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: " @ P: d' k3 k" [Name = (WCHAR *) L"Poke"; $ B/ Z* F& p- f8 A 4 b# O& \1 ~9 [9 T- @4 ` hr = m_pDisp->GetIDsOfNames (2 j \7 l3 j5 q/ t' U
IID_NULL, // reserved3 s# J; I" d- K0 M' ^, |7 V
&Name, // Array of names to get IDs for3 P/ w" B+ h6 `' r) \
1, // # of names in the array! T3 i/ Y9 y) r0 }" ?( q6 J4 Z
LOCALE_SYSTEM_DEFAULT, // System locale 9 i* ~ H7 P& [7 |- i &pokeID); // Array of IDs to fill on output 5 D2 Z( v- c( _" N) x 2 N- n7 E# T* k' c! }% C
if (hr) . V- G# o: Z# s$ v { ; v3 T& Q1 K* h$ K! X/ B! Y MessageBox ("Get Poke Unsuccessful"); ) X% g3 i9 m: | return; , P- Y* d. ]0 c+ s9 u6 J }: \3 {- k3 h) |( f8 h' t
, y9 D1 E1 a0 n, d/ h9 _" c8 c7 E/**************************传递数据给extend**************************************/4 u9 Q" \1 F& A/ o3 s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " K j- n: R/ ]8 Z# D $ X0 m! d5 k& [2 q F- O
valueStr = SysAllocString((WCHAR *) L"1232");( l8 s4 x3 {. c8 U K
VariantInit(&pokeVariant[0]); 2 |& y3 {' [& W% p* q! `6 a pokeVariant[0].vt = VT_BSTR; 4 Q, u* ]; Y" ~- w6 v( R% R. ~ pokeVariant[0].bstrVal = valueStr; # W* m( D$ I% r w' m ' }& ^* S: h P6 k) o itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 N% Z, D/ @# n4 P
VariantInit(&pokeVariant[1]); ) q) w1 j$ U; O/ v pokeVariant[1].vt = VT_BSTR;- N7 I5 h8 @+ e' X$ H3 o% S4 S
pokeVariant[1].bstrVal = itemStr; # Z- E: t/ n, D6 G' r2 b" z& i# l& G* q$ U& f* s
topicStr = SysAllocString((WCHAR *) L"system");% I; _- [2 F9 \! L$ K$ T
VariantInit(&pokeVariant[2]); , F/ l. q0 i. z$ X3 c
pokeVariant[2].vt = VT_BSTR; $ g7 S" K3 b& ^( g3 V pokeVariant[2].bstrVal = topicStr; + \3 \( G; X& ~* B: U0 t0 B( ^' R
// Set the DISPPARAMS structure that holds the variant.) Q# y' D5 F `2 @% x. N q
6 V' g* o9 Q4 U! d
dp.rgvarg = pokeVariant;8 ]. A+ u9 q2 P' t# `
dp.cArgs = 3; g2 s9 i, }9 r; V. R2 K5 B2 o7 F dp.rgdispidNamedArgs = NULL;; O5 t: _, @+ r$ ?$ O
dp.cNamedArgs = 0; ; b2 l4 o9 i+ w- `8 R9 O5 [3 _( L; T& k& c4 e
// Call IDispatch::Invoke() # v& p- H, G, I! o+ N: g e* W. ~ D9 E/ u% c2 Y$ {
hr = m_pDisp->Invoke() S2 U5 f& w4 X* K. A
pokeID, . e- h, z8 j8 Q, ^% h0 Z) D" h; e IID_NULL, 6 t5 D9 D% v! ?( v) L4 C" ]$ f# f LOCALE_SYSTEM_DEFAULT, % w( x e( x7 g) _0 l/ j DISPATCH_METHOD, : ^. z7 _' X& x. O% [8 X &dp,/ q2 u& A" A9 P/ q
NULL,- |& Z) w8 p; ^6 |1 H
&ei, 9 v! o1 ~( ]3 K+ d &uiErr); 7 O) W# d% n4 D* G9 Q& R . r& G% l7 O& Q SysFreeString(topicStr);9 h4 M3 E# Y5 s( G& i1 ?
SysFreeString(itemStr);! ^0 ~/ j$ l9 g7 r1 A
SysFreeString(valueStr); ' D0 n; s, \+ m* [, ]; R6 z8 h- `% y2 C/ W( `, ?
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; S7 e9 x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???? ) k! w4 |; v* n7 w K' x# q9 Q w6 M$ T6 Y
' z7 v7 ]* l, q2.这是request的程序 8 W& A3 L6 ~. C& L* x7 w1 F// Request a value from Extend& i! Z/ t0 _& E/ L1 E" @
// ) y; e- W/ Q/ q8 E8 J// Initialize the variant that will hold the BSTR. Set the variant's4 o; i/ q# M1 b1 w4 b0 ]$ ?
// type flag to indicate the fact that this variant holds a BSTR. Place the , \0 U& `% N) |: }, A/ d// BSTR into the variant structure. n' d9 _1 a/ X/ W& e& e5 R ' a0 p2 o" n4 k9 Z4 b requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 e. E0 I# i# [% |6 j0 K, K
1 \: y$ I& w( G! H4 s* v' a a1 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. G0 \! v% o X' ^ l/ a K
VariantInit(&requestVariant[0]); / [$ v* `4 M* L! R9 X requestVariant[0].vt = VT_BSTR;, I- a$ {. Z4 B! r! \9 K
requestVariant[0].bstrVal = itemStr; 2 s/ D) Z+ e' g% D5 y g0 |7 r) ^; g7 }
topicStr = SysAllocString((WCHAR *) L"system"); 7 q. N7 b% D0 L, X, w0 Q VariantInit(&requestVariant[1]); 2 Z2 ~5 e& ]+ s/ P6 u
requestVariant[1].vt = VT_BSTR;" _% s# D" [: I) e" P
requestVariant[1].bstrVal = topicStr; ) j# I% s6 D9 Y1 s, j 4 L: K2 H2 c: k1 ~5 W// Set the DISPPARAMS structure that holds the variant.( `2 ~3 {; D+ q4 C. d0 q: C$ }! K
+ z! b( o4 Q! y9 t* h' O dp2.rgvarg = requestVariant; , w6 Z4 X. e1 G dp2.cArgs = 2;: O0 p- g" \( }; z
dp2.rgdispidNamedArgs = NULL;+ v* H/ H. ?6 S# a9 _' u
dp2.cNamedArgs = 0;& S3 t/ Q- p7 N8 O7 ?6 Z8 [
, a7 U$ b6 P/ k. l7 ` var.vt = VT_EMPTY; 1 T( x( d8 d$ X1 l% U' r- q$ v# [9 j. N! W0 w
// Call IDispatch::Invoke()8 \; m6 Q, u0 E) ^1 M0 h
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hr = m_pDisp->Invoke( 3 k8 d! @5 Z$ T$ z2 Y0 W+ h requestID, - H: \$ z0 z2 F; J g IID_NULL,9 T* B( O3 n3 c: a/ Q: |
LOCALE_SYSTEM_DEFAULT, , j Z7 P' u3 B) p2 P4 _/ Z' E DISPATCH_METHOD,8 T8 _3 X9 a$ m' m! {! [
&dp2, 1 V- i) N9 K) m& Q5 N# G9 Q7 ~ &var,0 W W3 ^6 u+ b: h$ d( ` i
&ei, 3 h* z5 v( b) e8 Z/ V0 p) w &uiErr); 1 I3 x; a; @$ A0 y & G6 g0 ~- o! D1 E2 d6 J SysFreeString(topicStr); ' m! ]7 m' h# l" o SysFreeString(itemStr);" c, N( H/ r* E8 B
请问该程序是获得extend里面的哪个值?- k% o* l0 B2 w) Y9 w W) r
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????