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: / V U+ Y5 z! G' M8 BName = (WCHAR *) L"Poke"; 0 \$ |7 U5 y* O2 [3 ]( b& u: m( y) s# e $ {5 t Y2 k5 {2 e$ w hr = m_pDisp->GetIDsOfNames (' L: c; b5 ]2 \- w
IID_NULL, // reserved ! u d2 A0 O$ b! r: N &Name, // Array of names to get IDs for5 L1 O" ?* p2 x( n. t. A' U
1, // # of names in the array * S2 B/ P" m9 D( Z( r6 X S) U LOCALE_SYSTEM_DEFAULT, // System locale ; Z, b# ]6 X$ f& x9 {, _8 Y$ d &pokeID); // Array of IDs to fill on output 9 G! Q$ s: h1 j8 Y7 C/ \ 9 |* A4 s; q" g: ?
if (hr)7 h; s+ q4 e: G3 u. U& y
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MessageBox ("Get Poke Unsuccessful"); $ v5 u9 L; q5 W" B/ P& T( S return;# L& `( t9 c) V3 g5 r1 v, ]
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/**************************传递数据给extend**************************************/6 T7 R- z7 W( x$ V* w/ |
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: ~$ `# j6 ?' c; M+ {2 D0 {* Q: X
4 ?. }; |: z. H$ n0 J8 k- [( q valueStr = SysAllocString((WCHAR *) L"1232");3 T6 x5 u& Q* r. I
VariantInit(&pokeVariant[0]); 0 t3 f7 k3 y" s1 c: x
pokeVariant[0].vt = VT_BSTR;/ _7 n+ ]1 Z2 r) l0 n7 z' i2 n
pokeVariant[0].bstrVal = valueStr;( a/ R3 j; I$ B# r" [% F. l7 G+ y6 m* U7 G
* a, Q. ~8 W5 J( R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); " M8 ]. K2 l: s! d& O VariantInit(&pokeVariant[1]); : G6 d9 J5 ~ u) m
pokeVariant[1].vt = VT_BSTR;5 N4 l; {4 c' J- M; {
pokeVariant[1].bstrVal = itemStr; ! W$ G8 N: B( H) z7 z, ?; `' n* j. m* j' S$ \
topicStr = SysAllocString((WCHAR *) L"system");7 l: ?( _" q: F$ ~
VariantInit(&pokeVariant[2]); 0 w. K3 C5 _. n2 x: L4 h) _
pokeVariant[2].vt = VT_BSTR;1 v' O$ w' S! W+ V' B5 l9 f' o
pokeVariant[2].bstrVal = topicStr;# J5 H) p2 E5 k6 x. z& X$ n9 d) v
) U7 Y/ T1 d: c* E5 \# C. e! v! D// Set the DISPPARAMS structure that holds the variant." i) F& u, D% _3 i- `
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dp.rgvarg = pokeVariant; 7 R" M9 p9 A$ H$ e dp.cArgs = 3;' @7 B, T3 U' V% |: Y
dp.rgdispidNamedArgs = NULL;7 ^7 c7 E& q' Q
dp.cNamedArgs = 0; ) K/ B. \) J; C& P3 A7 Y5 i; l , W# \, @' D: d- ?% H/ J1 g1 M- ?// Call IDispatch::Invoke()/ R; U; |0 I! l: a6 ?
- ] v' v2 f4 x, @* d, g hr = m_pDisp->Invoke( ! |3 l( B0 @# u' z8 F I pokeID,$ E7 G, B5 p; U1 V- f& x9 a* M
IID_NULL,+ l, O; `3 k2 A- p
LOCALE_SYSTEM_DEFAULT, % @) V% `0 T) i a& c+ X DISPATCH_METHOD, ) G4 W9 b% n, k* B i. } &dp, # d5 L4 {$ a; ?5 x/ T NULL, / A3 } ]$ w( ]! F &ei,8 ~/ j3 C, o, M+ w
&uiErr);; {- {' _+ O& o- m4 f0 g
3 v9 C- g5 p# K- [ SysFreeString(topicStr);* o5 M- l. w) j- A; ]
SysFreeString(itemStr);' u5 J$ [% ]9 N
SysFreeString(valueStr); + E+ I x! t0 x2 D1 ?2 u A 3 W* _, k$ r0 Z2 S: x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???% e: E, C: _5 j! \, I3 G5 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???? 7 @! {6 P& I! o9 g# }4 \# E( F( Z) L- g2 ]6 i- d8 N
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2.这是request的程序4 Z9 g* o2 M& O$ U7 P
// Request a value from Extend , H5 Y' V3 g% b7 g& K" Q, v% b//) Z: B5 M5 Q9 f
// Initialize the variant that will hold the BSTR. Set the variant's # e( W# P- E( H: I7 Z4 t' ^) D// type flag to indicate the fact that this variant holds a BSTR. Place the 2 n) u' l3 Y! f( R6 ~; O// BSTR into the variant structure.( e) [% A, x2 J1 D0 t3 L
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);' x3 t& Z, A* h' q4 K! ?
" j9 g1 r3 i7 @9 u6 Q3 K5 | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ ~, N8 T9 w9 M1 g7 V. M3 Z9 H
VariantInit(&requestVariant[0]); 1 Q, c2 a" h5 P; B requestVariant[0].vt = VT_BSTR; $ x" K0 T0 \" ~/ R1 A6 o requestVariant[0].bstrVal = itemStr;" O( u5 {) `0 C! @! o
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topicStr = SysAllocString((WCHAR *) L"system"); 7 t" b) i9 r/ I, A/ P* v# w. q2 x" N VariantInit(&requestVariant[1]); / T/ @6 I. q8 n requestVariant[1].vt = VT_BSTR; 0 Q' @$ }! g/ W4 x6 i; b0 [- T( q( ` requestVariant[1].bstrVal = topicStr; ; v" s7 X7 v8 B! ^7 i. H4 Y 8 d# p2 D c4 }. `' b. _// Set the DISPPARAMS structure that holds the variant./ [( y3 D" T8 C" @' M! g
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dp2.rgvarg = requestVariant; + K/ h! M& |# o( @( b/ r, G8 |& a dp2.cArgs = 2;! G9 d) b _' r N# j; ^
dp2.rgdispidNamedArgs = NULL;, U- `7 z# h" q9 `0 {$ d& Z
dp2.cNamedArgs = 0; 6 b3 j: ~0 v, N& @" }0 x8 s " D+ G2 o& Q- p var.vt = VT_EMPTY;8 Y7 K: M t* B3 Y% G5 X
) l, q7 F1 n2 h- V1 U4 ~/ f// Call IDispatch::Invoke()6 c" ]7 H' j) t' a2 w+ {
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hr = m_pDisp->Invoke( 0 E' Z- @8 E8 D$ }' O' K requestID, R1 J h* `8 r( C; \ IID_NULL, 3 e2 i0 R/ m- W# v; K7 U$ F+ k* G LOCALE_SYSTEM_DEFAULT,1 Z7 ^6 w* C' Z8 T3 j% N
DISPATCH_METHOD, ( I. N: i' x! a% [2 O& v" i &dp2, 1 v; X5 D& @) Q- L4 T0 c &var,6 J! j) O' M5 J& H8 f
&ei, 5 K9 P( v! H! ~, j0 a% s &uiErr); % b6 v& q1 u n8 x: n3 u+ n# Q8 b7 J/ a9 g* j" l/ q. [
SysFreeString(topicStr); 8 X5 t1 n0 N8 S( E P! n# B9 ^* ` SysFreeString(itemStr);7 V/ V* {9 n' R7 v2 c
请问该程序是获得extend里面的哪个值?% ~, ]% I5 o E+ e
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????