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:" [- }0 P1 R9 a; x2 \
Name = (WCHAR *) L"Poke";) B4 D3 i& ]! q. B
7 T1 F; R3 M4 _, d- C hr = m_pDisp->GetIDsOfNames (3 c, Z2 E' A' N H# m
IID_NULL, // reserved 3 w6 C* q$ k* Z; V- Q3 v- k) ^ &Name, // Array of names to get IDs for + X* ~2 c, ~( L! y X2 { 1, // # of names in the array - C; m9 H2 I; C' v* Y LOCALE_SYSTEM_DEFAULT, // System locale% Y$ P# T3 i" e L
&pokeID); // Array of IDs to fill on output - R8 r6 X. h2 G/ D8 Y$ L8 H* |6 T0 G 7 f1 h, e7 u6 d* e, d
if (hr)1 [2 Q$ m$ R) N4 @. _, [4 u
{ ! X3 w* p! B9 K( F MessageBox ("Get Poke Unsuccessful");. S8 O/ B9 }) F1 I& n6 n
return; 4 @5 Y# g4 b4 T5 x" p. j } ( U6 k& V+ o/ p9 S) d& t/ A& |- K4 r& ~+ n
/**************************传递数据给extend**************************************/ 8 ~0 I2 u) L' d. A# S# C pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);! |- Z: c- w: P: S, `# t% Y ]
" a& a, G% S, B. \* X- h K. ^ valueStr = SysAllocString((WCHAR *) L"1232"); 7 e( I3 I& _, V1 w% w VariantInit(&pokeVariant[0]); / _; a4 i6 \% _$ h pokeVariant[0].vt = VT_BSTR; 9 [# L/ [9 P, J z6 g pokeVariant[0].bstrVal = valueStr;* N- S5 m5 |- p" N+ i: @8 @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 2 x# \8 t4 N- t5 e1 X; S1 a! S: F VariantInit(&pokeVariant[1]); * O# q7 w4 m$ C$ x% J- u0 l pokeVariant[1].vt = VT_BSTR;; n, S- W6 r m! Z; |
pokeVariant[1].bstrVal = itemStr;6 x& V" ]; w2 \( L4 k! @: X' L
0 X( K. ?9 h8 i: P; H J topicStr = SysAllocString((WCHAR *) L"system");, |6 }, ], Q6 U @; Q: d2 a
VariantInit(&pokeVariant[2]); 7 P% j; }1 x5 ?; C* H( L$ i
pokeVariant[2].vt = VT_BSTR;0 i+ E1 S1 D; E
pokeVariant[2].bstrVal = topicStr; 9 `3 s- ` h( y! ?* E7 A2 x+ n- V1 X: g; }: i: ]6 [
// Set the DISPPARAMS structure that holds the variant.. c% z) Z* \, y
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dp.rgvarg = pokeVariant;& `& C( }- W, |2 Z8 d
dp.cArgs = 3; 8 q' a E& x- [5 \ dp.rgdispidNamedArgs = NULL; + w/ \1 {! }" k: { dp.cNamedArgs = 0;( S5 b: n/ G& q" f8 L9 B8 z! F& R
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// Call IDispatch::Invoke()* h7 G) Z& e! n/ O# m0 R# U
; d$ A- ?; c. t8 N hr = m_pDisp->Invoke( # @8 r3 s$ ?+ e) t: t5 @ pokeID, 4 \; V) q9 W2 ~ IID_NULL, , @! ~8 c7 D/ J e LOCALE_SYSTEM_DEFAULT,' @8 x. }, Z+ `# R# d
DISPATCH_METHOD,; d5 {8 B( C' @: m
&dp,/ c1 r, R8 D _( p1 Y! @
NULL,$ N! L( ?- ]$ Y/ V) @
&ei,/ P+ _% X1 p9 ?; g! n3 L$ p
&uiErr);" T$ Z$ D! W5 ^. c. E
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SysFreeString(topicStr); ; g* K4 J# O. [ SysFreeString(itemStr); " `) c* f% @9 u2 [ SysFreeString(valueStr); . h4 S! _& ~4 w R7 g! i8 L1 ]3 e7 @6 t6 \, ]9 ]: Q
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??? 8 O) b" S! E9 D7 `+ N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???? ?, P! k- P! R* x8 j# n8 L( p# z2 r" G7 V/ \/ R1 x
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2.这是request的程序$ _1 `5 ^ l" Q0 `' s
// Request a value from Extend( v. L% N4 C% B u; M4 g
// 5 |5 b6 z$ u" Q& {5 [( K// Initialize the variant that will hold the BSTR. Set the variant's( m# }4 O9 v0 _
// type flag to indicate the fact that this variant holds a BSTR. Place the ; P. h# Q6 S8 e9 g" \ L// BSTR into the variant structure. V! G( Z+ A0 t9 R3 L, U" ~8 \6 P) ]. k S% q. j
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ) [: H. W0 z4 ?3 K2 l L 7 x% F6 R6 n5 K& P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); D8 o; R5 `- @+ d+ p# F, Q [6 B
VariantInit(&requestVariant[0]); C) w2 |" v5 l5 ?# B/ U8 L$ W requestVariant[0].vt = VT_BSTR;! f7 u O1 n8 E' Z) t
requestVariant[0].bstrVal = itemStr; $ |+ j, y$ v6 ^1 v+ u J. j0 V1 v. X9 e1 n
topicStr = SysAllocString((WCHAR *) L"system");' ~& b5 B- d. C$ D- i* U
VariantInit(&requestVariant[1]); . M; v8 Q& [- L4 P e
requestVariant[1].vt = VT_BSTR; 7 S! W7 A: n' H; R* C: l requestVariant[1].bstrVal = topicStr;9 ~. X5 \; ~2 z6 ^
* }/ E$ y: C, b( f( b. |! S" s// Set the DISPPARAMS structure that holds the variant.2 W$ F% k' J6 T& `2 f8 |9 T
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dp2.rgvarg = requestVariant; 9 D/ \$ L" u2 S1 k8 |# m4 G dp2.cArgs = 2;( @1 B8 p1 o! L7 C
dp2.rgdispidNamedArgs = NULL;& r2 e0 ]" O8 b! f+ H9 i
dp2.cNamedArgs = 0; + m8 r% g" [7 l2 o' Q' z% k! a5 S( D6 O* N9 |* E& w
var.vt = VT_EMPTY;' O' M q% I0 t# ~5 H
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// Call IDispatch::Invoke()) Y: u F7 j/ i- [4 {0 X; Q
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hr = m_pDisp->Invoke( ! a- Y3 N( w6 l6 x, y; ` requestID,& P; D+ O' U! r" y9 {6 v
IID_NULL, 9 f% a: I4 N& p) v) T% L* E; X LOCALE_SYSTEM_DEFAULT,5 V5 O5 O" u, ?
DISPATCH_METHOD,1 W& C# v0 F/ O
&dp2,% k9 H* ]5 i# D- c0 q
&var, X4 G& d& x/ L9 R &ei,9 ~2 J/ |3 J+ C0 I1 Q/ S
&uiErr);! K7 T* E; E' i
# v% j% B' X+ N1 \; w, t
SysFreeString(topicStr);; `1 j. `4 B, Z2 o: ?) ~
SysFreeString(itemStr);" Q7 O. K: z" t7 j8 Z% W2 a
请问该程序是获得extend里面的哪个值? W: B- r/ ^6 [8 l. ^' S
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????