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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:
6 ~0 O: @; b# v4 J' Q4 v$ PName = (WCHAR *) L"Poke";
+ V: X" R- x9 H2 U/ U$ U " O+ @7 V' o7 Q: r* d9 p
hr = m_pDisp->GetIDsOfNames (
" K: [1 C H2 \! U! r IID_NULL, // reserved
: y% Y- l; g" D &Name, // Array of names to get IDs for4 o% ?- O* h) ? i4 T6 o
1, // # of names in the array
8 |' D# Q/ l: ^( j9 n) j4 z LOCALE_SYSTEM_DEFAULT, // System locale
8 T& C* p; C" Z &pokeID); // Array of IDs to fill on output% v P) P$ R& @# D6 v' X
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if (hr)
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MessageBox ("Get Poke Unsuccessful");. Y/ b1 i0 K/ U
return;' F" W$ `9 M& G& Y! R( y
}+ W5 w) `* l+ M
b% b0 _8 V: ^8 d! W9 V/**************************传递数据给extend**************************************/
/ P8 F ^3 ?+ |' t% C# ? pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");
3 v6 ^% r, X5 f7 D0 E, v, m VariantInit(&pokeVariant[0]); 2 e! ]! o9 }/ h/ T. _' G
pokeVariant[0].vt = VT_BSTR;
. x% Z7 ^0 G' y pokeVariant[0].bstrVal = valueStr;5 r& T4 C' G4 I: R E
% ` H8 @% y! c. k itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- w1 [/ V$ G! y5 d; H! B
VariantInit(&pokeVariant[1]); 6 x8 T% v7 s: K' ^7 D/ d8 r1 i
pokeVariant[1].vt = VT_BSTR;8 W$ a0 N3 h. {: a
pokeVariant[1].bstrVal = itemStr;/ Z0 t7 W0 @/ {. S6 Q
; K& f: D3 F: `0 E( x topicStr = SysAllocString((WCHAR *) L"system");! N0 r/ l7 F! _9 ]: M# H2 x) ~
VariantInit(&pokeVariant[2]);
0 ?7 K" _1 o+ _ pokeVariant[2].vt = VT_BSTR;: b& m I+ S3 H% L/ M$ p# H9 y
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.1 \, X$ q1 u; |* g' ?$ k7 J* ?
0 I' A$ N$ b* n% ~+ o) |; K dp.rgvarg = pokeVariant;4 v! S0 _9 T* [/ G( T& N9 g, O, K
dp.cArgs = 3;
! Q0 l9 m( c+ _9 t$ ^) K, w: A dp.rgdispidNamedArgs = NULL;
; ^' {! J- J5 e/ J1 @8 w& a dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()0 D" x$ M; H- L+ k0 I- T; b
9 ]6 @7 W! ^* q hr = m_pDisp->Invoke(( N! F; _/ X+ H
pokeID,
: u; @% e( _: V, j7 k IID_NULL,1 y( z& j4 C: w" G _; g
LOCALE_SYSTEM_DEFAULT,# ~& \ u0 F3 _% X0 s `/ l0 ^. c5 u% j
DISPATCH_METHOD,6 f5 h5 `0 j( l5 a
&dp,/ }8 _% q+ Z( X- Y9 U
NULL,
6 S ^2 @. O8 U# G' N& T4 j &ei,5 Y+ X" e$ K0 i3 Y, c+ Z
&uiErr);; j( r: r" S0 t. W2 R' I2 B
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SysFreeString(topicStr);
% _+ i$ b! n8 z SysFreeString(itemStr);
" j6 s, }) s4 @ F SysFreeString(valueStr);8 C/ x0 {( c% w$ Z
' O7 i" n6 g# Z0 R: q5 V: H, u
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???0 ^+ B. K. ~, @9 u4 b" w
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????; {6 B% K9 B" [
& Y5 Y8 \: B% r& ~3 v; s% ]5 f6 {3 M/ y
2.这是request的程序; [% p3 Q* _* H5 n
// Request a value from Extend
; x( O7 T$ K7 z/ F//
$ y8 b) l. B0 ~/ S: @// Initialize the variant that will hold the BSTR. Set the variant's: t. {" W* F( J/ D, x! j9 x0 [
// type flag to indicate the fact that this variant holds a BSTR. Place the
4 v* b+ M, t4 H" |3 G4 O// BSTR into the variant structure.
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1 J( Y5 \ \. p$ T/ Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);6 O8 l0 z$ m! I/ v3 w3 t% v* d7 |3 \2 e
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
$ f4 w1 U( ?8 t0 ` VariantInit(&requestVariant[0]); + u1 z1 S" x3 ]: g" j
requestVariant[0].vt = VT_BSTR;
: O; P2 r2 J6 J2 U( d requestVariant[0].bstrVal = itemStr;7 F: n4 @4 [& x9 }% s
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topicStr = SysAllocString((WCHAR *) L"system");
$ `( Z; }5 B- n4 j3 d5 H0 I+ O. W VariantInit(&requestVariant[1]); - [4 |. G8 G4 Z1 N1 Q
requestVariant[1].vt = VT_BSTR;
+ V2 }- B1 m0 g6 }8 g# f8 }6 F requestVariant[1].bstrVal = topicStr;- x2 n3 s+ f% l4 G, w9 l5 n
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// Set the DISPPARAMS structure that holds the variant.7 f) g$ N+ G Q; @2 T
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dp2.rgvarg = requestVariant;! Q3 J# t9 y1 b8 p& l* Z8 j- y, b
dp2.cArgs = 2;( @3 ^8 T& g) H$ c7 y5 l( Z
dp2.rgdispidNamedArgs = NULL;
0 j; `# @- A4 Z dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()) H9 I% e( r2 q
% ^% S+ l, U4 S& [6 ?3 |' M hr = m_pDisp->Invoke(
, C: b: T+ D4 H' h requestID,/ d3 ^* z! ^( a v4 w S
IID_NULL,- M' E6 M2 Z: [1 w
LOCALE_SYSTEM_DEFAULT,
H( z7 f( N" F' E3 T DISPATCH_METHOD,
5 v0 b) x" S. h &dp2,$ |4 f7 m: b8 p5 t* D8 B
&var,& G" ^: F, n; r% X/ R5 i
&ei,
/ k: {8 `3 U, ?3 i0 M &uiErr);- w9 O0 _) Y$ x" a
- Z4 N/ c) [) e* X
SysFreeString(topicStr);
3 ^4 ?/ q( n E0 M$ o, B SysFreeString(itemStr);
/ w2 L8 f( T# w% p请问该程序是获得extend里面的哪个值?7 Q9 T8 ~6 z7 M& @/ z
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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