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: ( x# V+ c f- R% N6 r$ i, p# P( NName = (WCHAR *) L"Poke";; @* b2 k! a6 b) R1 [. e8 Z
u* x( R! N8 |" v" s8 m8 j hr = m_pDisp->GetIDsOfNames ( 8 T# x: ~+ `3 Z* N9 P; H IID_NULL, // reserved ; J& L6 F; `, e( g& O &Name, // Array of names to get IDs for7 }/ U) e( W& S/ }0 E
1, // # of names in the array 9 B: p6 B5 Y9 _7 F' g LOCALE_SYSTEM_DEFAULT, // System locale 7 V- v7 X& A! i8 L, F &pokeID); // Array of IDs to fill on output$ T/ u/ G- Z' x1 s+ A
- u$ r( a9 S# ~6 \0 N: z1 S4 E if (hr) $ f7 Z! y4 R0 d6 I1 `7 i { , v) h0 ~& R9 O1 a$ ~- o3 [7 Y MessageBox ("Get Poke Unsuccessful"); * X+ Z, Q" K, R+ U8 e) J( n+ V) i return;# {- p) S) [3 F5 v' o
} & }6 Z; N( t. o- N [ 1 W0 Y1 k6 ~9 c# S3 c9 z" }/**************************传递数据给extend**************************************/ 4 Z$ R) p# q0 Y r+ h& _5 J pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 e! @, ], \2 l3 o 9 `+ i4 D0 E- }; I* T valueStr = SysAllocString((WCHAR *) L"1232"); 5 `# t0 d' N" a# y) N8 I. O# } VariantInit(&pokeVariant[0]); 0 M1 F# C. U0 Y( z pokeVariant[0].vt = VT_BSTR; ! @- v- g+ k5 i3 r$ F+ {9 G pokeVariant[0].bstrVal = valueStr; 8 J* F; q' t: j4 X& e* S ; I q. d( d: k2 U+ U5 u9 O, O* D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 9 u9 |& G0 G: ~. P8 N0 b4 \ s VariantInit(&pokeVariant[1]); % U: w2 W# T1 f8 t ~: H pokeVariant[1].vt = VT_BSTR; : i) `& {7 A6 Q& c& E2 y7 B pokeVariant[1].bstrVal = itemStr; ! b. |' c- _1 N7 Z! s% p0 ^" s/ i, g. s6 |% `8 {! g' U
topicStr = SysAllocString((WCHAR *) L"system"); * R5 L4 f+ j6 V, B1 B VariantInit(&pokeVariant[2]); * H; E* }, v4 K$ A: g- X' W pokeVariant[2].vt = VT_BSTR; : s/ M* P4 i- I) w2 \ pokeVariant[2].bstrVal = topicStr;+ @% j- T% ~+ E k4 n8 W
1 s3 U' O* E9 y+ R& C// Set the DISPPARAMS structure that holds the variant. G$ R8 V1 R! N/ t0 T5 K: F7 B; l3 [+ e1 C/ V
dp.rgvarg = pokeVariant;' u/ Q+ h2 Z+ r/ H7 W/ |
dp.cArgs = 3; j; e2 w. W' ~ dp.rgdispidNamedArgs = NULL; , W' s% ]2 o8 B+ f- K dp.cNamedArgs = 0; s. P4 p" A. Q2 x; l1 t; y. q2 `. k2 f! N$ l3 Y
// Call IDispatch::Invoke() 5 C2 V8 J; n! w7 e4 X( F/ k+ v2 N5 ]( g+ C2 S' N" f' @
hr = m_pDisp->Invoke( + w8 m$ e7 R* Z/ r5 } pokeID,& S! V7 x* t6 a' {3 e
IID_NULL,3 ], s9 C- D) c8 X9 H( }
LOCALE_SYSTEM_DEFAULT,2 M3 G0 K* G2 e5 w
DISPATCH_METHOD, $ }. C; n i9 \ a3 V. a &dp, : E+ p7 N; H$ S3 L0 l NULL,; W$ `. H/ Z0 e+ [$ }; t* M
&ei, 5 K/ z$ S v0 ~9 r &uiErr);! h7 Z) W1 x$ P
# I8 x0 e0 E) g! Y" X
SysFreeString(topicStr);( W$ b7 G% a: F7 S# I
SysFreeString(itemStr); 8 A0 u# f' T; u/ r8 ?4 |% o SysFreeString(valueStr); 5 _; g; r+ V. {- e; l" @& f. ?6 k' b4 q3 h# k; h( 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??? " ?% }! u# t& p% }- N8 L3 y5 R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????1 \8 E3 E3 f- X; y& x- T4 R! L5 F6 [
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% ~3 \! b# _" q& d; C/ \2.这是request的程序1 m/ D% D; F9 C
// Request a value from Extend6 {( ?: y( K6 u/ T f% u/ o
// + }$ @" [( Z' a// Initialize the variant that will hold the BSTR. Set the variant's 1 h/ h8 G2 y+ _9 S$ `' E8 @// type flag to indicate the fact that this variant holds a BSTR. Place the6 n4 T8 s# R8 s1 C( l e( F
// BSTR into the variant structure.7 ?' H) k% Q7 q) {; U- i5 f
) F8 e2 a/ \0 p9 F- {, ^6 I requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ [# H2 r- }9 p8 ~
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ f f2 B: {, E2 j/ y3 b
VariantInit(&requestVariant[0]); * i2 M) X9 M5 f( ^* U% g
requestVariant[0].vt = VT_BSTR;5 o5 d% E7 B( O
requestVariant[0].bstrVal = itemStr; 4 l5 }! ^6 R4 ]- R7 A6 Z# c8 b* {% m3 `( b: {* |; I) q" Y
topicStr = SysAllocString((WCHAR *) L"system");: v8 i+ G3 G) e" X
VariantInit(&requestVariant[1]); 8 ~' A. Y) G' g( u; {- ^
requestVariant[1].vt = VT_BSTR; ( ~- h4 J& x! a& C requestVariant[1].bstrVal = topicStr; ! _3 k# ?7 u" u5 r: q* @+ m% Z 9 L, d) v2 y- y! V// Set the DISPPARAMS structure that holds the variant.3 z# r9 a* V ?* H9 d9 q# {
8 Q* Y6 V9 a0 C4 V2 O: T dp2.rgvarg = requestVariant; 0 S. W t: p0 L0 b dp2.cArgs = 2; ' w' B K `# p' @ dp2.rgdispidNamedArgs = NULL; 3 D& r2 B$ p! B* r% o6 F( p9 E dp2.cNamedArgs = 0;- T( Y* Y/ G' G7 Q
7 O; L: J" C: x* {$ _( R" s var.vt = VT_EMPTY; 2 d& B6 Z& m3 t/ H1 j J6 q7 V! k: ?" D7 \& ^& I* f* d
// Call IDispatch::Invoke()6 h( J2 N: u! T, a# n3 I
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hr = m_pDisp->Invoke( ' e8 _+ Q3 E/ L requestID,8 E2 F0 J! D" M7 Q( R8 @
IID_NULL, ) J1 M5 p$ l8 F% |$ u0 @5 h8 g LOCALE_SYSTEM_DEFAULT, ; @" u# Z+ {- q0 C1 \% o* g7 a DISPATCH_METHOD, - i1 r0 x E1 \. W- a &dp2,7 K7 Y. i% \5 Y# z
&var,, M3 C4 M8 ^( F2 ^! c+ T9 o
&ei, ) ^' h% S/ S7 Q3 }! G- H$ t3 C! A9 S &uiErr);! V( H! x/ J9 m. _ M, _
! C: R9 E7 U& H) p" G+ z7 @
SysFreeString(topicStr); # ]0 e3 t/ B! s9 u B SysFreeString(itemStr);4 x, n* z1 O8 j; O1 C
请问该程序是获得extend里面的哪个值?$ M! G3 j$ v$ i: M6 h
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????