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:) D* _) c: y" @( R! O/ D
Name = (WCHAR *) L"Poke"; 5 J, y. _" @) l& O }1 v. k' V) k% E v( l+ _' p# V; F! R hr = m_pDisp->GetIDsOfNames ( 4 ~; E/ P: p+ e6 v% M$ j IID_NULL, // reserved# c& m) t( J/ C1 ]
&Name, // Array of names to get IDs for % i( x7 a( l V' w. n# `, l 1, // # of names in the array 5 t+ B- [$ `) @8 t2 s7 v9 y/ S LOCALE_SYSTEM_DEFAULT, // System locale- o& F0 P* d8 ]) T; t4 L
&pokeID); // Array of IDs to fill on output6 _4 x8 _' o- M5 E; K) G) j
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if (hr)1 g' N/ K7 |5 I$ h9 @8 _
{ 4 O" M, V; Z) o. r MessageBox ("Get Poke Unsuccessful"); 2 f5 O: ?. ?% R1 R; s return;. q( p( i9 D' \" k1 v D% R
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/**************************传递数据给extend**************************************/ - P6 D4 h+ K( K& ` pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : o- u; d. T: d1 F0 p2 l # `" R: R G0 j+ Q, Q9 f valueStr = SysAllocString((WCHAR *) L"1232"); 8 u- g: Y2 x( A6 s VariantInit(&pokeVariant[0]); 3 J0 b) H4 g& Z$ r4 k( ^ pokeVariant[0].vt = VT_BSTR;. y" c, P8 |) d9 y1 V# ]& U
pokeVariant[0].bstrVal = valueStr; : x9 f0 Z' X& i# o& y: K; C( @9 K9 Y) y5 V& p/ L! P+ R' A
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 K: Z6 x% f% |9 q- |9 ^
VariantInit(&pokeVariant[1]); ; y7 }9 ]1 {, \* X! b
pokeVariant[1].vt = VT_BSTR;0 R) Q5 t# C, R$ a& R
pokeVariant[1].bstrVal = itemStr;/ a+ p2 O' ]+ X% R
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topicStr = SysAllocString((WCHAR *) L"system"); 3 r$ J, f: f# f VariantInit(&pokeVariant[2]); 2 X1 Q+ C+ h0 ] pokeVariant[2].vt = VT_BSTR;4 V$ t( n) {+ y
pokeVariant[2].bstrVal = topicStr;! Z, b) v& p9 ` W% h2 U
( B* z7 l- `7 w0 A9 z. z// Set the DISPPARAMS structure that holds the variant.1 R: h2 ]2 ^4 R# P7 u/ K6 m
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dp.rgvarg = pokeVariant;* `: r" Z& X: V. p; d i
dp.cArgs = 3;5 ]! r# }( V/ ?' y
dp.rgdispidNamedArgs = NULL;' \. D" c; U9 {
dp.cNamedArgs = 0;7 E& s8 p8 |) Y
7 h. I/ B, `( m1 @9 ]. i, L' S Q// Call IDispatch::Invoke() * C/ D# x# A2 j$ g! T5 L# r) T" {9 H# V
hr = m_pDisp->Invoke( 9 A0 O) h2 a5 f% W# i# ` pokeID,; [) d9 |) Z& F2 `7 _' F7 K* s |
IID_NULL, t! H: k' Q6 e, d
LOCALE_SYSTEM_DEFAULT, 7 D5 p L! K1 ?4 _) _/ A DISPATCH_METHOD,9 {/ F1 D6 [9 C
&dp, 6 b, v; j6 l" `2 F) _4 ?' g5 h NULL, 1 F5 x8 F$ e/ c$ i# i &ei,/ N8 L+ m, Q) @/ i
&uiErr);8 s8 |$ ^. ` n6 M; a1 l Q$ s
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SysFreeString(topicStr); r& g2 x8 U) T# k# r SysFreeString(itemStr);! ?' l2 I' J F6 c' B; c" p. z+ Z6 g
SysFreeString(valueStr);) v9 V* U$ x7 p! i& x5 o
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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???' w- }- i" I/ Y4 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???? . h) Y. a7 V2 }# f! l" d0 A4 z+ b1 V2 r, z& I5 z
9 r, h) M& @6 j; D2 p* C2.这是request的程序 9 d/ w q7 g. F2 G. o y7 @// Request a value from Extend, y) s2 K. X R* A: {5 |9 H- r- f
// 0 f% a! P$ k* D( L/ i// Initialize the variant that will hold the BSTR. Set the variant's( g1 m% e t/ s* w
// type flag to indicate the fact that this variant holds a BSTR. Place the & Z5 B- _5 m+ h& a/ R// BSTR into the variant structure. ( W5 k$ d# B6 a2 i - _/ n J( J2 _% T/ s1 T0 h& W requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, E% U8 K0 u) c8 g* `# A0 Y$ o
! a' c. |, R/ \ X& z itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); $ K f( P% O9 \' @; a+ J9 S8 a$ D; f VariantInit(&requestVariant[0]); $ F$ S2 g. [5 q8 K' g5 p' b requestVariant[0].vt = VT_BSTR; * p& H4 b2 }+ C( t# H8 W requestVariant[0].bstrVal = itemStr;5 ]9 }: P6 r" y. ]# Q% u
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topicStr = SysAllocString((WCHAR *) L"system"); ( }7 I! ~! ^" c+ x VariantInit(&requestVariant[1]); / y- y3 d8 ]& w requestVariant[1].vt = VT_BSTR; 6 q2 c( A9 `) N$ J6 N; ]2 L requestVariant[1].bstrVal = topicStr;2 G; x. N& E# N3 `! w; Z4 a* y E
5 i" i7 H6 u. p5 f N// Set the DISPPARAMS structure that holds the variant.3 @5 r9 ^$ S: }9 Y. V
4 C' ~0 [4 }/ L, [/ U dp2.rgvarg = requestVariant;, {( [* `. a* ~# @& h) g. u
dp2.cArgs = 2;6 z) g! J4 O( [+ T1 ?0 |
dp2.rgdispidNamedArgs = NULL; 2 } {" y) K- E" B; R3 k dp2.cNamedArgs = 0;5 L# J% W% y. T' G# o
, l6 @, T1 B' z var.vt = VT_EMPTY; # I1 T6 s$ Y( }7 ` . ^# M3 R" b# \" M. U// Call IDispatch::Invoke()7 l2 V1 I9 M+ e4 H
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hr = m_pDisp->Invoke(2 n! K r) h" B1 L0 s2 u
requestID, 3 U% f5 n3 k* A IID_NULL,8 E, a0 u* V* |: t W
LOCALE_SYSTEM_DEFAULT, . ^) `+ E/ D. W4 @) B7 h6 H DISPATCH_METHOD,! }3 |$ i5 F- ]; J
&dp2, 8 Y0 s. k$ K6 f &var, ; y. d# i4 ]0 h0 B+ p &ei,6 \$ X Q( |3 o9 |) f* Y6 J
&uiErr);2 u6 ], ]+ g2 w4 `
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SysFreeString(topicStr);3 Y1 K# s3 i8 x7 O0 l+ b' o
SysFreeString(itemStr); ! A' ^2 P P9 ^# J9 |3 @请问该程序是获得extend里面的哪个值?# S& _% ]1 T/ B6 M- l
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????