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: / r! A# o, N! Q+ } U" }! O4 \Name = (WCHAR *) L"Poke";! w" h5 G7 m- ~ a) W7 d! w5 o- i
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hr = m_pDisp->GetIDsOfNames ( * k5 o6 l- P: k IID_NULL, // reserved % X' v1 U) K+ u8 c: c &Name, // Array of names to get IDs for3 b$ I9 p+ i: u) K
1, // # of names in the array* Y. @, _9 j8 m5 R
LOCALE_SYSTEM_DEFAULT, // System locale0 e6 E/ f1 _) R' v) u6 |
&pokeID); // Array of IDs to fill on output, l! X9 G7 a3 n: ?! s3 \6 t H
3 ?/ b+ w, Y+ U/ |. M& `# t if (hr)( G. N5 X3 r9 f, l9 m k2 U
{ : b4 H7 `: N3 f- \. ]& Z MessageBox ("Get Poke Unsuccessful");7 o$ X3 b" @* u, h4 v. _
return; 3 ~, V) w3 K: K }! F* ~5 z( ~9 N6 T9 N2 ^ E
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/**************************传递数据给extend**************************************/ : G" d L0 b# r pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);; H; V& `1 v- d
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valueStr = SysAllocString((WCHAR *) L"1232");4 \: ]; f0 z3 B$ T. O3 b7 n
VariantInit(&pokeVariant[0]); + ^# L) j- P' q; Y5 O
pokeVariant[0].vt = VT_BSTR; 7 ^; E5 t) z! m; W, G$ E7 D( d pokeVariant[0].bstrVal = valueStr;1 i- |- q# e* c0 O, F$ z& A* F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* B& B5 u1 q' @) l9 \5 l/ g
VariantInit(&pokeVariant[1]); $ O& U/ Y, t5 V! D pokeVariant[1].vt = VT_BSTR; 3 l& K* F5 t$ N; i( U4 U pokeVariant[1].bstrVal = itemStr;: z$ w+ L6 |" F: B
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topicStr = SysAllocString((WCHAR *) L"system"); ' \) q! T9 s9 g1 o5 H VariantInit(&pokeVariant[2]); f k0 R" s2 `- ]* ^# b6 d0 L pokeVariant[2].vt = VT_BSTR; $ P0 @2 h: A# I; k T pokeVariant[2].bstrVal = topicStr;* b6 X4 j1 y7 Q+ r m, b! `
2 H. T/ K2 [0 N; J. H// Set the DISPPARAMS structure that holds the variant. 1 z" O8 d k4 b s4 X( I" j; W# t' o! o/ ~& R* u g2 H+ Z" O
dp.rgvarg = pokeVariant;/ c& _% k8 R9 t( i5 k" V9 e8 [/ k
dp.cArgs = 3; % ~# G3 R- B2 N& H dp.rgdispidNamedArgs = NULL; 3 K5 Q9 Z% U0 y. a: _+ _- |+ N dp.cNamedArgs = 0;# `: `& H% d% L* m2 e
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// Call IDispatch::Invoke()0 L1 T# J6 f( @2 Q7 O$ H1 J7 Q K
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hr = m_pDisp->Invoke( 7 K' u; W2 }( [: v pokeID, ( e1 t( o# s* |& f. } IID_NULL,2 G: X5 r- ]: r- e
LOCALE_SYSTEM_DEFAULT,; f; V9 }+ G: E8 u4 `$ K3 L, C
DISPATCH_METHOD,* z) `1 J i" i6 H
&dp, 2 z, Y( x' }1 ?9 c: R) P NULL,# W3 b/ K" H0 U5 G) d/ b: r+ V
&ei, 9 V* ^3 p' } \! s4 e! V3 [ &uiErr); / t) h* B9 Q! U+ _ h; V( Z9 r5 n+ `! f* `2 K- m ]3 |- |) E) K" g
SysFreeString(topicStr); , k+ J3 ^% y) j SysFreeString(itemStr); j; Y% E+ b; A
SysFreeString(valueStr); , @, q+ d/ w5 F9 e g% m( k 5 f: v4 B0 C& N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??? ; x' D$ s1 Y2 u6 @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????" z) v+ `2 ?; H& V
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2.这是request的程序5 v* K. q+ {$ X0 U/ H, G, [, W+ _
// Request a value from Extend) l$ O) t% r9 N3 c6 X/ {/ n! Q
//# k4 ^( w' S: ^% S6 G/ I0 D
// Initialize the variant that will hold the BSTR. Set the variant's / R4 c% H, D3 j// type flag to indicate the fact that this variant holds a BSTR. Place the: }5 z o3 A: d+ e. t k; X8 Z- r
// BSTR into the variant structure. ! q4 v0 M# } s" |% ~' |% _8 C' e# Y1 n$ G- t* c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);& j. R. I# s# l$ T" K J! Y1 t
0 _1 m8 \! A" O5 V; s% E itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' k, Q5 F. E* S' ?3 u* ~5 J
VariantInit(&requestVariant[0]); 9 L% \* I$ @! Y4 o5 F7 Q requestVariant[0].vt = VT_BSTR; / r N ]5 s# @9 s" Y' \ requestVariant[0].bstrVal = itemStr; , O1 |/ s5 ^( F3 G4 Q: K8 N# @( c1 Q5 P# E8 k
topicStr = SysAllocString((WCHAR *) L"system"); 2 l7 N: j8 c1 S3 U2 u VariantInit(&requestVariant[1]); 3 F( N6 C/ j1 [: l; _8 ?1 @2 E
requestVariant[1].vt = VT_BSTR; 1 c3 `7 N* E8 j* k0 t) L requestVariant[1].bstrVal = topicStr;# u8 ]7 K# p7 i( }# _
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// Set the DISPPARAMS structure that holds the variant. 4 e: b7 d1 R, k) q! } j( m0 r" ]% O6 ^' } a
dp2.rgvarg = requestVariant;- [9 r5 e4 f7 j/ h0 v6 t
dp2.cArgs = 2; ; e8 G' F+ A$ m F. e dp2.rgdispidNamedArgs = NULL;8 b; B0 z5 {: f5 S3 p' h v4 s! y
dp2.cNamedArgs = 0; & m6 s3 N& b" w$ f2 W- J3 S" s* P' B1 s3 Y7 g; O7 l3 A
var.vt = VT_EMPTY; 0 ?7 o S" V; Q* } , ]7 v6 [* o) z" S// Call IDispatch::Invoke() / u2 Q* N1 q5 `0 l % U" F7 B7 k) W* v; I hr = m_pDisp->Invoke(3 ^- A- n- \' J
requestID, R/ M+ d1 e E! A. G3 z IID_NULL, 7 h) F( E, m/ y( N( d$ A LOCALE_SYSTEM_DEFAULT,( L) T0 O0 L! k0 X2 H" q% h! d/ \
DISPATCH_METHOD, " R7 [* j2 ]) Q' b &dp2, ^0 k) T5 a# Z1 Y2 w: o &var, h6 q- P8 I9 ]* [0 t &ei, & R5 d V- G- A& U, { &uiErr); 6 |5 p: l* b1 |. o . g6 u* M* Q) H* b4 A- T- C SysFreeString(topicStr);9 F/ K" F! O# d9 h2 q
SysFreeString(itemStr);8 H: b' d. K1 S, J
请问该程序是获得extend里面的哪个值?( N: P+ g4 _3 k- T3 u: Y& e
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????