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:, U0 |0 }; E! d4 Z* u4 N" p# `
Name = (WCHAR *) L"Poke";# D2 v5 d W' B: s. O# _
" O6 \) v6 v k; s1 }( x+ N, @ hr = m_pDisp->GetIDsOfNames (" M6 A# b+ \) s* e% B2 F$ Q
IID_NULL, // reserved 1 e5 U' g8 a2 N: | &Name, // Array of names to get IDs for " Y+ Y3 `5 ~$ x# r 1, // # of names in the array 1 ], G$ F" B) e' h) o: {+ O% \5 ? LOCALE_SYSTEM_DEFAULT, // System locale( J. e% M' }6 b2 {
&pokeID); // Array of IDs to fill on output, t2 z- g% f: R( K; U1 }8 X
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if (hr) % m9 y4 r5 v' A+ m( {* V0 R! \- E {- p+ H: ] }0 e1 D( w1 \8 ?
MessageBox ("Get Poke Unsuccessful"); 6 ^. y e; M6 S! t return;3 g# d0 I8 S3 |# j' w- {" J
}; w; T7 h1 \1 v& h7 P
/ n. E2 p% c4 D; U/**************************传递数据给extend**************************************/ 1 l4 U4 z( ^9 `$ ?1 l, `& L pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);# s; c% T1 E/ F4 V/ R; D2 y S) q2 H
{1 Q8 J8 Z* ?0 Y- m E valueStr = SysAllocString((WCHAR *) L"1232"); + P5 O5 S1 p% K& T VariantInit(&pokeVariant[0]); * P9 Y5 x5 p$ j
pokeVariant[0].vt = VT_BSTR; 1 A8 R$ i! [ L# v/ i+ }3 R pokeVariant[0].bstrVal = valueStr; ; S! w, m. m4 ?- H) g2 p' ^5 C+ O3 F# Y- h0 i% h. m ]5 T) c
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * u! X- | K! k, u VariantInit(&pokeVariant[1]); ! \ ^' ]; q, P6 I7 r; H% e* ]8 ^$ X0 n
pokeVariant[1].vt = VT_BSTR;) |1 o. |+ H s, v; V7 _
pokeVariant[1].bstrVal = itemStr;! G3 t4 ?* i8 k7 T
/ L0 h4 z6 M" x topicStr = SysAllocString((WCHAR *) L"system"); ) d/ k! X" z; s8 Z0 ?7 B$ E VariantInit(&pokeVariant[2]); w; m* W- x6 a
pokeVariant[2].vt = VT_BSTR; M' t8 B8 S) d+ ` e
pokeVariant[2].bstrVal = topicStr;* t9 O2 b7 j; n3 H- W% Y5 d' p( q
$ s% e( K3 Q2 f! w$ O W9 g
// Set the DISPPARAMS structure that holds the variant. : _% p2 G( ^; j( ]) _- ^8 [ C1 e& M% M. w7 K
dp.rgvarg = pokeVariant;' H( ~9 r$ v& f5 ?
dp.cArgs = 3; 2 N7 h8 j. W. G dp.rgdispidNamedArgs = NULL; . s6 |4 z* ?9 y8 M2 T) ^ dp.cNamedArgs = 0; A I9 x! h. R3 B) A7 ~/ @* a; x- Z7 F' |
// Call IDispatch::Invoke()' a- H) l5 E5 A0 f7 k: c. z0 X
. L! H0 {: {2 P' c1 ^& z4 M$ t hr = m_pDisp->Invoke( , d7 }2 @0 t S; p4 t0 k pokeID, ' Q9 w, L0 B6 z% c4 y' l IID_NULL, & G6 H* s n* e; _, s1 T LOCALE_SYSTEM_DEFAULT, 3 `8 z) ^, p9 R9 F DISPATCH_METHOD,1 z: y: ?3 {, J7 T% l8 T
&dp,! v% f1 l* R$ G# _
NULL, E. p( I" g/ _- ~: N" U &ei, h% O8 Q9 ^( z4 D
&uiErr);( O. ?+ M% m+ g5 J0 a
a( k( e8 b/ i% x! J SysFreeString(topicStr); % y7 z! X- \7 `/ U& _ SysFreeString(itemStr); 6 V# y7 z$ w: k: G8 ~4 ^: W( M SysFreeString(valueStr);/ ?1 Z$ J w! y2 X
* [4 o- Z. u) v R5 `
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 b [0 E$ ?9 E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???? $ b2 D+ z1 o3 o/ N% d% b $ T" p% |/ b7 q" ~: R7 d7 P: Q" [) T H) X1 W) ]+ v
2.这是request的程序4 u. M% Q$ ^4 j" h
// Request a value from Extend 4 z3 F% t* ]2 t// 7 w. A: u+ o5 Z5 s1 D) S* L* l// Initialize the variant that will hold the BSTR. Set the variant's 7 W3 Q% k0 m1 k! |- \1 R5 y// type flag to indicate the fact that this variant holds a BSTR. Place the# b5 b/ L1 a+ p! I( i; x j9 J+ M
// BSTR into the variant structure./ h1 k& c3 i- { k
+ I7 a& _8 g, }( P$ H) l; C. T requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 f( M2 V( l+ \7 u) ]0 n+ |2 F w $ U; X1 ^' E9 L$ C5 X9 ^
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 _" G9 c1 K5 I/ @" B2 y& H
VariantInit(&requestVariant[0]); # _- G' a. t# F* p* R; W# v' f
requestVariant[0].vt = VT_BSTR; p& y! @$ _3 o& O
requestVariant[0].bstrVal = itemStr;9 E! q# h% m" K* p/ Z9 y
/ m2 I5 Z3 W: b& R, \6 C) j8 E topicStr = SysAllocString((WCHAR *) L"system");1 k0 F& u( W! U
VariantInit(&requestVariant[1]); 9 @( ~$ M7 M# q k1 z8 D requestVariant[1].vt = VT_BSTR; - v% ~4 h& t1 [0 i' g: y4 r6 t requestVariant[1].bstrVal = topicStr; + `0 d0 E1 t( O' ?, |0 k5 t0 a ) ^9 s3 ~. T5 T! r4 D- L8 K! \// Set the DISPPARAMS structure that holds the variant. % p$ R2 @5 w* q9 [- F- C3 y, f8 P) _" l/ N
dp2.rgvarg = requestVariant; 8 ~4 i3 }; \: V" R dp2.cArgs = 2; ; @' u6 `0 T6 Q! J5 n dp2.rgdispidNamedArgs = NULL; : x" K# z8 n; e3 f9 ]9 _2 E dp2.cNamedArgs = 0; . \! g) X0 j) Z* H& V" L3 l3 D7 V9 F. q* D' C# `: T
var.vt = VT_EMPTY; 7 r& S" {9 T; G7 |+ c9 f 8 ^; \4 `0 l( i% o// Call IDispatch::Invoke() ) _8 b3 s& f' W7 ~- g4 c" d9 k ! B5 x6 X6 Z% L# h hr = m_pDisp->Invoke( i; w4 g) m2 l0 D
requestID, 3 y; w7 N/ l0 Y7 O IID_NULL,' o. ], S+ [) r; z' v
LOCALE_SYSTEM_DEFAULT, % b2 ?- h) G9 o/ y DISPATCH_METHOD, 7 t; n; ]" d) n, ~ &dp2,( k* N( W1 o$ `* I4 {, d* ~
&var,5 o5 @1 `8 P# i U
&ei,+ s6 E' e: k8 t
&uiErr); 7 K9 q" a" M+ j1 o/ I, i; o& W( K 3 k5 n4 H) M% H; f& d SysFreeString(topicStr); ; i) x. z% l7 P! l SysFreeString(itemStr); 6 t$ k, F0 K0 Y( g2 U请问该程序是获得extend里面的哪个值?! \$ T1 I9 y0 |# D5 N1 |' z
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????