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5仿真币
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：
% ~0 a2 ?) ]1 _$ D% J! [9 D8 hName = (WCHAR *) L"Poke";8 s( h! y- b; U( r; P1 B% Z' ^6 u1 t
, W; F; E o) V; c1 j- V hr = m_pDisp->GetIDsOfNames (
- `* O8 B# v, n% R. \& g( F- ^6 _/ v IID_NULL, // reserved
5 k7 F/ @. L( T$ X% G &Name, // Array of names to get IDs for. ]% O7 ^- G/ `+ m$ Y
1, // # of names in the array
; |, O, T/ ?7 g" m2 B LOCALE_SYSTEM_DEFAULT, // System locale
7 x+ {1 V- t, m2 u6 ?8 ? &pokeID); // Array of IDs to fill on output$ x$ b/ ]2 o6 }) n
' a7 B2 r! x) O$ ^6 `3 i
if (hr)
1 v( D0 b- O! O' _0 N5 ^0 N, B { _0 u, t) \. }" p% n
MessageBox ("Get Poke Unsuccessful");
6 ]6 S9 n, A0 p, |' `! u; P return;6 }# y- J: t. s6 z( N
}
3 @$ N8 }0 e; r; W) E+ {8 w6 R) t/ l3 }
/**************************传递数据给extend**************************************/* Q: ]) O2 [4 b$ y s
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);' c# P5 [7 u7 s( {9 h
) |$ o! O% `' a6 ^& V& w* k valueStr = SysAllocString((WCHAR *) L"1232");6 ?& |" ?3 F9 e. ~+ L3 w
VariantInit(&pokeVariant[0]); 4 _* p- O) x, Q. I) t) j$ Q: z
pokeVariant[0].vt = VT_BSTR;
/ A ^" r7 L! S# a! u3 s3 O% \ pokeVariant[0].bstrVal = valueStr;5 S, f3 l8 L" U
* L7 E8 b7 Z& H8 [2 g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");0 p2 c# n& s5 F' `
VariantInit(&pokeVariant[1]); . B( Q3 N* \5 U
pokeVariant[1].vt = VT_BSTR;$ L+ r) n$ \2 [5 A
pokeVariant[1].bstrVal = itemStr;! ~; } h. Y" M- I
8 k! H: f7 F- N( d6 Z' b, F topicStr = SysAllocString((WCHAR *) L"system");& T# K0 D; z8 e
VariantInit(&pokeVariant[2]); 5 G, }% Z; C: W* j8 S# M9 u2 ~
pokeVariant[2].vt = VT_BSTR;
% |0 u6 O6 p5 L h0 t pokeVariant[2].bstrVal = topicStr;
5 \* n4 C T, O% x
& k* @! S0 w' g4 }' }// Set the DISPPARAMS structure that holds the variant.
, m2 ?# E7 X( M' m6 e' m) M. I' n* q2 y1 s+ X9 d0 h2 ^
dp.rgvarg = pokeVariant;6 b! O+ A7 @7 D
dp.cArgs = 3;
5 |$ q& o/ ?& ]8 r% B$ Q dp.rgdispidNamedArgs = NULL;
* M2 V( K; u! D dp.cNamedArgs = 0;
3 @: ~* ]+ J. k% T, z" I6 v' H( A3 O+ q9 u$ N9 K' b9 W$ F
// Call IDispatch::Invoke()
& O, S/ t+ y6 ^/ ~" o4 e3 A8 T$ {* H
hr = m_pDisp->Invoke(
* z! Q9 ~, y+ f9 y pokeID,5 N" G `6 V! p( F
IID_NULL,
8 ^1 L7 _/ h; j$ L& o: ~0 H LOCALE_SYSTEM_DEFAULT,* i0 w9 ]- r/ b0 R, N2 |4 b
DISPATCH_METHOD,3 e6 d+ x" c, @7 m& |0 O
&dp,1 \8 c5 d8 q0 P( d0 G& T
NULL,
/ q/ W. z' x! @% O7 @0 y% p: k &ei,( c9 a2 r- p9 v, F
&uiErr);
3 x! m" q6 _$ h$ H: a5 }. G/ X. A7 Y# X, L$ ]
SysFreeString(topicStr);
1 @' ~8 k2 k+ Q% K. H SysFreeString(itemStr);$ d* K- n/ j2 x" J
SysFreeString(valueStr);
5 J* b7 m& z% w; o: E. M; R8 S! }" v& q
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？？？# s5 L& k K& u# p9 N; P/ `4 s
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？？？？
) [5 y* M( R8 `) ~3 _- P$ b/ ^- i: t s2 t- z5 i
8 {3 l9 q# i. a6 b' B# p5 ^
2.这是request的程序: v2 I& t ^ M# n1 H! I
// Request a value from Extend
; K; ^4 D9 p/ R7 ?7 ?& H//
, H1 Q. A0 M9 C0 I' H5 v" C' E8 X// Initialize the variant that will hold the BSTR. Set the variant's
+ Y- v# \' t4 C: e// type flag to indicate the fact that this variant holds a BSTR. Place the
& z8 u5 n, O" P8 o' \- @" W! D// BSTR into the variant structure.( \1 W$ z- {; L* `
' S! h0 R6 |: b7 b6 {# ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
3 m" j7 ]5 I% h0 {2 D4 Y
6 R6 G' T' E8 y' J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( F6 Q. p( B7 K5 ^# D' K- d) S* s: V
VariantInit(&requestVariant[0]); 4 L G6 P& ~% k+ }; \* h# z& I
requestVariant[0].vt = VT_BSTR;
' R! a( G; Q+ v& H( Z' p z requestVariant[0].bstrVal = itemStr;
! a2 D+ n& t9 f5 [3 z( s. I+ R: d( S$ ~& ]& D9 Y) O( u/ a6 r
topicStr = SysAllocString((WCHAR *) L"system");
! p% N5 ]- v7 V9 F5 j5 h1 b1 p VariantInit(&requestVariant[1]); ' H2 e- K) {2 O @' C
requestVariant[1].vt = VT_BSTR;
- n% P5 a! U) g2 t requestVariant[1].bstrVal = topicStr;
2 Y! I& M' p4 F5 z* q% _' \. P0 M
' D7 |7 c3 R/ W7 \// Set the DISPPARAMS structure that holds the variant.
J4 S b7 d6 J. N* e% W% z
% `2 \" `2 C4 I+ U. O dp2.rgvarg = requestVariant;8 c/ z6 v, b0 h" b. V% h4 d
dp2.cArgs = 2;6 J: q2 `% A% A5 e3 h
dp2.rgdispidNamedArgs = NULL;$ V& t' ~9 f2 N8 I" p5 H7 E5 Y1 q
dp2.cNamedArgs = 0;
- Z' O l& u5 X
0 y, u: u3 a) ?: t4 [, d( z var.vt = VT_EMPTY;& ^0 V M/ Z/ Q" }5 ]" O
+ V {- G0 ^6 P3 `
// Call IDispatch::Invoke()
x m# L% ~; W. P. t' ~
* d) a8 C, W7 T. Y& {, a hr = m_pDisp->Invoke(+ m R$ W1 W& [4 U* B/ T$ H: _
requestID,
7 g* V# Y! g' i" [( s IID_NULL,; N7 _0 c5 @6 v) X) Z8 c
LOCALE_SYSTEM_DEFAULT,- Z2 i, @' a0 r* \( C# C
DISPATCH_METHOD,* s' I( N+ t7 N, z" x' {
&dp2,
7 A/ s7 C* H! ~2 _+ v( f &var,( B3 k# J; I% o! q0 ~: S4 o
&ei,8 W3 q8 x2 S- d3 {$ l5 D- O2 ^
&uiErr);
8 P- Y! c9 e0 b! e( |; {- a- y: N g) J8 Z8 t0 ?
SysFreeString(topicStr);
2 g- c7 J$ L' y* J: d SysFreeString(itemStr);
2 K7 n6 d/ Y. s8 |. }6 G请问该程序是获得extend里面的哪个值？* }5 @. @( D8 M, p: ^! ^ V: L
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？？？？ |
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发表于 2008-11-25 19:37:03
