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: & X4 J/ y6 i; I5 G* n D; kName = (WCHAR *) L"Poke";: Q+ ?6 }8 w; X A, ^- `0 s
+ E7 ^; A: g3 {, ?! O hr = m_pDisp->GetIDsOfNames ( - D, _) B4 @% R$ D: j( K IID_NULL, // reserved: R% K% g; P8 M2 g% T
&Name, // Array of names to get IDs for ) H5 I" F+ e5 k8 I* j 1, // # of names in the array; N% L0 x" G. ]# K' `' F- T# ~! _
LOCALE_SYSTEM_DEFAULT, // System locale( r' J+ l- j% [# P5 R( ^$ x
&pokeID); // Array of IDs to fill on output 4 I4 G) Q0 s$ h, k4 C 5 V1 C: R- }, v: S4 | if (hr)9 m3 n6 W" a# B& v% o h
{ ?& o. o0 I: S MessageBox ("Get Poke Unsuccessful");/ I# _3 [1 v! w, D6 x4 X* K: n
return; $ M4 ^; z6 Z; z- E }; @: |$ p. i! G- F' b9 x7 Y
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/**************************传递数据给extend**************************************/. e0 @4 ^1 U# d5 i; w
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);6 W0 P3 T4 z6 t% W. J/ w6 c2 E
! h$ W* z0 u! e7 I6 {$ d) @4 p5 k valueStr = SysAllocString((WCHAR *) L"1232");+ X% o, q1 v- x( h$ ]
VariantInit(&pokeVariant[0]); $ L% O, p5 t# E3 P8 Z% G pokeVariant[0].vt = VT_BSTR;- z' H5 j, R1 X4 ^
pokeVariant[0].bstrVal = valueStr;! C2 Y5 `& K& C7 Y7 {# S9 W
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");! Z9 k. q) }! l! u- _/ s! w; `' S
VariantInit(&pokeVariant[1]); ) u. G: B4 t$ y) E. n: W
pokeVariant[1].vt = VT_BSTR;; Q3 q1 ]' g) m( n4 q) ~# K: ~
pokeVariant[1].bstrVal = itemStr;" O1 F* K! D f; x4 d' f
& D9 ?5 I% p7 X+ L topicStr = SysAllocString((WCHAR *) L"system");9 y& r R$ F/ N- d7 e9 f/ ~; j, I
VariantInit(&pokeVariant[2]); / s4 A/ A# y* }% x
pokeVariant[2].vt = VT_BSTR; - z. l9 U: V- e K( h+ s0 K pokeVariant[2].bstrVal = topicStr; - T4 r& y& n" L8 R3 c% E' y; g0 G$ p) U+ ?( f6 U/ `: |9 g. g
// Set the DISPPARAMS structure that holds the variant.4 \. D! L. J {6 O' g: u
- h9 g0 b& z- D+ W dp.rgvarg = pokeVariant;3 X: [, i7 L) c1 n/ q
dp.cArgs = 3; 5 W3 ^/ d* Q) N* N dp.rgdispidNamedArgs = NULL; J7 m3 h: a8 N% P% S, {* y) a dp.cNamedArgs = 0; ; F- J* L0 J, V+ K9 b$ S, U+ W: _6 p. c, k5 ~" h
// Call IDispatch::Invoke() ; ?" p! n+ z% x7 f6 o) b3 e- P $ U" D! ^' x/ g- A0 L& l hr = m_pDisp->Invoke( $ W4 G$ L! v- }- x. W) [( c pokeID, 0 j0 E# Y4 |- g% z1 U. d$ O& B. H IID_NULL, " r X3 C d( J% y7 n3 s+ b- `9 \ LOCALE_SYSTEM_DEFAULT, % z1 w& q9 O( I' [- C8 D DISPATCH_METHOD,) ~+ K9 v a) l
&dp,) ?; R! d+ }* I6 E: \5 J5 I
NULL, 9 r/ }! K& a! L# h- G( \ &ei,5 c, Z( q& c/ }' G
&uiErr); 3 `) D* Q8 Z6 {6 _9 H: s) l9 b) s) I) B5 ~% d
SysFreeString(topicStr);5 s6 e/ j) d7 |3 n+ Q& H' m
SysFreeString(itemStr); * v* c, H& w' o. N7 M9 k' h$ D SysFreeString(valueStr);( {! \, S3 T, f! z
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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???+ M0 }! u5 [2 K: X
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???? 5 u3 q9 X" U+ R% U# b . }9 p/ X: k0 Z3 C7 y; [ 7 b) f5 v& Q- f( h: ~, I2.这是request的程序+ ?4 A j: J# k- T5 v, X4 Z
// Request a value from Extend9 z) Z" s& I2 g; C
//: j2 M/ b8 f2 N! a( n1 d
// Initialize the variant that will hold the BSTR. Set the variant's # ]* _% @' j0 d0 G2 H1 S// type flag to indicate the fact that this variant holds a BSTR. Place the) Q0 | N6 B4 U, K: d: w$ w
// BSTR into the variant structure.6 J3 @1 a/ J, @* ~
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);) k6 {' Z, E& N
7 f7 ]1 d2 j' V' U0 F+ c$ ^. X3 X itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 4 X7 V6 d; I! |3 | VariantInit(&requestVariant[0]); 4 k. Q( Q+ d1 b) I5 |- m( u) n: o
requestVariant[0].vt = VT_BSTR; ( Y& K3 v8 R9 ?' I9 g. g requestVariant[0].bstrVal = itemStr;% c5 p, r# O4 {- R/ F8 M