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:$ w. s( i- I2 q" K7 Q0 l1 D) l
Name = (WCHAR *) L"Poke";, s( D6 J; q6 \) P4 E+ _7 u
! O( r! `. E$ E6 r7 } hr = m_pDisp->GetIDsOfNames (5 k$ E$ }# ]- V8 L: K
IID_NULL, // reserved7 d6 e: X0 `. w% ?# B
&Name, // Array of names to get IDs for 3 R W! c r! y' g! ] 1, // # of names in the array 9 |' H9 d& s4 ]. |1 z6 z LOCALE_SYSTEM_DEFAULT, // System locale 9 [; a# l4 D* b+ S6 Z &pokeID); // Array of IDs to fill on output * G V( A8 |1 @# n 1 z. R* P8 X7 p4 O: m
if (hr)$ e. G/ V) `7 K" c
{) S) K- c& Z9 e7 A: `* C
MessageBox ("Get Poke Unsuccessful"); 5 B" ^- \% X& N8 C! ?7 t8 M( [ return;( O. S4 C! V; x* M; X* A. |1 T
} ) P9 _' [2 ^& [ , Z/ v/ l& \% M3 j9 T/**************************传递数据给extend**************************************// Z0 }/ A4 f3 p! o- ?: g$ ? p" T7 a) y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ) C5 {& C& |, |3 R 0 J$ s9 M8 Q9 k/ O& |8 d3 b" Q3 w valueStr = SysAllocString((WCHAR *) L"1232");4 E9 h" ~, Y4 e
VariantInit(&pokeVariant[0]); $ ?5 T* h& W; w& Y pokeVariant[0].vt = VT_BSTR; g O8 K& H/ T, V, K! \9 X9 j pokeVariant[0].bstrVal = valueStr;4 ^7 W% s5 i: F+ e; F
! [% l j8 G) L; w j1 K5 o6 u itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" X3 W; @; ^& U* X
VariantInit(&pokeVariant[1]); 1 C& u) _6 l0 I! l4 i8 w+ H4 I8 m; e pokeVariant[1].vt = VT_BSTR; + C4 z6 v3 M+ g/ t pokeVariant[1].bstrVal = itemStr;7 F# y2 G* j* h2 D0 A3 y+ c
" ]2 [+ L0 H% y topicStr = SysAllocString((WCHAR *) L"system");5 m/ S9 m& ]3 q
VariantInit(&pokeVariant[2]); 6 J) T2 W3 `# o* v3 _1 K6 M
pokeVariant[2].vt = VT_BSTR; ) a4 t$ x* d3 f. G# g pokeVariant[2].bstrVal = topicStr; # u) J7 D6 u, B7 P, } " | M- ~6 ?0 s& o. R: O7 ]4 p( [// Set the DISPPARAMS structure that holds the variant.9 V- G( ~2 s: X8 C9 z9 ?
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dp.rgvarg = pokeVariant;+ p/ W U1 k0 a; v* }5 F" y
dp.cArgs = 3; 3 I5 J- K3 @, P) `3 P dp.rgdispidNamedArgs = NULL; ! V' q- y/ V) b# Q8 L, r dp.cNamedArgs = 0; , j/ o& [! [" t2 X4 R0 T2 U" t$ a- j9 `
// Call IDispatch::Invoke() & _4 |# Q7 E$ f) ? + g, E# f+ j$ s2 N/ V; V. I hr = m_pDisp->Invoke( 9 @: q/ k& Q' } pokeID, 5 F0 A% f: ?& }: G6 }- J* U6 x IID_NULL,. p; }" s5 s" U5 s. b
LOCALE_SYSTEM_DEFAULT,8 @8 t$ g% B, ?. W) r% z
DISPATCH_METHOD,/ h2 l) f: Q( \" O/ I( ^
&dp,1 I V7 Z/ U5 d
NULL, # _$ N) ^" V! ~, A% l' t3 I3 A- B &ei,4 _/ e& A2 `; i/ I: z8 |; u6 w5 g
&uiErr);* i! Y }& [) Q9 }$ l! X
: d2 f7 A) a# D3 N; D8 @ SysFreeString(topicStr); $ _( c( q5 B) A; R! L6 N SysFreeString(itemStr);. O- z! a& w6 u( e$ b. S8 y
SysFreeString(valueStr); & H2 g3 A, f4 w* E$ d6 E 9 m; e W& @# d* ?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??? 6 _ S: ]7 c8 t8 m' ?6 N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???? & J+ B$ Y- H* V! y0 v5 i+ Z6 r( _% K& }7 m5 S1 ~- q- b7 p
4 N/ I7 o4 s" Q1 C0 t9 k/ W2.这是request的程序 % c1 p. K8 k$ o- b$ n// Request a value from Extend1 `5 {6 X( X9 w
// ( R A0 G8 _: P) G9 e- ^( |+ a// Initialize the variant that will hold the BSTR. Set the variant's / d. c5 Z, B) _3 K- Q$ Q// type flag to indicate the fact that this variant holds a BSTR. Place the @$ ]/ ^; p, N5 p; M" r! V// BSTR into the variant structure. y6 }; T$ B8 o0 a$ L3 u& m) o* `+ `
) C* x; q: j9 s requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ' u* Y# N9 L9 B" S7 |0 E% G * s% q, j$ m; A& M8 J5 W* S
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 h9 b" ^9 n4 ?$ B
VariantInit(&requestVariant[0]); $ D& }; X8 B" Q! K# w+ e requestVariant[0].vt = VT_BSTR;" {& j3 k W( N# x
requestVariant[0].bstrVal = itemStr;0 l) k W U1 E p
0 s5 v3 D5 O1 Z+ C( V8 z topicStr = SysAllocString((WCHAR *) L"system"); * n3 l6 x, s# f: G VariantInit(&requestVariant[1]); 4 w1 f2 {5 z& y1 R requestVariant[1].vt = VT_BSTR;/ P- {, s: Y Z- @7 V+ i
requestVariant[1].bstrVal = topicStr;: M& j* e( D. _4 p! f
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// Set the DISPPARAMS structure that holds the variant. * u0 N8 z1 A9 `: a9 H U4 h, Z+ U0 w( w) x( O- L2 H
dp2.rgvarg = requestVariant; 6 f; D& B) E7 T! W- \! m6 Z5 \ dp2.cArgs = 2;# c8 W6 Z' I: Z5 g3 }& w
dp2.rgdispidNamedArgs = NULL; ! S* b5 y. \' ~ p dp2.cNamedArgs = 0; : `6 y& Y6 g& p( L. X0 g! A$ Z! b+ v3 ^4 J' M0 c1 s$ F
var.vt = VT_EMPTY; - r U+ c8 |8 } [/ E6 d! {5 M! m5 f// Call IDispatch::Invoke()3 {$ r: O4 \; @' A0 [7 T6 z9 L
# a" v# l' L& M0 { e3 s
hr = m_pDisp->Invoke( $ W, V9 I4 }* v. I! O9 T! R requestID, i$ F* K) K. t
IID_NULL, 6 ?& ]& b8 ^3 R7 J LOCALE_SYSTEM_DEFAULT, 6 G9 C) ^1 h) ]: H6 Q3 C0 h DISPATCH_METHOD, B1 [- h" o' K! P, {. R# J7 |
&dp2, $ _$ D# J- y8 i7 y4 {# g5 t &var, 7 A0 Y* `3 j+ U' K/ Q; o0 [ &ei, % f- W S* _) X8 b, A) _ &uiErr); 4 y( q* P+ R/ b' A) j& |, ^6 M [. K8 V' ]5 V
SysFreeString(topicStr);. x5 V( E) |2 T% b7 }, Y+ A
SysFreeString(itemStr);, y6 X; a" _7 `( Q# j7 C9 l9 U
请问该程序是获得extend里面的哪个值? 7 Z% K3 A9 ?, q9 W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????