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:( d1 {0 I0 k) h1 t
Name = (WCHAR *) L"Poke"; ( f+ Z2 s7 c* v2 H& _ 3 v$ T9 E( ^2 e* N [& v+ J( _; q hr = m_pDisp->GetIDsOfNames ( 1 A5 I k+ {5 l, o! O8 T IID_NULL, // reserved/ A2 e4 S: L3 ^- L: b' G
&Name, // Array of names to get IDs for ' l' z- }0 z" ?, x/ z, P 1, // # of names in the array e1 s/ a' |& ]( u LOCALE_SYSTEM_DEFAULT, // System locale & h; j5 b/ K6 |# `, P M &pokeID); // Array of IDs to fill on output 2 @; X' Z% J2 T; D& c4 }; Q" `% H , y# h! b5 H3 ~# K: t1 b- b
if (hr)# e9 X7 o! u s( n# W; \4 ^* x( c
{ ) i# ^0 R4 y9 H MessageBox ("Get Poke Unsuccessful"); 2 b( w: Y. d0 M+ Z return; : X* t) X. o5 C4 Y' ^2 m } . A- j' d/ q8 t! z 5 K0 _5 _$ i4 [, p* O7 I) e5 q/**************************传递数据给extend**************************************/ ' w& f6 J4 p4 U+ B x& i pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); \; s a/ ~, X- p& \5 D& J& @ T7 B
& d1 _* L3 D& g4 G, T e valueStr = SysAllocString((WCHAR *) L"1232"); + B+ _+ e$ E4 V8 a VariantInit(&pokeVariant[0]); $ E5 C, D Q, e/ [4 m8 V, ] pokeVariant[0].vt = VT_BSTR; 8 E$ U& s+ _8 Z4 C0 R! H pokeVariant[0].bstrVal = valueStr; 9 ^' o2 D" F/ H1 R$ e) w * M r8 L) b. g/ w( h itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : ^" i* o8 B% G7 k" m2 h5 Z; u VariantInit(&pokeVariant[1]); + ?4 l3 N, r3 I
pokeVariant[1].vt = VT_BSTR;) L: H8 U) z8 ]4 v% M
pokeVariant[1].bstrVal = itemStr;* Q7 g& S5 e+ c6 Q: f) i4 ^
3 B4 ^. J7 z9 I& q3 N7 @ topicStr = SysAllocString((WCHAR *) L"system");8 f1 r4 ^# s/ E" m
VariantInit(&pokeVariant[2]); - q% d4 B7 p6 t, U. }& D+ D+ }, ^
pokeVariant[2].vt = VT_BSTR; . F) X7 E$ m% I2 @4 K pokeVariant[2].bstrVal = topicStr;1 `/ ]$ S8 Y) Q, Z& k" V
0 l" W7 R: J+ U' p5 H// Set the DISPPARAMS structure that holds the variant. : Q' S9 v0 U$ B: X. L: L( s2 m# d5 ]7 Q* S5 k! i+ a* d; U P
dp.rgvarg = pokeVariant;5 P- B3 n3 ^6 m9 I; O
dp.cArgs = 3; . f& ?. J: ~, S7 F dp.rgdispidNamedArgs = NULL; $ ]9 Q4 T! \7 s# ` dp.cNamedArgs = 0;; R5 M& o5 Y7 i6 D$ D2 T
( V A. o3 {. t; z// Call IDispatch::Invoke()2 g0 f9 K" ^' q, K" S
8 ^6 w) G$ K9 t' T% w# T7 A" X hr = m_pDisp->Invoke( . T- k0 N! D" ]. R; J pokeID,- r3 p/ ]9 L& `/ s5 J2 G
IID_NULL,( a& ?3 X9 C& r0 ^5 [
LOCALE_SYSTEM_DEFAULT,% c( q; T. u" A5 a
DISPATCH_METHOD, $ @$ T9 }: m3 l6 N &dp, 9 @% E8 k) M3 m+ A. l3 K0 p" [6 E' d: F NULL,# Y; u) f" v' W6 N9 t
&ei,8 P G$ x6 _' r
&uiErr);2 n) A% B. U* t) ^) B. u2 ~
4 N2 W) _5 H8 r; K1 j8 K3 A- Z4 z/ S
SysFreeString(topicStr); * O- w0 U& U, e- ~8 o& ~ SysFreeString(itemStr);1 R# a- ]+ C3 \' q3 h
SysFreeString(valueStr); , Y0 A3 E2 c0 u+ V6 l/ A' a6 R" K9 v7 k J
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??? " B2 H0 w0 q0 j3 F% c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 `7 `3 L, [; j7 ~% L3 `/ V
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2.这是request的程序: @* P! m! h! D% I% F2 h
// Request a value from Extend8 C4 k" A( w4 i8 R2 c" i
// 1 P! |+ p% f/ T+ x$ O// Initialize the variant that will hold the BSTR. Set the variant's! o( }, `4 c$ S/ \" f3 `/ U& a- Y
// type flag to indicate the fact that this variant holds a BSTR. Place the 4 f. {( R6 L# J- {, U( w// BSTR into the variant structure. # M; B6 X, H4 N 1 t4 y3 o# f9 ~6 e. M: [4 d requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);8 \( a2 A) s# ^, i1 S! ^; w9 A l; _
9 y/ \. S1 D9 U, J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ R8 k" P! s: R% F
VariantInit(&requestVariant[0]); 9 _- I4 O& n8 e/ ?. z0 N" m6 [. Y2 V
requestVariant[0].vt = VT_BSTR; ! _1 z5 N2 b9 _5 I requestVariant[0].bstrVal = itemStr; 2 }( G x) A* j, j5 w 5 d) |) v8 F$ O! B topicStr = SysAllocString((WCHAR *) L"system"); , L% h4 P2 p, A, `2 d# `3 y VariantInit(&requestVariant[1]); 5 }* l S2 m5 I N
requestVariant[1].vt = VT_BSTR;/ M/ c3 _% p1 ?
requestVariant[1].bstrVal = topicStr;9 U" g' g# h7 D9 x: O6 Z
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// Set the DISPPARAMS structure that holds the variant.- K6 M& [( e. f/ B* t
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dp2.rgvarg = requestVariant; ' Q* I! _4 T6 f1 z9 L! h& w* c dp2.cArgs = 2; . p7 } s8 I0 y( ~: G$ U dp2.rgdispidNamedArgs = NULL;3 q& `0 O+ k) \
dp2.cNamedArgs = 0; 9 Q$ T0 S t4 G + h& t. V, }; T' `: H/ v var.vt = VT_EMPTY; ) m. F2 I8 h+ E/ J3 E7 { s' }/ { % |5 ~9 d2 P% |* [// Call IDispatch::Invoke()# y( B2 p7 M4 B" X
7 X& O7 h, C' t/ X4 j; b4 M hr = m_pDisp->Invoke(# ^; |) w0 }( F; E7 @* {" d
requestID, 7 X( ]6 ?5 ?6 e4 @/ \, T IID_NULL, 1 K# q! t8 ^( @) @$ f% f' t* U ~ LOCALE_SYSTEM_DEFAULT,( S& j# R6 q; k
DISPATCH_METHOD,( {$ e8 d8 K! ?9 S' h# X
&dp2,( i* j' ? L/ y0 C0 x
&var, , b4 g+ w+ {8 }% v8 Y &ei,- g8 a& E+ l7 Q8 F0 y5 |5 P% r
&uiErr); 4 y2 z( Y _! K& j' D5 ^* p% l1 Q/ T* | k* ~
SysFreeString(topicStr);. P0 {' I, }, o* J- p% S* S- G
SysFreeString(itemStr); {) ?, O: [" o$ g2 ?
请问该程序是获得extend里面的哪个值? 0 s* ]* X. r [& V2 Q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????