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: 8 L, K. u" w0 }Name = (WCHAR *) L"Poke"; 6 H$ X" @6 g* x' b' V* V 2 Y5 G$ O) a6 j* }# Y/ v hr = m_pDisp->GetIDsOfNames ( * E) |$ \0 j) E IID_NULL, // reserved! }5 K7 V; j0 _: {9 q5 K) n9 {. C
&Name, // Array of names to get IDs for( x4 T: I/ ~( u! c' k5 P
1, // # of names in the array1 T @; U0 H: P+ y8 x7 i
LOCALE_SYSTEM_DEFAULT, // System locale 5 V2 f- d% P7 Y7 P &pokeID); // Array of IDs to fill on output. v1 ^# t6 B2 c) b8 D
% u; f1 d' ?- f, b if (hr) 9 T- f7 X; p$ f7 [8 c S% |( ` {% n. Z$ R6 D: _) f
MessageBox ("Get Poke Unsuccessful"); # t+ M+ T- A& h% X" X' B" L ]/ y; G return; 2 A; _8 C+ G% A% c0 a* s }* c; s6 m% S* n+ h4 d: j
4 n: @9 n4 D) G! Z/**************************传递数据给extend**************************************/ 7 L4 _' c$ m5 W8 }/ h& t; ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ; Q* m/ `" G. H/ \8 @1 @. f( b ; N1 S" N7 m4 G7 l/ n# G4 b valueStr = SysAllocString((WCHAR *) L"1232");8 K- s2 }( L R. B; i
VariantInit(&pokeVariant[0]); 5 ]0 b( C$ [8 d" }. a# m! y- j# c
pokeVariant[0].vt = VT_BSTR; * l2 b+ T9 n/ D. A pokeVariant[0].bstrVal = valueStr;: z8 i% P+ j1 {
, @" R# }7 q9 l0 B4 F% y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 f( g% q! M$ e! C) P1 U+ |9 Y VariantInit(&pokeVariant[1]); 3 p' q& G$ b6 V5 C3 R, z
pokeVariant[1].vt = VT_BSTR;9 Y \2 T4 V! J
pokeVariant[1].bstrVal = itemStr;" X _* X2 ]5 L- F g
9 s) i+ M7 s# f2 U topicStr = SysAllocString((WCHAR *) L"system");- u" I/ }1 P. ~$ V
VariantInit(&pokeVariant[2]); + D( c1 _+ f8 `8 |& z% C
pokeVariant[2].vt = VT_BSTR;5 D6 x8 _, \& {% n! e0 d, B
pokeVariant[2].bstrVal = topicStr;" W0 D* h' v5 ^6 y0 l7 J. u
0 E5 b& Z& c/ }) O$ v! a9 P8 F// Set the DISPPARAMS structure that holds the variant.3 g: f* K. u) j% L; z
: v/ Z6 z( R- e, Z+ F, l0 x
dp.rgvarg = pokeVariant;5 ^: D: b' X8 r3 p
dp.cArgs = 3; N, G0 R9 r) N* b/ S dp.rgdispidNamedArgs = NULL;; U. ]6 T. y3 M0 }: p" |, M. P# d
dp.cNamedArgs = 0; , D. d- J7 ]$ ^; V/ u5 i3 ^3 j6 c6 ?% J1 B9 X
// Call IDispatch::Invoke()3 F v0 b- p4 s4 L8 S! {7 M
- K# _' J8 U/ D6 y8 S
hr = m_pDisp->Invoke(' w$ G$ i. o8 h7 T ]3 O" V
pokeID, / v% \7 z( R" J: g! b IID_NULL,4 O. @ P& u$ \4 C# h+ s
LOCALE_SYSTEM_DEFAULT,& a: V& c+ D3 Y2 J z8 E
DISPATCH_METHOD,0 Q) k5 y/ v" o9 G) s! v
&dp,+ L/ |% l* T8 f0 r& A& Y- }: B( W
NULL,/ [/ h) `& _, ^
&ei, & [6 v' i; T: ?2 \ &uiErr); 5 J H, w0 T, s . H( ?2 s, S$ D SysFreeString(topicStr); $ n4 o6 q/ F ] j/ ?" P SysFreeString(itemStr); {5 e1 E" q; ^* `; }
SysFreeString(valueStr);( L8 l5 H1 B' u. b1 c
, I( ~9 V) ^" Q; m9 L P% u6 W
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???' ?9 f U2 @( t" B, 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???? + F5 P- a5 T% }# C; V: U # r+ [" [8 n d \( ~+ W0 Z3 p, O5 T" s. f
2.这是request的程序& h$ N; w+ G' B3 O; S
// Request a value from Extend" M' D- ]. r6 A- k# S1 [
//; v, t4 H! U+ R+ u8 T# x; q0 h
// Initialize the variant that will hold the BSTR. Set the variant's 3 c$ }& G6 g* O+ o) ]// type flag to indicate the fact that this variant holds a BSTR. Place the - c; @8 y, J. T// BSTR into the variant structure.) U3 E/ \- c2 C2 ]! E# [. K
+ I: p% ~+ Q# w) d! X& [7 h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( U$ w; T9 i) i: @, Z/ f
3 o/ |, r& c) L
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");8 M; C7 w! R) ?- M4 B" n% e
VariantInit(&requestVariant[0]); D |5 T2 N5 J- j; d: K
requestVariant[0].vt = VT_BSTR;4 {5 h3 C6 t8 K( y3 {7 M6 Z+ Q# z# J- C
requestVariant[0].bstrVal = itemStr; 7 k3 W" r, H9 a4 j8 u2 o2 s7 Z* R- d8 g4 ]
topicStr = SysAllocString((WCHAR *) L"system");7 E: \! r- t/ \" v( F
VariantInit(&requestVariant[1]); ' C) o( h6 I- y. a( w! m" o
requestVariant[1].vt = VT_BSTR;$ P+ Z7 u' B9 L5 D0 P' p7 |
requestVariant[1].bstrVal = topicStr; p0 S' n0 i! m* n9 Q5 F: S4 t7 h- N& u! Z% D
// Set the DISPPARAMS structure that holds the variant. 5 P* G; }; S- Y, F5 y 6 c& p* {! K: Z4 U( M7 \ dp2.rgvarg = requestVariant;8 o5 N* h' s) O0 b
dp2.cArgs = 2;% L; Y0 v) _* u$ I
dp2.rgdispidNamedArgs = NULL; ) Q! k( L8 h, O% Y8 ? dp2.cNamedArgs = 0;6 _; r+ |3 r7 _5 X0 C7 C' \( d @
) r$ h9 ]; W2 j! G var.vt = VT_EMPTY;; b/ E* y. u* s% h
$ L: n+ p L) \9 K- W/ J
// Call IDispatch::Invoke()9 t1 p9 f6 X3 ^6 d+ ?
1 M- K; R0 n/ p$ ^9 | hr = m_pDisp->Invoke( " V% Z/ B% e, t requestID,0 @3 z0 q8 k0 G( @
IID_NULL, + B! O9 e" R& W; y$ } h- R LOCALE_SYSTEM_DEFAULT, ' S: M6 ~* |2 A7 A DISPATCH_METHOD, & Y1 U$ F q8 s &dp2,6 V1 M8 h f! i4 n- a
&var,. I- r: U, w7 K, y6 {2 U1 R
&ei,1 c6 a7 D. Z5 a$ \0 j7 f7 F
&uiErr); # @. N' G; Q( y6 h+ k8 m/ Q, d8 h! z8 Y: r
SysFreeString(topicStr); B( r/ w, Q$ |. Z" f( }
SysFreeString(itemStr);) l$ p" @; T0 k# B: V: w6 m
请问该程序是获得extend里面的哪个值? 5 q o9 Q2 J7 F- }0 @; ?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????