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: 4 D7 V. O* P) l- C. E# k8 U4 GName = (WCHAR *) L"Poke"; 8 q p$ k7 F- m0 ?1 w; R. E 3 R2 A$ {4 X! s; p
hr = m_pDisp->GetIDsOfNames (, S" ~" r2 R7 j
IID_NULL, // reserved $ Z+ w0 ^9 a% @ R5 b5 d' T &Name, // Array of names to get IDs for 6 u3 N/ C3 Q `0 R 1, // # of names in the array . E/ d# C+ w" g3 ]- l c1 v LOCALE_SYSTEM_DEFAULT, // System locale4 X$ d) w9 u$ U' T
&pokeID); // Array of IDs to fill on output/ |& l& C2 ~2 q, l M2 R" t) `
! O' H0 \9 ~: j; d7 ^ n6 }
if (hr) + h; D$ x5 C5 J9 h3 h6 @' ^/ g6 t { + f: i4 t9 m& q) Y$ i! q0 h MessageBox ("Get Poke Unsuccessful");, J% |: L- F) X+ O" H
return; 4 a0 P" Y: w- k: x; m } % B$ r: r! V3 G! c) ^8 R & m' ]( \% Z7 u& Y. s' B* S+ r- U/**************************传递数据给extend**************************************/ , D% S: J0 z) g0 n5 u5 \7 n* N- w F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! P% x1 f, c9 m. g
: _- m2 o( z& e4 x1 M7 X
valueStr = SysAllocString((WCHAR *) L"1232");% c! O) h( V: [7 O4 s0 E2 `
VariantInit(&pokeVariant[0]); , T0 s/ w7 M' }2 I
pokeVariant[0].vt = VT_BSTR;& E, D5 H; _ x. u
pokeVariant[0].bstrVal = valueStr; ; m4 O# A( l! g* v: E$ k# B& B7 f1 k& i1 h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( X H) q; c. J: O2 d( T7 @( V
VariantInit(&pokeVariant[1]); 1 E1 ^0 J7 U* o! }( E2 G7 M) R
pokeVariant[1].vt = VT_BSTR; * S2 b) b: @4 R+ L pokeVariant[1].bstrVal = itemStr;( c# L0 `9 O% a* S, {8 g% X
6 {4 W# Y0 c$ H; o& `9 ~ topicStr = SysAllocString((WCHAR *) L"system"); ( d( S7 a* h' f* l VariantInit(&pokeVariant[2]); ) N* U2 h0 j* M w; j1 K pokeVariant[2].vt = VT_BSTR; , l' X3 e% f1 e, S% V H pokeVariant[2].bstrVal = topicStr; 4 X; \8 f3 ~' ]: K ' M, A' [: S: ]& Z( g- A' L// Set the DISPPARAMS structure that holds the variant." X$ @6 {9 ~" L9 L
6 E$ ]& l' O' ^5 A4 b4 Z& E dp.rgvarg = pokeVariant; ! P" i, o( h' @4 m1 t dp.cArgs = 3; ! Q8 D& x# r2 y) B dp.rgdispidNamedArgs = NULL; 1 L1 X* \6 r. O+ s dp.cNamedArgs = 0; - Q# q/ X0 |9 ~) J# q4 F& F! \/ Q8 L* B* q* b( u4 \8 j
// Call IDispatch::Invoke(), s4 k* r% g& y R2 l# H2 d4 a
+ X. x* C" H5 e$ i/ e
hr = m_pDisp->Invoke( 7 w/ e2 z/ g6 u# { pokeID, + U" B6 `# z/ \; N, k2 I& K5 x* A! C IID_NULL,% s, ]1 n' s. j) C7 P A: e
LOCALE_SYSTEM_DEFAULT, ) A- U- C/ v$ @ DISPATCH_METHOD,9 r6 p: P9 w+ |- b% i
&dp, ; h! q9 _# O" f8 c) M' z- k: { NULL, " _+ N" G1 }1 F6 G( h &ei,$ i" b: t1 Y, E7 H* [6 Y
&uiErr);& A7 E; z. W, Q: w5 [9 g! |* s
' {; s$ e5 I* W- N* L
SysFreeString(topicStr); 4 `* _# A* T* \& c, `# [0 a SysFreeString(itemStr);- l- K: j6 c3 S8 v
SysFreeString(valueStr); v* c9 `6 ]5 C# u/ R
! M( s* J# M/ O" 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???$ |' l$ B4 [1 u( r" J
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???? 8 ^9 S" @4 \! r# a$ ? : O+ w3 ?# {0 w$ O) }; r6 n ) v3 _- U( M8 h' B; C# D0 ?" G! \2.这是request的程序 7 F- _7 W' w2 ^6 ? n) o// Request a value from Extend : ^( ~* N3 }3 v& O4 k// 9 ?1 x5 l+ H. d6 r. T( _6 H" Q) }// Initialize the variant that will hold the BSTR. Set the variant's8 T& Y6 h$ S6 A6 z1 m* L
// type flag to indicate the fact that this variant holds a BSTR. Place the- w. z4 S4 A2 Z; [5 }6 O9 w
// BSTR into the variant structure. : R: i$ b2 r+ Y. S* h# j5 c. v2 T! Z- b" E4 Y5 h' u
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 |# Q5 h" T& U0 Z: d* u V- ] 2 ^! E# c: h7 D: w# m- E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& K; D# ?+ c. q. h3 f8 i9 N. ^
VariantInit(&requestVariant[0]); 2 ^* q- X G* R" M+ t
requestVariant[0].vt = VT_BSTR;0 [, G' p% B6 d, E4 K: L
requestVariant[0].bstrVal = itemStr; 8 e& q* `( Q: _& Q2 f. _: [# K/ P3 L5 S1 D F9 W
topicStr = SysAllocString((WCHAR *) L"system");% e. Y/ j) ?0 W7 g
VariantInit(&requestVariant[1]); ; m n6 }* g& ^5 I1 @
requestVariant[1].vt = VT_BSTR; : }1 q0 B# [7 m1 l% M: L4 p requestVariant[1].bstrVal = topicStr;- T! d- M6 X2 e# p5 G1 [" V
3 h$ D- V- d b// Set the DISPPARAMS structure that holds the variant. " V3 V4 A% l I8 Q- O 1 u; z7 M# ^6 d% R* ? dp2.rgvarg = requestVariant; q* m$ d) @0 I" L4 C! S6 X
dp2.cArgs = 2; ~0 M( Y8 f0 E; T
dp2.rgdispidNamedArgs = NULL; 5 T" [0 _5 U7 v l* q dp2.cNamedArgs = 0;/ i2 y) @/ P& r# L; @& R
0 H& `9 q# @9 N8 ^- f var.vt = VT_EMPTY; $ c: i! j/ o' Z {* \' K) f0 ]& N, X$ K# N: G
// Call IDispatch::Invoke()8 o4 ^0 I# ^8 w3 s1 G2 R- I
* E# ^2 U/ C* \( G hr = m_pDisp->Invoke( ) W9 |7 M* @' a, D8 u requestID, * q+ ]3 K/ i$ F# F. s! _ [ IID_NULL, % n4 v# p* K! u2 D LOCALE_SYSTEM_DEFAULT, }. p& X _' R# b$ X: ?1 [& q7 u
DISPATCH_METHOD, + ^5 T. {8 M, o$ u: L &dp2, & D# e- F9 M: ]. L* R3 q8 \) c &var, 9 V; j+ y, }, S2 x &ei, ! }6 b- u5 {- c2 D$ ~9 M &uiErr); , i: E+ u% n |: n$ i 2 i) [% m7 G; }: X( g SysFreeString(topicStr);0 K8 p& D9 V% l: d; D
SysFreeString(itemStr);% M" T5 l& ?% v+ P9 ?" u/ U
请问该程序是获得extend里面的哪个值? ! i1 {, c! j1 ?( Q" O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????