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:' a# \/ n* c' j6 d
Name = (WCHAR *) L"Poke";4 C! b- `9 ?% }2 { S8 m9 Z1 r
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hr = m_pDisp->GetIDsOfNames () H+ j) P- u1 z5 l7 ]
IID_NULL, // reserved/ q6 U. P( C9 J6 a& u2 {7 F% [
&Name, // Array of names to get IDs for( x8 }! i6 Q4 ~& t% g4 q
1, // # of names in the array # \; D# ^" v5 Q: |5 p3 {, I LOCALE_SYSTEM_DEFAULT, // System locale+ p1 D4 n% o+ r
&pokeID); // Array of IDs to fill on output 3 I5 ]0 Q& r' v4 Q : g/ Q1 A) ?0 i1 j6 p
if (hr), F% o' X4 n' @, n
{- U8 D0 U2 d7 Z( _' s2 {
MessageBox ("Get Poke Unsuccessful"); . x B0 c% i0 E9 x% F6 Y2 v+ r" Q return;! |( K9 n( R5 w/ o. a7 X" a/ Z: {
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/**************************传递数据给extend**************************************/ & V+ ]- _! c( @6 U pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : ]! W5 x8 V O4 @+ E $ y) B* z0 d2 f/ w
valueStr = SysAllocString((WCHAR *) L"1232");5 j; O$ E1 Y5 v# a; b' F
VariantInit(&pokeVariant[0]); : Q: w3 j0 x- b& g2 G* P: G
pokeVariant[0].vt = VT_BSTR;' f C( d8 Y" _5 F* W. w
pokeVariant[0].bstrVal = valueStr; 8 W! d! ?) i0 G* W- x- f6 Q# m) m2 q4 q! D4 {" k( o. h, l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . L& R$ C2 W% h% s* X VariantInit(&pokeVariant[1]); - k; F& Y- U$ k8 ]7 U. N pokeVariant[1].vt = VT_BSTR; 9 y% Z$ {5 P- O1 b9 e @ pokeVariant[1].bstrVal = itemStr; - G8 x. {' o' ]) Q Z * w0 N( Y6 T+ B topicStr = SysAllocString((WCHAR *) L"system"); " f! T3 e7 l3 |+ ]) `* h2 i VariantInit(&pokeVariant[2]); 5 q# M+ W% F0 l+ @% j
pokeVariant[2].vt = VT_BSTR;" `6 o) i) D& @
pokeVariant[2].bstrVal = topicStr; 7 s1 p4 ^- P% [8 |7 P& j8 p& B& I' ~
// Set the DISPPARAMS structure that holds the variant.& `5 _& _! F% l
$ o$ B7 [7 Z9 P6 y dp.rgvarg = pokeVariant;. P ], j7 s: Z1 m9 _) {
dp.cArgs = 3;# x' K, i% s- ~# R- o: u3 H0 S, L0 X
dp.rgdispidNamedArgs = NULL;# s& h8 y, b8 E, ]4 ?% [
dp.cNamedArgs = 0; 6 q3 h8 x' h. T; H% V % v' D5 s* ?! g, s// Call IDispatch::Invoke()3 u. Y$ \( {. E, y
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hr = m_pDisp->Invoke( , k/ k$ C7 O: q, } i: ]6 j2 F8 z8 z pokeID, % j( E( z0 Z4 Q- V' }: }* @' Z% R IID_NULL, 5 K2 [7 W A8 } f8 L& m LOCALE_SYSTEM_DEFAULT, : B0 g% U i) R* O) Y DISPATCH_METHOD,, Q( |6 Z8 i" |) U9 z9 M, V) n4 v
&dp,+ r2 T. b4 @& K5 D4 o0 D
NULL,; H9 `8 `0 ]* D- z& _
&ei,$ N2 Q) v2 f9 z8 M! a0 p% E* ^
&uiErr);8 F c. |/ U1 v/ g1 V8 G+ y; i
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SysFreeString(topicStr);3 {# m* W B: ~! @0 g
SysFreeString(itemStr);6 @' J4 I/ B. O# x* N: a; b
SysFreeString(valueStr);0 W6 x! P( a5 ~, v4 N* I5 _
* }: ~+ t' ^1 a0 k: ^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???6 |( q; B' a0 q/ P' F0 p
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???? ! d% h& T/ z9 I7 o; H# u Y2 {( r% E( y' Q
1 p/ i$ O/ Y0 p4 V4 m& n1 Q0 w2.这是request的程序 ) V( K& ~! n8 k( u+ d" C" y// Request a value from Extend9 X7 f* [: ?. b2 p2 K% v% W7 r$ f2 S
// 7 ?. [0 C5 i. k7 f// Initialize the variant that will hold the BSTR. Set the variant's: _5 N0 O: P9 ?
// type flag to indicate the fact that this variant holds a BSTR. Place the 3 G/ Z( n, C: G2 D// BSTR into the variant structure. 7 l% y8 [) U: P0 C% E; c7 Y. s- d6 {7 S% |0 Y+ V" `! W1 x9 E
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);7 s* B4 J5 Z# L; j
3 @7 j# L" \8 ~' |/ \7 [, L itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 l6 F2 J) ]/ j4 c6 j1 H1 f* O L VariantInit(&requestVariant[0]); 6 D) v9 M3 W- C2 {0 J. t
requestVariant[0].vt = VT_BSTR; % F8 u5 A6 }: f) H% O4 d$ R0 L a requestVariant[0].bstrVal = itemStr; , K& V6 W: H; [+ d) G0 G . ?9 y1 e: G' v. o) G% k topicStr = SysAllocString((WCHAR *) L"system");; M) H, T) j' G0 p
VariantInit(&requestVariant[1]); ) ~8 B6 R4 s0 C/ h! u% m
requestVariant[1].vt = VT_BSTR;) _ l5 A/ t/ r. G
requestVariant[1].bstrVal = topicStr;, u* u) K& n1 z- r2 O5 N) c
9 m- t4 T8 I$ ^/ }: j. R( x( `// Set the DISPPARAMS structure that holds the variant.+ N# ~; F0 j9 C3 O
! K1 s# o9 V/ c3 t; W, } dp2.rgvarg = requestVariant;8 r! l, D. n+ g* C) [* ?
dp2.cArgs = 2;$ F" ?1 p- I$ P4 |5 H3 q5 l# s/ B
dp2.rgdispidNamedArgs = NULL; 3 ?* Y( U4 n6 [6 a/ P dp2.cNamedArgs = 0;, ?+ D V7 w+ q( Y) \. f6 d