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:) G* B& u' T" s& Z ^4 r# G5 @) N, `
Name = (WCHAR *) L"Poke";! t) u6 ?+ o4 P$ c
s& A* X' i) ~ hr = m_pDisp->GetIDsOfNames (% f, C9 P1 _* ]5 s# J) y
IID_NULL, // reserved ; M o( W/ c5 n) l: F &Name, // Array of names to get IDs for ) P1 f( e8 r" b 1, // # of names in the array 1 a: B& H& u6 @/ ~1 K LOCALE_SYSTEM_DEFAULT, // System locale - u- u/ v' B2 `6 Q &pokeID); // Array of IDs to fill on output / H( R2 A$ H# R/ s 9 O" S4 b3 N* B% w5 u if (hr) 3 W' D, ?; W- o( a7 u { {5 ]7 s. _4 n( x% ^& h3 F MessageBox ("Get Poke Unsuccessful");" g! K: E* u: n; E
return; 7 w* Z. U8 R/ d% ]+ u' g } . F$ {1 ?5 x: x- I4 u) R% n' O7 ]$ J# F% t0 M+ ^) L, n1 H
/**************************传递数据给extend**************************************/ * J- f# J4 r2 K$ f0 U; W- y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 8 Y/ n& W0 i v. F4 O; W6 B; ]7 j ! `* V) T7 a }% Z; _$ W0 {& @- `
valueStr = SysAllocString((WCHAR *) L"1232");0 z( f4 B+ N( |" r+ V( z
VariantInit(&pokeVariant[0]); - v8 i9 R3 h4 B9 ^2 F8 V: T [ pokeVariant[0].vt = VT_BSTR;9 j, D2 S5 n7 a4 Q# |) F& s
pokeVariant[0].bstrVal = valueStr; 9 T$ j: z! E' R2 D ! U2 N, Q7 j& I% g, U" y% P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# q, n; \4 H. V4 ^
VariantInit(&pokeVariant[1]); + n2 ?# |$ g$ w1 |/ B- T# R9 M3 l
pokeVariant[1].vt = VT_BSTR;+ K+ I5 i, M$ A$ B# {8 I# O
pokeVariant[1].bstrVal = itemStr; ( p0 I+ o @' ~4 P d& m$ p. X/ R! V* V; [ topicStr = SysAllocString((WCHAR *) L"system"); Q5 A9 }! O" r1 V3 `9 ^
VariantInit(&pokeVariant[2]); $ w! z; `9 y4 t& ^ X) e7 |4 q pokeVariant[2].vt = VT_BSTR;, W* [' f% j, s5 E
pokeVariant[2].bstrVal = topicStr;8 u* H k3 [+ n* ^9 p
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// Set the DISPPARAMS structure that holds the variant. 0 S" h8 o9 S' N1 E2 ^( U 7 Z3 s9 p$ p5 e$ I z8 g dp.rgvarg = pokeVariant;9 H+ g8 ]6 f9 W
dp.cArgs = 3; ; N/ k# x3 x# i8 ~ dp.rgdispidNamedArgs = NULL; . P- g- j" b5 ] dp.cNamedArgs = 0; - W& ?7 G6 ?9 L& U* _# e+ F( M$ [+ m, h8 y. q0 i6 r. `
// Call IDispatch::Invoke() " `# a: S7 k4 k/ x8 U6 ?2 [8 v% t; O
hr = m_pDisp->Invoke(% L+ j+ ` d: A7 u# o
pokeID,# l6 C, n! s3 j1 _% B
IID_NULL,, p+ X. n6 S3 P% U; D. V
LOCALE_SYSTEM_DEFAULT,, G9 g ~3 Y2 U, o f! b) D9 }
DISPATCH_METHOD, D* C! Q1 j* v1 K
&dp, ; Q& F9 K5 `7 P! d0 t NULL, $ o G5 ]9 v+ I1 Y &ei,; r q& c% F) {1 Y1 U7 o5 K
&uiErr); 5 m! s) E; S5 [8 v " I: |5 c4 ^+ l6 A2 s( Q- W6 r9 T! O" e SysFreeString(topicStr); ) I3 Y$ ~9 I9 p, S1 m SysFreeString(itemStr); 7 x: F9 r+ B9 h3 w0 A SysFreeString(valueStr);: ^. S9 t, Y0 \9 j, V) a) y
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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???' ~$ v, K; e) U1 x" Q. E) y* A9 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????. d; q) U& B: q% \* s" _
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: c3 f! F1 N$ O" p0 `2.这是request的程序 5 _- A C2 x, I' S! b// Request a value from Extend 2 K8 i" g- G$ f9 k0 c: b6 p9 A, X//; ?" s0 v9 }2 q
// Initialize the variant that will hold the BSTR. Set the variant's$ t5 U/ Z. Y! D0 B
// type flag to indicate the fact that this variant holds a BSTR. Place the, I: v8 z" d* L$ k- d+ d$ H7 ?
// BSTR into the variant structure. 1 G% D* q" C' \3 T' o; H- j0 A" Q) s3 O
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); . m) f* b" O2 ]% k( [& U 2 i) @$ q, a9 I itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");3 ~ |6 ^9 m# _& [. h
VariantInit(&requestVariant[0]); ; ?% w1 m% u4 h8 B) K/ S requestVariant[0].vt = VT_BSTR;) g6 e8 v- J. e% \4 D6 W- n
requestVariant[0].bstrVal = itemStr; 0 R6 H4 v+ Z; j1 f) I8 I: A # M+ B8 w2 j( M3 Y7 y6 f0 m$ a topicStr = SysAllocString((WCHAR *) L"system"); - \( W* L) F. y4 o' {- s VariantInit(&requestVariant[1]); 0 r3 f( L/ T! i+ C- Z( J" `+ H& V
requestVariant[1].vt = VT_BSTR; 4 R( C0 O" f7 | requestVariant[1].bstrVal = topicStr; T3 {' N! ]3 }
- ?+ s- ]/ C" |) M9 S9 g/ i, M8 G- b// Set the DISPPARAMS structure that holds the variant.; B- c; [' [: a- E
+ J3 q, q5 ^ t. @$ x4 `
dp2.rgvarg = requestVariant;: M& U6 c& P# m: z n
dp2.cArgs = 2;+ S6 ?8 X o, e/ T, e
dp2.rgdispidNamedArgs = NULL;- Y1 I$ z F) U* Y$ W8 m0 S
dp2.cNamedArgs = 0; 4 V L9 m! Q: M 9 [: n2 {* N- ^' U var.vt = VT_EMPTY; $ g6 d3 X% p+ O4 c: r) P) e) k % ?, |1 p/ \/ c6 m0 z8 t# Z// Call IDispatch::Invoke()2 K* V( f) H$ P
% i4 S; g) w* m' J5 o3 t hr = m_pDisp->Invoke(9 l0 i1 F9 o( n
requestID, " G0 a+ G; m& Y; D9 x IID_NULL, 5 z, N1 {# `; Q; c LOCALE_SYSTEM_DEFAULT, 7 @) O4 J" U3 _ DISPATCH_METHOD,/ W/ Z f% V. s# z
&dp2,% O) {& r! Y4 f8 Y" e0 O2 x
&var,1 B/ i) k- q' ~8 b
&ei, + f1 k! O! l) p. _0 N &uiErr);. ?* p' m, H; F( ?6 a
1 D8 O ^+ B# z% o& C2 w4 o SysFreeString(topicStr); ' G& W. W0 K5 Z2 m3 o/ I SysFreeString(itemStr); 5 H; u; D b p& ]请问该程序是获得extend里面的哪个值?4 |& B( L9 {) K' l8 F. N
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????