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:$ q/ B4 }; D4 M# d, ?
Name = (WCHAR *) L"Poke"; 3 _/ y. I2 H, r% V + [+ N* u! X' }+ V
hr = m_pDisp->GetIDsOfNames ( 0 {( h0 P& ^$ F; I( X" _9 X( E IID_NULL, // reserved1 c s. |/ {9 F( z/ a
&Name, // Array of names to get IDs for1 F+ o8 s3 A) w5 z, Z% c2 j! j- e/ D
1, // # of names in the array 7 m( N2 _( d4 {; {6 M7 l* M1 a5 q LOCALE_SYSTEM_DEFAULT, // System locale # {( |% ?. y! z1 T2 B$ H! P9 ?; K+ q &pokeID); // Array of IDs to fill on output 5 [* ~- u! S$ ~( X. B( W " Y5 Y2 H9 `" l0 a# E6 b if (hr) : m5 F8 O- Q. i { + s E7 b$ @7 w$ f! v4 L MessageBox ("Get Poke Unsuccessful");3 V. U+ m3 O5 e, Z; H; {
return; . t4 Z) F1 J7 [/ E) V& p0 w1 V } . L0 b$ M$ Y" j. f3 G* K$ A; T; ^9 g- Y7 s1 z* R& C, `6 {
/**************************传递数据给extend**************************************/$ O+ x/ H4 C' S5 L; R- Z% w
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 [" I( `/ E. t* G+ j. C5 b" b ( k) p. ^0 C9 n3 V+ H valueStr = SysAllocString((WCHAR *) L"1232"); . W& Z! w C7 Z R VariantInit(&pokeVariant[0]); / ~% {5 \ j& o3 E: H pokeVariant[0].vt = VT_BSTR;" x! e! ]8 }% m% \, D
pokeVariant[0].bstrVal = valueStr; % O% i! g0 g2 U/ T' y' D% b( Q& o; Q; i8 M) d- e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# K+ q0 X2 D. g- d R1 u7 F
VariantInit(&pokeVariant[1]); & ]6 g7 x# D2 t0 g c' F pokeVariant[1].vt = VT_BSTR;- v4 x' I) p* v6 L& s! |
pokeVariant[1].bstrVal = itemStr; 3 J" `% Z) S% E; e* M. i* E. O) x2 `, o$ x. O" g g* E6 l
topicStr = SysAllocString((WCHAR *) L"system");4 T' z5 C, K' V' k4 r
VariantInit(&pokeVariant[2]); 2 K/ i/ s7 V! J
pokeVariant[2].vt = VT_BSTR;7 |! `) U- m0 w% x- {/ Z5 H' @5 M9 z
pokeVariant[2].bstrVal = topicStr; / J* t/ y$ ], M' J' j : l7 D, X# G! n: u, O- ]+ [6 b// Set the DISPPARAMS structure that holds the variant. e' W( d9 B# j, y* a, V
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dp.rgvarg = pokeVariant;6 T$ ?4 r5 j" Y( m
dp.cArgs = 3;* p/ S4 F( m9 [3 A
dp.rgdispidNamedArgs = NULL;3 D7 ^0 ~+ J/ i; R/ `8 l) L
dp.cNamedArgs = 0;% }% T, ?8 ]7 P, j1 a( j, X
1 i% o- Q. V5 s, f* r$ b
// Call IDispatch::Invoke()( {2 L" ~* E7 U7 k9 H
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hr = m_pDisp->Invoke( ! ^* j& t1 @2 e$ X5 N. _ pokeID,3 |& T9 Q$ K9 S: C
IID_NULL, 6 ]7 P; o- l& R$ g LOCALE_SYSTEM_DEFAULT,4 e, s. V g) }) W9 Z: Q
DISPATCH_METHOD,. I1 X, t# N. H9 q1 N; \; i2 {
&dp,; ] n. z- ]: r4 i: x0 \; R2 @
NULL, : [: S. `5 U+ L" t &ei, 3 |1 H% x$ H! v &uiErr);6 }1 Y. `- z& q) t- a2 Q/ r
8 T* t% T& a1 Q
SysFreeString(topicStr);4 f4 z6 p a3 y
SysFreeString(itemStr); 5 F$ |' n& }% B2 S: L SysFreeString(valueStr); ( [. J. R7 q, g! N: I$ z& s0 G/ ~ , p) e6 j0 [# ^8 N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???3 \9 u' {2 \ k9 ~- k! T& 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????) b6 Y5 |8 \2 _. ?+ R' Q
+ [2 P) {6 u% p' l/ P 8 R& f4 q! R5 [3 u$ H0 I2.这是request的程序9 o" F2 s) b+ ~6 ^& f! B) @& q
// Request a value from Extend! g% X) D/ d/ t0 _. \
//) P. L% }- L* V0 v$ g/ H5 U8 `
// Initialize the variant that will hold the BSTR. Set the variant's# ^& H8 T+ B- Z7 I9 Q! M" Q3 n
// type flag to indicate the fact that this variant holds a BSTR. Place the " z) D4 D* J# P+ ]( G// BSTR into the variant structure. ' |- f3 f) U$ R+ ^1 b! R: c% l# G# |! \; J
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! y) F5 S8 J& f4 X+ F7 P5 ^0 ~( a
8 k9 N* A: L! o I- I# U* x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 f' S0 w& P: R( J* Y
VariantInit(&requestVariant[0]); 3 Y& }$ S' Q4 q! K; y
requestVariant[0].vt = VT_BSTR;" B' z- u# U! W" p' H( K8 C
requestVariant[0].bstrVal = itemStr;& @: ~5 \8 C/ o4 p) o6 q