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: - c% J! T0 m1 JName = (WCHAR *) L"Poke"; 5 d2 L7 c: }% R' { " i) S4 T9 {2 y9 d hr = m_pDisp->GetIDsOfNames (; j4 H4 x2 S7 K9 j- D. i: r
IID_NULL, // reserved) v1 {7 d3 Y. d+ f; ?: N
&Name, // Array of names to get IDs for ' [, E9 Z; t. ]! q- B6 C% ~/ q. N 1, // # of names in the array - N d \6 O" B, T9 [" y7 n D LOCALE_SYSTEM_DEFAULT, // System locale1 F0 @+ _/ c; s9 f! D* _# ^
&pokeID); // Array of IDs to fill on output# X. M) F* w' I7 X' b" N
; M' J6 r0 G3 B if (hr) % V! b. |8 `: P9 b- C. ?9 f { 6 e0 D. Y/ Q @; D3 Q6 R MessageBox ("Get Poke Unsuccessful"); 5 Q" \8 v3 V2 r( r ~/ p return;/ E0 N6 J! ^) o, T6 r* K, x+ _+ B
} / d I9 [: F1 Q$ Z 7 I& J; d$ S* B2 n, v M/**************************传递数据给extend**************************************/* ]' J* F- E3 q: i# R3 s7 [7 k$ ]9 f8 l
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 H! @) r8 _$ r( ^8 S }
/ Y9 v2 h' _) L& _ valueStr = SysAllocString((WCHAR *) L"1232");% x3 Q% }9 Z3 u- W
VariantInit(&pokeVariant[0]); " A$ j8 ]& b3 e2 W$ D; E% v9 r+ T pokeVariant[0].vt = VT_BSTR;! S' m3 k/ ]7 l% {/ x
pokeVariant[0].bstrVal = valueStr;$ g! c7 O0 v: {5 ]% e; q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, G! |% Y0 B5 _
VariantInit(&pokeVariant[1]); ( O" l ]- d) K( _3 k; `% n
pokeVariant[1].vt = VT_BSTR;3 p. z. _0 ?3 t$ k2 ?
pokeVariant[1].bstrVal = itemStr;: {# S0 T* J2 k9 j: h. Z
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topicStr = SysAllocString((WCHAR *) L"system");7 F6 q$ D# H! R3 r1 K! b
VariantInit(&pokeVariant[2]); ! X% u, |: }! t- m5 y9 K; Q7 b1 G' T
pokeVariant[2].vt = VT_BSTR; ! n# x9 @- G% i( b2 h9 ` pokeVariant[2].bstrVal = topicStr; % p+ d( C% d" d' k- _3 c' Q3 \ ; Q3 k8 b7 W, V9 `! x/ k0 w; T: U// Set the DISPPARAMS structure that holds the variant. 6 I6 M$ {, X& V 5 ^3 ^, s" _& b$ { dp.rgvarg = pokeVariant;3 G; G9 G5 Z8 T+ D
dp.cArgs = 3;9 `& r' T, R4 F9 o' j
dp.rgdispidNamedArgs = NULL; % Q; J1 }$ m3 A; E" d; q dp.cNamedArgs = 0;( M1 d$ L- }* t9 \( h: M6 o
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// Call IDispatch::Invoke()0 A0 z6 b( K" l& E6 a1 N
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hr = m_pDisp->Invoke($ F! R0 e$ ]7 w/ e- S2 R
pokeID, 9 d/ d3 k8 c4 d( Y2 d2 ? IID_NULL, " W- h! w3 r7 w2 T$ Z LOCALE_SYSTEM_DEFAULT, 1 f, C9 ]7 d' a( {- M0 ~ DISPATCH_METHOD, Y0 R( F" O- c &dp, 6 w- L$ }$ c9 Z5 Z% J2 r NULL,( u5 p6 P7 S0 D, L- B- J
&ei, 5 s7 ?) v8 k( b# ~+ \. t0 D$ j &uiErr);) x3 M i0 d- b5 U/ u" a
& A6 m E" l) j' M SysFreeString(topicStr); A& g5 B; \6 U+ [
SysFreeString(itemStr); 2 `7 P' I. f( U1 @ SysFreeString(valueStr); ( o' W9 w- C- V! j6 F. _ Y( V/ [/ ~' v B
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??? . |3 `0 i# [6 c) S! o# y& c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/ C2 Q; G* O6 Q# g% k : B+ X: t1 F" ~3 p0 G) G ) X( K, n8 X3 h# s5 w8 o1 ^, m: f2.这是request的程序 1 ]" ]$ \3 E3 Y6 h4 E% r2 e// Request a value from Extend 1 K2 b# _5 C3 }- D% B! u// 3 I9 a: l0 C& \, O8 O9 O" m/ Y7 b// Initialize the variant that will hold the BSTR. Set the variant's9 z$ Z7 n. e6 k+ z
// type flag to indicate the fact that this variant holds a BSTR. Place the9 f9 \3 q- T) i3 m# D
// BSTR into the variant structure. # A. R; C. a" p5 G% R: O4 x/ ~5 R( x/ L
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# J0 P6 Z( B7 P3 P
u5 H) B5 p9 T, ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ @' f: y: H8 j6 _ q3 V
VariantInit(&requestVariant[0]); , E! c! T! p t! b \4 ] requestVariant[0].vt = VT_BSTR;6 D5 b- v, n& `, ~; t# b
requestVariant[0].bstrVal = itemStr; + T9 \ `& A. J2 C: p } ' K& L* D* R; ^# M topicStr = SysAllocString((WCHAR *) L"system"); 2 k7 H1 m( S; b/ r1 l VariantInit(&requestVariant[1]); ) P+ {7 w" v' F w2 [) z
requestVariant[1].vt = VT_BSTR; $ g) w) J) r9 O Q- ~# Y; v requestVariant[1].bstrVal = topicStr;; \ Y4 G# t! s4 a, N4 X" x
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// Set the DISPPARAMS structure that holds the variant.' r6 b. O" Y0 Y/ b! t9 d
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dp2.rgvarg = requestVariant; 9 M% M/ ^% Y6 |" ^5 d' Z dp2.cArgs = 2;9 @0 I2 ?+ ^4 q. V6 {
dp2.rgdispidNamedArgs = NULL;0 E' T+ L# Z0 A; [* @$ S
dp2.cNamedArgs = 0; * K R D; J2 c, {3 e W 1 Q$ u5 ?: U+ w& J0 t/ a var.vt = VT_EMPTY;0 u# C3 D$ k" |5 ~
- _8 c7 F& ]% i' x4 ^5 z// Call IDispatch::Invoke() ; p( i" }+ B9 U + P9 t' p1 U; U9 E* ?7 n hr = m_pDisp->Invoke(" L% |: M8 Q! V) `0 j
requestID,2 K/ j: r' g$ q: F
IID_NULL,5 G5 _+ I M( n5 R: b f- n
LOCALE_SYSTEM_DEFAULT,! P4 H' Y( K" z1 Q6 {
DISPATCH_METHOD, 8 }% T" }9 [; L+ N* c' R &dp2, ) ^# E& T+ D6 U5 h m: [ &var, 5 u6 G" j- q/ U) z &ei, + e5 L' B% f& j &uiErr); 2 q$ j8 `5 Y% Z H, D* T m- k4 d( J: k9 A5 O. O% P U
SysFreeString(topicStr); ( }1 E% }0 ~4 _ ^% A( j SysFreeString(itemStr);0 ^7 B4 w" }- c2 p' b, O/ g
请问该程序是获得extend里面的哪个值?7 w! [$ R2 P( O( W+ L
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????