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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:* N3 H/ n" @. Y. E
Name = (WCHAR *) L"Poke";2 P' q( T/ v2 u9 M# z
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hr = m_pDisp->GetIDsOfNames () g9 Y7 F" q) h% [ n7 y' F9 g
IID_NULL, // reserved% n5 a6 m$ a+ g; ~; y& k9 [1 P8 I$ l
&Name, // Array of names to get IDs for9 h5 t6 P) E' f' w- i6 j6 \
1, // # of names in the array' r) U/ T: P! J" m" l
LOCALE_SYSTEM_DEFAULT, // System locale4 G0 t: B+ W8 E9 t
&pokeID); // Array of IDs to fill on output
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% b. Y5 g/ w! Z! N if (hr)
& b0 ^; w" e7 H" a1 m' V0 B9 K {
" S8 X& |. f( Q4 i D" x) o MessageBox ("Get Poke Unsuccessful");3 B2 N0 s& k- g. N
return;
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; M9 c7 X5 s- J; D( G* P0 R/**************************传递数据给extend**************************************/
& I% W8 T" A$ I( G pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);7 J4 Y5 O" x1 g% h
5 U) I: I( s! n' F+ ^* f valueStr = SysAllocString((WCHAR *) L"1232");
: l& t- e$ e5 }: b3 \ VariantInit(&pokeVariant[0]);
$ R) l4 C+ l7 m& l! D pokeVariant[0].vt = VT_BSTR;. y, o$ F! Q' B/ e6 [, x4 {( \
pokeVariant[0].bstrVal = valueStr;
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2 ^" }8 w: r( t+ J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
, P a- d0 Y+ B6 \8 I, Q- `3 Q VariantInit(&pokeVariant[1]);
1 R; Q. Z7 J& @7 m pokeVariant[1].vt = VT_BSTR;
$ t% N9 X' e! l/ q. l# E pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");
: u3 A; i* o& k/ E VariantInit(&pokeVariant[2]);
+ N# l, j/ h' L pokeVariant[2].vt = VT_BSTR; i# m0 U, q+ }1 a
pokeVariant[2].bstrVal = topicStr;% s t6 y) ~$ K, z7 ]. c0 s
9 ]% W: u( }1 F3 y( i5 J: D// Set the DISPPARAMS structure that holds the variant.8 A& n) X N0 N7 W
- @8 ~3 \0 Z, t* G' o dp.rgvarg = pokeVariant;' [ T* [7 S3 ?. m4 P1 G c/ R
dp.cArgs = 3;
4 x- r5 v3 Z6 _7 N0 R0 p1 ] dp.rgdispidNamedArgs = NULL;+ D# q- z8 r9 X9 d
dp.cNamedArgs = 0;
( ^( i4 |$ ]2 b) W4 ?+ K# \
: Q0 J1 O5 ]" m! \# |$ v" O// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(7 k. Q" X, Q' T7 i
pokeID,
/ w( a( ~5 ?& \ j$ M IID_NULL,
2 l# I- ]6 r# A7 Y2 ` LOCALE_SYSTEM_DEFAULT,0 D; S) H/ n* C# d0 o
DISPATCH_METHOD,
. c. T( ~/ b0 I y &dp,
3 X2 D$ X9 K( R; {# g; G t NULL,
7 \0 Y/ G; B9 I$ O; H9 l &ei,+ ~+ }3 z' k5 V
&uiErr);
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$ C* k9 l5 o ^0 g- C6 I SysFreeString(topicStr);! N; U$ G0 x% T/ p
SysFreeString(itemStr);1 I# f, m9 h0 ]; _9 j+ v9 P( \
SysFreeString(valueStr);
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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???; R7 Y" T. c! U. Q8 a( ]: E, h
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????( E: c# b3 {( c ?5 i1 M+ V8 w
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2.这是request的程序
, _$ m. |7 W8 z// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's% I8 s. H7 H6 e% @ I1 O" B) |
// type flag to indicate the fact that this variant holds a BSTR. Place the
" v. m9 E* _$ c! @2 ` `1 \// BSTR into the variant structure.6 D: {( `$ c& [+ w. {
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ o. O# H" M5 c; U% ^
VariantInit(&requestVariant[0]); : c+ b" |7 g9 U7 I# ?+ x
requestVariant[0].vt = VT_BSTR;
& M! W3 f. @3 M# J2 n8 ^1 { requestVariant[0].bstrVal = itemStr;( Q3 W$ H; d2 c
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topicStr = SysAllocString((WCHAR *) L"system");
& J+ ~8 s. Y7 ~% O5 `5 d VariantInit(&requestVariant[1]);
& Q0 f# s5 h, ?7 C requestVariant[1].vt = VT_BSTR;" S' M0 ?# u+ Q+ O# g
requestVariant[1].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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) V. C! I$ X3 f, r# z. J ^# z$ n1 N dp2.rgvarg = requestVariant;- O& d2 [' D* Z1 ~; [7 H% e
dp2.cArgs = 2;
3 d0 F7 i3 G9 w dp2.rgdispidNamedArgs = NULL;$ K$ h6 |% k; d/ l& I
dp2.cNamedArgs = 0;
! {- }3 q0 i C8 C7 {+ \! j
5 F. A8 \. ?# _! J+ V1 ?% A var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
! H' m+ R, t' u requestID,8 m5 `6 i( q8 x0 h! ?0 `
IID_NULL,. F& I B, M' S- L; V, i0 ?$ ^
LOCALE_SYSTEM_DEFAULT,( m( a* O0 l9 t1 T5 q Q
DISPATCH_METHOD,
m8 b) y( v, U# A2 h' Q &dp2,4 Y9 v f4 } h
&var,( s9 W+ R [* G5 U
&ei,3 ?4 ^% j( V6 W, {
&uiErr);
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; |7 ~2 I0 K; o: @ SysFreeString(topicStr);4 s) _; \. Z; K" C7 n p1 M
SysFreeString(itemStr);
. s* E8 ]$ s3 H请问该程序是获得extend里面的哪个值?( Z3 G# |. }' F$ `6 Y
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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