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:. ~, M2 ~6 ?8 w, q" f9 y8 w( t. |
Name = (WCHAR *) L"Poke"; 8 c# U5 R- O, q4 e4 u 6 `: {! L* Z+ y hr = m_pDisp->GetIDsOfNames ( 6 P# ^7 {( O( X; d IID_NULL, // reserved3 H3 e- {' b$ |. r
&Name, // Array of names to get IDs for 7 X# X- T, _7 C1 M) f ` b 1, // # of names in the array; U, h; r( c" v0 i1 X9 t9 m+ Q
LOCALE_SYSTEM_DEFAULT, // System locale ' x+ |& T# G- d9 T3 h, r- C0 v &pokeID); // Array of IDs to fill on output 2 V) J: Z/ L1 M! i+ z7 S3 O 2 f8 t4 m- z$ ^
if (hr)' L( q. y8 z3 [
{ ; b" v2 W. w6 N% C1 t' w MessageBox ("Get Poke Unsuccessful"); & Y2 w l% H4 o return;4 F/ p! \, o3 c2 j: s" p
} 0 e0 k( }. M% e/ c. h3 W! l# r6 g: I( b4 @9 x
/**************************传递数据给extend**************************************/ 5 B! O6 x! e- {& ?2 A; e% F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); * O: t6 n* H- @2 F$ w2 G8 w J3 n 6 v1 c+ `) ?+ {6 U7 O ` valueStr = SysAllocString((WCHAR *) L"1232"); $ L9 C+ P& Y7 v8 o, G VariantInit(&pokeVariant[0]); % Z9 {- s# P1 U9 o/ T/ ]6 r J) }
pokeVariant[0].vt = VT_BSTR;/ z3 u* r: f5 l
pokeVariant[0].bstrVal = valueStr; : j* D1 A# u" V( Q* v) t) d: x U# W1 J4 R% X' T4 H7 C7 ]8 Z; d2 |+ ]
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); & y/ ^+ [" E- R VariantInit(&pokeVariant[1]); \3 \3 q% _' I' W( @9 B
pokeVariant[1].vt = VT_BSTR;7 D( Z" A5 [- E2 }) z, y
pokeVariant[1].bstrVal = itemStr;1 T$ r8 k3 p* B/ g
$ O& N9 [% W% a# Q topicStr = SysAllocString((WCHAR *) L"system");3 t# o$ x8 \3 [ `& p, w
VariantInit(&pokeVariant[2]); " r8 h( V+ t3 u4 ~6 N/ H D, V2 W
pokeVariant[2].vt = VT_BSTR; , s4 l$ h+ ~& n n j. A pokeVariant[2].bstrVal = topicStr;# n* n! T) S& ], s7 ?
! X- p. h! p' L// Set the DISPPARAMS structure that holds the variant.$ T0 s) l: r2 R, K+ T
* S9 J5 o/ U; I' S dp.rgvarg = pokeVariant; 0 F3 J7 e7 } P$ c1 d7 L) N1 k: k dp.cArgs = 3;1 \/ P7 T5 O9 X4 e9 \
dp.rgdispidNamedArgs = NULL;7 U7 I& Y0 ~0 ?+ b
dp.cNamedArgs = 0; # }! q Q/ v$ q* ~/ m& j) ]: r8 p' ]
// Call IDispatch::Invoke()+ }, a7 C$ X ~) `3 b6 h
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hr = m_pDisp->Invoke(2 J2 a& F0 G* ^9 }3 p
pokeID, , |* h! F4 [/ c IID_NULL,# `( E9 }) x" \& L" U
LOCALE_SYSTEM_DEFAULT,/ `: D# _( x$ v
DISPATCH_METHOD, ( y& _0 }3 h# l. R &dp, $ s4 z3 [7 x7 L5 Y( J i& h NULL,! ^; Q( s4 [) V6 g; _1 N
&ei,& }- I1 G+ B* L; A; B
&uiErr);2 [; f" D. H6 o7 |: ~- F: k: y
( z2 m7 h2 q: m4 v; n. X; h SysFreeString(topicStr); 4 A& w7 a) d, J3 R" Z6 F SysFreeString(itemStr); 2 D, v' _( X% F/ H& U- a SysFreeString(valueStr); 0 m. ~5 N6 S6 z2 b& \" a( D$ |) n) O. s
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 l# z9 K6 `% u/ X A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????; D4 M& e9 a8 j$ Q5 p
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2.这是request的程序 ( j) E W& D$ w4 S: [- N' O// Request a value from Extend% [0 l i& E' j
//6 ^2 Q& B* S. `+ d: z7 K' T
// Initialize the variant that will hold the BSTR. Set the variant's * W4 @! D2 M2 F, h0 E, y// type flag to indicate the fact that this variant holds a BSTR. Place the 8 [3 c7 Z$ e- _) ?' {- e// BSTR into the variant structure. * A9 }5 E- H% `" {2 a" p+ ? $ b2 I$ Y" ]% M/ I2 V3 T2 B" S requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 e( n- k- F+ F: }9 n5 J 6 }* g+ M/ O: F! D _9 e
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); ) b8 o. ~5 e4 e4 A; O @* _ VariantInit(&requestVariant[0]); / C: t# j+ p# e4 L( _ requestVariant[0].vt = VT_BSTR;/ m) z f+ e O$ S6 J; h8 [
requestVariant[0].bstrVal = itemStr;, X: o- t& U8 t& ]8 Z' ]6 C
$ m8 J! Z% U: T/ o6 q" d topicStr = SysAllocString((WCHAR *) L"system");& a5 w0 m5 H A1 S
VariantInit(&requestVariant[1]); / p& v9 S7 G: T( D3 c' R; l requestVariant[1].vt = VT_BSTR; 8 e' x2 B8 f6 v$ X( m& M6 `( B& d requestVariant[1].bstrVal = topicStr;3 w* N; q1 V' B/ B8 b
& |/ q6 M( w4 V7 g* D5 K+ C: Y// Set the DISPPARAMS structure that holds the variant. " e# Z0 }0 t6 F+ E) t6 Z% d9 g0 ?2 c$ J
dp2.rgvarg = requestVariant; 9 R8 i3 V/ C: } dp2.cArgs = 2; 7 C9 l2 Z% c& L0 f5 r1 O i- C dp2.rgdispidNamedArgs = NULL;' f. H* T! z; r3 T" M& T
dp2.cNamedArgs = 0;( ?% y0 O$ X5 y1 U: f6 c
% c6 V! y0 r; G- C3 D' R# C
var.vt = VT_EMPTY;5 G2 T( ?4 m) s; E4 u* H! w5 q9 a