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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：
/ Q" ~! V; n3 F% K' b( K+ yName = (WCHAR *) L"Poke";
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8 {+ T3 ]. @8 E/ [% W0 R+ w1 _# | hr = m_pDisp->GetIDsOfNames (8 `* v" z/ m& t( D7 d- G, s% m
IID_NULL, // reserved9 q# e1 z Q' X& c
&Name, // Array of names to get IDs for% \* m0 ]5 ~* P) t" p
1, // # of names in the array
5 f' y) D6 E2 k. g2 d6 ?' e$ g LOCALE_SYSTEM_DEFAULT, // System locale3 A4 y& I) J0 z w0 l" |7 \
&pokeID); // Array of IDs to fill on output
$ D: |! D& T8 J B/ P8 E: { 7 {1 M1 q2 r' @0 X1 n/ x
if (hr)
' D7 S" J4 _$ |1 P0 K2 i$ k {
8 f4 G" q1 l. Q6 H' I# y* d& Z MessageBox ("Get Poke Unsuccessful");
% F, [: E' e0 Q& W- W/ @/ K9 P return;$ Q4 y/ ~: S; J, I
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/**************************传递数据给extend**************************************/
0 D( D; ]: f. R' v pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);+ x+ |% W' U& w7 I
- [7 ~) F4 T: ?9 G valueStr = SysAllocString((WCHAR *) L"1232");5 T4 c4 w; \6 R5 D! P) E1 |
VariantInit(&pokeVariant[0]);
, a3 t9 C$ E3 k8 n5 R pokeVariant[0].vt = VT_BSTR;
' u; S# a+ I) ~9 _. v* g7 X& I5 I& i pokeVariant[0].bstrVal = valueStr;) O( i" A5 T# F t
, c& n! d7 @9 ^4 | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ h# w, ~. G) z5 U' \
VariantInit(&pokeVariant[1]); : `" C2 H0 S$ i+ p w) ^& C
pokeVariant[1].vt = VT_BSTR;0 ~& X- l! e0 S0 W. i
pokeVariant[1].bstrVal = itemStr;
# _3 ]+ @6 N. G& J. r2 x; b7 e1 {' r+ Z: V5 V+ J# e1 g
topicStr = SysAllocString((WCHAR *) L"system");
9 K6 T! s, F; i' Z5 X VariantInit(&pokeVariant[2]);
% |% n- E' @; }* ?3 F. M+ F6 c pokeVariant[2].vt = VT_BSTR;- a5 N6 g) d3 v5 w0 L7 ~: d# }+ `
pokeVariant[2].bstrVal = topicStr;& ~- a9 f" k2 L- Q' J$ X
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
% Q9 V8 u' Q5 K& G# `+ y dp.cArgs = 3;
( |; `# Y$ R* ` D# \ dp.rgdispidNamedArgs = NULL;5 Q0 F! d$ b0 ?
dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()3 \6 a7 ~. ]4 s3 S E. \. Z% A1 o
3 N( t6 ?+ g0 [ w) S/ r
hr = m_pDisp->Invoke(
5 f# f4 f( L( ]# }* C pokeID,; q; ^9 p' W- k# f
IID_NULL,
- N9 O: e) m0 u LOCALE_SYSTEM_DEFAULT,7 I- ~1 g5 }2 o, V$ {
DISPATCH_METHOD,
, L! u( k; _' ?+ e &dp,
8 f3 v; ^2 h; T! A: F NULL,# D# n! N2 I9 [) ], `( V1 n: f+ E
&ei,
" A \% W8 H! [7 y' ^3 ] o+ O &uiErr);0 P o$ D9 Z. r O6 [: N
q! H9 k& P/ \" |4 v! T) l0 _
SysFreeString(topicStr);5 v6 b& R0 o( p) q8 K( ?; E
SysFreeString(itemStr);
0 V% F5 h% Z" v* z( n" a( t( I SysFreeString(valueStr);
/ V. ?$ g0 Z' `4 S& K3 p/ s( y) | ?! _' 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？？？, V% Q& |2 z9 @! G
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 l5 N1 n/ y. }# o- f4 w7 p* N/ s% n$ Q+ g: x5 `- c* _. A7 W
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2.这是request的程序
$ R; t% n& q2 Q* ]" a// Request a value from Extend
0 v0 U6 r7 C7 I4 ~6 G+ o* k- `//
/ p" x: K& ~' I" H// Initialize the variant that will hold the BSTR. Set the variant's
' w) i8 c/ k0 A4 u// type flag to indicate the fact that this variant holds a BSTR. Place the# S: m2 F0 }) r+ H; Q# c% X/ h( @
// BSTR into the variant structure.: N9 j& x4 l8 `; b K
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);2 x: Y) p9 Y/ f3 l- K6 S, [1 ?4 t4 r
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 u$ z1 w4 A' k, ]% _
VariantInit(&requestVariant[0]);
5 h9 ^6 C7 P6 E7 { requestVariant[0].vt = VT_BSTR;
. A6 F/ |" `) S3 ~- W: t requestVariant[0].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
6 q6 D: z; L! o, t$ {8 ^( O VariantInit(&requestVariant[1]); , S1 I; v- W! K
requestVariant[1].vt = VT_BSTR;
) {' e( X5 _2 X" Q8 j requestVariant[1].bstrVal = topicStr;
) `1 ]7 d9 I' h' n" _4 `
( Z: y2 m% t: \# u/ Z; u" x// Set the DISPPARAMS structure that holds the variant.
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dp2.rgvarg = requestVariant;7 Y2 W9 @, ]0 M2 q( d. l2 q" U
dp2.cArgs = 2;( `9 p0 m4 w7 A) N5 E9 j2 F/ i
dp2.rgdispidNamedArgs = NULL;
% ?4 |7 s. Y/ K: E' J, B# E dp2.cNamedArgs = 0;9 G5 k1 {+ f- a- `; A' N9 T% Z
. y& v& w- X8 o var.vt = VT_EMPTY;. ]! [9 t- s- V+ H8 c7 y% L: x
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
" I* e' |: M$ W% @& T+ A! i7 z requestID,: G2 A4 x5 s6 `% f
IID_NULL,, a/ M$ l% b5 ^- P" f! P
LOCALE_SYSTEM_DEFAULT,
, B- W6 s7 |5 v1 p0 K- w) h DISPATCH_METHOD,* ^% M4 Q* M& `9 e
&dp2,
! o7 l) E1 L' f7 G9 i6 D &var,
# g( }+ O' M: C &ei,
8 [$ X( O4 M2 { &uiErr);3 Y4 E" J( a" d m/ h
: a. a' [8 \/ Q: l SysFreeString(topicStr);8 G% T: Q3 f+ f) j
SysFreeString(itemStr);
) _& i4 R, a( v( q请问该程序是获得extend里面的哪个值？( P& ?" V8 F# x D' X1 {+ ^8 I
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
