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:7 y/ [) H+ Y' G9 Q* _
Name = (WCHAR *) L"Poke"; 4 P7 c1 V. \+ z+ o. k# V+ Z) p : [" O' N0 O5 [ hr = m_pDisp->GetIDsOfNames ( - N; E q* y3 v) P0 s: N IID_NULL, // reserved2 ?, N7 c7 `2 K: D/ i4 ^0 d- v) b
&Name, // Array of names to get IDs for 7 m/ `1 q6 {7 M" S! {7 j7 U) X9 ]9 Z 1, // # of names in the array) o+ ]1 A9 P( N7 M
LOCALE_SYSTEM_DEFAULT, // System locale 4 z M- }3 B: y2 M2 V4 |( o &pokeID); // Array of IDs to fill on output + ?! J5 G8 D# w" x) ] / y: C- n' N8 U
if (hr) 3 S7 _" f& O% f2 t" u: p6 Y' a, Z8 C { , |' x9 {2 c% A M% { MessageBox ("Get Poke Unsuccessful"); " W8 R V. ^: @. n1 r% @ return;( ]8 w1 }/ H6 N; d! T" {
}7 ^( i: L- r- G b" }7 v
: Z b: U' s, c7 z% H; E6 m, G4 h/**************************传递数据给extend**************************************/+ d" ^- N& _4 ^1 h
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- g7 s& y W/ d' f$ T9 N1 a
( `! I+ w: q/ x/ o valueStr = SysAllocString((WCHAR *) L"1232"); 9 V$ a: G9 U* W3 x* b$ G. }# B VariantInit(&pokeVariant[0]); % k# x% S, r, R5 w' R' \
pokeVariant[0].vt = VT_BSTR; : s3 a0 c2 T/ e* j/ B9 N+ y1 x pokeVariant[0].bstrVal = valueStr; 4 ]+ P f* k* \* ?& e * P1 W6 H) B/ u$ G: Z; s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ( B* Z( n. u# h" N7 a" E1 M/ K VariantInit(&pokeVariant[1]); - y" | A: }7 ]( |. r
pokeVariant[1].vt = VT_BSTR; : h, c! L2 X+ V/ u4 U# ? A2 C pokeVariant[1].bstrVal = itemStr;) U/ `# _! K9 k/ n! `
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topicStr = SysAllocString((WCHAR *) L"system"); * l* s+ e2 G/ F1 }) z0 h- c VariantInit(&pokeVariant[2]); % Z0 v( s5 z+ J0 _ pokeVariant[2].vt = VT_BSTR;1 s7 H8 G% S+ ]( y& G
pokeVariant[2].bstrVal = topicStr; % I- X& x p' o# s+ o" c3 w% P) S) w! I( V' [9 n1 z3 N2 a( G
// Set the DISPPARAMS structure that holds the variant. $ q; v/ U8 t) u2 _; \* Z; a4 j5 A- H- F
dp.rgvarg = pokeVariant; 4 v$ w: |, H/ y: P+ H& [ dp.cArgs = 3; 5 r! w7 \+ s" J# W dp.rgdispidNamedArgs = NULL;. B6 O& N0 b) `8 V: D
dp.cNamedArgs = 0;( ~1 }9 s/ h; l* w2 s+ a0 ~. P
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// Call IDispatch::Invoke() * \* b& V) l$ q # N$ C0 w! d* ^; }2 W hr = m_pDisp->Invoke( $ n9 K v1 p1 w5 G$ Q pokeID, - x8 Y& `6 O( V IID_NULL, . l! V$ o$ R# y" o LOCALE_SYSTEM_DEFAULT,3 E- R4 d6 X/ |
DISPATCH_METHOD,4 b. X( [/ v7 l$ N& a: f3 p! q9 V- O
&dp, ( R: F( O8 |2 s NULL, p1 v- w! a7 z" ?/ b( C &ei," \5 j A9 Z2 c" H
&uiErr);! |6 z1 _, i; X0 N
+ w/ n+ x& e) M* B. c" U5 N3 d SysFreeString(topicStr);( B* g: G2 P: F
SysFreeString(itemStr); % Q( t! ~. k B: k$ K5 t SysFreeString(valueStr); . I# m$ K: g) R1 @. g 6 q6 H% R. q; M9 G4 f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??? . D) \ D$ Q1 ]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" J: X+ ]2 N% H
1 c$ @, Z5 G$ P) A0 e 7 ^1 _) t1 s4 o2 F) W2.这是request的程序 7 g( l/ i c* d$ h( u( }( x// Request a value from Extend, \ X7 ~3 |& r6 L2 x: q. N: h
// ^. y2 m) ~4 ?& h( |8 L// Initialize the variant that will hold the BSTR. Set the variant's 4 F. r: H+ B! f3 u! V// type flag to indicate the fact that this variant holds a BSTR. Place the ! m: r; s5 c( K0 r// BSTR into the variant structure. ' E4 o% s; F# d# j$ r" M. R6 a0 r' ~0 e" v
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 y6 N0 n+ y) f$ B3 |8 s `
! h5 ?% s% u3 }$ E0 k) { itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 H/ ^+ i" g. ^3 V w8 d8 N VariantInit(&requestVariant[0]); $ W7 i( M. V* w% z
requestVariant[0].vt = VT_BSTR;) `% {6 P* u* a6 t" Q( s+ k, B5 i4 H
requestVariant[0].bstrVal = itemStr; & L# T, i5 T( f* O! p- H/ O7 \% x
topicStr = SysAllocString((WCHAR *) L"system"); 3 P# w/ L5 p5 l* _6 e8 \$ A VariantInit(&requestVariant[1]); 5 E4 t! g/ @% d" k2 v1 k8 J( r requestVariant[1].vt = VT_BSTR; * ]2 a) N+ f7 K2 S- j$ t requestVariant[1].bstrVal = topicStr; \1 Z, d% e A7 B0 ^
- i' J3 I5 ] x" e) D/ c7 l& h// Set the DISPPARAMS structure that holds the variant. 6 ]5 g' Q: q+ G/ K( d) S / W# p3 M q+ }( q dp2.rgvarg = requestVariant; / |2 O) E# d. i: ]! o dp2.cArgs = 2;- S0 y0 a* P5 k; f
dp2.rgdispidNamedArgs = NULL;0 w% i+ q4 S7 c% Z* A3 {7 b
dp2.cNamedArgs = 0; 7 C& B% `* U: t9 w9 y3 I 7 {6 p& {% \0 C& A% }% V8 ^) a$ }2 o var.vt = VT_EMPTY; ; z8 \" {5 v5 d( L# v $ I& O6 Y' Y3 D0 [+ \// Call IDispatch::Invoke() u& i5 A) m P* K2 u8 k1 E5 g5 ]9 b. a7 a
hr = m_pDisp->Invoke( , { l/ ^3 Y, ~* F2 D+ L$ D requestID, . ~- n/ h' W |1 v) b# D IID_NULL,& l# c0 [1 [. f' X
LOCALE_SYSTEM_DEFAULT, ) f9 l- q: c2 d+ a DISPATCH_METHOD,% I+ {8 @* o. }4 m' Y
&dp2,& Z, @% z* M7 e' m
&var,; b8 l* j3 @+ Y
&ei, + m0 Y" ]4 w- T2 k$ W6 c& Y8 L &uiErr);4 \, K4 r- k) Z
# M8 t' ?% O+ K, @& w SysFreeString(topicStr);4 a7 F( W1 p6 Q2 Y- i
SysFreeString(itemStr);; ]2 v; q& P3 d+ w0 \. }0 N
请问该程序是获得extend里面的哪个值? : x+ g. a2 |; ~+ }: S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????