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: . ~+ |3 S, a5 JName = (WCHAR *) L"Poke"; " _) B0 C# l! A$ y0 w( f" o 8 |8 r3 b" q5 a7 n6 I
hr = m_pDisp->GetIDsOfNames () J& ^) v5 m% h6 n. n1 e+ a( a2 ~3 a
IID_NULL, // reserved3 f/ W; A8 E: ~+ _
&Name, // Array of names to get IDs for( R0 V# C H' C1 u/ M @
1, // # of names in the array ' P3 h3 Q! K) m LOCALE_SYSTEM_DEFAULT, // System locale 8 }6 Q( v+ b) J5 {+ F* ?$ Q# T &pokeID); // Array of IDs to fill on output " e# C/ Y. [ V" M. R. b2 Z% a ; R- Q5 G9 p) `: U- S% m7 P
if (hr); T( |3 V7 \6 [( L' G
{ " v4 }: j1 l J! u MessageBox ("Get Poke Unsuccessful"); , v3 V& T, P- I0 o% w) A7 K% v return; ( e/ y+ u1 U) d3 ^ }9 Y5 {" i5 B: z, Q; V
3 R9 K+ l. d; p1 @9 w+ u9 O! F" ?/**************************传递数据给extend**************************************/ 3 T t% L% j5 G1 m7 G. g8 S- w) j pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 J/ a% `- D* Z1 v9 X- T' y " o5 l1 D2 Q0 A( |9 g k; n valueStr = SysAllocString((WCHAR *) L"1232");1 w) s- G* x S/ C& ^* ] E" o
VariantInit(&pokeVariant[0]); ; k4 I" ?- h' p: l- L- G- d pokeVariant[0].vt = VT_BSTR;# n: S+ t% W }5 x, W7 V! g7 D
pokeVariant[0].bstrVal = valueStr;# Q8 d8 z& u& x1 B
' f7 L |; D& d: m itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ! ]0 T$ y* q T; Y5 \9 e VariantInit(&pokeVariant[1]); # S1 g* p; O3 S( e6 @/ C* }& z
pokeVariant[1].vt = VT_BSTR; 4 ^0 G/ }# e, h3 |/ m- b& ^/ `9 J pokeVariant[1].bstrVal = itemStr;- J8 X7 A6 C5 I$ \: Y L
$ A' y& }8 c3 P6 S, Z' W0 J topicStr = SysAllocString((WCHAR *) L"system"); ) S: Z6 j( U I VariantInit(&pokeVariant[2]); ; D8 h0 k: l. K- C& Z- H pokeVariant[2].vt = VT_BSTR; 7 a" |4 j( P$ C% W' h7 t, P pokeVariant[2].bstrVal = topicStr;2 {6 A0 f2 O& x
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// Set the DISPPARAMS structure that holds the variant.5 f3 A8 Z9 U9 [9 Q: }" \" t
* j, M) b0 Z; V) ]; P6 V' y dp.rgvarg = pokeVariant;1 ~% p) C& }5 R
dp.cArgs = 3;8 e5 A N* \4 [, @3 D& J
dp.rgdispidNamedArgs = NULL; , _: n ^6 g% |0 ~ dp.cNamedArgs = 0; 8 X% C" `, K [4 y6 z( Q+ m h" K+ u) ?; w4 @3 [. O, X
// Call IDispatch::Invoke() $ d8 I6 m8 a/ t% H" E. G2 a0 ~# ~0 p. z
hr = m_pDisp->Invoke(. v0 r! D8 j: p: x
pokeID,2 B r& o3 p* Z/ {" [5 _ x, s
IID_NULL,2 V6 |8 I! l; {( {4 F7 a' {
LOCALE_SYSTEM_DEFAULT,; P& _. K" s% ^3 C
DISPATCH_METHOD, 6 j9 w. \$ d1 u( X4 U+ o &dp, 7 O0 v' l! U- i; F NULL,$ E1 D& k) m ^* ]' B. @
&ei, 0 ~- |" e7 G7 x, l &uiErr); 6 P" N1 ]; M$ p1 M- B# d! o# O6 m3 f2 l; P% d: _
SysFreeString(topicStr);- l& r+ m& ^# e2 f$ o. X
SysFreeString(itemStr); ) a* a" q/ V8 B$ d SysFreeString(valueStr);+ l7 |' I& F9 o0 H+ E3 F& b
1 ~5 U# p# B0 [* a- O" Y4 _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 v0 Z) ?0 ]( `% a: Z4 o
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???? 0 Z$ e6 _) Z0 ?, ~ 8 Z5 V+ }3 P- P6 s+ |2 m" I4 h, e) M% V' f4 x# l
2.这是request的程序) \: o1 G: v$ R, t3 ?, _; F
// Request a value from Extend : s9 e/ M" g; G9 T) o: M// ; C: r. u' K+ E% O4 {// Initialize the variant that will hold the BSTR. Set the variant's: @- ~1 Q7 P( d, \ s! D) g
// type flag to indicate the fact that this variant holds a BSTR. Place the ; t6 B/ {) a4 q// BSTR into the variant structure.2 R6 d" p7 r. y+ E: I
9 @" c3 F8 J& D' x8 V2 i requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' I" R: z7 v0 j' J' h
1 M; n# D% c+ f* N9 O! G) T2 ~( G' q4 H itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); * m; Q0 `$ _7 k6 s1 |+ @& f VariantInit(&requestVariant[0]); 3 I! j! l. Z: n3 A1 T" d! w) v requestVariant[0].vt = VT_BSTR; ( ~5 y. J% g3 k requestVariant[0].bstrVal = itemStr;5 J( l0 C9 V0 l3 k3 [- [1 @
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topicStr = SysAllocString((WCHAR *) L"system");4 t6 d. t7 y9 i/ D2 g% O
VariantInit(&requestVariant[1]); * O( H8 U/ c3 B requestVariant[1].vt = VT_BSTR;/ w& p. i! [2 D7 i
requestVariant[1].bstrVal = topicStr; 8 u/ ?5 s" }/ s - A6 X: X) M6 i6 g" ] M+ @5 ^// Set the DISPPARAMS structure that holds the variant. 5 R7 `4 s" C& V1 e( @: s2 F+ S+ ?. b9 Q$ n0 u
dp2.rgvarg = requestVariant;5 [1 }4 \8 a& b- `1 V
dp2.cArgs = 2;. J6 g" d) }/ }: o7 p6 [
dp2.rgdispidNamedArgs = NULL; + n5 I4 S4 o0 ] k; Y% w4 Q dp2.cNamedArgs = 0;3 F+ ~" K2 k. C8 ] j' H
$ H' j: h( \- e# X# Z/ I$ I t4 H var.vt = VT_EMPTY; . j2 \- _; U# S9 D/ A' N" U: n! F- V/ T+ I& _* C
// Call IDispatch::Invoke() h* u; G- E5 k# M3 l, ~9 q2 @2 Y
K& d( N; v* d5 I
hr = m_pDisp->Invoke(4 p3 R |' a) E' Q+ w
requestID,: H8 M$ Y. ?5 {/ J
IID_NULL,7 j# V: M! k! [, y5 p
LOCALE_SYSTEM_DEFAULT,3 m- d# r# [$ ]8 ]; \/ I9 \
DISPATCH_METHOD, 0 l/ C. L! e6 }' i/ o0 q$ E" h &dp2, 6 t# z! n' W0 T &var, - W8 h( o) M; W" y) O &ei,* y" R5 K5 {1 e. [
&uiErr);5 }8 Q6 c( I, o# Z
8 e7 o/ O! M" V. ?* O; E. _5 d
SysFreeString(topicStr);, H4 s" U0 F# r9 V" y! Q, b
SysFreeString(itemStr); $ f: R' e) s& M; v/ E n请问该程序是获得extend里面的哪个值?, u# I! r0 b! U/ V6 D% x: E
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????