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: 1 C9 K( _- T, [( U9 h& }" KName = (WCHAR *) L"Poke"; / w v0 T8 |, Z4 y * O. U) ?) n6 t8 b/ b2 d0 v# i
hr = m_pDisp->GetIDsOfNames (. x/ j0 `( p, A
IID_NULL, // reserved " q2 g' i- H- L( S &Name, // Array of names to get IDs for ( p6 S+ j+ T5 m% k) }1 t 1, // # of names in the array & m3 d1 c' c6 g S LOCALE_SYSTEM_DEFAULT, // System locale: j4 x# K9 u! b& Q0 A S
&pokeID); // Array of IDs to fill on output 9 |. u: c9 p8 T; ~ o1 {1 ^2 a; M2 n; q
if (hr) S1 v( W, c8 B0 s7 G% j& U: K
{ % f9 ~# |, a' Y' q MessageBox ("Get Poke Unsuccessful"); ) e6 Z0 O1 c4 U6 d return; # F) |1 Q1 q2 J- j } 2 N: D/ p$ O( k! I0 D( G) ? ) Y* D& h% M z( _/ m/**************************传递数据给extend**************************************/ : ]% y* U9 N0 U1 ?9 p pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 4 F8 J0 }/ B7 C4 E0 U ! W6 I Y1 R3 C; S: O0 X. P
valueStr = SysAllocString((WCHAR *) L"1232");1 }% J* @/ @. J; u
VariantInit(&pokeVariant[0]); , r( o3 R) B0 p+ B" K5 y9 N& W pokeVariant[0].vt = VT_BSTR; $ a6 I! C' `0 c9 o7 } pokeVariant[0].bstrVal = valueStr; + A+ p4 s) J n 8 V h) K* J$ p. R) q6 Z2 D itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ ~" U2 u3 I* d2 U& q
VariantInit(&pokeVariant[1]); ( L" p5 t# E5 t! e0 O( t* f
pokeVariant[1].vt = VT_BSTR;# V0 `( u) o2 U0 ~5 {
pokeVariant[1].bstrVal = itemStr; . B; \* y* A2 K* J/ s; Z8 |( L9 P9 s: F/ B6 O, G3 N
topicStr = SysAllocString((WCHAR *) L"system");) G2 f6 o4 x4 \# J6 Q L u
VariantInit(&pokeVariant[2]); 3 S( b: z, R8 i, d5 Y
pokeVariant[2].vt = VT_BSTR; * ~/ z6 o- ~5 m, S5 ]2 @0 O, h pokeVariant[2].bstrVal = topicStr; Q& x, R; K+ t2 U* z+ i
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// Set the DISPPARAMS structure that holds the variant. W2 L2 x; V9 c% Y* D! P, V/ W7 W
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dp.rgvarg = pokeVariant;7 _+ x; M4 g; t6 C' A" u
dp.cArgs = 3; $ A2 I/ i% R& G: U dp.rgdispidNamedArgs = NULL;( d: D2 C* W* Z( T1 k
dp.cNamedArgs = 0;; t* j/ h- y3 r$ g# f5 i
+ S0 K4 R" S. J// Call IDispatch::Invoke()5 P4 \. e; ?; I% C0 E) v5 w$ T
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hr = m_pDisp->Invoke(. R3 J! [/ H5 Z5 Q$ V7 C
pokeID,3 J# X4 Y4 a+ f0 d7 _+ T
IID_NULL, - I& O+ y" D& x1 u9 n: Z, q! a3 w3 } LOCALE_SYSTEM_DEFAULT, 7 ` x5 |' G3 l* k$ h DISPATCH_METHOD,# D" i: {+ _3 d2 L4 T7 Q! e9 h' b
&dp,; D8 t# I7 y: O2 z
NULL, 6 U: p' \5 K3 h( K: o0 G" ~& t &ei, 8 V; F7 ?1 y1 c8 |% ^# g &uiErr); * I) |$ M( v% B9 |0 H) K/ t: o1 \5 E: b( x
SysFreeString(topicStr);/ S1 n* o: e0 b
SysFreeString(itemStr); / i4 F5 h! p9 T* d9 }/ d ] SysFreeString(valueStr); {8 \2 |% s. O0 y2 C3 c3 A
; J% F2 c* d$ Y3 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??? ! {6 U# ^9 b. N. U; l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????; E; n z4 o& E. i" P, E* t- I
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' _% m3 \: Y9 e/ i; D+ o( ]* {2.这是request的程序3 U: K Z0 r9 z k* |6 b& Q4 L# `
// Request a value from Extend+ F1 [- n- N. }- `
//( f# a0 b. b2 g7 [) C4 U! t2 o4 M
// Initialize the variant that will hold the BSTR. Set the variant's # G* u% Z- B( }6 V; [& x// type flag to indicate the fact that this variant holds a BSTR. Place the 1 b! q& _- n& g9 W// BSTR into the variant structure.3 x `. I- N) N& e