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:& S" @) Z _) k, E" v: e1 [. f
Name = (WCHAR *) L"Poke";1 j% v. c7 } {1 G7 r3 p' W
2 \& ^2 f5 I% O/ B+ O! N) K hr = m_pDisp->GetIDsOfNames ( q c O' j9 _, Q* Z IID_NULL, // reserved 9 C7 B5 L' z! k* o) k9 O &Name, // Array of names to get IDs for7 _0 |8 k1 U' R7 o# D% n
1, // # of names in the array, N! {) D- r! z7 B" T6 ]* H% ?
LOCALE_SYSTEM_DEFAULT, // System locale/ I- A" l; r" C3 @- o" G% L. A( {
&pokeID); // Array of IDs to fill on output ' }! D/ D! |8 s ( h5 E% s) J; i/ T
if (hr)& o x! P" m$ j
{) v; t/ V) u: r+ z2 i- Y$ z1 @
MessageBox ("Get Poke Unsuccessful"); 9 D- s# ]. Q) z0 J+ l8 R: V [ return; 5 |6 b; x2 J8 S7 E% z0 { } _# K! Q5 A" E W0 }
: w7 t- R# T3 W) y/ W0 X/**************************传递数据给extend**************************************/* l6 G6 f1 f; d7 @( t+ h; ]
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# Y# X8 k \3 ^! X$ n! |- w
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valueStr = SysAllocString((WCHAR *) L"1232"); , d' p! x0 H5 W4 |; ~' Y2 K VariantInit(&pokeVariant[0]); ! c! g9 ~ v" U pokeVariant[0].vt = VT_BSTR;5 g( T4 Y# ~ t# j0 }! H' x
pokeVariant[0].bstrVal = valueStr;8 f+ g: @; X' Y
* }: o' E$ u" F' m3 }" s- ?8 O% l" F itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' j* [8 a! n; V" j
VariantInit(&pokeVariant[1]); " H, x2 y) m: u# X/ |3 f* ] pokeVariant[1].vt = VT_BSTR;3 M0 R8 J8 l& n) E
pokeVariant[1].bstrVal = itemStr; " p9 j/ l# J5 B4 r ) D) S9 _) }5 x& p- g3 l* S! y; F topicStr = SysAllocString((WCHAR *) L"system");- x* V* t$ |* d5 C/ V
VariantInit(&pokeVariant[2]); ! g& f: `/ i5 c; U( ] M: C pokeVariant[2].vt = VT_BSTR; 5 m: Y# Q* T; n* [ pokeVariant[2].bstrVal = topicStr; 0 z3 i. C5 ]0 f8 y6 k4 Z2 E + ^3 _' B/ Q( w' x// Set the DISPPARAMS structure that holds the variant.$ j* r4 V1 t- Y$ c; P
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dp.rgvarg = pokeVariant; , s% u3 o! D/ I( ? dp.cArgs = 3;- Q6 ?8 x" t0 ?
dp.rgdispidNamedArgs = NULL; , a9 H( l7 j8 y( u dp.cNamedArgs = 0;4 i; C. k. N/ f }' u
: N0 c% S5 K& n! J// Call IDispatch::Invoke() * d; X& N' M! [6 d `1 v$ Y8 t2 {: [$ E) v8 b! X# ^
hr = m_pDisp->Invoke(- j; }% F7 M( ~* Q# u& T* O
pokeID, # w$ b; `8 f# K M IID_NULL,+ X1 ]' L2 q4 _
LOCALE_SYSTEM_DEFAULT, 6 ?$ A5 l7 y9 \% s1 Z DISPATCH_METHOD, - L) @* O3 U# j& @$ D5 a &dp, ) F/ S! O0 a" f5 O, D NULL, " k1 W p/ d' I2 I &ei, 5 G. \$ R! S; r! L0 l% O; a( N1 x' W7 k7 L &uiErr);- R" P) `$ H( S& Z) A
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SysFreeString(topicStr); * U7 ]5 G7 k! s9 p4 ]% J* E6 r3 V SysFreeString(itemStr);" j* N. a; Y/ s K; c
SysFreeString(valueStr);) K* P8 C9 k( a4 }
0 L# f. V/ ?7 D; b+ L) J" 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??? - B# b2 I# I5 _* }# t3 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???? 6 A; ?7 p. T7 I. y% z0 v 3 h% V ^. R5 y5 `' U+ A& [$ B/ W4 X/ g4 `
2.这是request的程序! a5 r. |7 P5 v7 D
// Request a value from Extend ' N& V% ^8 @) W8 C* ^6 a9 N# l2 g// 0 T) r% y. _* |. D# ?- s V// Initialize the variant that will hold the BSTR. Set the variant's + s1 Z* M; ]! {& Y! _9 I// type flag to indicate the fact that this variant holds a BSTR. Place the1 O5 U7 o% |2 }8 s7 `0 F# d
// BSTR into the variant structure.& E4 v7 T/ G( y, c* ^8 d2 |4 O6 v7 ~
2 k; ~, [) b7 Z0 }3 A9 v requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 5 [9 }; u( B, I+ \# L5 f9 [' c! H % v% ^/ M* }( W: S5 a1 Q$ P
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 8 M! i$ K t7 u5 h. m VariantInit(&requestVariant[0]); ( H) E3 h' M2 T7 v9 G9 `
requestVariant[0].vt = VT_BSTR;9 D: G0 i% g# X7 [- v
requestVariant[0].bstrVal = itemStr;. S( w; D. H9 B( f- _, |0 \
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topicStr = SysAllocString((WCHAR *) L"system");9 i0 Y6 f8 f k" ~5 W" |
VariantInit(&requestVariant[1]); 7 L$ \/ @2 v5 q, P$ u* d) b requestVariant[1].vt = VT_BSTR;9 G, y1 H- ~# F
requestVariant[1].bstrVal = topicStr;$ q0 Z6 r4 J' ]0 o% t3 D
! o7 x# |, n+ l// Set the DISPPARAMS structure that holds the variant.4 A1 Y4 Q/ T3 P
2 r# P& B4 d6 d. Q$ `% H dp2.rgvarg = requestVariant; ) F! ]' w0 t% b7 n) X# I5 [5 F& @* A dp2.cArgs = 2;- c2 R! x- k' i) s: s" D
dp2.rgdispidNamedArgs = NULL;7 x5 q q' j8 T8 q& p
dp2.cNamedArgs = 0; 1 ?, Q" H7 f$ P+ Y & ~& N, K* f! h$ ^3 A var.vt = VT_EMPTY;2 L- u+ ?+ a4 [/ u& e* q
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// Call IDispatch::Invoke()+ C; b8 z) ]& ^( _3 a' O2 I8 {
i- i4 |; ]2 s" d$ }' a hr = m_pDisp->Invoke( 4 H" i* L+ r9 G requestID, ( r! M, ?" h3 ~2 L3 {, P9 p IID_NULL, # s/ a1 L! M4 g" {! C LOCALE_SYSTEM_DEFAULT,. M* q2 _5 t" e5 t7 t- u
DISPATCH_METHOD,8 g2 h U0 f! ]. A$ J$ X
&dp2, 2 }/ x: g1 H1 ]0 Y9 o9 T0 t &var, 1 k5 @* L* A/ n &ei, 4 Z. ~' e$ \/ ] &uiErr);2 F- d) i* E$ h" O8 j3 r! W+ F9 V
/ u& C- G3 y& M# F: C. ~ SysFreeString(topicStr);5 z8 O3 b8 u; U/ a! o/ D* Z
SysFreeString(itemStr);' T& d4 G6 a3 ]) e Q/ }
请问该程序是获得extend里面的哪个值? 9 P1 p0 i" v. ?8 q9 J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????