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:# c: E/ J0 E r" y3 s& g; g
Name = (WCHAR *) L"Poke";# G7 z8 A! \+ }% Q4 m
" Z3 [: Z8 K6 [9 f' ^( I" ] hr = m_pDisp->GetIDsOfNames ( 5 i$ A! d: e; n( m$ R& @+ _' d IID_NULL, // reserved3 `, j( C: @; ]3 D- p
&Name, // Array of names to get IDs for 7 c' n! ]! E) [( _ 1, // # of names in the array 6 W# e) d( s8 G LOCALE_SYSTEM_DEFAULT, // System locale9 {9 x& `: t( \3 V$ l" B
&pokeID); // Array of IDs to fill on output1 _" u& j- X. ?% F. x y
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if (hr)) J; j2 R, @ s' C7 G
{ 0 {( K! m2 H$ @- C- _ MessageBox ("Get Poke Unsuccessful");1 M' ^* X5 \" e8 k$ g* W8 ?/ L
return;" E9 t/ }! D# L8 n1 }0 ~
} # r, G8 ^: \2 H 6 V4 l e2 H3 ~+ G/**************************传递数据给extend**************************************/6 \# b/ s( W6 b% ?8 d
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' j. u t6 e9 D/ |- c2 l; X+ o
. E; Q7 K" d% ^! L4 ? valueStr = SysAllocString((WCHAR *) L"1232");2 e" g% u. V- \8 S; G& E+ Z* O
VariantInit(&pokeVariant[0]); 6 v( D3 n5 r- u4 a! m
pokeVariant[0].vt = VT_BSTR; 5 m: x% e# z% J/ G pokeVariant[0].bstrVal = valueStr;2 |6 u) O/ G4 Q+ e4 l$ ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 I- h! V* I% m9 {
VariantInit(&pokeVariant[1]); 4 t6 Z( m$ y( v; `
pokeVariant[1].vt = VT_BSTR; * e2 _2 Z N5 ?& W pokeVariant[1].bstrVal = itemStr; 6 A' [+ y: u, F ! j4 W3 n+ F" Q& h8 D2 N- J! o topicStr = SysAllocString((WCHAR *) L"system"); 4 I+ s3 x! R- E& ]+ s9 n VariantInit(&pokeVariant[2]); ( H& |4 ]2 U1 ?5 J, c5 k N pokeVariant[2].vt = VT_BSTR;6 p2 ~' F$ y V# ~! @
pokeVariant[2].bstrVal = topicStr; 7 ~' F& n, k( ^+ a# ~+ \* n4 ~% p. A
// Set the DISPPARAMS structure that holds the variant./ A1 W# y E& `# S6 Z* ?5 ]4 u0 J
! m* ]( M8 K" n2 B Q2 d dp.rgvarg = pokeVariant;. s# q& F8 h+ N" m
dp.cArgs = 3;8 U/ C0 x6 E5 ^8 i0 o8 i6 }! [1 n$ r
dp.rgdispidNamedArgs = NULL;' L& ^/ _5 C+ k/ y. s5 E
dp.cNamedArgs = 0;% w1 M- F5 L' X$ M3 ?. U
+ q$ [* J6 `8 [7 r$ H// Call IDispatch::Invoke() * x1 k- c) y. x0 I4 G ! l. _+ ~$ H/ b hr = m_pDisp->Invoke( ' H9 M) u4 n2 Z, x2 d pokeID,% Q( h8 J8 c3 [2 D* Q
IID_NULL, X [7 a; a) ^4 o LOCALE_SYSTEM_DEFAULT, ' C. w4 {6 D' o! f, W* x DISPATCH_METHOD, 7 J' u9 k- C) ?% X0 M &dp,7 e7 _% q# i* s1 v% l
NULL,( D* U7 J+ n3 c1 t/ S
&ei, 4 W; @3 `, l6 n- s! r* B &uiErr);8 N' ]" c, @% ?9 P0 ]! c, `) ?) d
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SysFreeString(topicStr);: d/ A$ V4 r! _
SysFreeString(itemStr); 7 P0 U- N# u! l SysFreeString(valueStr);3 A# }3 J2 l+ i7 ^$ }
' G, V5 [3 W$ Q/ Y% O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???& x2 N% h O: a
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????8 F' |: x6 w1 E1 e
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2.这是request的程序 ' v" u. @# d8 T1 L& X K. H// Request a value from Extend - v7 v# j8 ]! W9 T//, e9 Z- G: W" p# s3 T: K
// Initialize the variant that will hold the BSTR. Set the variant's( @* S7 W7 Q1 V" v7 j4 m c
// type flag to indicate the fact that this variant holds a BSTR. Place the* O! ]: ~8 n, H: v. R4 i+ `
// BSTR into the variant structure. 4 b; l o' {/ w! G5 A 2 W# t2 d3 ]8 J+ N( O. H requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 [+ P* {0 o5 ]4 t! N