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:5 q0 ^9 A3 _$ L% Q- ^9 u. W: _
Name = (WCHAR *) L"Poke";5 e" x! L5 @, n! s N9 f
; `* y% W M+ A hr = m_pDisp->GetIDsOfNames (7 b; h# E$ u7 { Y4 u! o
IID_NULL, // reserved9 G- P6 `; ~# U
&Name, // Array of names to get IDs for( ^/ q1 F ]1 s
1, // # of names in the array2 X% [- i& [7 [9 J2 o
LOCALE_SYSTEM_DEFAULT, // System locale' e X y6 r8 b: j9 D$ x% D& v
&pokeID); // Array of IDs to fill on output3 _1 n; F* k2 ^/ {2 F9 ?
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if (hr)5 u a) F! x4 `% x7 Y3 \5 \
{6 _: |2 E$ F5 Z
MessageBox ("Get Poke Unsuccessful"); 1 J" j% A% L9 p- [. b3 c( }$ d return;% @0 a, A W' {7 n3 V! J
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0 O9 N8 T+ M" y, G2 u9 i% ?* \, C/**************************传递数据给extend**************************************/ # m8 J( ?* Z0 Q, h$ Y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ( k8 g* n/ g; @$ o5 J3 R ; ?' M/ u7 F* u; X. n* K% E valueStr = SysAllocString((WCHAR *) L"1232");$ J% q u( z( D0 p4 Z
VariantInit(&pokeVariant[0]); ( P M. r% C- m
pokeVariant[0].vt = VT_BSTR;8 j7 T/ s/ B+ f# Y8 e; ?
pokeVariant[0].bstrVal = valueStr;0 a8 Y6 x& M" [; d% G6 K- ?$ l: }; @
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . x5 x+ g' G9 b& c VariantInit(&pokeVariant[1]); % e0 u4 ?1 g7 S0 E8 E/ Z pokeVariant[1].vt = VT_BSTR; 4 L& Q- k+ ^( c- b* h f8 S( F pokeVariant[1].bstrVal = itemStr; , t6 f1 V( @6 m- ~# b5 U& t- K* f( [7 M5 e
topicStr = SysAllocString((WCHAR *) L"system"); - z: e! @3 n- @6 G' U VariantInit(&pokeVariant[2]); , n) K! J q* `, X, @
pokeVariant[2].vt = VT_BSTR;7 A3 ^) ^% I. e2 p
pokeVariant[2].bstrVal = topicStr;. P& b# m& ]" U
8 j6 q& l$ C& [# s// Set the DISPPARAMS structure that holds the variant. 0 v0 x. |, h* x3 N$ q: j: X& S% B! a# Y E5 j8 C
dp.rgvarg = pokeVariant;- k# _, L+ i& P3 F0 Y6 N0 C* {& n
dp.cArgs = 3; $ C' I+ @: t" }% ` dp.rgdispidNamedArgs = NULL; ! ]- @% B9 ?$ W% ~4 f! W dp.cNamedArgs = 0;& v$ |8 P* i% o; y0 O" S" t
2 M' T( S8 H* p) x/ u+ J% u/ L// Call IDispatch::Invoke() / f; {" F8 h9 g; E* j( K- N/ W ; c: g/ U6 [; o7 V4 [ hr = m_pDisp->Invoke( 9 q: ?& [& _! Y6 Q) L' g; X( | pokeID,: q. [6 v* |. x
IID_NULL," T& |6 i- _; E/ V: }9 u1 F, k
LOCALE_SYSTEM_DEFAULT,( ]) v3 I6 ~/ n+ o- t/ u0 b
DISPATCH_METHOD, / ]: H- U: g- C6 V &dp,: {, {: L g# G' [
NULL,( M- O1 E' `0 R
&ei,4 x+ j R+ {/ `( \% c X8 U) x
&uiErr);" h2 \4 q* G0 C
( N6 @4 z* J! l% O; r! L SysFreeString(topicStr); $ I( o! P2 b* o$ h4 D w SysFreeString(itemStr); 0 v: `7 d8 r( r2 Z9 Z) _7 ^ SysFreeString(valueStr); % |! ?' `& d k; @0 C* c Y2 X# d% _; G) H% Y
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???! S& \ S9 t4 S) G# |8 d d
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???? & k' X1 P* f" X2 M9 o' i- b* {2 _ 4 i% {) @) `% p% \2 m# L- W / q5 F& y0 R5 {2.这是request的程序& c5 j; e8 B" z0 w1 |
// Request a value from Extend $ r) c: A6 H% L: O4 [# c5 f//0 i4 A# q4 C/ r6 Y$ S
// Initialize the variant that will hold the BSTR. Set the variant's $ f$ }+ s2 f* e// type flag to indicate the fact that this variant holds a BSTR. Place the4 J1 w4 U* L; X K- \
// BSTR into the variant structure.% _) ~5 t) u, ?; o/ c" V1 o