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) {; v% UName = (WCHAR *) L"Poke"; e" P' T5 o" s
3 U* v2 E5 r7 Y2 j3 j hr = m_pDisp->GetIDsOfNames (7 Y- ^, n% f% Y; J S; J; M
IID_NULL, // reserved ! `! K6 l+ B* d &Name, // Array of names to get IDs for8 d& q4 P$ S2 }/ P9 W/ \
1, // # of names in the array) j& g* ?' P7 q1 M4 O
LOCALE_SYSTEM_DEFAULT, // System locale ! n* G' A3 j$ C, w1 B& { &pokeID); // Array of IDs to fill on output 8 W3 p7 M2 J, z" W7 V& i, ] 0 O3 Z$ W- H, }, P& H5 ^ M: ~ if (hr)8 ^' ^, d( Z. L& d% N% f7 v+ {
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MessageBox ("Get Poke Unsuccessful"); 3 t! ?& {2 p- d! s T" O7 S- Z return; S5 @( x. y8 z9 ^: I/ c
} 6 m1 Y; j; X' ^ ) |1 M' B) v4 K* z7 Y7 b8 z; J2 t/**************************传递数据给extend**************************************/& l8 I4 a0 Y/ F {; ]: p' {
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 ~' P9 s) b" t- k6 E
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valueStr = SysAllocString((WCHAR *) L"1232"); 4 v3 Q5 B5 a9 Y, J VariantInit(&pokeVariant[0]); ! H* L7 I3 ?4 d! P& C4 X6 Y$ Z pokeVariant[0].vt = VT_BSTR; $ |* O* l% h1 s" H pokeVariant[0].bstrVal = valueStr;& r+ M* A+ l6 C! b& O( w
& Z4 b( P* v/ n. ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ o2 h6 X6 {6 O( b0 q3 q. `( e( h
VariantInit(&pokeVariant[1]); ) H1 F, ]. \" c" H! G pokeVariant[1].vt = VT_BSTR; 3 O. R, A& g! u0 l( W; a/ u; X pokeVariant[1].bstrVal = itemStr; ( H. @; N; ?1 b3 G0 g 5 K* I/ @; u% F, _6 u3 d) n) z topicStr = SysAllocString((WCHAR *) L"system"); ( c/ B2 N8 G8 {6 x* E VariantInit(&pokeVariant[2]); 6 _; K$ O5 \2 }' v$ R" c) Q
pokeVariant[2].vt = VT_BSTR; . d1 v& \/ W+ D0 C* [. s2 F! K pokeVariant[2].bstrVal = topicStr; 0 V$ D% x3 _- b# C% u f! ]2 U2 w' ^; H1 \# {8 O9 W
// Set the DISPPARAMS structure that holds the variant. " A$ O1 R. h9 v v3 \7 ~- s7 U# Z- C' A5 B+ C
dp.rgvarg = pokeVariant;/ Q& t8 @) F6 i$ z
dp.cArgs = 3; 3 U G& `2 b% u1 \' u# @ dp.rgdispidNamedArgs = NULL; 3 Y" Z5 c4 q$ o8 G' n dp.cNamedArgs = 0;, s( }3 V, Z( K( m7 \
) ^3 n" g3 G5 d m2 k8 `7 q// Call IDispatch::Invoke()+ b9 k4 \" y; d9 V+ ^4 k
& N+ S% W& [) o1 ` hr = m_pDisp->Invoke( % z4 H( B" M9 e pokeID,( V% J- S" S6 Y9 _
IID_NULL,' ?/ y1 J* k8 j \1 ~2 ]
LOCALE_SYSTEM_DEFAULT, 3 k! p! w/ D( k! r( [$ I* ] DISPATCH_METHOD,) y. n e; b [* D1 o# b
&dp, * m5 T; p7 T J( X/ W5 l$ d NULL, ! a! Z) K; u. n0 _- s7 Y &ei," `. _: K2 L- J4 J: z; R
&uiErr); 0 \+ ?( V4 R5 u$ M ; a( V- B: C- R$ g5 J' F/ F SysFreeString(topicStr);/ d: |, C; r: w7 p. v' a
SysFreeString(itemStr); 5 j% \/ W: {9 u SysFreeString(valueStr);+ _! u2 |8 c4 T
6 ^0 B. c P3 Y9 N- i" v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???! V Z- G+ d/ O4 G. B4 g
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????& G* b1 M) f+ O/ O# _5 d6 u
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2.这是request的程序! G U: D9 e; ~4 k9 h
// Request a value from Extend' p$ f" b% ?" ~* e
// & @9 I& O6 ^! A+ }. y0 T// Initialize the variant that will hold the BSTR. Set the variant's6 j! F; g9 R1 m' N
// type flag to indicate the fact that this variant holds a BSTR. Place the$ J7 i- e; f5 w3 Q
// BSTR into the variant structure. ; Q6 [2 `& v, L. X' Z U) ~ 0 x) c# [9 |! ^* w% f# w requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); , }" s5 A" a1 q! p8 m ! ~: l! X1 o+ U
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 V7 C* j; y1 i; T: P+ e
VariantInit(&requestVariant[0]); . S4 X* N6 ]& j. o. h3 m( E requestVariant[0].vt = VT_BSTR; 7 m( O; @+ c' c Z requestVariant[0].bstrVal = itemStr; 2 t" x& m. L- S# I' f% i1 | I+ X; j0 d/ i1 U5 z$ k9 ?
topicStr = SysAllocString((WCHAR *) L"system");' A G/ W7 M+ c7 X
VariantInit(&requestVariant[1]); ) V I0 K" O9 L3 W5 ]0 q2 e requestVariant[1].vt = VT_BSTR;. @& p8 v% n0 H& n
requestVariant[1].bstrVal = topicStr; ' Y0 V) D" d7 P0 H8 P! c+ @8 L& z% b- d+ L
// Set the DISPPARAMS structure that holds the variant., Q% Q ~9 u) Y, Y8 b9 N9 V
: U# P8 n; G6 f5 H3 O" j6 @8 W# u dp2.rgvarg = requestVariant; X2 {4 r" A9 M% n) p
dp2.cArgs = 2;* p" [) D4 O! X& X" S
dp2.rgdispidNamedArgs = NULL; ) A6 A1 y$ `( z8 Q dp2.cNamedArgs = 0;! H& e/ M* L; n5 z( {4 J! f, w1 @
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var.vt = VT_EMPTY; * X% }) X; j. r8 Q6 s! e ' q% Y+ n+ O' Z" B# O// Call IDispatch::Invoke() # R% p* h& F+ h; A e( m: V! j + L7 F8 |! B) }6 _# t% u \ hr = m_pDisp->Invoke( # l g( i8 V% x+ P- m; m/ H$ R requestID, 5 D* h4 c9 q" f/ e IID_NULL,1 e# \7 B L+ x& A' V0 w; f7 _
LOCALE_SYSTEM_DEFAULT, 0 L2 X; F, `6 g" T) _( i4 f DISPATCH_METHOD,( x4 f5 o0 C5 s2 \. T1 a
&dp2, 5 r! L0 K( I9 j9 F &var, - P. U, ~4 c- k &ei,: n& B% V: L1 @" f
&uiErr);' [. Y# e. d Q T6 ]8 i' o+ |* [ k
& ?/ I. G: g5 F$ [8 c6 X" Z- \( j; q SysFreeString(topicStr);5 |5 N, Q5 s- D2 q3 r
SysFreeString(itemStr);: b1 A* f0 h' r E) L% k
请问该程序是获得extend里面的哪个值? $ o. H- f) N5 U& C1 J7 e4 A如果我希望获得extend程序里面的某个变量的数值,那个c++程序应该如何实现????