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：: `" P( t( B, z$ ?
Name = (WCHAR *) L"Poke";9 l$ w/ d* ~( v
2 b" f5 X3 f+ x/ `) o/ g" x: j) P# ? hr = m_pDisp->GetIDsOfNames ( W* v3 F/ [- C5 g. H/ \+ B' j IID_NULL, // reserved, ~4 e0 Z" [. L7 d3 o% a! F3 z
&Name, // Array of names to get IDs for 1 {4 ? b" c. T8 n- ^, i, J 1, // # of names in the array! T2 t! R; H( z* x& H. T
LOCALE_SYSTEM_DEFAULT, // System locale1 ^" {$ F& {' l" O
&pokeID); // Array of IDs to fill on output ; s; N+ v. @( B0 ?" @& n , L0 u6 d( C Y$ x( }
if (hr) & f' J) p+ ~% c. x { " W) r1 {$ c' I% r ?' ^ MessageBox ("Get Poke Unsuccessful"); - M, {6 p8 d3 K return; + \+ g: f7 O9 `/ l- { } $ B' N. U9 o( W' n, ] - [7 G7 ^9 w6 S$ E6 M5 l/**************************传递数据给extend**************************************/ - r2 Y# N& n2 b& F+ A# O, a pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); - d: m; D H9 S7 L6 @ . n9 i: X! ]" g valueStr = SysAllocString((WCHAR *) L"1232"); : m) a- d; {- S" e. d VariantInit(&pokeVariant[0]); 9 z/ U% Q8 J6 R# x% {3 V7 L
pokeVariant[0].vt = VT_BSTR; . K$ A# e: m) ~. V) g0 g: n# s pokeVariant[0].bstrVal = valueStr; , l) V1 P& |3 {- B" U9 } ) D1 A) A$ Z, A. w" | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- Y e- i& Q4 x; I4 A8 @ Y: M0 |
VariantInit(&pokeVariant[1]); - H! L J" i* w# c4 H- k
pokeVariant[1].vt = VT_BSTR; + E( m3 m$ h' T) f pokeVariant[1].bstrVal = itemStr;6 [! S4 m* g1 M5 O. h3 r; c, N
/ c* ]5 a) C* O% d topicStr = SysAllocString((WCHAR *) L"system");$ p9 }4 C% r) X' u: ~
VariantInit(&pokeVariant[2]); / P0 B% u# ~! m% p' A( X& ]
pokeVariant[2].vt = VT_BSTR; & V2 w% z/ d2 p- }+ Z6 u pokeVariant[2].bstrVal = topicStr; 9 N: a- [) B4 j& x, q 7 ~8 J- ?; \% x- e// Set the DISPPARAMS structure that holds the variant.1 k6 s) }, {* T
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dp.rgvarg = pokeVariant; 5 C/ w/ i$ ~( l) G: z) |2 ] dp.cArgs = 3;; N) G3 C/ R0 ?* D' ^/ p, E9 w
dp.rgdispidNamedArgs = NULL; ; u c6 I L& C" J( V5 ? dp.cNamedArgs = 0; ) Q; p( o% P! p' R$ d1 f& V7 O6 t$ ?/ c5 g; y `
// Call IDispatch::Invoke() 1 ]- A. p1 o5 ?- z; Q# x6 V7 g) r* W5 f3 j. x- X9 @- J
hr = m_pDisp->Invoke( / r9 S- a& J! p2 l& y; z pokeID, / m- [+ D u/ a IID_NULL,8 g- E; |) W2 j9 d ~$ ?1 L
LOCALE_SYSTEM_DEFAULT, , z4 c( D! X& Z$ N% ^1 b0 r DISPATCH_METHOD, ( Y7 R* y1 s8 o' R8 o1 B &dp,; r! J1 Q5 s2 N: r9 m) `" E
NULL, . C! X3 j4 {& a& Q( |0 c &ei,) B7 c# z5 H3 F
&uiErr);9 x/ ^4 q9 K5 `- `
$ y- R* B3 L0 ~' l6 Y. H: C6 O: I SysFreeString(topicStr);2 o$ }3 X* t3 N, h- b
SysFreeString(itemStr);: V( h) y8 h( D7 _
SysFreeString(valueStr);3 {( A9 v% H$ d4 C
8 k7 H, V/ x0 z5 M, 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？？？ " @ ~) I' V3 n- B/ J/ c/ J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？？？？) r( q" w$ z- i! e* q
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2.这是request的程序& a; @7 E' y! b
// Request a value from Extend9 ~% X. r% t0 C+ {+ U
//4 F. e5 u. E. E/ y
// Initialize the variant that will hold the BSTR. Set the variant's3 V2 B8 n- t# K9 x. R; b
// type flag to indicate the fact that this variant holds a BSTR. Place the( l0 S6 Y0 O3 F+ E
// BSTR into the variant structure. o, h; d% r+ T5 q9 t' ~+ Q' ^- H2 M, ^+ L: F
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); : t) y' z5 N' R0 q( Z5 D2 u 6 `1 z- w0 p+ Q! q1 U0 b# G8 S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - q0 Q% ]6 G- `5 q Q' E- { VariantInit(&requestVariant[0]); ; C$ j/ k F: K' N; B$ Q* Q! R requestVariant[0].vt = VT_BSTR;+ Q) V; \9 t! W9 B. a/ H
requestVariant[0].bstrVal = itemStr; 0 z4 V, a1 v+ J! Q / O- ~% f0 {0 g2 k topicStr = SysAllocString((WCHAR *) L"system"); 9 s* [' l7 u) [# x VariantInit(&requestVariant[1]); ' ~, R8 x r$ f. ]/ f& {9 H requestVariant[1].vt = VT_BSTR;9 m+ ~. a6 c2 z% @/ B5 B# D4 R
requestVariant[1].bstrVal = topicStr; " ~0 x% L- \ m& _, w& r: f' A, Z* e& K: ]2 K7 ~0 g
// Set the DISPPARAMS structure that holds the variant. 4 u- C: a, l$ W! d. b0 _* f7 d3 E# U, m# a/ a
dp2.rgvarg = requestVariant;+ m! V/ X! L5 U- a- Y: g
dp2.cArgs = 2; ~) }; x) i) r/ u
dp2.rgdispidNamedArgs = NULL;1 }& {: K" t6 {$ f2 Q
dp2.cNamedArgs = 0; / ]0 U" u. b9 ^' D0 l0 I! E9 U+ t. ]& s* L- ]' [, L( \: N+ a+ v
var.vt = VT_EMPTY; + V5 R, @) r5 S3 C+ l5 g. l, h6 b5 Z8 F, L
// Call IDispatch::Invoke() O1 T( @: G+ |/ c$ l4 q5 t9 | K3 o! Q/ t
hr = m_pDisp->Invoke(& f. a2 l0 E% }' _, ?. e
requestID, X5 s, o9 @6 v R
IID_NULL, / G1 H( y& g% V* L LOCALE_SYSTEM_DEFAULT, 6 F6 ~0 A: w' Y, W9 h DISPATCH_METHOD, % r/ m/ t% i5 b L &dp2,: h) x8 e% s4 r' h# h& ~/ P
&var, 3 i s/ @3 W, Y9 z P. m &ei, 3 a, m; Q) W* \+ b' B% u( y$ s &uiErr);0 T6 \" c; H/ r
+ Q9 q/ C' P; [; U SysFreeString(topicStr);5 k+ y, W& K' Y/ v$ l$ N$ D% v
SysFreeString(itemStr);- U' z0 G# h T
请问该程序是获得extend里面的哪个值？ # H0 Q$ d9 P! e% ^$ S" S1 G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？？？？
发表于 2008-11-25 19:37:03
