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: 2 f' p: X1 W4 ? X1 PName = (WCHAR *) L"Poke";5 a, D9 K3 z0 _0 z
* J* \& j! z4 M2 N& w7 M hr = m_pDisp->GetIDsOfNames (* D4 J3 ]% w+ f( Y
IID_NULL, // reserved1 o9 H" Y! x* q
&Name, // Array of names to get IDs for 3 c/ W1 r( ^ i 1, // # of names in the array # j' \* b/ l9 N1 p LOCALE_SYSTEM_DEFAULT, // System locale 3 C8 W1 B1 `) R5 r, n &pokeID); // Array of IDs to fill on output3 }. m9 \, ^2 M* }5 _2 P9 |
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if (hr) 5 w5 C7 k2 W, @4 g { & i0 y4 a" a& M3 I! L+ x MessageBox ("Get Poke Unsuccessful");$ ^9 Q2 t! n. Z. a0 s% A
return;0 U8 Z& z1 [( F: k# y7 {
} 9 L5 E. t7 n% G3 H9 [ - u: v8 m' e4 K' a5 @; b3 W/**************************传递数据给extend**************************************/ ; z9 \6 d, n5 \8 p4 K, U$ @ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);) I2 Z: v R1 K3 W
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valueStr = SysAllocString((WCHAR *) L"1232"); / C2 z, x3 d0 a3 s. E+ K7 d1 c5 h VariantInit(&pokeVariant[0]); % p7 q# L) ^/ G( [
pokeVariant[0].vt = VT_BSTR; 8 [+ j/ H2 b+ c' [2 `+ P& M pokeVariant[0].bstrVal = valueStr;8 L3 y& c: m3 F% A
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 3 U7 r7 ~, G6 d9 Z VariantInit(&pokeVariant[1]); 1 c- B5 z% P, b; ?. u8 N7 P
pokeVariant[1].vt = VT_BSTR;, t4 `5 j: |: R- _9 V
pokeVariant[1].bstrVal = itemStr; \& q3 }* P1 s) s* X: g3 x5 I9 ]$ m
topicStr = SysAllocString((WCHAR *) L"system"); 2 p; C: V$ C- q1 X1 t1 M9 O2 v VariantInit(&pokeVariant[2]); , A1 x0 `( f1 U! ~: G2 X! U
pokeVariant[2].vt = VT_BSTR; ) N) J' ~* f. l* E pokeVariant[2].bstrVal = topicStr;! g) D" e }1 c, f7 [/ i: E* |6 {
! G. ~3 M9 X3 }* V; D$ S// Set the DISPPARAMS structure that holds the variant.# k; F. F) V# Q h5 p
* O7 U" p k& @$ g& k- U( B dp.rgvarg = pokeVariant; . |2 G4 p# H1 I. `7 u& ?0 m dp.cArgs = 3;+ {$ t, f5 ~8 U# D% M
dp.rgdispidNamedArgs = NULL;/ Z5 Y' d8 i1 S* s4 l; A
dp.cNamedArgs = 0; / T; U: L U" m8 K- K5 L" X/ f6 o% X* F8 j, T
// Call IDispatch::Invoke()0 l& B! ]% L1 E' r( C1 V
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hr = m_pDisp->Invoke(( ?) z! h. {% j1 M( z; O0 G* {
pokeID,, J3 e5 x+ t; Q: j
IID_NULL, $ L: X" {& B, Z& i3 W LOCALE_SYSTEM_DEFAULT,8 M U" _0 J0 Y3 j
DISPATCH_METHOD,; L- i e: d M7 V+ F) `/ x
&dp, ) `$ M' K* s$ c7 m/ Y$ p+ x NULL,( |1 u& g$ R& l D4 P3 A
&ei, # C5 \: w6 Y+ o3 l" N; m &uiErr); 8 q9 F8 r: J9 f/ T; z/ ~ 9 R2 D% G* I3 } SysFreeString(topicStr);! s, g& h) _! h) L
SysFreeString(itemStr);1 ^( O4 p8 k7 {) X
SysFreeString(valueStr);- u6 v$ i) ~! }+ F# a# D( u q2 c
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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???: p; r* W; D' N+ C
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????% q: G7 D1 Q' m7 u: u
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2.这是request的程序 3 {# p4 [: H4 e# c: Z" h Q// Request a value from Extend4 e/ |+ P4 b4 R9 w) k& Z
//& R3 p4 q" ^/ ~7 a/ t
// Initialize the variant that will hold the BSTR. Set the variant's8 i- K9 Z; [. C
// type flag to indicate the fact that this variant holds a BSTR. Place the u) ^2 f; F' h l/ P+ Y6 c7 V// BSTR into the variant structure. / @) }& j7 j- n* P) T2 U- `: K5 v 0 }: l4 f6 n$ o8 U requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 9 R" z3 M3 ~' g! \& n U / T/ W, L8 C$ O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " T9 E# L% V5 n) ?, k+ \9 Y0 v+ x VariantInit(&requestVariant[0]); 6 l" d- f2 g6 ?; P# p9 B7 u
requestVariant[0].vt = VT_BSTR;1 y3 E& w/ H8 D& m0 e
requestVariant[0].bstrVal = itemStr; : k3 v, {1 Y6 d3 J' q. {4 c& M- w& m! \' {. }+ c7 T
topicStr = SysAllocString((WCHAR *) L"system");% ^( ^4 A) p6 F0 q/ W, u8 O0 E
VariantInit(&requestVariant[1]); ! l3 m8 m% y/ x2 s3 H J7 {
requestVariant[1].vt = VT_BSTR; ! \+ G. x$ _) N9 E! l/ k& w requestVariant[1].bstrVal = topicStr; , a6 F+ D" V- Q& F1 J & o: X$ Q' f4 T7 i% j// Set the DISPPARAMS structure that holds the variant.8 y2 F7 d9 y( E- C% V6 |: |, e
' t. y+ K3 p u# n! l% F1 c dp2.rgvarg = requestVariant;# L7 R3 q6 D, i; p4 C0 i
dp2.cArgs = 2;$ c: x! o! x9 t, n
dp2.rgdispidNamedArgs = NULL; w5 a+ q, I1 W: w% s dp2.cNamedArgs = 0;% v. z: V3 Q ~( C
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var.vt = VT_EMPTY; # C$ ~0 n- v+ |3 W1 W$ y% ~' f; i1 G O/ k
// Call IDispatch::Invoke()! x9 G' b, G* ]
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hr = m_pDisp->Invoke(* o9 k) D7 `0 u9 s
requestID,- ]" {1 x5 l7 _. O9 Y9 m4 }
IID_NULL, 3 c: Z6 b& G" ^$ w LOCALE_SYSTEM_DEFAULT,1 D) \" j& }, M' c& z9 P- {) Y
DISPATCH_METHOD, 4 w/ ]) i* h6 o9 ?, X) I &dp2,5 [" l' e: A2 @' L9 O5 L+ B
&var,, P3 @5 {( k d N0 Z+ Y
&ei, ' Z! n! U/ c* h5 C$ D &uiErr);& Z1 v9 N' Z3 `+ J1 R6 I7 H) q" X
3 ~: N9 _6 k l, i# c. F3 u SysFreeString(topicStr);: t* A' ]- @1 u4 T6 i
SysFreeString(itemStr);1 c. B" L0 [. j& P. D4 h/ c
请问该程序是获得extend里面的哪个值?/ ^2 y: {6 G: y# C" ?; 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????