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: j F$ L+ z9 J% VName = (WCHAR *) L"Poke";3 T* I* N1 f- `3 L! C! H3 r
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hr = m_pDisp->GetIDsOfNames ( ( w+ ?0 n. a6 S/ c( q1 F9 O IID_NULL, // reserved & F' h7 I% q. p5 y &Name, // Array of names to get IDs for" G A5 v- {: i7 M i- _- h
1, // # of names in the array1 |6 u/ T1 O- q3 P
LOCALE_SYSTEM_DEFAULT, // System locale , W* X; H( V) F' M+ S5 Z% d &pokeID); // Array of IDs to fill on output1 L0 \5 {2 C9 a; |4 a, p0 B
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if (hr)! Q. K, ^( R) E1 p0 R! q9 H
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MessageBox ("Get Poke Unsuccessful");* t4 H3 ]3 t9 ]5 J% E/ m/ P
return; , h( L7 L& |$ Q& l( c } ; n" F1 [4 Y% V7 Q0 r9 O+ c# Y ) D) Y& ^+ t2 M: R l+ R; C5 }/**************************传递数据给extend**************************************/, e2 }% x/ ~" o4 G f% e
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);/ o8 i+ Y2 }4 P% `5 }$ I
+ D1 I# Q/ T- N5 d9 h& a& j valueStr = SysAllocString((WCHAR *) L"1232"); + F; F( ?# {; _ K8 L# A( e0 N VariantInit(&pokeVariant[0]); ) z1 Q" u8 n) y
pokeVariant[0].vt = VT_BSTR;& J. ^3 h7 Q- n3 P5 z% x9 e* u
pokeVariant[0].bstrVal = valueStr;- I1 z; s2 w. x# y2 L* ^
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 f/ z" g ~" C- b/ M* O* g2 F0 d
VariantInit(&pokeVariant[1]); 8 X/ Y1 T% K& N2 v# F+ V% C
pokeVariant[1].vt = VT_BSTR;2 ?" b- N3 C0 E6 \* S8 O
pokeVariant[1].bstrVal = itemStr;0 g1 [3 O$ L+ Q
0 d9 m+ D' q W: V6 r1 a7 @! m" J topicStr = SysAllocString((WCHAR *) L"system");$ ` H$ B; u/ _# L6 H4 v, K, E
VariantInit(&pokeVariant[2]); 7 x; K. y* K: W pokeVariant[2].vt = VT_BSTR;. d Z) [- }- d" F$ U, b
pokeVariant[2].bstrVal = topicStr; ; J8 p, K" s; F# h* p. V4 o$ f: P9 S/ z p4 Z& [
// Set the DISPPARAMS structure that holds the variant. - t2 |0 S3 i' q2 h8 R$ n' S5 p* x8 C. O" z- D+ D
dp.rgvarg = pokeVariant;6 ?* M/ a8 @! l( z& j; T
dp.cArgs = 3; 3 v4 S O5 Q& M* u dp.rgdispidNamedArgs = NULL;2 W8 N M8 D( F8 ?
dp.cNamedArgs = 0;) P' q' b4 C; D; _& W# R+ ^$ X
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// Call IDispatch::Invoke()$ q7 }7 b% s! \& E! Q9 Z5 F
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hr = m_pDisp->Invoke( * ]0 U- B: s+ R+ G; W) j pokeID, ; }( J0 R& v$ O IID_NULL, l9 c; @% s$ H( X
LOCALE_SYSTEM_DEFAULT, l' H, ~$ d; l6 Q
DISPATCH_METHOD,! q, [5 C: S$ I/ X' v6 a9 I" ]0 ~
&dp,. f; k/ c- _5 z- W- t; `
NULL,8 e0 w; r( c2 q
&ei, 4 `% C2 f" B5 o! i$ m: P% p5 D3 Z &uiErr);" Y4 @7 n0 U( C- u# n# V1 P. U3 n
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SysFreeString(topicStr); / i7 y) M3 |0 | SysFreeString(itemStr); ' p+ [$ b! ? I$ ?, h$ x/ {+ N* R SysFreeString(valueStr);% E/ b0 k2 C( `1 I3 ]
5 y# G1 q9 [* E; {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???$ m& ]( \6 A) Z5 K
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???? , r# X% s4 S& G$ I4 q0 S; x " z6 l" V9 N, _% t8 G; o ) g" i9 ~) z a5 p% b2.这是request的程序6 I! C0 o" T$ v. N5 x! |
// Request a value from Extend ; w3 D; X" J: h% H# a' D//& m3 O! @% N& F( q( I# p7 X
// Initialize the variant that will hold the BSTR. Set the variant's* T. C; P1 T# ]) i1 P
// type flag to indicate the fact that this variant holds a BSTR. Place the. N, Y9 t: J8 B, c' H) X
// BSTR into the variant structure.8 p$ a+ I U1 p. Q7 r