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: 2 x6 E5 V7 f" S0 n8 v+ @. MName = (WCHAR *) L"Poke"; ( \# {4 f; R) u0 V. T" [ 5 v1 N. O" V, [- H* R
hr = m_pDisp->GetIDsOfNames ( 2 N. ~- s% D. g% l- K. j' @ IID_NULL, // reserved$ G' @! p9 {- b
&Name, // Array of names to get IDs for ; H! T- G9 a0 X) T9 G. p9 R 1, // # of names in the array ' K: P! [: H2 ?8 j LOCALE_SYSTEM_DEFAULT, // System locale : p) p; D! k* c5 m2 e& t &pokeID); // Array of IDs to fill on output8 h- F, H3 K4 _
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if (hr) / Y2 e/ x' P6 m7 X/ H# c- T% J" [ { - c, N4 W2 |7 P+ d( S6 K& f3 W MessageBox ("Get Poke Unsuccessful");1 \7 Z% g/ p5 z; Y" C4 B+ g: J
return; % S0 l! o, J% X# x% O. ` } , }6 n* i7 S6 I5 {6 k$ b" u1 N- G1 A. d7 @6 {" V
/**************************传递数据给extend**************************************/ 6 A: M9 \0 Z# r& H! c. h# A pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); D6 h9 N+ y j" S7 H5 N
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valueStr = SysAllocString((WCHAR *) L"1232"); - M, J- O- ~2 g' ] VariantInit(&pokeVariant[0]); ; A' x' H3 p( `! i4 F" z! } E# z pokeVariant[0].vt = VT_BSTR; ! f3 {4 X1 u$ }) X# z5 |' V: s/ J1 T pokeVariant[0].bstrVal = valueStr;% t+ R: X$ a: F9 u0 V
7 B) \7 ?, X* r* ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" h6 \# ^# N1 S* m
VariantInit(&pokeVariant[1]); * m* `9 M) V6 E6 z9 v$ _ pokeVariant[1].vt = VT_BSTR; ' _9 s1 | \- G0 O! |2 u& p pokeVariant[1].bstrVal = itemStr;8 R3 `# F3 g' v9 @/ F# i. X
8 m& S5 \/ L3 t* E topicStr = SysAllocString((WCHAR *) L"system");4 k7 [- L6 S9 u3 w# v
VariantInit(&pokeVariant[2]); 2 p3 k: }% O- D1 N @( c- t pokeVariant[2].vt = VT_BSTR;# _: \" Y) r& s
pokeVariant[2].bstrVal = topicStr;( c4 b; U/ F/ v2 y
8 m" F: C8 r1 ]/ U( z// Set the DISPPARAMS structure that holds the variant. 6 @9 A9 y. ^) S) l) O4 q. `- f7 V1 p 4 o! I+ [( Y. e* ]) J% ? dp.rgvarg = pokeVariant; $ w( F4 `8 e) R% v dp.cArgs = 3;% |9 @; d% J& @% v' S
dp.rgdispidNamedArgs = NULL;) t2 q% p1 ?) {" m% C( N- o0 M
dp.cNamedArgs = 0; ! L: N: C( |& M2 p9 E' D0 ] ; p5 [" k! l* Y- g$ N. i: H z// Call IDispatch::Invoke()7 y1 d. P7 r" L o
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hr = m_pDisp->Invoke( 5 R2 Q) o+ b( l* c% N% I% J pokeID,+ y4 p+ _& \+ z1 \# i
IID_NULL, # Y3 m3 p4 @0 o1 O LOCALE_SYSTEM_DEFAULT, $ t5 |& }! e3 L+ y: y DISPATCH_METHOD,/ d0 ^" E9 y8 n# d( b# M
&dp,/ i k0 ?! p) G8 B4 M
NULL,: ?" Y; u' Z4 a1 Z) f4 d4 }
&ei,* c) ^, |+ K! v4 O/ }
&uiErr);+ N1 r# ]1 {3 z6 S6 E
7 e: d8 k$ A9 F* Y/ _1 `/ P SysFreeString(topicStr);6 ]; Z9 K% J, Q* a! S4 z) s
SysFreeString(itemStr);3 _8 i. ]* A, `& q+ P
SysFreeString(valueStr); . X$ y- ^' z6 q4 A* Y1 s , e6 A* c z0 o+ j+ }; _/ d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???( | j! ?9 J6 v6 n
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????4 ?1 ^1 {2 ]7 t/ A
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4 j0 S& N( J+ \ |4 ?) t2.这是request的程序 $ w( d% o$ b2 r% o A2 z# X// Request a value from Extend5 l! Y% ?& E- a% j# K+ R
//4 O$ r) T# I' h# N; s6 z
// Initialize the variant that will hold the BSTR. Set the variant's" j# d( X5 t* ^; k
// type flag to indicate the fact that this variant holds a BSTR. Place the) ?. ~! Z5 E0 a9 d7 K
// BSTR into the variant structure.# n" G# t G O2 p! h) R, U
) {# `" T& [# N- _6 Q; R! z requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% @) L( W7 @% A5 [3 N) I/ `& q) N
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& o, K+ I+ `) d2 D
VariantInit(&requestVariant[0]); ' z( A0 A, C( c% l# a% W' J: e requestVariant[0].vt = VT_BSTR;/ D. A2 W+ K" i; r: E
requestVariant[0].bstrVal = itemStr;- q: s8 t# s: i) g6 {
! M5 Q: E- p, T! E topicStr = SysAllocString((WCHAR *) L"system"); " ?4 @! ?; ~! @0 H$ G VariantInit(&requestVariant[1]); 3 u. t+ l$ N8 t4 x
requestVariant[1].vt = VT_BSTR; 9 X# G; \4 I7 c* Z3 m* K requestVariant[1].bstrVal = topicStr;& d. j* o% W* b- y3 b
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// Set the DISPPARAMS structure that holds the variant. # V" G. C- h/ G/ _ / t* X4 `5 E3 J# u. r, L# \ dp2.rgvarg = requestVariant; " {+ w, \9 N( {) b2 N: R2 u dp2.cArgs = 2; 0 y j( j. R: c2 g7 s; o+ J: O dp2.rgdispidNamedArgs = NULL; ' _- Y, d2 \# Q' C& B/ u dp2.cNamedArgs = 0; 1 x9 e- P, Z2 ^: i ; ~2 D. K U. Q" I' f var.vt = VT_EMPTY; 5 B3 {3 x2 t1 o; k% o ( S1 Z$ j, I$ M% t' ~// Call IDispatch::Invoke() & r% T5 V; c* W$ O( @" W 9 Q9 Q: j5 w4 h1 S- P6 H hr = m_pDisp->Invoke( j, {& p, m9 e9 Q/ h; D$ p% S
requestID,2 e/ w+ A- h5 L R: o6 Y3 m
IID_NULL, * G1 c6 p0 \2 ~, `5 q: R LOCALE_SYSTEM_DEFAULT,9 u4 y! j4 z. v# [
DISPATCH_METHOD,) ?4 p( h* H) \1 e; b, F
&dp2,! k' V' Z; t! A+ W9 g8 ^$ M
&var, / ]) m$ ~. I; M5 | &ei,3 W& x3 t& D4 M
&uiErr); U E R8 E. j M. `9 r% A) m4 J- a: m# z
SysFreeString(topicStr); : V# J, L+ u, P' k* |- a( X SysFreeString(itemStr); ! s3 c% v1 `/ n0 u) k请问该程序是获得extend里面的哪个值? ( v) T0 i+ G. Q' n) T$ s! M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????