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 i( i' T' v4 m& W! C \# uName = (WCHAR *) L"Poke"; + S- f- F* X. L1 d 0 @& A; r% ?+ Q5 U8 r
hr = m_pDisp->GetIDsOfNames ( 9 s3 D# X. M/ t: A# F ^ IID_NULL, // reserved 3 |+ t) O) q: @7 W( K$ f &Name, // Array of names to get IDs for , W! D& C; c% H+ O 1, // # of names in the array 0 D3 H1 e6 Z( n3 C LOCALE_SYSTEM_DEFAULT, // System locale; K& c1 g% ~' M( f1 m
&pokeID); // Array of IDs to fill on output; E! @: A) Q$ k* @0 k
# o6 \9 }4 ^7 E' x if (hr), J2 q( w/ O8 A
{ 7 D8 D: ~0 B! S" ] MessageBox ("Get Poke Unsuccessful");. J0 v- s9 q/ z, [5 c
return;/ w8 {# s7 o# O" G9 t
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/**************************传递数据给extend**************************************/ / F3 }5 k& M1 e$ d pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);3 w6 z$ {5 | C% w5 ^- Y
- ]% ^0 n @1 K/ _6 R; z( h$ ]: t valueStr = SysAllocString((WCHAR *) L"1232"); ' q8 N% p2 H+ Z9 \ VariantInit(&pokeVariant[0]); . w2 M% d4 Q0 K5 c2 }1 `! x* X pokeVariant[0].vt = VT_BSTR; 4 `. ]/ O, N: |- X- C" Q/ ? pokeVariant[0].bstrVal = valueStr; 1 t, U0 f% v) o$ D3 z! K" W& ^3 D/ y. f: o
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : f1 z7 {8 v6 x" [" n+ M VariantInit(&pokeVariant[1]); ( J" ?6 d, |. \- i* ?: N1 k* E- l pokeVariant[1].vt = VT_BSTR;: s' l4 Z9 x5 t! G8 U( z' c
pokeVariant[1].bstrVal = itemStr;- {$ S \2 ?3 w: k2 Y0 k
/ h* S3 q3 k6 \9 l% N topicStr = SysAllocString((WCHAR *) L"system"); % Q0 B% c; P( ], u VariantInit(&pokeVariant[2]); 1 S9 K7 x5 e) }: k$ I6 Z
pokeVariant[2].vt = VT_BSTR; 1 H! o4 T% `4 x8 q4 A pokeVariant[2].bstrVal = topicStr; ' l( k) Q. b$ l2 O5 `! }( x. I, k2 D4 [- J, ~" C4 ^
// Set the DISPPARAMS structure that holds the variant.2 S! x5 p* Z v
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dp.rgvarg = pokeVariant;7 F' `# i8 M* m5 ^/ F2 F
dp.cArgs = 3; 4 l" u, [' X: e/ q: u dp.rgdispidNamedArgs = NULL; ( ~1 L& I2 i' B+ A dp.cNamedArgs = 0;+ q5 r* |4 s2 p5 N/ e2 Y; n: o U% i
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// Call IDispatch::Invoke() * ], C( T3 o) R - g0 X2 }4 y9 a0 t4 E1 {( ] hr = m_pDisp->Invoke(" ?; T: g5 I! a! y( Y" y# r4 l2 F
pokeID, - K7 l& C7 M8 q3 ?$ R+ z% I7 z IID_NULL,& O4 t& z) }* g# q3 ?
LOCALE_SYSTEM_DEFAULT,/ p$ m I( ^5 A( t
DISPATCH_METHOD, 9 M$ E9 `7 w4 [8 z; E" t$ l &dp,! `3 ~. A V8 _5 |. |2 E* [
NULL,; l0 m4 R! l, l5 B' T7 G. ~$ a
&ei, 4 X) i: e, `/ o; A- Q% { &uiErr); 2 P( q) M4 \* k% K) H T1 }8 D( y" @4 J5 M( K% v9 A0 L4 s
SysFreeString(topicStr); 4 Q1 ]! D5 { v6 x k SysFreeString(itemStr);# G* M7 L9 O1 u; Q* Z: H( I
SysFreeString(valueStr);) j+ V1 K* G. o8 h x* {
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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???0 ?- v1 O/ X5 T ]3 B
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????( `' A+ n; x7 f) k- f/ U
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2.这是request的程序 # }, o5 r2 y* V// Request a value from Extend ( n+ n6 D0 z' }/ o3 e// \' A+ F& T2 K
// Initialize the variant that will hold the BSTR. Set the variant's ( |' j0 G; Z! \9 }// type flag to indicate the fact that this variant holds a BSTR. Place the / l3 F0 f! Y( E; Z2 n8 ?// BSTR into the variant structure. ) g8 z/ F6 H* I2 Q9 F8 y, l8 s' ]2 A3 t6 R. x
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);; P/ v0 @# c+ `# \& G# D
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % h- y9 K: L, X; `5 k5 n" t. p VariantInit(&requestVariant[0]); $ t2 k7 p% V( F! Y requestVariant[0].vt = VT_BSTR;7 [/ ^# O6 K5 Y& { f( ?4 R
requestVariant[0].bstrVal = itemStr; ' V$ x9 H! z2 m: ?1 p. M2 S( o M+ ~' c
topicStr = SysAllocString((WCHAR *) L"system"); 9 x3 U9 P# f2 ~' j4 ] VariantInit(&requestVariant[1]); ; e F" ^, ?- j requestVariant[1].vt = VT_BSTR; " l* a9 i* R0 p' [, O: f! v' I' l requestVariant[1].bstrVal = topicStr; ; X2 ?" q8 c$ M$ X; N% i7 f$ p& E) h) z/ B" o1 M6 o/ s
// Set the DISPPARAMS structure that holds the variant. ; c0 V4 K& P, ?% j ) k# ~" T) I/ g3 T9 ` dp2.rgvarg = requestVariant;/ d: z z9 M8 P5 u
dp2.cArgs = 2;% I" t0 } g& o+ d" l
dp2.rgdispidNamedArgs = NULL; 6 Z; Y3 p5 s. ^; b dp2.cNamedArgs = 0;: L) ?3 }- v- Q. Y9 i9 N3 C
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var.vt = VT_EMPTY;6 V; q% `& [1 a0 u! r3 i: Q
6 G% C, @; g' K1 X9 J// Call IDispatch::Invoke() 6 v- X9 i1 r/ T 9 j0 s% m% }& T. a) ?5 P- ` hr = m_pDisp->Invoke(- r H4 x8 H6 j6 v2 X' |
requestID, 2 F' K* ?3 j4 j9 i* R) N C. N IID_NULL, 0 \ B% n5 E% J# h, P" i LOCALE_SYSTEM_DEFAULT," h, `* n' y2 m% ]/ e% K
DISPATCH_METHOD,# D1 E: a9 }# L# q% d/ e i' D# W+ d
&dp2, ' s: {3 R3 R- l- R' Z &var,( v8 O W- j0 ?; L* C2 D
&ei, ' i5 J% g. i9 @ &uiErr); 7 @( E( a- E) {' H2 h% ~ 2 e3 I9 u& e+ Y+ S" a5 W SysFreeString(topicStr);) _; K9 l, } ^! A- ?
SysFreeString(itemStr); . S7 }- K2 x/ r0 H请问该程序是获得extend里面的哪个值?5 V0 K, s+ ~$ w& }0 v
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????