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:4 W, ?2 n: B- C# H: d
Name = (WCHAR *) L"Poke";, P- I H9 N% \ g
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hr = m_pDisp->GetIDsOfNames ( & K, u+ t3 S1 ?- a$ R# { IID_NULL, // reserved - j9 A% R. ?: a" m% q6 n% a &Name, // Array of names to get IDs for. _. H: x& X) F0 O7 o; w \& }( h8 }
1, // # of names in the array& \7 W& T5 S! I/ E/ C# _# I/ P
LOCALE_SYSTEM_DEFAULT, // System locale- a" T" B: ^: c% Y7 J7 M0 B ?
&pokeID); // Array of IDs to fill on output; n/ ^$ i) t4 w8 e0 a1 ~5 s
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if (hr) 5 _% ? c1 }, J% v) s- @ { 1 b* J i! n: ^# ^; t; n- M MessageBox ("Get Poke Unsuccessful"); ) A2 M& i& z9 F8 ?# G( E2 Z return; ! k% c1 _: k, J } & I) Q& n* }1 V$ S# _ # f. C6 Y4 b! m5 g- s$ R! a/**************************传递数据给extend**************************************/ 8 P) f1 a4 {( N6 O& M9 l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: ^% p' D' J( o& A
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valueStr = SysAllocString((WCHAR *) L"1232"); 8 E8 E: l+ }- ]1 I) |+ j. `" f VariantInit(&pokeVariant[0]); / Y1 W, W4 F6 H( B9 _8 J4 ^& `
pokeVariant[0].vt = VT_BSTR; , c9 D3 y; |. t1 Y6 d4 G6 v pokeVariant[0].bstrVal = valueStr; $ A$ i+ R4 o/ X& _- |; k) b2 g8 |) `( {6 k. E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 g/ E1 @- E2 y1 e' R/ d2 R7 a
VariantInit(&pokeVariant[1]); - \* |' C$ i5 k G- ~; E
pokeVariant[1].vt = VT_BSTR; # J/ s& e$ _& g2 ~ pokeVariant[1].bstrVal = itemStr;! G' x: Y; s3 j) G' U: S6 d( U% S
W* k) g( n8 ?+ a' k% y9 U. v topicStr = SysAllocString((WCHAR *) L"system"); ' b' Q# F( e+ D* |8 L3 i VariantInit(&pokeVariant[2]); t9 O- ]& X) ^7 U8 B/ T
pokeVariant[2].vt = VT_BSTR;0 N+ w, b3 O( {+ `% C6 J5 }
pokeVariant[2].bstrVal = topicStr; - E9 R( H/ ]+ v, V5 N % l$ r G1 J5 y4 n/ e/ x' a// Set the DISPPARAMS structure that holds the variant. 6 B, M F) w5 H% \% |6 b- t; V: }8 ?
dp.rgvarg = pokeVariant;+ _( I/ f, y& a2 r) n. `( `
dp.cArgs = 3; + k$ `' j- \5 h+ ]' j9 Q, f dp.rgdispidNamedArgs = NULL; ; p5 [ J% D3 [' U/ |+ j2 U# n dp.cNamedArgs = 0;) m: b( q/ g+ r y# U1 S7 P3 H. I% t
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// Call IDispatch::Invoke()( M3 h7 ]% R3 q. Q
8 E! y4 s1 l& I, H5 R hr = m_pDisp->Invoke(. R% J+ P2 I$ P# |
pokeID,( @$ t" P+ K9 t
IID_NULL, ! _7 L( {2 t- T+ Q2 e" [ LOCALE_SYSTEM_DEFAULT,$ K6 p# z$ f9 E i% _5 Z& S4 S7 p
DISPATCH_METHOD, 5 p6 _/ P! g9 M8 v5 C &dp,7 h4 }2 ?& \9 `2 d0 {
NULL, . E) `3 b4 }. l# u: b# L' i &ei, + D) |; J) i' y# \) r. |0 I &uiErr); ' m& s5 G/ J# v8 F" S+ u! n: ]0 i |6 ]/ w0 M
SysFreeString(topicStr);1 `7 k% i' w K
SysFreeString(itemStr); 5 w6 D) O/ d9 ^* b6 O SysFreeString(valueStr);3 N: M# N$ X$ X
" }: S/ r. G) ^" _; s" r3 c+ w$ ]) 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??? # M9 s0 ]. c8 N% q* I0 q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???? % m2 S. r* ?- x9 y( s m$ c; g$ \* L) w `. u
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2.这是request的程序' P7 v0 {3 e. f9 W6 E
// Request a value from Extend : [9 r. H1 ?/ [. J/ L# ]//9 g# C [0 B+ u) F: H, O
// Initialize the variant that will hold the BSTR. Set the variant's ' ]$ ^ O- i) F3 U) c// type flag to indicate the fact that this variant holds a BSTR. Place the # k, o Y; R8 r% i$ i6 f// BSTR into the variant structure.# k) }% o' y ]" [/ w