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: ( h; k# n8 e. ?1 _Name = (WCHAR *) L"Poke"; 1 L/ N5 t! u# I 7 t6 J' r: d3 y' T- O) \; a hr = m_pDisp->GetIDsOfNames (: w0 G! _6 s: |6 u
IID_NULL, // reserved 7 k0 A# A3 q, ^- N &Name, // Array of names to get IDs for , b1 Z9 G7 r2 y% F/ ` 1, // # of names in the array $ _. c M* t$ k LOCALE_SYSTEM_DEFAULT, // System locale W( E, b/ N( O8 E+ t3 d/ X) k
&pokeID); // Array of IDs to fill on output A& o6 Q C$ ` + ^" v/ z$ Q) x" A1 G6 F% I `. b if (hr)1 N. w+ C# \' K, I: v
{ X& l C+ T* E- }+ z6 _1 N& I MessageBox ("Get Poke Unsuccessful");$ w# x. q$ l @4 X. c' C7 M. d
return;4 w$ } }- z+ E5 `$ `4 Y$ b
} 1 ~) |" K; ]* O1 M, F# h; @3 |" m: @9 z r5 ~% [9 E
/**************************传递数据给extend**************************************/4 A) p! c+ O7 }0 }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 e2 l- h; O1 S' U
0 q) f0 }: Q i9 y4 x- [, A: T% {
valueStr = SysAllocString((WCHAR *) L"1232"); : t0 q. D# P0 h- j: S VariantInit(&pokeVariant[0]); + J0 S) m( c0 r! ?( Q0 F
pokeVariant[0].vt = VT_BSTR;+ w2 q w8 s0 W7 h
pokeVariant[0].bstrVal = valueStr;6 ~4 t( j' \$ A/ v
, H- m) S* b c. ` K: W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); S) m( f& ~* P$ ^: U+ S. Z% p. m VariantInit(&pokeVariant[1]); 8 ]* E. q: v s3 T" K
pokeVariant[1].vt = VT_BSTR;% X8 z8 f* u( w% u! |0 G
pokeVariant[1].bstrVal = itemStr; 1 } Z6 J9 C# R0 f' b) R : G6 u% ^' [) V2 y8 I3 {; g topicStr = SysAllocString((WCHAR *) L"system"); % L5 i$ H8 p9 Q% P0 o" m2 v VariantInit(&pokeVariant[2]); & p, J1 U5 G5 ?$ M
pokeVariant[2].vt = VT_BSTR;7 w+ N; x1 n0 u4 g: R
pokeVariant[2].bstrVal = topicStr; 8 w. P+ l) {% ]# i! k% X( D; T, X9 ^3 U
// Set the DISPPARAMS structure that holds the variant.% e3 H2 `! z* V; u7 j
- ?) D1 V: X5 C6 Q& i
dp.rgvarg = pokeVariant; * f6 N" }# m8 ?3 _1 i% X dp.cArgs = 3; ( M. b, A( H* D: C dp.rgdispidNamedArgs = NULL; 8 P: c9 J8 i6 H6 R3 J" e# m. t dp.cNamedArgs = 0; ' g" g( Y; S; F: \+ v* x+ ?& r, w+ ~( V. p5 y; S2 A
// Call IDispatch::Invoke()& z4 }% E- X( U9 M4 S
+ ?( o# p; m' K. s* H4 X; E hr = m_pDisp->Invoke( 1 Z4 Q1 B) j2 F1 J/ M" { pokeID, # b( o2 z6 I. d1 }5 Y6 g+ S IID_NULL,0 i$ p6 I: m' N* z: Q
LOCALE_SYSTEM_DEFAULT, 9 o5 J0 c, ?4 g$ s- h DISPATCH_METHOD, 2 K5 f, l. p `9 M% Z &dp, 8 {- D( O) x0 V' ^ NULL,8 ?" o! g( S6 F
&ei,; l9 y/ ^* u- J& z1 V
&uiErr);1 t/ U" L1 W/ V" G& H! q: W
% Z |0 U7 D6 g5 d$ |7 C# B6 y SysFreeString(topicStr); " v1 A3 A! k' t9 d$ b* h SysFreeString(itemStr);7 K5 q4 F# z+ b: w
SysFreeString(valueStr); % {+ W& ]/ }) [5 q R0 V" G8 z3 z2 O; `1 u9 _ L& ]5 S: E
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??? u5 @/ U2 y7 u* v& U% i/ r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???? 9 y- O6 q: i5 t! [6 S7 ~. e; Z) Q+ [7 K/ z
9 Z8 E b- Y( x6 q2.这是request的程序3 J. W/ T9 `0 a" R6 W
// Request a value from Extend & _1 P+ E* C$ t) k//% C" A9 {5 R% n: f3 z6 w. U8 X
// Initialize the variant that will hold the BSTR. Set the variant's# Y5 J' S' q1 j$ ]$ {/ [/ N
// type flag to indicate the fact that this variant holds a BSTR. Place the - _5 j, D" E( Z# m1 S2 ~. I* B' m// BSTR into the variant structure.* k) g% c0 q6 J* ^) m8 O& P
8 k h B ]- T" K* H0 y: A9 R requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 X, L6 J8 R, @% S2 o/ T& ^% e
( E* W i5 Q6 S# {
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); Z) `* q% Z; a
VariantInit(&requestVariant[0]); 6 l* l. E6 k& D0 T* N- M0 \4 c* o requestVariant[0].vt = VT_BSTR; * j4 z( M* ^- {, J requestVariant[0].bstrVal = itemStr;/ P4 X+ N. _4 s0 `9 k$ {9 e
P- k$ o6 d0 ]4 A k( @' t2 {% o topicStr = SysAllocString((WCHAR *) L"system");2 D, T% h: F" l. \9 B0 j" t& k
VariantInit(&requestVariant[1]); , e" {5 e& n4 V
requestVariant[1].vt = VT_BSTR; - {1 y5 y# g4 |0 v* g# Z requestVariant[1].bstrVal = topicStr;0 A. a1 |4 N0 T
" Q5 K4 v$ J1 l// Set the DISPPARAMS structure that holds the variant.- I. L) k0 q! k' S: I$ v( R
\; |& C7 n4 O( P3 W
dp2.rgvarg = requestVariant; $ J0 H+ h4 b5 v" R5 W dp2.cArgs = 2; - Q8 | H N+ `! N' n# b dp2.rgdispidNamedArgs = NULL; 9 L% i* ^$ S. @: ? dp2.cNamedArgs = 0; 8 s9 D: T0 z( W5 R7 B& I k: Y; X l M. j9 p4 \; H4 V& Q
var.vt = VT_EMPTY; % s* Z' y: }% H( r + M5 x0 ~- l4 c! M" E// Call IDispatch::Invoke(). w/ _% M& ]: x3 V# O* @: H
7 |; v4 p0 D) h0 M hr = m_pDisp->Invoke( , `! S& O/ G3 n* B0 n requestID, / q1 j7 K: r+ P# r! N IID_NULL,; l8 T- a1 E& B" `
LOCALE_SYSTEM_DEFAULT,$ E+ X+ m6 [& q% F6 `" B5 \. v
DISPATCH_METHOD, 9 u6 ~# Y1 I5 R2 v. W2 x &dp2,! K' a1 o9 o' S# l2 x
&var, ; A( Q7 r" y/ h' V) f1 D5 j &ei,+ F( P) W1 @9 X; T
&uiErr); 4 o) |8 [1 O3 t& ?- r , j& T7 Q! l: E: y q4 @0 r SysFreeString(topicStr);" x T& v' n0 ?" X2 `+ A8 V: a; m
SysFreeString(itemStr);# ~, n5 |4 n" g& T, b
请问该程序是获得extend里面的哪个值?1 R6 u K- Z/ D) g9 K; y
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????