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) A( ~4 a: M5 q8 N8 yName = (WCHAR *) L"Poke"; 2 \0 W; a( N; [3 i% f* }8 P! i 3 K* C* l1 \# J3 c hr = m_pDisp->GetIDsOfNames (/ O# X- p- O) V7 L( F
IID_NULL, // reserved8 H z+ I' w) s7 y4 \* t1 i8 w
&Name, // Array of names to get IDs for6 F6 @7 ^4 y1 w9 g1 y
1, // # of names in the array& c$ ^. d) D( x! v+ C
LOCALE_SYSTEM_DEFAULT, // System locale, J2 d9 C% ? p
&pokeID); // Array of IDs to fill on output 4 I+ O5 C8 I% @, `1 D0 t( x 3 P7 V/ ~" @9 z# R( n$ T: i' W if (hr)/ n' S, ~* }, N3 w! D7 i
{. O8 t& o' K, `5 U" s
MessageBox ("Get Poke Unsuccessful");% s$ ~; S7 B7 b2 h7 R" {
return; ) b1 g' F" U# G" {2 s } % \" F, V% @: U& c$ k , o1 w+ j# G2 Z# w/**************************传递数据给extend**************************************/- |- ~( B- a* l* y+ i1 v
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 3 p% F, @1 I0 N! |/ c' `/ j3 H1 o" m - M9 z/ S( e* \8 Z! u+ ] valueStr = SysAllocString((WCHAR *) L"1232"); " s' F$ K& _1 I. v6 ]! Z VariantInit(&pokeVariant[0]); 7 v$ i& z) J1 w g& Q- j" u
pokeVariant[0].vt = VT_BSTR; # M; a O- k" C! h! q1 n pokeVariant[0].bstrVal = valueStr;& N: n ]. C" Z7 v% g3 N
9 B- b" r, S; E2 K itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* K8 e# g1 x0 p! p9 W6 R! Z
VariantInit(&pokeVariant[1]); / B- W9 `: C% R& ]$ }2 v# x
pokeVariant[1].vt = VT_BSTR;, I( H0 S; s, ^3 U" `% t, j: S
pokeVariant[1].bstrVal = itemStr; ( D/ V _2 D# \0 x. d! f- a2 v, K 0 [* Y- I* W- }) V: Q topicStr = SysAllocString((WCHAR *) L"system");; v* r1 `, o7 k) p3 n7 `* k4 c8 z
VariantInit(&pokeVariant[2]); ; y! _# r, ] m4 |% w pokeVariant[2].vt = VT_BSTR; 4 `, |; o$ \! R pokeVariant[2].bstrVal = topicStr; . ?, t, A) c0 [$ b1 f! a) R9 d3 Q# h( `: X& ]
// Set the DISPPARAMS structure that holds the variant. 0 g5 Z' l8 ~0 R6 [* c: w; Y: M9 D& R1 l
dp.rgvarg = pokeVariant;0 ^+ Y; A" G% h; e. F, `
dp.cArgs = 3; $ ]4 p3 @; i6 X1 K dp.rgdispidNamedArgs = NULL; $ I! r2 Z' M2 Y2 k dp.cNamedArgs = 0; 4 G6 L- i0 _4 v. F. \6 \ 8 E5 P/ l- x, O' k4 A( k// Call IDispatch::Invoke() 2 L3 h) l6 Q+ L: k9 e# s* q% R ) i; |( y5 A: g% g hr = m_pDisp->Invoke(' m4 I- {% d! R# L
pokeID, 1 J, E" V% O8 a8 H+ [5 _+ L J IID_NULL, & S3 W- n' i) r/ j2 P' r LOCALE_SYSTEM_DEFAULT, & Q. j. E, A& T$ C2 O1 l' w" V DISPATCH_METHOD,* A* v/ o- C, e- k! Z0 w
&dp,1 E8 u4 ?5 _# A" E. W# |
NULL,/ T. ~, D. l: k5 I9 Q+ A7 B' n
&ei,. V+ A4 s9 h" e# d% K- W
&uiErr); 4 k: o- [9 m8 @* [1 O7 ] , |, a# S* E* j0 I SysFreeString(topicStr);6 t2 z/ I$ l& G( K
SysFreeString(itemStr);" j: [) Y" ?/ b0 y. b/ x4 S7 ]5 O4 F$ S
SysFreeString(valueStr);# c O% a5 G* d; N5 e+ { C
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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???0 k6 D% Q8 p8 Q
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???? ' \9 {6 T; ^( c7 O. Q: _! V0 h" }+ t8 K' C
- M- h9 b( S1 k4 s& r$ W9 a# R2.这是request的程序 5 _- M+ L t! W3 Z0 X$ X// Request a value from Extend ! `; |" X D, P; H3 Z//" l8 \( c$ H( I I8 o
// Initialize the variant that will hold the BSTR. Set the variant's$ X, S( ?( P9 _( O1 @7 f) I2 W
// type flag to indicate the fact that this variant holds a BSTR. Place the8 m; A4 F5 L& h. U4 k+ A/ k4 X6 }
// BSTR into the variant structure.5 J/ t! t) i( X M5 L+ \! ?