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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:
9 a- q) C& Y& y& h) cName = (WCHAR *) L"Poke";
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# _: |! b3 b& B: Y2 j; N hr = m_pDisp->GetIDsOfNames (+ y$ P/ H M4 k+ ]" J1 u& u8 l
IID_NULL, // reserved: T1 q( w4 O4 \# @" k* U
&Name, // Array of names to get IDs for
. s) y+ q5 M4 f0 I 1, // # of names in the array
# Z1 M+ W" V) @. u. z1 d; D6 M LOCALE_SYSTEM_DEFAULT, // System locale
! t' Z6 g) b& ]9 W &pokeID); // Array of IDs to fill on output
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if (hr)) b9 l0 u: j1 p4 }' v' P
{
" z1 }! T8 E3 F% m* d9 H MessageBox ("Get Poke Unsuccessful");: S$ U* |+ Y7 R" p
return;
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, P) ^8 F! t) a( v/**************************传递数据给extend**************************************/
6 L5 H! k6 [- X pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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. x0 ^. k- X: k7 Y# E valueStr = SysAllocString((WCHAR *) L"1232");% [3 u8 d/ W( Z6 F4 \
VariantInit(&pokeVariant[0]);
; z. |( u' e! b8 M/ S pokeVariant[0].vt = VT_BSTR;
$ Z9 X: [3 ~+ O( A- S# w- u pokeVariant[0].bstrVal = valueStr;. O7 I' @; f$ ~2 q5 X3 W2 E2 C
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");4 l( [ f1 @, E. n8 j. ]& [' r
VariantInit(&pokeVariant[1]);
5 Q. D. \0 b6 o: L( f6 p2 ? pokeVariant[1].vt = VT_BSTR;8 C( W0 O4 o; F$ w7 H/ X
pokeVariant[1].bstrVal = itemStr;
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topicStr = SysAllocString((WCHAR *) L"system");& m( s1 @3 \3 P( M# u3 F$ Y5 \ i1 H
VariantInit(&pokeVariant[2]);
- W, w+ E" d# K! m( w, ^8 h pokeVariant[2].vt = VT_BSTR;
& W, w0 {2 M) c1 {: m* K- J pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.$ i0 C; j2 P b6 c) S# R- a
) J# u# q$ }3 x6 w1 f3 n) y$ I dp.rgvarg = pokeVariant;, C, `- _/ n2 e# t
dp.cArgs = 3;
( s( W* Q4 v' |% x! H3 @ dp.rgdispidNamedArgs = NULL;
# i* }. i& @4 L0 S8 O9 e: R dp.cNamedArgs = 0;; p; s& N) ~( k0 T% R
% [" V* B8 D3 a, Y// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
5 ?% ?, a( f1 q" c( A2 ~2 o p# h l pokeID,
+ w$ [+ a1 \8 A: N IID_NULL,
+ ~& N4 l/ w% r; | LOCALE_SYSTEM_DEFAULT,
6 }* E! b) r; j& h$ O DISPATCH_METHOD,3 a. w- D d. Y0 }- _
&dp,1 y& K1 a0 ]& L2 b6 f
NULL,' V2 x" b" p+ L- t
&ei,
* a2 Z9 s* v! @; o8 V &uiErr);
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SysFreeString(topicStr);6 G/ S0 P T: F8 P# Q% u _
SysFreeString(itemStr);# B/ ^4 S z' R* j/ {0 k
SysFreeString(valueStr);: G4 k1 ^" @9 ^8 x& u
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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???
9 ^8 u' u6 q5 A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????
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2.这是request的程序7 x( e4 p' u& w) R+ N
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's# {0 A! W( Q0 o3 w5 I1 M
// type flag to indicate the fact that this variant holds a BSTR. Place the
4 A# L7 z0 z' B, t. b! J4 s// BSTR into the variant structure. }1 w+ u/ |; s9 H) ?* I. V, U
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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8 C. h3 X7 M/ {& B6 Q J; r( P itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 {# l% K4 x( k
VariantInit(&requestVariant[0]); ; C- k& _5 E1 M, U
requestVariant[0].vt = VT_BSTR;
) z* a, T( ^' v# T8 }) n requestVariant[0].bstrVal = itemStr;5 Q; ?. |. j( \% P& q1 g+ L
5 ?. O6 a! |2 l. g8 t: z& M, \( v topicStr = SysAllocString((WCHAR *) L"system");
5 j. x# w. H( X2 X( T- o# c1 l/ M VariantInit(&requestVariant[1]); ) m* o8 t4 O: }- O9 i5 v
requestVariant[1].vt = VT_BSTR;; D, \1 R% @! Z2 @
requestVariant[1].bstrVal = topicStr;3 w7 c+ c1 j( b# Z) L
$ C z6 I9 M+ D// Set the DISPPARAMS structure that holds the variant.. v& `$ D" Z; [2 k+ n. s
5 v. p' I* }7 e' M x2 ~/ h7 ~6 L3 H9 ~ dp2.rgvarg = requestVariant;" J* ^& Y9 q" J1 x2 U& M
dp2.cArgs = 2;' a* b1 E! O* s, [, P
dp2.rgdispidNamedArgs = NULL;. e5 i5 o/ e, I! [
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;1 l- s& R" [0 Y, Y- Q: u" X
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
/ W, l' S! J$ g; S requestID,9 ~$ t: q1 u- k7 M) n
IID_NULL,9 }! m A& R/ d& b; Z9 U- `6 W
LOCALE_SYSTEM_DEFAULT,$ B3 W( P0 ~3 M) K9 A6 _6 \
DISPATCH_METHOD,
8 L# X0 j' h- _6 F: ^* O5 F &dp2,
9 o+ U' _4 b1 L &var,% H; J, c" z" ^
&ei,+ v- I1 C0 y" R7 A
&uiErr);
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SysFreeString(topicStr);) W: K5 S' O1 i2 c$ i* K# I8 a
SysFreeString(itemStr);3 H/ ?( L" \" T6 G3 i( a
请问该程序是获得extend里面的哪个值?- d$ U* C6 [. }9 r5 W4 w- o- R/ W8 P5 [
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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