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： / ~6 V& r: t( J2 p* {1 A4 _Name = (WCHAR *) L"Poke";, N2 G' U3 R+ d5 R8 |
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hr = m_pDisp->GetIDsOfNames ( ' k+ }! D, [3 {; E$ q$ V4 k IID_NULL, // reserved1 t7 {7 s% U8 ~
&Name, // Array of names to get IDs for3 z" B( b9 Z6 Y
1, // # of names in the array 0 v7 i) C# x4 n5 l- ?& ] LOCALE_SYSTEM_DEFAULT, // System locale- ^' E. _( Z: a& n: N2 f, e1 s$ D
&pokeID); // Array of IDs to fill on output9 W# l, x/ d; I* q( H: a
0 B/ m6 n& v' B# e6 t2 p; @: k5 J if (hr)* }% l" k4 c0 W+ @9 i
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MessageBox ("Get Poke Unsuccessful");( I q8 w3 x. F2 I: x. h
return;2 A3 M J. y: U, r/ X4 e0 g% _
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9 i0 f* Z& b2 W! G6 ^' d2 M) p/**************************传递数据给extend**************************************/( z. C' |& V5 {9 {) J3 k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); " S& f1 }# ~. P, U3 M) f 7 O; T r7 m. y p4 i; c
valueStr = SysAllocString((WCHAR *) L"1232");9 C$ p6 ~& H8 [! b* u
VariantInit(&pokeVariant[0]); 2 X8 b. Y5 P, K: u. V' h# ]2 i pokeVariant[0].vt = VT_BSTR; 4 @$ _: `+ |, I pokeVariant[0].bstrVal = valueStr; 2 v6 \# z: r' U( h6 ^ ( Y0 P0 [; A _1 \$ j9 i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" @6 n; o/ P: u- `9 I
VariantInit(&pokeVariant[1]); + g8 e- ?0 k) a pokeVariant[1].vt = VT_BSTR;; y% m! X1 }# c ~. ^5 Z
pokeVariant[1].bstrVal = itemStr;! ~: g C( i/ a' B+ W3 h
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topicStr = SysAllocString((WCHAR *) L"system");! D/ O" S$ P/ x' H. l" Z
VariantInit(&pokeVariant[2]); % R* L3 }9 X9 t1 |3 r- d
pokeVariant[2].vt = VT_BSTR; 6 B0 B/ f! { R4 P Q8 n7 v% G* x* x pokeVariant[2].bstrVal = topicStr;% a6 n: z$ [) }& d; \8 ~
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// Set the DISPPARAMS structure that holds the variant. D) f& y$ k/ R+ @9 w8 h: ]3 r* o( E+ y {* s3 I( I% k
dp.rgvarg = pokeVariant;( }4 c' w, y$ ?( c( d2 m
dp.cArgs = 3; 9 C* |3 f* x$ J* y# B dp.rgdispidNamedArgs = NULL; ) g* k5 R8 F( V3 h dp.cNamedArgs = 0; 7 X! G1 H/ d+ t* C2 Q2 a" s; t1 o4 `# ^1 B& G4 O i$ P) }; D
// Call IDispatch::Invoke()9 R j% i5 W, N6 p
& G/ S' v! ^! \+ x5 c8 D; W hr = m_pDisp->Invoke(6 d, k) ^/ X2 V: j- O0 `8 w, [
pokeID, 4 z+ A: R& K: Y+ n/ s$ [! o IID_NULL, & c2 v4 z# F6 d LOCALE_SYSTEM_DEFAULT,$ u$ p* M& A8 i
DISPATCH_METHOD, : o+ ~" T# o: r/ d &dp,& O4 L/ X! ?7 S. j" N
NULL,* C8 b( D6 _. E, g4 C! N
&ei,& n' F$ z0 I9 G
&uiErr);3 ~/ d2 m8 S% P. e5 k
& N. B8 F4 O8 J% b SysFreeString(topicStr); y2 v& ^3 c3 v m SysFreeString(itemStr); 1 e, X7 V8 r6 i: E4 M3 s" r SysFreeString(valueStr);( E- T6 ?& j/ T4 v/ C9 _
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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？？？! W2 n+ z) t) h6 V5 ?) b, G
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？？？？1 A; h4 Y. Q. P0 u( v
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* v" c+ Q/ Y. o8 H3 D2.这是request的程序 2 P x+ {1 u0 z// Request a value from Extend 2 y& Z4 ?) x7 R/ H5 s// " M+ }, e K* |( x( s* d+ a// Initialize the variant that will hold the BSTR. Set the variant's . `: h4 u) X/ m% B1 C& r$ m* d: l// type flag to indicate the fact that this variant holds a BSTR. Place the; f5 N" R4 H5 q2 ~. }' @+ e' F! |! U
// BSTR into the variant structure.) z. Z# [" e: m% R- W+ z5 V- }/ B2 C
. T8 q% |. ^1 ^ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 1 D6 t- A' A( O2 D9 O ( z7 S X- g- E# v, z- l; D5 ?$ ]* C
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% i9 D9 m9 V! W! x% D
VariantInit(&requestVariant[0]); # b7 H9 ~! T5 F5 d% G7 ? requestVariant[0].vt = VT_BSTR; & F9 }$ q- x! D( O# V, \ requestVariant[0].bstrVal = itemStr;+ n2 v, Y( b V7 j
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topicStr = SysAllocString((WCHAR *) L"system"); * u! q# q/ c t5 u0 t" S4 P! V2 L VariantInit(&requestVariant[1]); . f K" V, v3 T' J7 K" M" L8 w requestVariant[1].vt = VT_BSTR;6 \, k O) I$ C6 ]- Y0 N9 f. d
requestVariant[1].bstrVal = topicStr; 8 M0 Q, H4 E2 `& j8 b8 u; E; z/ r2 \7 B3 _6 P/ K
// Set the DISPPARAMS structure that holds the variant. 1 G: n' l9 | F8 g! ?' V1 k8 m' R6 X/ U9 U4 a! _: C; z+ G
dp2.rgvarg = requestVariant;) G% r4 W/ w( @/ ?. e% w
dp2.cArgs = 2; 6 w: @1 c1 R4 l9 n2 A0 G" a# @# }6 j dp2.rgdispidNamedArgs = NULL;! ]- a: L/ S! b/ m6 S" R
dp2.cNamedArgs = 0; / H b9 e$ q& E- ? w9 O7 z; ^9 S; e7 z9 p
var.vt = VT_EMPTY;4 v4 i# |0 Q% \5 w8 Z
, r& T6 r. e! o// Call IDispatch::Invoke() + u7 b& V5 t: D8 S; i# `' K, ?: I. l* A/ f* k
hr = m_pDisp->Invoke(- V4 |0 L) X' T" N1 s7 ^9 U
requestID,' T8 o2 A# n7 d) o# M0 g. C
IID_NULL,0 ~+ A8 N1 k1 T+ E' d
LOCALE_SYSTEM_DEFAULT, - Z8 F. J$ y( B9 ~ DISPATCH_METHOD, ; l0 W' V( L8 \) n, m &dp2, & Z$ ^) I" P" d: q/ E6 q/ z &var,, a; H0 F0 M; Q' U1 j
&ei,% j( H. K/ G' V: m
&uiErr);6 A4 Z4 D4 W5 P6 @ j& S% _
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SysFreeString(topicStr); . q7 y/ B7 S* X% X5 R$ F8 j SysFreeString(itemStr);7 \* o W; D9 k- y
请问该程序是获得extend里面的哪个值？$ W/ \& a: 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？？？？
发表于 2008-11-25 19:37:03
