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:2 v$ N/ J A0 D R/ O; G( D. l
Name = (WCHAR *) L"Poke";) y0 R% s! n0 h% s9 V0 R" o
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hr = m_pDisp->GetIDsOfNames ( ) I4 m2 T/ v8 T5 q. q+ n0 d IID_NULL, // reserved4 q: t, x9 {7 D" z. [6 z
&Name, // Array of names to get IDs for/ z% `( M3 O- u5 a% U% v8 G' m' @
1, // # of names in the array' x ?$ V5 K* Q0 K( l; q
LOCALE_SYSTEM_DEFAULT, // System locale! C" c; Z" K9 ^/ z! \
&pokeID); // Array of IDs to fill on output $ W! m7 J0 L8 N( r$ d . t4 \0 W, h! B( |8 C if (hr)( _9 m% g# L ?. H+ c
{ . a1 L2 z8 Q/ F5 B0 Y* ?4 W' i; V MessageBox ("Get Poke Unsuccessful"); + U; E' Z; n8 I* c3 }4 T return;$ i* k* k" e$ q1 K6 b6 `6 f: @' `
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% q) i6 h: Z5 C# q$ F* n3 u/**************************传递数据给extend**************************************/ & F2 g" Z1 U L8 S pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);, S( m1 r& g: m6 [' K
/ d7 Y; K3 D9 }5 Q2 G* \ valueStr = SysAllocString((WCHAR *) L"1232");) _) @! |" ?, W/ o/ w' U7 U
VariantInit(&pokeVariant[0]); , T6 ? B. d: w: d; Y
pokeVariant[0].vt = VT_BSTR;( b( q0 ~4 c2 K0 l7 k
pokeVariant[0].bstrVal = valueStr; 4 T5 a3 h# ]7 d* }$ I0 ^; R l% f0 o' H g ]3 z& P5 T
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 5 d8 y( P# \: q7 A- o! N' | VariantInit(&pokeVariant[1]); ) O9 L, N- h0 O) F8 b pokeVariant[1].vt = VT_BSTR; Z' G! _. B' j; d pokeVariant[1].bstrVal = itemStr;2 t5 l t" C$ U. H- w- T! m
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topicStr = SysAllocString((WCHAR *) L"system"); # q7 ^9 E( n4 y6 m- e8 G6 e VariantInit(&pokeVariant[2]); " K/ J4 A/ ^. r2 m: ]& X8 x
pokeVariant[2].vt = VT_BSTR; : E$ h% G3 q* U: Q1 B* J$ O pokeVariant[2].bstrVal = topicStr;# c* l3 Y, Q- d: D: n6 _
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// Set the DISPPARAMS structure that holds the variant.3 a* F5 N6 M6 {5 b2 d' Y4 y; T! e8 v
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dp.rgvarg = pokeVariant; 2 T' ~/ c& c/ o: U8 k' Y dp.cArgs = 3; # V8 z, q! R: Y3 y, V+ h p dp.rgdispidNamedArgs = NULL;2 q) s+ r- b2 X% |) P/ Y
dp.cNamedArgs = 0; " g0 g! U4 ~1 F5 Q; _& ]7 Y8 [- T# I# c6 p# C
// Call IDispatch::Invoke() $ a; @* D" K2 _ R! E# j. I6 G2 H; L
hr = m_pDisp->Invoke( 8 [6 K8 P6 t3 V f) [; P pokeID, " r6 N; v S; o% \% H( `! `* N IID_NULL,& n# v7 a$ e7 \# m3 V% z
LOCALE_SYSTEM_DEFAULT,, j E9 O) L$ i9 k7 C; _
DISPATCH_METHOD,7 D% N6 T* B: E) c3 v4 I
&dp, 8 F9 u+ S+ O' Q! K, }1 W t NULL, 1 c1 U# j' [- n- W, q" Q &ei, ; H4 _7 ~5 W* k+ _4 u7 [ e6 i &uiErr); & H. T& q8 e& ] , C: K( n4 F1 i: q7 I+ Y# w+ \4 Z SysFreeString(topicStr); D: C: h- T" ^# D8 R
SysFreeString(itemStr); 5 m E" K) H9 J c1 G SysFreeString(valueStr);6 H- k" A: M+ Z% ]- Q
4 o! H8 K# v$ T7 }' J: L1 z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???& h% r# U$ c# F) E1 u
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???? ' z4 h6 s( F$ e( t& r" }' R 6 C! m" }3 R% c4 J' p1 ]2 G0 M( k. H- N% _/ |" g* c: c* b: i
2.这是request的程序 ' o$ A9 d6 T3 Z( k- W' j( r/ n" T// Request a value from Extend ) ]9 h+ }; V4 E& G+ \; D& B2 O- B//% ~$ x6 p% D3 `1 D' h; h
// Initialize the variant that will hold the BSTR. Set the variant's4 b0 H( x3 b( w
// type flag to indicate the fact that this variant holds a BSTR. Place the, y. d* ]6 R7 R. c1 k( }
// BSTR into the variant structure.' T e" X4 `) U" p
+ R0 t5 e* o: j. \6 s1 Y2 z, e5 r2 \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);9 n' m$ R S* `1 E" p