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: . N! \7 V- o* IName = (WCHAR *) L"Poke"; # [" X+ S0 h" z 5 a3 `+ ]% L! P) z5 C% K
hr = m_pDisp->GetIDsOfNames (* u: {) M: W& N) X
IID_NULL, // reserved ! V( g* d+ S0 P) g! t &Name, // Array of names to get IDs for * h. u! N- m; _* i9 W3 Y- \ 1, // # of names in the array " Z; F* `( f) Y' }! U9 ]+ u! ? LOCALE_SYSTEM_DEFAULT, // System locale' j# S# D* h; U
&pokeID); // Array of IDs to fill on output% P; y( L8 W0 x- i
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if (hr) 3 V0 b) i9 }) f$ z3 ]; F { 6 V9 g# A8 c5 n3 c MessageBox ("Get Poke Unsuccessful"); ! R3 r r# D( _7 U return; - {# r; k' \; b1 D } ; ^( B( f, T4 L( n, | ?+ C; ^ v4 @9 F4 {: W
/**************************传递数据给extend**************************************/- V7 H! U: G; W7 }) D
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: c4 K8 [9 u/ i) M$ {- L# B' ]
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valueStr = SysAllocString((WCHAR *) L"1232");! P; j' \0 p8 i% _% L% W( U# ]
VariantInit(&pokeVariant[0]); - c- R- F* m) u3 Y
pokeVariant[0].vt = VT_BSTR;: x, Y; q3 W7 U& w/ Z" h$ F: Q
pokeVariant[0].bstrVal = valueStr;6 Y# ~8 Z; v. I0 \
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; ?2 Y( w9 R3 O- q/ U" `
VariantInit(&pokeVariant[1]); 0 L* d8 w6 ~7 e, m7 n8 ? pokeVariant[1].vt = VT_BSTR;: u2 R, L$ R: j1 I+ J9 s) t( {
pokeVariant[1].bstrVal = itemStr;; j. k5 S/ o4 y: B$ t, p% d
/ s1 C7 ]2 w G2 X' |" Q8 a2 P topicStr = SysAllocString((WCHAR *) L"system");. n$ I5 v: M. \3 p W$ k6 w7 b
VariantInit(&pokeVariant[2]); * C$ |* J# z' [, S pokeVariant[2].vt = VT_BSTR; , I5 `5 I, B. l2 s! }! y pokeVariant[2].bstrVal = topicStr;, S9 h6 S+ g* K8 s
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// Set the DISPPARAMS structure that holds the variant.& m6 V7 {0 Y4 p( T. S
9 d V& f9 F- v+ S dp.rgvarg = pokeVariant; 3 \' {* X" S3 K! W$ K" R) X dp.cArgs = 3;1 H3 N# J( P P
dp.rgdispidNamedArgs = NULL; # g" F' _ Y/ V- M dp.cNamedArgs = 0; 2 U B* g* }- z9 ] : |( ?/ P$ t3 @3 U4 v$ g// Call IDispatch::Invoke()% R) T# B' v& }2 S( c; J
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hr = m_pDisp->Invoke( u S) ?1 N( V5 v$ u0 F
pokeID, 6 L7 U, i/ X; Y- u. S1 B. Y IID_NULL, / C: F V8 f6 }6 s& H LOCALE_SYSTEM_DEFAULT,# f9 x7 E0 T( A4 E- O/ y4 t
DISPATCH_METHOD, 8 }/ f6 R. @; b0 J) Q: u$ O" d" l! Q &dp,: p3 ], P5 L1 q7 V9 @7 A% c3 _7 `! b8 ?
NULL,% _- U! j" \ j6 D5 c
&ei,: f8 t3 ~5 `& z0 r4 @
&uiErr); : ?( ]/ w Y7 U/ k! K / z2 W d" B* K SysFreeString(topicStr); * C( ^" [$ W; Y; d; j SysFreeString(itemStr);1 D9 a/ o& J" O" P1 o
SysFreeString(valueStr); 3 z6 q) T& K: Z2 C) N 8 q2 N& [' ~: J4 a" B" q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???: r9 ~5 q( z; ^9 r4 K% n
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???? ! ~0 K& t1 C9 Q; ?. i6 ] ; ^8 |+ e9 b- [2 V$ X8 f! |& p; b% o; k3 _: M
2.这是request的程序4 W- f p- Q9 z. c! X/ [5 j
// Request a value from Extend0 d6 R9 t% E7 Q
//) |3 A9 _" L8 e! p( L
// Initialize the variant that will hold the BSTR. Set the variant's% V3 @; c8 ?# b, r
// type flag to indicate the fact that this variant holds a BSTR. Place the$ U* R* n; \: W; ^+ _* C7 k
// BSTR into the variant structure. . t$ R7 a( H2 k3 v5 h6 @7 Z. u- d* b+ U3 P3 @" T
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 z0 a6 |) V( l9 b( c! b# u' l" q9 [( o ( j. a! G+ ~( P0 h
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 V; D0 S; u' ]( M8 T VariantInit(&requestVariant[0]); 4 s3 J! s% O& h) _( C: E( r* O
requestVariant[0].vt = VT_BSTR; : p$ c0 N1 q! @' B requestVariant[0].bstrVal = itemStr; . W1 b* a4 e, V - V& p/ c" y* C9 Q4 E/ L topicStr = SysAllocString((WCHAR *) L"system");. y0 n5 V: d( C% _$ W( n6 ~& x
VariantInit(&requestVariant[1]); : [( m. T2 O1 ?& |: I! L7 \
requestVariant[1].vt = VT_BSTR;! ~8 I$ ^9 T! ]2 V9 T
requestVariant[1].bstrVal = topicStr; D$ H$ S& a0 v% |" e
$ t% h! k& S6 P// Set the DISPPARAMS structure that holds the variant. + S7 O) L0 U$ t ( Z: Q4 U. l& [4 ^1 P( o dp2.rgvarg = requestVariant;( I. H9 E8 v, W, G! A. W) u# D
dp2.cArgs = 2;- ~; T( U3 Q$ G& M% @
dp2.rgdispidNamedArgs = NULL;' G2 P# Q- [7 @6 ]8 A
dp2.cNamedArgs = 0; $ \5 U6 P$ j) O4 {: \ @0 Y+ s; A) g3 `. j, e) c" y var.vt = VT_EMPTY; 4 {7 d' F p h: h9 n7 H& {) o6 C$ g6 ?, F
// Call IDispatch::Invoke() 5 s- }5 P* Y @. v1 b6 V, w9 `9 V/ ~; t5 M3 l3 \6 p! d
hr = m_pDisp->Invoke( ( r J \' r$ y; ~. v- C r requestID,% C) v# ]' Y+ F K
IID_NULL,9 |" R5 C U8 u4 @7 P$ K
LOCALE_SYSTEM_DEFAULT,' P1 C% J& |9 p8 U9 a _4 [
DISPATCH_METHOD, 1 D ]+ J' y9 d5 D9 h &dp2, / S# M: s- m' `- v0 F0 R! [0 J &var, - H* r; j, G% S* E &ei, : L/ ?6 r/ g, K0 v &uiErr); - V' x N. X, U6 E+ S- c2 `3 R# B3 f8 T
SysFreeString(topicStr); 3 A: r9 s2 Z/ u! Y9 W/ F SysFreeString(itemStr); : N% F6 d0 Q" N: z) f请问该程序是获得extend里面的哪个值?& D5 E5 s( O+ P$ c& ~
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????