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 s" a- L& |. }
Name = (WCHAR *) L"Poke";* o; O z; D" f" L ^
- _, }: I% A C hr = m_pDisp->GetIDsOfNames ( 7 d7 Y5 P! n" S5 _, a IID_NULL, // reserved4 z# P9 K, k. {1 W
&Name, // Array of names to get IDs for! T, r+ T4 I3 @0 U- }
1, // # of names in the array0 v+ _1 ]- g7 B d$ V) s
LOCALE_SYSTEM_DEFAULT, // System locale ( i6 z& ?7 J# {0 V &pokeID); // Array of IDs to fill on output( l+ |6 U6 ` K) b* D# J
; Y& {9 l3 }$ E$ `* Q# y5 E% ^8 L, a if (hr)+ g4 l* ^- J! u6 t3 z" a
{+ z5 s! ~$ L2 h4 \% c
MessageBox ("Get Poke Unsuccessful"); 0 L% U0 A F; |) I return; j+ R8 ]4 O, w% Q } ) q& |% P5 ^6 ?: \0 }' x4 V7 _: g1 V) t( L/ @% y
/**************************传递数据给extend**************************************/ + O$ x& s Y1 P7 f+ B3 c P pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 B" m! }2 `9 |$ v
5 R3 F0 A6 m/ J0 B; V! X2 U valueStr = SysAllocString((WCHAR *) L"1232");) K7 {* K- Z3 }# |' T; ]0 Q
VariantInit(&pokeVariant[0]); ; G; V# U8 x* c4 h) u2 S
pokeVariant[0].vt = VT_BSTR; 8 j9 l. {6 K' W I+ E5 i pokeVariant[0].bstrVal = valueStr; . I# E# k6 d+ C! V$ {+ U8 d9 O f( Y% k' }8 `' Q: I' _/ O
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% F0 ~! k' m3 R. P# _3 e
VariantInit(&pokeVariant[1]); : C+ I4 T- W/ `4 P3 T+ ]) z5 ? pokeVariant[1].vt = VT_BSTR; $ ? k# C7 s% y# a: v# h E# Q pokeVariant[1].bstrVal = itemStr;- _8 ?- u' j- i* M& `
1 Y5 h$ o7 J) P1 } topicStr = SysAllocString((WCHAR *) L"system"); 0 O9 R# E* o8 h' w, ] VariantInit(&pokeVariant[2]); ! z& P |7 f) n, r0 I6 E
pokeVariant[2].vt = VT_BSTR;) K4 R4 a! O; y* E- l7 x1 p% h8 |. X8 E3 V
pokeVariant[2].bstrVal = topicStr;; f8 P8 x' q; B7 \: J( Y
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// Set the DISPPARAMS structure that holds the variant.( i7 C; z3 n; M/ |* n4 E. ]: n
; W% S, n$ e% A dp.rgvarg = pokeVariant;5 {! x; [- ~: n9 E
dp.cArgs = 3; + n% J) }8 A. F U i) ^# a% w dp.rgdispidNamedArgs = NULL; " u7 V: a- u6 T# _/ c |4 W/ ` dp.cNamedArgs = 0;/ e5 K7 m9 y- }3 R& }' `5 W% U
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// Call IDispatch::Invoke() $ O* I# |& L! d8 {7 W, ]' R- z( Z * G5 ?7 }6 |5 ]9 s& d- z( A hr = m_pDisp->Invoke(- n, G) m0 s+ p1 f3 J
pokeID, 3 ^( `- d3 E3 S" ^2 ?8 _& Q' A IID_NULL, $ v# o7 G+ s5 [* T LOCALE_SYSTEM_DEFAULT, 5 y$ |6 ]& u" v# b DISPATCH_METHOD,- B+ `9 B; {( O$ l$ q4 x
&dp,! u0 n; X* }- b8 c% m' Q8 t
NULL, 7 H2 \2 n2 m: P) T% f( S. Z &ei,+ G. _8 S( i& A
&uiErr); ( o) `; a ~$ J8 K2 u# _. z& v- c$ o/ T
SysFreeString(topicStr);0 k( D) r9 Q+ p3 [
SysFreeString(itemStr); ) @6 q j% i3 C" y0 H SysFreeString(valueStr); 4 E2 n2 h' o( l( B * n5 P% n% Y3 ]+ y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???1 @! \) o: B1 t" o
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???? ( z0 ?$ ]! \7 g* X3 a; k3 ?8 W9 M4 F+ l" g
9 y: x9 ^& s: G+ F# ^0 ^2 h% S3 g" @2.这是request的程序5 j4 Y' f+ _% a
// Request a value from Extend# C' v6 D! P: r6 j" j( o
// : U9 j; b) O4 d8 s" N# O. F, o0 N// Initialize the variant that will hold the BSTR. Set the variant's 3 w7 w+ h6 T1 `1 \1 `1 B0 D// type flag to indicate the fact that this variant holds a BSTR. Place the; Q Z+ K* T1 k
// BSTR into the variant structure. 6 I. j1 [; Y$ ? 9 i8 c- Q. }1 G% F( J requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 M* Z' C( n: {) S* ? 3 O3 u% \! K5 f* a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- d8 j) X5 F/ }: s* ~0 A$ S
VariantInit(&requestVariant[0]); / m7 a8 X" x. C! h! Y requestVariant[0].vt = VT_BSTR; 8 v( g0 x. o' u n5 _- s requestVariant[0].bstrVal = itemStr;7 F3 g, i j' D; l
! k0 u1 X5 w0 N* o! q topicStr = SysAllocString((WCHAR *) L"system"); 6 E" N3 A+ m. O VariantInit(&requestVariant[1]); , z2 o4 u0 w [ requestVariant[1].vt = VT_BSTR;2 {0 E/ ~# ]7 ~% e; P
requestVariant[1].bstrVal = topicStr;' V+ F9 J2 ^9 G
8 A) b% e1 b! t) ^7 A// Set the DISPPARAMS structure that holds the variant./ B8 P; l* }8 k4 G/ Q
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dp2.rgvarg = requestVariant; 9 n: S$ W" S4 u: Q- E/ I dp2.cArgs = 2; $ D# Y6 y) n* D9 }! ]- W" j dp2.rgdispidNamedArgs = NULL;$ R( p1 _. v8 ?+ W3 \
dp2.cNamedArgs = 0; - z0 s1 I- g7 m6 m. Z$ s& y* O8 C' b, `- D% q
var.vt = VT_EMPTY;: }$ r! G3 J Y& R
& h2 U5 B* Q& @. X _6 k// Call IDispatch::Invoke()& n3 `0 z0 a2 x7 @1 Y+ I1 E
6 J s+ E7 x2 K+ ]" S* `+ { hr = m_pDisp->Invoke(! l' R4 ]" n' P: l5 c. Y4 ?7 H/ {
requestID, $ y. b- x- u8 @7 O. D9 a, X, [ IID_NULL, : H3 W5 R2 e# a0 I LOCALE_SYSTEM_DEFAULT," t* `- ~. E7 j/ |# c
DISPATCH_METHOD,/ A* E7 H+ g& A$ }/ ]0 S8 F
&dp2, 8 Q. [( X& A- Z/ _; Y &var,! T& n8 K# Q; r
&ei,1 E+ e, f9 N' {; M# l# [. L" o
&uiErr);# D/ k- w8 {# {5 T b
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SysFreeString(topicStr); ( H5 g/ B- T7 F: B0 H SysFreeString(itemStr); 5 t( v; m& J; E( e! {0 t+ q9 R请问该程序是获得extend里面的哪个值?; L% P3 M. ]- S! \2 I/ h' e
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????