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:" E. ~$ ~! i, F- W- J8 l
Name = (WCHAR *) L"Poke";! f" Q6 K/ o' \& f% S, }
1 `. k( g# w7 {7 }/ Q hr = m_pDisp->GetIDsOfNames ( 7 U* q, \1 T( r+ u [2 R IID_NULL, // reserved6 m6 ?" c( ^+ \; h# N D
&Name, // Array of names to get IDs for $ o6 M N" F1 F 1, // # of names in the array$ N% L' a8 D1 E& d# c. H; A% I3 y
LOCALE_SYSTEM_DEFAULT, // System locale 6 U1 g; b2 k- r6 v' U+ F/ n" M, O &pokeID); // Array of IDs to fill on output % C5 l& s; f5 |8 ~8 }- ^ 3 C# V! q- N; H+ I, q/ O% ?7 J9 n if (hr) 0 P' s2 S# |( a% ]1 }# c) R { ) ?: T2 } h; _! {/ T3 J2 w MessageBox ("Get Poke Unsuccessful"); / \: r6 _) \. X$ g: I9 t) l0 c return;8 s( @1 N1 ^, n! h
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/**************************传递数据给extend**************************************/ 0 `/ p: T1 j; p# x0 W) g pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" h8 g: H7 ?0 b) w3 w' {
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valueStr = SysAllocString((WCHAR *) L"1232"); ( ^3 V i" o/ y" B; Z VariantInit(&pokeVariant[0]); ) ^6 e0 Q/ P0 O/ Y* k
pokeVariant[0].vt = VT_BSTR;, N \- F. h2 x6 C4 L; `* x5 j
pokeVariant[0].bstrVal = valueStr;% v, P5 P2 O9 D8 s$ \) K! ` l: }
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: Z% [7 m, W0 w
VariantInit(&pokeVariant[1]); 1 c" W5 M& u& s( _/ {* K- v
pokeVariant[1].vt = VT_BSTR; ) v- h7 T; V$ p e pokeVariant[1].bstrVal = itemStr; . @) d( c# g+ @( _, B0 b0 C# V) k" L: K3 n! P; e
topicStr = SysAllocString((WCHAR *) L"system");# R0 w k' _/ e3 P; H
VariantInit(&pokeVariant[2]); 3 K* z# ~- ~& a9 y5 U pokeVariant[2].vt = VT_BSTR;# y- S2 B. e R& I& H
pokeVariant[2].bstrVal = topicStr; % L4 P. w: @" w+ E& V4 G7 X 4 Z( b m/ o9 [// Set the DISPPARAMS structure that holds the variant. 7 m/ y8 K0 j; Y1 C1 L* j3 t/ ] ) U9 {4 f/ p/ ^2 k" h dp.rgvarg = pokeVariant;: |) \+ T1 a- A. j0 o
dp.cArgs = 3;( J/ X6 L1 l* K) A% |7 I
dp.rgdispidNamedArgs = NULL; 5 E9 p9 V# u C9 C dp.cNamedArgs = 0;, u/ ]9 F+ R& b. t
8 ]# f1 g: n' c' p' 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???5 l5 S2 M( i& T" D
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????% T( b' v n, K8 Z9 ?4 ]" a
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2.这是request的程序( ^' |% P9 _6 H0 G0 a7 H9 u
// Request a value from Extend, O3 N- l. V' L b
// ! L& l. X# [' J4 i' m$ S, A2 E, Z* g// Initialize the variant that will hold the BSTR. Set the variant's6 Y( d5 P" D. C" D" g
// type flag to indicate the fact that this variant holds a BSTR. Place the ( `' v I/ B% o7 I// BSTR into the variant structure.8 S! n8 a' E- R7 Y) m; p
1 G5 t$ F8 n( F' F8 U1 | requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 4 \) ]( `3 q, F8 z" K ; }# ]" I y+ `% v/ A8 Y9 W itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - }! A9 a: _$ ?% H' m6 e$ Z VariantInit(&requestVariant[0]); 0 q3 h2 B& {7 ^6 O; r
requestVariant[0].vt = VT_BSTR;6 D6 V8 e# `, l, \ a! U4 P U
requestVariant[0].bstrVal = itemStr;* ~- @! O) p1 L7 Z; [
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topicStr = SysAllocString((WCHAR *) L"system");! U# y9 e6 G4 a9 M% X2 y5 f
VariantInit(&requestVariant[1]); ( ?& t) M+ }7 i. e; e( S- _5 h' o2 Y2 t requestVariant[1].vt = VT_BSTR;8 f8 d" U8 u8 v6 V1 ^) a. i2 J
requestVariant[1].bstrVal = topicStr;2 D1 p$ b( g7 B7 l! q1 H3 g; n
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// Set the DISPPARAMS structure that holds the variant.+ b3 M* ~: J+ Q5 i; m
8 L0 b1 |( T) k2 _% r dp2.rgvarg = requestVariant;5 W; ~; q) Y o9 v( a
dp2.cArgs = 2;# x6 O9 L f4 ?' e$ R4 p
dp2.rgdispidNamedArgs = NULL;6 N$ _" j$ x+ p
dp2.cNamedArgs = 0; ! y; Q. S( j) U* D$ i( ^) r5 U5 Z1 Z2 J+ s
var.vt = VT_EMPTY;3 h! g" T9 ]7 z0 M) O' i3 {; i7 r