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: - t- O' H& v {5 u2 t# ?( R7 TName = (WCHAR *) L"Poke"; - b) ]! t# h# j3 l ]. U6 V : l/ H- c! C( K7 C hr = m_pDisp->GetIDsOfNames ( & j5 C0 D, Y) B, X( p: } IID_NULL, // reserved8 M- X. O; @7 y( B$ B& n. L
&Name, // Array of names to get IDs for3 A3 E' F* i; E) @5 Y" t! c
1, // # of names in the array6 O; ]" o: K/ n# r. ?5 l* W5 ^9 L
LOCALE_SYSTEM_DEFAULT, // System locale* p, z+ L8 @8 O! D8 l
&pokeID); // Array of IDs to fill on output" k' d4 Q7 N- t
2 T1 ^) O4 g. |- m* F if (hr) ( ~9 ?5 h7 c+ g1 B K( W# x: f {( J* V/ I2 t. }. M
MessageBox ("Get Poke Unsuccessful"); , z! }5 \3 X" Z- @ return;+ S: i6 c0 i3 S' E/ {4 q
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/**************************传递数据给extend**************************************/9 }5 @ T# N+ [( {5 Z) f0 A: z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) k1 u! I& k0 p
' L2 a) n+ |& C5 U5 a ]3 h D valueStr = SysAllocString((WCHAR *) L"1232"); a" K' J/ o- O. l o* O8 Y% W; `
VariantInit(&pokeVariant[0]); , u* _0 S7 q8 t J pokeVariant[0].vt = VT_BSTR;0 ~. e8 ^% T. e2 _) j
pokeVariant[0].bstrVal = valueStr;4 F' D! T: s, n: g, P7 ^6 b2 I
! x- P- o, |# ?: T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' @1 J; j( ^0 O9 i+ c' u
VariantInit(&pokeVariant[1]); / t' [( T- [: I( e" `
pokeVariant[1].vt = VT_BSTR;! R. P/ q/ k6 S- t" }, K
pokeVariant[1].bstrVal = itemStr;5 ~# y. W& t/ ~; U( Z
- X$ p% Y5 l; g0 B1 }9 ~6 ]0 R topicStr = SysAllocString((WCHAR *) L"system");2 C0 g+ r! P0 G8 b( g% R
VariantInit(&pokeVariant[2]); , k' m! I: Z, \1 K# Z- o1 O% p pokeVariant[2].vt = VT_BSTR;) T& ]6 v: n: D- m+ t/ s) d
pokeVariant[2].bstrVal = topicStr; 0 O* ^) k( P" q7 p # e" F: u7 X7 M( U$ W// Set the DISPPARAMS structure that holds the variant.. z5 U$ [2 Z" u" u7 Y
9 t0 ~- Q, e/ G; E
dp.rgvarg = pokeVariant; , @2 h3 B- w* d+ P2 m. i dp.cArgs = 3; ; m1 ?7 s9 X& B$ [+ s dp.rgdispidNamedArgs = NULL; / [. ^( Z% k s! H% K$ N: Y; y dp.cNamedArgs = 0; 9 I; ~) I; T6 e! k 8 a+ y% E' T2 u! L, |// Call IDispatch::Invoke()4 d* s5 U/ O" l+ O
' b1 D4 |3 T, h
hr = m_pDisp->Invoke(0 A/ C5 w& I( D7 v" u
pokeID,0 v' I, |7 X+ M1 _
IID_NULL, , W* _. f9 z0 X5 V+ k% X1 H. n: ? LOCALE_SYSTEM_DEFAULT,+ `! s$ B# Y8 a# ^
DISPATCH_METHOD,& ^4 L/ {2 ^* e6 I
&dp,8 `$ J) `8 a- E% s3 Z) |/ i
NULL,3 i* [( t' T: M( S! y6 A* a3 {/ E
&ei, - t: s# U/ b9 `: [& D8 _ &uiErr);; Q- p" E; _& A6 m( L8 G
3 v! S4 V9 c4 ?& V% U SysFreeString(topicStr);- d1 O) L" d, ], b
SysFreeString(itemStr);* v- F5 r" N" L' x
SysFreeString(valueStr); 9 V6 \- e# W- z/ `5 E ) ]0 ^' {6 u2 {3 G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???# Z# |) B) Y5 e9 }. U+ T# k; q1 Z. 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????/ i! u2 B0 i+ @9 C2 `
' e! M& V# Q: c' w ; A4 m: T6 _. b/ z8 X+ I; ^; @. V2.这是request的程序 7 {/ v% u& V1 O9 \( \& L- ?/ t// Request a value from Extend# U( L0 a ^( u: p$ ?& {5 K+ ^* D8 D1 }
//" k5 z0 ?" a$ q4 C" h, a& l
// Initialize the variant that will hold the BSTR. Set the variant's - K1 R+ T& I2 L; X0 I6 V// type flag to indicate the fact that this variant holds a BSTR. Place the: c& i7 J3 R9 {8 ~
// BSTR into the variant structure. ; Z( E# {) }' g8 b. y ( g! n1 U+ T9 N* P requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 _3 o% Q1 g1 a* M; Z5 Z % O) T" ^& X6 a/ M6 l+ b7 b
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( T+ ^1 x9 Z/ Z
VariantInit(&requestVariant[0]); & ]; b; B. r- w requestVariant[0].vt = VT_BSTR;& e5 m* @. V8 A
requestVariant[0].bstrVal = itemStr;* {% b5 a. D% x8 x/ ?, S
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topicStr = SysAllocString((WCHAR *) L"system");3 U5 O0 h& [) m7 E8 q& d
VariantInit(&requestVariant[1]); 8 w+ X3 _* b: I M c
requestVariant[1].vt = VT_BSTR;1 M6 H& n$ y0 [6 h
requestVariant[1].bstrVal = topicStr;7 n e) j: H& t% r: D7 D' _) x2 M
7 ^' r4 S/ ?' ~5 x3 z
// Set the DISPPARAMS structure that holds the variant. + w$ {* o k' w6 b* J0 \1 S* d / M/ b6 |: o" @( I" V* P4 M- X& ~ dp2.rgvarg = requestVariant; 3 }$ d# q5 |; L4 J& ]1 e dp2.cArgs = 2; , w) |7 ?+ t! t8 S dp2.rgdispidNamedArgs = NULL; ! M( L7 z9 y, D. @; D& g dp2.cNamedArgs = 0;8 @$ M! Q; Q1 f( ~
: j- S# I; n8 }
var.vt = VT_EMPTY; ! ~& } r' q# C* C+ q2 W4 O$ ^7 }, n" s
// Call IDispatch::Invoke(), r% p3 {/ b, O% F
6 ?& m# t+ H6 T0 O hr = m_pDisp->Invoke(. C8 a" h8 _5 j1 M- K5 ~/ @# x
requestID, $ ?9 ]$ l+ }% J) ]& f, b. O IID_NULL, ! b1 O6 ^. w# ]) q. F, e8 D+ {* a7 D# K X LOCALE_SYSTEM_DEFAULT, ) S8 ~+ I: k' J2 ~7 u9 E- ~3 W/ S6 E DISPATCH_METHOD,) D8 ?/ g5 f- Q
&dp2, 9 J' m4 n- W/ d# C/ U2 Z &var,$ X, O. e) O) d3 @* q( i5 r
&ei, 2 ?( J6 ^/ y' W( P2 L &uiErr); o' {" F) w3 Y0 e2 E ; \1 k1 B. J0 E$ s$ S r( {4 A! B SysFreeString(topicStr);5 s% I( A4 R6 f+ b' Q
SysFreeString(itemStr); 7 D$ ^9 R$ F0 c/ ~0 j0 y. j1 U请问该程序是获得extend里面的哪个值?# ?. g9 n2 }5 d
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????