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. o9 E7 ?1 D! ?$ l2 ]# ? u1 c7 QName = (WCHAR *) L"Poke"; $ E% g8 p; ]4 R' g7 @ ( i- @9 Y* k$ z$ f
hr = m_pDisp->GetIDsOfNames (7 Q9 c7 X3 c! m, P
IID_NULL, // reserved - t; b8 @7 ^$ l. H0 P8 n5 m &Name, // Array of names to get IDs for % Y. o$ D2 H7 _! t 1, // # of names in the array3 h# n0 _# s3 G
LOCALE_SYSTEM_DEFAULT, // System locale 0 J( ^& w K7 ]: H, c2 Y &pokeID); // Array of IDs to fill on output) g$ h" R; K$ L- R
% h' u/ G* A" X E& u# `8 [1 `! o/ [ if (hr) + }- q6 N- }) r2 q {' Q6 B% J- W7 ~+ O; C$ j8 |6 }$ f( \
MessageBox ("Get Poke Unsuccessful");* ^ E; W6 B1 i* ^5 {7 s& u8 N
return; 1 ^7 e6 E% O3 R; W, d, g }4 c M) l/ V, P# R* b* f' f
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/**************************传递数据给extend**************************************/3 p* [4 P; m( Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); }5 T$ p* q. p- B% }0 T1 k( y2 ` 5 k$ H4 P, A9 }# y
valueStr = SysAllocString((WCHAR *) L"1232"); D ]- U( e8 @0 C: P
VariantInit(&pokeVariant[0]); ) H2 I) T7 Q1 a& s$ Y- W1 J+ D7 ?* R pokeVariant[0].vt = VT_BSTR; - V7 a. h2 |8 P pokeVariant[0].bstrVal = valueStr;# D8 v: n$ [4 f, B8 q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 ]0 Q0 [5 [) A: e
VariantInit(&pokeVariant[1]); + _) k8 E6 S3 d$ ?9 j
pokeVariant[1].vt = VT_BSTR; 2 X8 r+ y, S" U2 V5 `. N% f pokeVariant[1].bstrVal = itemStr; 6 w2 ?; W6 R* a! Z1 N; r0 \% l 9 D. n' n! M% l0 P! \3 Q% S, r" U; _ topicStr = SysAllocString((WCHAR *) L"system"); : l/ S/ f0 o7 F% x VariantInit(&pokeVariant[2]); 5 G" y& D( t1 b
pokeVariant[2].vt = VT_BSTR; 9 o$ M; a+ q, d4 z3 q& X pokeVariant[2].bstrVal = topicStr; 2 V- F) O1 q- i% p 1 T* T5 \" x& v; `" h# ^- _// Set the DISPPARAMS structure that holds the variant. 1 ?* h' q8 n8 K; d% E # {% T' e! t% N+ \3 ]' M6 q" d dp.rgvarg = pokeVariant;7 W5 l' j+ u& Q' u4 c$ d
dp.cArgs = 3;5 G0 F. U3 ?" B/ k( V& d+ \# }, |& J6 |
dp.rgdispidNamedArgs = NULL; , k+ _9 t! n0 q" T; d8 [ dp.cNamedArgs = 0;3 K3 n" ^ U1 `$ l1 `7 e; M
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// Call IDispatch::Invoke() " i6 E5 K& M* S Q " f* n" Q' E9 s hr = m_pDisp->Invoke(3 t) h3 p) P3 i( c/ k8 w
pokeID, % z( H0 G$ D5 L: l IID_NULL, 4 s& L0 x+ ~$ ~; P" K! d8 S+ N2 Q# t LOCALE_SYSTEM_DEFAULT, / a0 m! g! R" A6 f DISPATCH_METHOD, ( Z: U& N5 a0 O3 f8 `. s$ T &dp,) r* s* o; u6 m% K! c8 H
NULL,% c# E1 K- e6 B: V; \6 p* W$ `4 X
&ei,, I E8 b4 f# L" ^% |. F
&uiErr); . O% n' C/ W/ h" F7 q. `* h( V6 O; \( I* S' Z$ K! }* U% ~
SysFreeString(topicStr);5 f% H0 X% @3 R$ ?) P0 h% u
SysFreeString(itemStr); $ k0 U3 E, p. f$ ` SysFreeString(valueStr);# l/ J: L$ Q& I9 h7 {( ^
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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???. ^4 y! Z; S7 }+ x1 [- v! S
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????5 d/ d: X% C9 p! `
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2.这是request的程序 * v' M% r" ]( d- R. x- l// Request a value from Extend6 Y* U# E- a' K
//* e* }/ u$ a Q/ H- U% m
// Initialize the variant that will hold the BSTR. Set the variant's 1 I' s( T5 l) b% C// type flag to indicate the fact that this variant holds a BSTR. Place the# d G) w: z9 C! x! M- X/ P
// BSTR into the variant structure.2 Y7 L3 j& @) ^" D
4 {, J3 A4 i) `$ t! w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , n6 F* R7 C! h! P% b, H - q0 z$ _: v; N: K; Z3 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); F& n1 {/ C/ J5 J9 c9 f' `6 ]
VariantInit(&requestVariant[0]); 7 I7 W4 E2 d6 B* z1 R
requestVariant[0].vt = VT_BSTR; D. J- Q' z6 `9 ^ requestVariant[0].bstrVal = itemStr;5 _, O' e; ?# s1 h% R
6 w; J) V# Y# P( M c5 F& c2 @0 P! t T topicStr = SysAllocString((WCHAR *) L"system");* w* q6 F, X$ K4 w& d% H0 w
VariantInit(&requestVariant[1]); $ x' n* f$ U6 Q' M
requestVariant[1].vt = VT_BSTR;/ e9 a$ |5 a1 F( k4 U7 }/ x: B
requestVariant[1].bstrVal = topicStr; . U- H) \& t/ P) }: f & D/ p7 q2 A" d- V* B% ~) j// Set the DISPPARAMS structure that holds the variant. . g$ [/ Q. O9 K; b+ b+ P: c( V: ~8 ]6 E* d6 @/ M$ q0 Q
dp2.rgvarg = requestVariant; ' j' C. D3 o q. w dp2.cArgs = 2;, g! ^6 D: T$ X, S5 d- \: ?) v
dp2.rgdispidNamedArgs = NULL;( _- n( L L, f
dp2.cNamedArgs = 0;3 x1 i' H9 M6 g7 _4 F
c# a/ g% |4 d* l1 N var.vt = VT_EMPTY;7 L$ }* x" [2 j8 Q/ `/ D
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// Call IDispatch::Invoke() ( n- A7 ?' L7 C7 a% ~" }. P1 z- I% N, r( h
hr = m_pDisp->Invoke( |% Y% U# r: G) e; B) G
requestID, ( W) j" d7 @# n2 _ IID_NULL,3 O( c! t7 h; J$ ]4 f9 k
LOCALE_SYSTEM_DEFAULT, s t6 a& G( s1 ?+ N; r" {' W. E4 }
DISPATCH_METHOD, / o/ R0 C( |3 _( {4 L* F& ~ &dp2, 3 J& B0 M9 J& z &var, ' ]) Q/ W7 P' {0 }+ O4 O &ei,: }& ]$ [' _+ m0 f
&uiErr);4 F) f) Y |4 B7 C
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SysFreeString(topicStr); 5 A6 T4 {* S$ P8 V0 k1 `1 J7 W SysFreeString(itemStr); $ j2 H! b0 N0 j1 F6 Q+ X请问该程序是获得extend里面的哪个值? ; \, T B5 Z$ R. h% q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????