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:) e6 I9 r& w n7 @
Name = (WCHAR *) L"Poke"; # \) H. p* y3 L. V7 C& f2 q. L " \8 f. F! e2 B; U1 b; e8 T, [9 p/ v hr = m_pDisp->GetIDsOfNames ( 6 w9 ~" ]0 F* }7 r9 l" o2 p( ] IID_NULL, // reserved9 G# O! |1 r0 P6 k' u
&Name, // Array of names to get IDs for * W" x, ~ m8 V2 M7 B8 ]6 x& @4 { 1, // # of names in the array : q: ~! g2 r8 w4 F LOCALE_SYSTEM_DEFAULT, // System locale + \+ D+ t# S d" ^3 V) z4 X0 { &pokeID); // Array of IDs to fill on output. y/ s) y. H* b9 q
$ P" a0 v, l9 ]2 S; y if (hr)% m& m2 p$ O' B7 m
{ , E, A- L' c9 o9 G0 |) Y- [ MessageBox ("Get Poke Unsuccessful");" S, ]0 x8 z0 N4 n; \
return;9 o; _- W& d; A# O( X) G
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/**************************传递数据给extend**************************************/# m4 Z. X/ o" j+ w) q. T. N* G
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ ~; ?/ M6 x- |* ~9 [7 G
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valueStr = SysAllocString((WCHAR *) L"1232");( p' T& x; i7 I7 r. |/ x
VariantInit(&pokeVariant[0]); + ^6 P/ c h% g# W% U pokeVariant[0].vt = VT_BSTR;& n& [' N4 ~! k& T
pokeVariant[0].bstrVal = valueStr; + S& X+ c: W: E/ t U- M6 B- S6 }' N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; C5 s# l j( S; C
VariantInit(&pokeVariant[1]); / D5 E+ d( u+ q& f* g
pokeVariant[1].vt = VT_BSTR; / u: n7 I; ?& C) O& u pokeVariant[1].bstrVal = itemStr; ! f, A' |6 k# e1 W + b7 e# Y8 I. O8 h: O( ]" [' r topicStr = SysAllocString((WCHAR *) L"system"); & @! Y1 p! G/ u0 d' g; R, q1 k VariantInit(&pokeVariant[2]); . o: a! r& Q" k- U
pokeVariant[2].vt = VT_BSTR; 8 e) O8 Q! J3 `' m o; r pokeVariant[2].bstrVal = topicStr; 4 b$ Z$ Y& [4 H+ h5 V6 P$ \ % g( _+ Q4 C: _ t// Set the DISPPARAMS structure that holds the variant. / J) g* c, e7 k5 e9 M; [: f3 H" X! ^- E3 f5 r5 y
dp.rgvarg = pokeVariant; $ { r& {+ E9 X1 J dp.cArgs = 3; ( z. u( s0 G4 }" G5 Y u dp.rgdispidNamedArgs = NULL;6 c. I# a" j( j E9 V+ }
dp.cNamedArgs = 0; & b! `! Q4 e! C7 K , J* {# W W' {4 |! _2 S* Q4 D: N// Call IDispatch::Invoke()- s R. [% u6 |9 p1 M* F2 H
9 u- B6 Y" P: U hr = m_pDisp->Invoke( , G1 s5 L; y8 u. M pokeID, 6 I. f2 f& r7 Q7 ]3 k IID_NULL,2 v# g9 |5 i& z3 k) G
LOCALE_SYSTEM_DEFAULT, 5 i1 H- K5 g& q0 R8 m, x0 @+ T3 G DISPATCH_METHOD, 8 R/ s6 ]8 ]! X( M( g/ ?" E8 a &dp,$ K( b8 R/ {% [- t" E
NULL, 2 p# @ S! V/ |) d1 l7 P9 O &ei,2 d( z9 p p0 {
&uiErr); . E! O" ?$ M: [* l5 } 5 z2 N! A( m6 N1 d: o SysFreeString(topicStr); 1 Q7 H, J* S* ?9 ~& w, W SysFreeString(itemStr); 7 z, m6 {4 H6 P1 r* f SysFreeString(valueStr);* @6 A% c8 T$ c1 u2 j, ~& C& `: i
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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& u! E& b! T9 e% 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???? " Y; s6 e& O+ U# o$ f& |& L7 w7 h8 ]/ i( B+ L; e. x6 c/ s) P1 Y4 z
`8 N/ Q1 L% B z+ N5 F2.这是request的程序 ; B: D$ K, R, c7 T8 c* M! u// Request a value from Extend6 S$ t7 B& U j, I+ B
// ' g' K% ], g0 \// Initialize the variant that will hold the BSTR. Set the variant's 6 ~( N; b6 V' T; f2 g// type flag to indicate the fact that this variant holds a BSTR. Place the) l+ z$ m# h k0 b- w1 Z
// BSTR into the variant structure. & g9 v$ p& G: K& C6 |* c: ^& L' e / z! _. U) X4 V& u6 }/ F& s' ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; _5 ]+ M& N- d) | i% y' o
0 b+ h2 Q% m) n: _' ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 w0 c7 L C/ E8 X5 d( Z5 t; J
VariantInit(&requestVariant[0]); ) D5 f. }2 P2 q( @. y7 C, u requestVariant[0].vt = VT_BSTR; 5 p7 I; z8 p4 ^# z requestVariant[0].bstrVal = itemStr; ! ]# y; p4 b! \) W, x2 w+ W% Z ~1 J3 d1 a5 b: }- B' P" W) t9 b7 C$ \
topicStr = SysAllocString((WCHAR *) L"system"); 2 E% [% O. m1 R; ?% o. t" U VariantInit(&requestVariant[1]); $ o' C! G" R1 {8 S& ^ requestVariant[1].vt = VT_BSTR;% X- g4 ^% b: [/ q' M. l$ p4 Y
requestVariant[1].bstrVal = topicStr;4 }" K( H5 t: U" Z5 O, _, p& c' O+ X
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// Set the DISPPARAMS structure that holds the variant. - D6 \- v" D' r: k7 l/ r( t4 w) ^: l. @: ]; @
dp2.rgvarg = requestVariant; l7 R( K4 R) t# Y
dp2.cArgs = 2; ( x* D3 i% h& o8 s. P dp2.rgdispidNamedArgs = NULL; ! D4 Z f' H9 ]/ B0 j dp2.cNamedArgs = 0; " c% f% B3 P( R! ~8 l" R! o: E% J/ w* H& X
var.vt = VT_EMPTY;# s, V W- q, ]6 X) c9 M
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// Call IDispatch::Invoke(). Q' o7 d4 p% b# |7 E: h0 _
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hr = m_pDisp->Invoke( / g: t6 U# @" @* ]0 U; j requestID, 5 n4 R6 c+ c" o( M" N2 l IID_NULL, & O' \8 Z( q3 l$ H# x/ g LOCALE_SYSTEM_DEFAULT, 2 K3 Q, O( C1 c* n DISPATCH_METHOD,2 r: X* s" t7 X2 W+ q1 Z' Y- c* a6 h
&dp2, : {2 P$ S9 T5 j- g! y% P. m! J: a &var,8 [2 e) j# M3 ~5 Q5 ~
&ei,7 e: d) t1 O& _: S; V% l& p
&uiErr); / N5 F6 w: R) ~3 A d$ @. K9 y, i" `
SysFreeString(topicStr);) `; I, I8 {/ ~. e. E0 b
SysFreeString(itemStr); : w0 a# b( P, p请问该程序是获得extend里面的哪个值? 3 N0 a: n0 @, S* H* S* T. t8 B3 }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????