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: ( _! k6 K1 ~+ c$ cName = (WCHAR *) L"Poke"; \6 f& [# F0 x3 I& j9 x9 P2 Q / a$ C/ d" f5 ~: p3 P
hr = m_pDisp->GetIDsOfNames ( / W6 b9 R; r4 D0 D+ R IID_NULL, // reserved 6 r4 L8 g1 ~& { \/ ^- h+ u* e; q1 | &Name, // Array of names to get IDs for9 x" z& v2 |6 N e) ]
1, // # of names in the array 3 j& _& X8 W- d, f! j/ A6 I LOCALE_SYSTEM_DEFAULT, // System locale6 |' h& v# D, K2 I; h
&pokeID); // Array of IDs to fill on output6 W' N$ O5 s) q1 \$ D/ z% Y$ a
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if (hr) ( _' G2 V) [/ X8 T1 G5 B { $ o- D2 l3 O) a, t! }7 s+ w MessageBox ("Get Poke Unsuccessful"); % P6 j9 @& ^, M8 Z3 O8 o0 s" A& _ return;# j# M. y$ Y$ ?4 E1 L1 R- `# \
} " z: b r; e1 c8 ` $ B+ o E1 d% T3 P; X/**************************传递数据给extend**************************************/6 A) g, G) U e: N" S1 p7 X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); / x$ H* \4 {' A# a ! ~6 G! h. d+ }6 ] valueStr = SysAllocString((WCHAR *) L"1232");6 |% B$ H! ^# Q- D) J8 P! b
VariantInit(&pokeVariant[0]); / l- F& ~8 n# W) t' ^5 n/ S7 I pokeVariant[0].vt = VT_BSTR; - K7 Y7 F% w& _# t, t pokeVariant[0].bstrVal = valueStr; 3 e3 _' p- [/ C/ d 3 h) M, [# R: h( Q8 [ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. v: ?0 t6 h, A# ~
VariantInit(&pokeVariant[1]); - b* u, e3 G6 n9 F' F6 M1 j
pokeVariant[1].vt = VT_BSTR; . L8 h' f: b9 D- U8 i9 l1 J9 \ pokeVariant[1].bstrVal = itemStr; 1 T6 X/ F) V% x" r 0 Y) j- j k3 u+ I7 a topicStr = SysAllocString((WCHAR *) L"system"); " g1 r2 \, {8 R+ u3 F3 T U VariantInit(&pokeVariant[2]); ' C5 f7 B6 }6 d$ V; t6 @; Y pokeVariant[2].vt = VT_BSTR;6 t5 J; E5 N% P; x
pokeVariant[2].bstrVal = topicStr;) |4 p/ _# |2 H. ~" A
6 u' E: P% B( M4 U9 h, [// Set the DISPPARAMS structure that holds the variant. 1 E. K9 |; i0 B0 D ?0 s. Y( M0 v' _. J; }
dp.rgvarg = pokeVariant; 2 v d! s5 m& G dp.cArgs = 3;, s2 N: J! l' B
dp.rgdispidNamedArgs = NULL;; A c+ v6 Z! Z% Z% U8 c+ I( C
dp.cNamedArgs = 0;1 u3 Y, |& \% F \. M5 E" j
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// Call IDispatch::Invoke() * q; F% c- u+ y' z, ^2 o7 u9 V 5 p! c* m& V' K& l hr = m_pDisp->Invoke( % A% p4 ^6 I) [( J0 q9 t pokeID, 5 i; o* ~: K( n, p7 g IID_NULL, - g! K8 S f5 S- K9 e( } LOCALE_SYSTEM_DEFAULT,0 J6 b& |6 k; e5 l- S
DISPATCH_METHOD,- `" n0 \) \' L+ N
&dp, ) r( v, x+ U V$ {9 t$ ?1 i" b+ ] NULL, 1 ~4 K! I1 V* i u1 L3 S &ei,# E! a N, G, z) r$ b
&uiErr); Y% Z6 x6 \2 j
e& k& Z" Z; P5 q, B5 s5 U* L SysFreeString(topicStr);* c. c- O$ g1 ^! h* d$ |8 E4 n
SysFreeString(itemStr);. W0 t5 m5 K* r. d
SysFreeString(valueStr);4 W% i/ ?7 A8 w
2 C0 Y! E6 n1 ~7 ^* Y+ s: U1 u" h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??? l' T9 ]0 Q1 r
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???? + s& r3 b% c2 k9 V& O- }, ? & d, I L: B% p& v+ r" h9 S4 @& F - Q2 m ?& L. y3 K: q' _2.这是request的程序 9 r8 }8 t# S0 i. |5 d! Z// Request a value from Extend 4 {% b: E8 w/ x: J// ) }! f r2 ~* _' Z// Initialize the variant that will hold the BSTR. Set the variant's2 x- _0 l; d, l( j% e7 A
// type flag to indicate the fact that this variant holds a BSTR. Place the! _7 l+ E' H, F( D' F
// BSTR into the variant structure. 5 l' Y6 u- [3 F& T- H C; O$ u- V: L! O' {2 ]# y0 H( [
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); / J3 L$ A: y6 A+ G( ` c {) C j% T) `5 J9 J* f7 I9 x itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 V0 r7 Q5 J+ p. }2 Y: k5 P
VariantInit(&requestVariant[0]); ; ^% a3 O J, u$ x6 e requestVariant[0].vt = VT_BSTR; + m: s9 D" K9 i) }- c requestVariant[0].bstrVal = itemStr;- M2 u6 V5 Z, C/ f9 X
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topicStr = SysAllocString((WCHAR *) L"system"); + t% v2 [( F3 L# N+ V; q VariantInit(&requestVariant[1]); ' A1 Y- @7 J! z( l) v2 K requestVariant[1].vt = VT_BSTR;: X& j) V, v; b% F5 }9 H {
requestVariant[1].bstrVal = topicStr;5 J; M7 {: p e1 ?) m4 `
9 h, i, S+ W' Y! F// Set the DISPPARAMS structure that holds the variant.5 c5 v+ @4 E# T4 n' O/ }- j
3 W5 E5 j7 D3 X dp2.rgvarg = requestVariant;7 f8 R# s: r1 t0 y3 _. i E
dp2.cArgs = 2;' S- O4 m6 o/ S' B
dp2.rgdispidNamedArgs = NULL;5 n/ e8 W2 p4 I* _* e# U" W( U5 Z
dp2.cNamedArgs = 0;+ N' j! ~; g/ `6 E' P; v# R% X
3 A& N9 J- F* U, a+ H+ f var.vt = VT_EMPTY;. [# E* Q+ f t
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// Call IDispatch::Invoke()( T/ l# P% d! ]
6 O- D! l) V) ^* ?% s hr = m_pDisp->Invoke( " V, \& ]0 O" |9 A6 y7 w8 a requestID,: C, q4 _, i( f8 O) j o
IID_NULL, ) }; X' C& `% D) L, C' p LOCALE_SYSTEM_DEFAULT,' O% I# l; \* @8 {0 G, A
DISPATCH_METHOD,* _* J( W. O$ U: f. Q. x
&dp2, ; W b" B, X1 `2 M( l &var,# }# ?& f# A, L+ d2 @
&ei, & Q$ e$ y' P# A+ E) _ &uiErr);- v& ^0 A& ?* M3 F) L6 T
" a h. m' v- t- g1 o m0 i2 N SysFreeString(topicStr); " |7 C5 E+ n2 C7 }9 R SysFreeString(itemStr);( C4 Z7 o8 G5 {3 l6 j
请问该程序是获得extend里面的哪个值? 3 l* c/ U$ Q) ~) B: V. `1 N. P; W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????