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:* `* }# I" y3 y4 y
Name = (WCHAR *) L"Poke"; 6 y& t# _- N z4 D3 `9 P ( Q* }) K- h! j, C/ H( x( Z* Z7 h6 l7 m hr = m_pDisp->GetIDsOfNames () e, J6 b+ Q/ v4 e' y9 `9 ~; s# b
IID_NULL, // reserved5 c y* l6 Y# @
&Name, // Array of names to get IDs for. N& z1 q% @2 m$ H" p V$ Q, h
1, // # of names in the array/ o* B! ?& p/ r- d. U0 s& v
LOCALE_SYSTEM_DEFAULT, // System locale ; Q$ I# y+ F+ y z& { &pokeID); // Array of IDs to fill on output 7 r: \# M0 A& S . m7 w2 {3 r6 i
if (hr)4 W- k+ ]9 j B
{ $ Y+ f' g+ [' G: I+ r P8 p MessageBox ("Get Poke Unsuccessful"); & X2 j/ l* @8 g! ]3 ` return;: \& f9 p' q5 q3 P" W) R
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/**************************传递数据给extend**************************************/3 ~7 o& B+ u- Q8 l' |/ n
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 w: s5 m9 N2 M' s. F! x
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valueStr = SysAllocString((WCHAR *) L"1232");6 w( M7 E+ v6 O# t% B N9 p
VariantInit(&pokeVariant[0]); # `7 h9 k# p& q" Y pokeVariant[0].vt = VT_BSTR; # N9 L$ _. F6 F4 Z5 R pokeVariant[0].bstrVal = valueStr;( u$ q2 M6 i0 k8 C
! _# j( ?5 V0 W | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); + g: [6 n; e. D$ x) m7 N2 j0 O VariantInit(&pokeVariant[1]); 2 U4 L8 [; V0 }+ y2 R+ `
pokeVariant[1].vt = VT_BSTR;' _5 @7 {, `4 i I7 f
pokeVariant[1].bstrVal = itemStr; ( l7 U1 p, V4 i7 ^% b* M! _ 4 ?3 H4 t2 W2 {5 } topicStr = SysAllocString((WCHAR *) L"system"); 7 _1 n) Y1 B/ C4 v* U! I9 t, |# [ VariantInit(&pokeVariant[2]); " T0 [& G) A- L A0 P
pokeVariant[2].vt = VT_BSTR;5 z$ N" N# n# X4 A/ D9 b8 i
pokeVariant[2].bstrVal = topicStr; . C5 K# L" P" b& O: W, Z ( W* V( V ~5 A' n// Set the DISPPARAMS structure that holds the variant. + Y* E! C. ~; v9 v; `, s( T7 n( y% b& [
dp.rgvarg = pokeVariant;, o9 \8 P' {9 C, q, l
dp.cArgs = 3; 1 O. R* c u7 x; y dp.rgdispidNamedArgs = NULL;9 O% U, Y3 r, _" x/ l# y
dp.cNamedArgs = 0;2 g& E$ h2 S& e" B$ M7 v
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// Call IDispatch::Invoke()6 m7 i* b2 _) R; y; s
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hr = m_pDisp->Invoke( ) ~2 O: q& r9 X( H pokeID, % i0 Y& ^( Q: u+ v IID_NULL,0 {/ R+ \& q, g& b. l' i
LOCALE_SYSTEM_DEFAULT, # H; |& F; d, O0 a DISPATCH_METHOD,) y9 j$ _% q) E$ v3 R, e
&dp, & ^* D- A9 }) ~ NULL,- E7 P( C2 L' `1 m) M" l
&ei,% |3 ]8 S+ H, K
&uiErr);6 W# c$ ?% F" K! m
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SysFreeString(topicStr); ; M1 d5 r* U" t6 u* P$ [" b SysFreeString(itemStr);- V: y- F- t3 E' c5 x6 w+ `+ r
SysFreeString(valueStr);, a( H) K& Y* ]$ U% v `1 S! y* X
5 k% N o8 L+ [5 e. r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??? , } o! A, y# @& l( S% Z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???? : ^. F. U9 K3 h$ @% p1 s 7 R' u+ |; w. r+ P" J [2 q7 k2 e% }" Z
2.这是request的程序 ' u2 v/ F" J: Y// Request a value from Extend+ G3 Y! R9 J V( c
// ; K, H: Z l. x0 F// Initialize the variant that will hold the BSTR. Set the variant's$ ~ \$ D, l: }! N2 W) r5 I
// type flag to indicate the fact that this variant holds a BSTR. Place the5 @8 W9 [- i& O- g/ h! s
// BSTR into the variant structure. 1 W' V- B5 e- ^" o6 }* P* ^' E" F# K5 L( Y# W. s& c
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);" \2 A/ t1 r0 _" x# E8 A
1 S0 S1 M; g i- G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); % t; }" s1 Q) b4 E, J$ i( m: h# x' x VariantInit(&requestVariant[0]); 3 ]5 M6 @. {! w" v2 e requestVariant[0].vt = VT_BSTR; + S: _8 Z8 ?; m1 @ requestVariant[0].bstrVal = itemStr;6 i8 j6 _5 x0 n( `; P
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topicStr = SysAllocString((WCHAR *) L"system");' h7 n7 h0 H% d
VariantInit(&requestVariant[1]); 7 k1 U% j, g) D4 R0 Q! C6 V requestVariant[1].vt = VT_BSTR;( H, O: p0 ]" t+ W t
requestVariant[1].bstrVal = topicStr;: d' @- K: `5 F0 f6 M: F
- O! }3 Q8 b ~ i, M+ n// Set the DISPPARAMS structure that holds the variant. 4 m2 {4 }/ d$ {) {& O' Q: {7 i5 ^2 {; M+ G5 s( ?
dp2.rgvarg = requestVariant; ! M4 Z# m" y4 q; A! [7 t& k+ c dp2.cArgs = 2; / z, A8 T( s7 q* V( e3 K0 L dp2.rgdispidNamedArgs = NULL; 1 [" s3 \: E4 ~ dp2.cNamedArgs = 0;' L4 \6 `- D. h& w- s$ \9 z( z
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var.vt = VT_EMPTY;3 V: W i8 ~! i1 A5 [5 o+ L9 ~5 U' H
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// Call IDispatch::Invoke() # O. W1 o0 a9 g# f. k7 ^! B1 `. f
hr = m_pDisp->Invoke( d' D( P$ R" z+ s& @0 z
requestID, " t) p, e) f8 u" H1 Z4 H IID_NULL,) H+ ^' m0 u4 h+ C8 s
LOCALE_SYSTEM_DEFAULT, / j! F' z2 I- ]2 ^+ [ DISPATCH_METHOD, ! v' r+ _% Z0 f$ c0 }8 S- K4 f @ &dp2, : @2 W* [% u' h+ D' h" |3 S& s &var,. |, D! t! D' ?' h
&ei, 0 O8 v6 ]* E+ s" U# J. O &uiErr);+ o8 l+ J, H+ y! W- g2 B' h" }# P
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SysFreeString(topicStr);7 p4 R0 l$ o$ Z8 x- w9 m" ^6 Z% L
SysFreeString(itemStr); & U6 \# K- `4 ]2 r# m3 h请问该程序是获得extend里面的哪个值? ' U/ y+ w5 r( [5 r7 l! f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????