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 D( L0 U3 y0 A9 w4 M @
Name = (WCHAR *) L"Poke";# F% `& o4 }# p. M9 z/ B# X
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hr = m_pDisp->GetIDsOfNames ( 8 s' V! H& V: d6 t IID_NULL, // reserved 0 A& A; c! H" Y8 l2 s &Name, // Array of names to get IDs for 2 @$ L2 a* I3 k( j3 b* @( T3 m 1, // # of names in the array0 v' k) d& W& u6 \, C
LOCALE_SYSTEM_DEFAULT, // System locale 2 X# L: f' G4 _8 b0 ~) N1 ]' P { &pokeID); // Array of IDs to fill on output, d( _. L. M4 a. K% _0 X- r
$ W. @& \8 S) @. M if (hr) + B u w; @4 J/ M, |) I { - ?! L u9 t# ^4 y- F MessageBox ("Get Poke Unsuccessful");+ D4 \6 V( @' l7 u0 w; `5 \6 s
return; w/ z- h1 D: \1 s" V }/ i$ ~8 G1 S1 H0 I& ~4 C8 I
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/**************************传递数据给extend**************************************/ 1 V6 y' |7 [1 y" p1 y1 o# i y/ p pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # u' _, |6 K0 Z! P' X" F& F ) N5 r2 t" P# b/ W( U
valueStr = SysAllocString((WCHAR *) L"1232"); 5 R5 g3 J* ^8 d$ u$ @3 ] VariantInit(&pokeVariant[0]); * @( B# B6 G$ l q. P% @9 `
pokeVariant[0].vt = VT_BSTR; 1 S' a j4 ?) K# V) s% ?8 | pokeVariant[0].bstrVal = valueStr; / B% P* R1 V- W# I 0 R0 J) R2 \& i6 g, Z4 k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: M1 `' B$ H+ K: n' `7 R: N' a
VariantInit(&pokeVariant[1]); 2 K; S$ E0 [! M0 b w pokeVariant[1].vt = VT_BSTR;, S% E$ s9 G8 ]" j [
pokeVariant[1].bstrVal = itemStr; 3 _/ Y3 m* I* Z# U4 V 0 ]! Y* I( M& Y topicStr = SysAllocString((WCHAR *) L"system");# W1 d- [7 `( B
VariantInit(&pokeVariant[2]); 7 h& f) _) O8 P3 O" z! F% [9 O: C pokeVariant[2].vt = VT_BSTR;. I, b2 Z6 _' [# Z" z) s. w
pokeVariant[2].bstrVal = topicStr; 1 B9 y# M6 v9 G0 y 8 ?5 Y9 w! r$ L0 U7 i$ f! D// Set the DISPPARAMS structure that holds the variant.3 a0 \/ `4 p- s; J9 t
. z2 j- M, j( c) ] dp.rgvarg = pokeVariant;+ T* q2 S# V' h0 y" b. u3 V' _
dp.cArgs = 3; ' h9 x! j9 U0 o7 H; k4 S dp.rgdispidNamedArgs = NULL;& r4 z6 Z9 K- X
dp.cNamedArgs = 0;) t- n D+ q; @
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// Call IDispatch::Invoke() . r! C7 T( C- X0 L& j 2 o7 T! J7 b+ P hr = m_pDisp->Invoke( 2 Q3 v3 P! n0 X r9 n pokeID,$ z& s& E5 c0 \$ g* p% ?- E7 U- F2 c
IID_NULL,, ?2 S/ i- \1 Q U+ s. d+ C
LOCALE_SYSTEM_DEFAULT,* n) Y+ K! r8 E) W
DISPATCH_METHOD,6 v" u. u5 K; v o9 W* S3 f
&dp,# e1 m3 G& {/ U$ `
NULL, % c% a+ ?) t( O &ei,4 Y" v$ J# c4 h8 }* l$ ~
&uiErr); 1 ]. K6 `, Z; d6 g+ l/ j 7 S* \( [8 M2 g ^$ _" i% m SysFreeString(topicStr);* n* E- K) Z2 g+ N' D# g' o
SysFreeString(itemStr);/ H: }1 {. Y' s! i
SysFreeString(valueStr);3 L' }& j* P6 r. L