_NULL, / N! q) g0 x6 _& i LOCALE_SYSTEM_DEFAULT, & z8 V* W" e) K; o: z DISPATCH_METHOD, . l) D3 ]- n- [# E' u3 I% ^6 [ &dp,, w, e) j L( ]6 r- p7 p
NULL, 7 C# ^0 h; D1 I2 J- i' O &ei,8 a7 D; k, W1 S1 w; M3 M N5 v* [# |
&uiErr);) A7 _' V# j: y% g! q: l
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SysFreeString(topicStr);4 n" h" J7 Z x* u8 c% v. m/ ]
SysFreeString(itemStr);3 T0 X. k& g5 D9 C ?
SysFreeString(valueStr);; X# E4 {; `2 y5 Y3 k
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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??? / b) ^, ]+ Z- o& A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????1 s0 _: G( s6 F
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/ n5 \$ P! C( J& @) l1 g o2.这是request的程序 - ^+ w0 B6 J5 J/ d, i4 ` j// Request a value from Extend+ p" V2 s. c1 t+ V6 g$ p
// 2 H- E; m# Q W" F+ a& X. \// Initialize the variant that will hold the BSTR. Set the variant's3 ?$ C9 \; p1 g/ D r9 C& Z% m
// type flag to indicate the fact that this variant holds a BSTR. Place the/ |' v/ j1 X- Y& ~) ]2 f. v# |
// BSTR into the variant structure./ x1 N' R; }; L4 @$ P/ y( R, ^+ Z
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 e; [9 G$ T- r/ H1 c2 |% S) x. N/ f 4 ]- g6 b% `1 G/ C+ s5 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 G" Q4 u: J; u5 j3 V4 d; g! J* t VariantInit(&requestVariant[0]); " _ \8 K+ i* \' @
requestVariant[0].vt = VT_BSTR;: i' T; K" M; U: z- s1 A) o# \
requestVariant[0].bstrVal = itemStr;; v$ f+ l& {( u* m2 H4 \$ W- w
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topicStr = SysAllocString((WCHAR *) L"system"); : U9 X! i) z* ^# y' f/ g VariantInit(&requestVariant[1]); * G: j8 |& W& D: L& |* H* F
requestVariant[1].vt = VT_BSTR; 7 U( i. K( W/ ]; G+ F1 E/ C requestVariant[1].bstrVal = topicStr; ' ^+ m% m [* E5 y* n8 w7 ?2 V7 @0 ^9 c T* m! k
// Set the DISPPARAMS structure that holds the variant.9 T, g9 i/ { r
8 |; F+ a# i" k. [' F5 E- Q dp2.rgvarg = requestVariant; ( t7 c6 ]9 S( t+ X5 L dp2.cArgs = 2; . y4 M) D- h# e9 Q7 X' M! V- t dp2.rgdispidNamedArgs = NULL;2 |& M |3 a8 Y# g7 `
dp2.cNamedArgs = 0; " g: O, J2 D) V0 x% J1 U" @5 \& k4 p5 x* A# Y5 N
var.vt = VT_EMPTY; 7 S, y% T0 ^5 K i$ w% ^1 |$ W4 a: M
// Call IDispatch::Invoke() ! Y; G+ y+ M, l2 c" }4 R' ]: `5 ]" N& p4 j
hr = m_pDisp->Invoke( 4 U& x- ~& I! h( x( [8 x requestID,& X3 f, R& t) p: `( S7 x
IID_NULL,& [$ m f# \! c5 m8 _2 C h
LOCALE_SYSTEM_DEFAULT, 4 T n9 Q! x5 K DISPATCH_METHOD, . n; l* Y7 ]0 w+ {* s' K. @9 q, \. @ &dp2, D. i: u6 Q8 m7 E+ }2 W* T n5 E &var,2 ^# @9 w7 |8 h8 @- i( T
&ei,6 }$ k! }7 ]) y1 R$ J
&uiErr);4 n) d4 D5 o( S! B: g5 H
& S; h! k) L, A( M+ S SysFreeString(topicStr); ) @3 ~) Y. t1 C, g( Q5 N SysFreeString(itemStr);9 d: D* m, d, X s
请问该程序是获得extend里面的哪个值?- s9 G7 t9 `- X! @" a W# ?
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????