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: 3 B; l" I* b3 P% N8 CName = (WCHAR *) L"Poke"; % a3 `4 g, p6 @* P1 _7 j 4 _% i4 u9 J! \& |' B
hr = m_pDisp->GetIDsOfNames ( 5 ~$ g. E! d4 s( @9 e IID_NULL, // reserved, R: j: V. s8 G! N
&Name, // Array of names to get IDs for 5 K5 V3 O+ S M# U( a1 n! J, r 1, // # of names in the array6 l# Q' `# O5 v% _; Z9 G
LOCALE_SYSTEM_DEFAULT, // System locale 7 R% \, K7 o( H' `1 g- ?( a8 d &pokeID); // Array of IDs to fill on output, U4 v3 C3 F9 Q
f& f. {& q2 Y" `9 R; `- d9 J if (hr) : o1 R5 E2 J0 |* G! ~# } { - t5 t- }3 d' V t! w% G MessageBox ("Get Poke Unsuccessful"); 6 o5 F. k8 G. z# M return; 6 V/ P% T* t& e+ P } 3 b# U+ j0 u/ L+ k& m3 u8 S 4 R. _/ L; W: A9 A, {3 @' }( u; c/**************************传递数据给extend**************************************/ + H0 y# d7 M7 m1 r8 [9 } pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 1 T% c- D, d. [ . y& b9 L1 J y; \1 w# B. @
valueStr = SysAllocString((WCHAR *) L"1232"); ! x2 \/ p4 r4 C5 G. S) d0 [* Q VariantInit(&pokeVariant[0]); 0 S. p6 F! \- t3 X5 s7 o. L; F" W% X
pokeVariant[0].vt = VT_BSTR;6 I! a9 \" T# J3 Z) U# V+ I
pokeVariant[0].bstrVal = valueStr;* c5 P7 s0 J+ i5 \; w3 ~; d7 k. o3 e
+ E, t' @4 f5 ]+ ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. o# M8 T, @0 _- Z0 y7 s
VariantInit(&pokeVariant[1]); 9 k, \- I, y l3 Q6 D7 g
pokeVariant[1].vt = VT_BSTR;8 S9 f9 i M( _! u% d
pokeVariant[1].bstrVal = itemStr; " D3 o+ t& S% N2 e$ m- }% ?# w2 M" R6 O& `
topicStr = SysAllocString((WCHAR *) L"system"); ' l* ^% W# }1 B$ Y VariantInit(&pokeVariant[2]); ; e# g: g+ [) u; }- U3 r1 E pokeVariant[2].vt = VT_BSTR; : u, o% `& d" B+ ?4 p4 S6 g, o pokeVariant[2].bstrVal = topicStr; ; H2 N8 E. I, o- J9 e# g( g- g& \! Z W4 P. y# J9 M
// Set the DISPPARAMS structure that holds the variant.9 G H1 a- P' e3 l1 d! t
8 C, U9 k! B5 L. G7 A- [# M" b+ H dp.rgvarg = pokeVariant;( @9 {. O2 X1 l0 r1 C
dp.cArgs = 3; & t' ~7 J: }( u! b0 f dp.rgdispidNamedArgs = NULL;& L7 Q7 ]! U/ R5 n# C7 S8 q7 V
dp.cNamedArgs = 0; 4 }# I0 s: l' B3 z! N( J# Z2 R- Z- p
// Call IDispatch::Invoke()! h9 I1 a; g" y9 z
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hr = m_pDisp->Invoke( 7 L8 F3 x. c3 [: P2 Z" G9 Y( { pokeID,4 L# L) r4 D+ {% z L
IID_NULL,2 P! h+ Q" `- K! G) I, i% X& G* |1 q
LOCALE_SYSTEM_DEFAULT, 9 C5 J% U. [# L* s$ _) t$ G DISPATCH_METHOD, ( `5 a' p- B, e3 Z! b2 w &dp, 2 a6 t0 O0 B+ p- E$ G: m NULL, 2 P* ?6 n/ B/ v* B) q6 D' D: n% M &ei, & C/ w, k8 S! G' |% L( u. s &uiErr);0 t/ @# y ^( D; R& e# f9 A* Q
- _& \+ e1 n" f6 B3 b SysFreeString(topicStr); ' e- u6 |8 P! Y* @; B; U SysFreeString(itemStr);/ Y/ [- z, e1 w
SysFreeString(valueStr);% U9 \- e; G' [) ~! O/ C& u
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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??? 5 e. I4 X7 c* r; U, _1 c [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????' c* F$ [2 @- k4 z+ j, ~0 }
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) S9 e# |7 @0 @# ~5 |. f2.这是request的程序 ' y% q5 p* }/ U. h! w' h& w5 H// Request a value from Extend1 Q8 x+ F! _& [ h
//& K+ U' K' ~, `3 N) n- J- @
// Initialize the variant that will hold the BSTR. Set the variant's 3 @; s0 m: @% g9 C" H// type flag to indicate the fact that this variant holds a BSTR. Place the+ x4 n( c( G3 s7 t; u
// BSTR into the variant structure.: s& u5 z% `4 n; M) X9 L