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: 1 f6 o3 v& ]/ NName = (WCHAR *) L"Poke";* V v5 K' k% a1 V1 y8 E6 G
9 v0 j3 B" X5 c5 F; d1 Z; D- s hr = m_pDisp->GetIDsOfNames (/ |* w2 e2 Q. }; l. I7 n6 ?
IID_NULL, // reserved1 J6 ~; o, z4 R: c% L: R" q
&Name, // Array of names to get IDs for 5 t9 d& ^: l0 n' h8 t8 K 1, // # of names in the array5 G- S& a6 p) S9 R; z$ s
LOCALE_SYSTEM_DEFAULT, // System locale5 F2 _; d4 E) @) ?
&pokeID); // Array of IDs to fill on output, I! J1 D! w1 P
& e u' ^8 ]6 o0 ?; q% E5 g3 }$ k5 j( S if (hr) 0 n- o7 w3 a o: ~ M' y, c& @ {5 \3 \( Z0 l. m- @9 T
MessageBox ("Get Poke Unsuccessful"); / u0 _/ N* b" [. K return;, S ]/ L0 q4 v; B7 r( e! H$ @' C
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/**************************传递数据给extend**************************************/, h1 o) C- }+ W
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : E0 Z6 R' |6 [: ] 6 j( [( E6 C% `! T9 p, ] valueStr = SysAllocString((WCHAR *) L"1232"); ! n7 c, O: u: [! R VariantInit(&pokeVariant[0]); + t0 k5 N [2 u) u! W) ~
pokeVariant[0].vt = VT_BSTR; - {, k2 O: G; n1 l9 s pokeVariant[0].bstrVal = valueStr; ; z- A! y1 I a2 b; j5 [8 R 3 t/ a& A. t$ r: D, a9 B! l8 H5 a itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: \4 V! n* T" u. J5 l; K1 p
VariantInit(&pokeVariant[1]); & C% _8 f+ b& c
pokeVariant[1].vt = VT_BSTR; 8 }: e7 L6 M+ e: [ J) j7 c% | pokeVariant[1].bstrVal = itemStr;' p2 `' t3 M) g: \& D1 S ^; a
& W, N/ O) X7 F4 E0 T; }; O/ A topicStr = SysAllocString((WCHAR *) L"system");9 J0 N8 R2 E) h. B$ X7 h
VariantInit(&pokeVariant[2]); 7 [, F9 P& n0 @ pokeVariant[2].vt = VT_BSTR; 3 x9 T. c$ Z+ r7 [: c+ E) t Q5 s pokeVariant[2].bstrVal = topicStr; & a) I: u4 V# V; w9 t# c* ]0 R! |. k" m8 W: n& c
// Set the DISPPARAMS structure that holds the variant. . `5 S h# Y8 S: A8 p * \: e; u4 N3 P0 t dp.rgvarg = pokeVariant;7 n- Y$ o* k& r! P+ u
dp.cArgs = 3;9 d4 N3 [" ?( h7 g$ Z6 ]7 K
dp.rgdispidNamedArgs = NULL;9 U# i, B! C, D2 k5 M) c
dp.cNamedArgs = 0; # o! V8 u t* s; O$ W& P! y 4 v! q, j! M: }5 D3 P, J// Call IDispatch::Invoke()2 N" a! V: e* Y" \
m5 i) v# A; c( n$ S hr = m_pDisp->Invoke( 2 t' `# ^4 v: R9 R# K pokeID, 5 G. H, n+ b0 V8 p' \1 b IID_NULL, ) j9 E$ e% O( k LOCALE_SYSTEM_DEFAULT," u# ]3 E4 l$ G# \9 s8 e0 O) z
DISPATCH_METHOD, 1 J f* L9 D# ~ &dp, ; | V5 M7 |% y9 n0 e2 l NULL, ! Y8 E! |- O5 f1 E+ [ &ei, ' [! o: S& {2 p# o M$ c# i &uiErr);* ?* k; `3 U" g$ k1 {6 B, {0 g
- @. f8 t8 ~, l% p SysFreeString(topicStr);7 c+ ?1 j# X% ~ F5 X4 O) q" V% R
SysFreeString(itemStr);' a( A* @0 l! }( d1 I
SysFreeString(valueStr);0 K4 ]' O9 s! n$ B7 A
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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??? & O h5 ?) n' i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???? . R" d# p& Q- U5 N% D% H; b. s
$ P( B# A9 S: S* L2.这是request的程序! |5 d b% ?( B! h& Q4 e
// Request a value from Extend ( k1 D/ m' k( y5 p/ F9 b//5 ]5 R' t! J0 e$ K+ H8 e
// Initialize the variant that will hold the BSTR. Set the variant's O% G5 m+ c. p
// type flag to indicate the fact that this variant holds a BSTR. Place the9 S& D# P5 i5 f1 R
// BSTR into the variant structure.1 @" l3 n: c$ L
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ! Z6 p; T* f# k- [2 X0 @6 c 9 j* K( i0 z# B9 J8 Y7 t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); N. N! S9 j! d% x1 _8 h& t2 | VariantInit(&requestVariant[0]); \- g1 r: M3 T requestVariant[0].vt = VT_BSTR; f6 J& k, Y1 W5 Z0 S
requestVariant[0].bstrVal = itemStr; $ D1 z5 J# v, h8 X ' `) ]( E0 l( a" Q- T& [ topicStr = SysAllocString((WCHAR *) L"system"); ) [ }( N6 {5 ~! b* m! R VariantInit(&requestVariant[1]); ; o, R& _, d3 v! B; W. ^5 Q1 P8 I
requestVariant[1].vt = VT_BSTR;, Z4 i/ r$ |1 n: l5 A
requestVariant[1].bstrVal = topicStr;- a( R' W: `) _6 U' ]3 T
8 d+ t" H2 k( _( z// Set the DISPPARAMS structure that holds the variant. # L( |9 ^1 e }9 B) e- m% s- t! E: F0 S; p$ h0 H& n; Y8 _# n# n! b
dp2.rgvarg = requestVariant; }+ V7 {; A( r- i
dp2.cArgs = 2;8 q9 N* G) R5 d# n5 R# g# C
dp2.rgdispidNamedArgs = NULL; 3 L7 E. M& @% p: P dp2.cNamedArgs = 0; 6 K$ {5 x$ O8 y ( h9 q5 f3 D5 _' G var.vt = VT_EMPTY;! S0 T# J4 g! Q$ c5 W8 d
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// Call IDispatch::Invoke()) U9 i, o( c O% n' x3 V2 \
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hr = m_pDisp->Invoke( 6 i, y6 F/ o( k/ c requestID,1 j. [& |. n& f
IID_NULL," u: d% R5 H; ?' I+ B8 y
LOCALE_SYSTEM_DEFAULT," g* U1 f* o# B9 q3 M1 _
DISPATCH_METHOD, , k0 {" w) E$ a) b- e( Z. ?7 M. W &dp2, 0 z: H/ r# F' t, w" y# }0 e &var, ; G I' e" |& `2 j* `0 T( d4 i5 r4 {3 S &ei,$ Z5 L8 ~% o* \: z* G [$ \5 ?9 O
&uiErr); ; x3 r, }4 c0 S9 u. z3 X# p- h) d9 h1 ]) g2 ^9 K
SysFreeString(topicStr); ; d8 f$ Y, s9 F7 p$ G; [ SysFreeString(itemStr); 3 b" B' A' w0 g; Q请问该程序是获得extend里面的哪个值? 0 Y" ~8 g! X* c" ^3 `* |, j1 k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????