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: # r0 E' O' o% e% W2 [, l! |9 }/ \3 uName = (WCHAR *) L"Poke";4 I- @8 I) U+ y7 m% U8 | ^1 @0 c
. v6 A e( R( Z4 `4 T hr = m_pDisp->GetIDsOfNames ( $ c8 f4 `" A7 B IID_NULL, // reserved, _9 l' t+ L& y# O4 c6 J
&Name, // Array of names to get IDs for # z( D5 ?5 G: n/ q/ ^ 1, // # of names in the array/ y* S a! r0 l3 O
LOCALE_SYSTEM_DEFAULT, // System locale " y" O/ A5 @$ i3 ?. e) A/ w0 C$ P &pokeID); // Array of IDs to fill on output 3 p: v/ G) c' l# |' y4 w 1 b0 e, E% B3 q: D! n4 E% n! v
if (hr); Y" g8 V7 p6 S
{ 6 x3 Z n2 W7 C( W" r- L) Y0 o MessageBox ("Get Poke Unsuccessful");. Y, ^3 P7 Z7 A- V
return; 5 b- |: _% h3 I! q }/ M0 r! p/ c2 d* y
1 a! h: Z+ D C2 Z' {( k+ k valueStr = SysAllocString((WCHAR *) L"1232");' Y* S( y7 J4 |) c8 h/ U* u
VariantInit(&pokeVariant[0]); 4 }& n6 [$ E X1 ~, E pokeVariant[0].vt = VT_BSTR;& j( h* x9 b: j9 A
pokeVariant[0].bstrVal = valueStr; 2 w* Z+ M/ A6 _4 J! v0 N; }& K! x7 `: q) n: {5 U# Q; v
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. @9 F& i4 E: D3 `3 {7 }% \6 Q$ b
VariantInit(&pokeVariant[1]); 5 s* k6 |6 x% C. j
pokeVariant[1].vt = VT_BSTR;# g5 D( b' }+ w; v5 z
pokeVariant[1].bstrVal = itemStr; 3 l. M- J" y3 u" o 1 h; f+ V% e/ d topicStr = SysAllocString((WCHAR *) L"system"); 9 U+ q8 b j( l) Q VariantInit(&pokeVariant[2]); ) I# l( q& E$ d% u6 E
pokeVariant[2].vt = VT_BSTR;% i: f0 ^/ W: n" ^3 Q
pokeVariant[2].bstrVal = topicStr;3 M3 ]( U5 D' r9 z
8 f2 T9 a# ~8 E( x; s- B5 r5 E// Set the DISPPARAMS structure that holds the variant.- O5 B4 a1 r3 G! z4 m7 l, t
5 a/ ^8 e; w( N8 y* U( |" S; i/ c
dp.rgvarg = pokeVariant;" @" J' i, D! H: _8 v( M3 n
dp.cArgs = 3;5 J ?# X* R. C! U+ n( U7 Y3 l
dp.rgdispidNamedArgs = NULL; & a- R2 H/ ^3 R, O, w8 v& I. e dp.cNamedArgs = 0;6 Q5 W. Q1 |! c) C7 t6 H; N c
5 t& Z% X9 S& |# T// Call IDispatch::Invoke()- I( i$ P; {; d* c
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hr = m_pDisp->Invoke( 4 N! p, o. p( \1 [& K% J( s& K pokeID, ( R* o$ |1 W- P; k IID_NULL,$ C' P3 l4 W: Q. w: A/ Z
LOCALE_SYSTEM_DEFAULT, 8 P6 P0 \, b. Z) G DISPATCH_METHOD,+ _) p7 j5 Z/ }+ @
&dp,+ M; i# ]5 e w8 h: {& T) v
NULL,% d$ D/ s/ ~$ L
&ei,, G/ {' Z r7 A8 s, v% J
&uiErr);; Y5 R0 `7 ?4 _' U$ ?$ G
2 g$ e1 o" U ~( j* o
SysFreeString(topicStr);1 r( E9 L( ~; k: r* o
SysFreeString(itemStr); ! n$ K& N$ b0 [- _# l SysFreeString(valueStr); 1 @, |+ t# G5 o6 k8 z. \+ _5 h # J' X0 N) A" ^6 ], N) j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??? ' A7 s( [1 ~6 v9 c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???? / o; X( M S' d* y8 o- |7 w& o e% S1 S( O6 | ^
4 j4 s4 c/ {1 A$ e, i* _2.这是request的程序 6 ?7 n6 n0 Q# S: J5 x9 T9 C! V// Request a value from Extend5 ?1 k0 T( L& c+ D) ~" D
// * V2 W9 k3 C( y, K" O// Initialize the variant that will hold the BSTR. Set the variant's" r0 y% _6 O7 X$ P
// type flag to indicate the fact that this variant holds a BSTR. Place the7 T9 M$ A) G6 v7 _2 d4 I0 [6 B
// BSTR into the variant structure. " C; c( ~3 t) b# O9 n1 Z 3 a) _- v7 K0 C7 D. r requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 P8 M0 S: |4 h9 z5 N* d 7 P4 e5 Y ]/ d% ]. n, D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 0 O. i8 U$ G$ P: e" X% V' b" N VariantInit(&requestVariant[0]); 9 i T* W( y0 x( o) h
requestVariant[0].vt = VT_BSTR;. q5 i0 A: l- i% Q3 q% ?
requestVariant[0].bstrVal = itemStr;% ~) j7 F" \: G% v% y0 u/ f& ]. |