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 [3 N/ U6 j8 H- K$ Z Name = (WCHAR *) L"Poke";+ Q: A- c9 y; r" b- s$ `8 h+ y
0 T, V4 R, t" y% p0 e! @* R' E: v hr = m_pDisp->GetIDsOfNames (
4 E/ A% o7 Z2 k3 M/ m& l IID_NULL, // reserved
) I, `9 H7 |3 U( P) k. R &Name, // Array of names to get IDs for# A" W- \' f; O8 M) c! s
1, // # of names in the array$ d( A0 H0 k6 E/ z) f3 W) b( t- p7 y
LOCALE_SYSTEM_DEFAULT, // System locale7 f n. K/ L/ o/ [6 l/ ]
&pokeID); // Array of IDs to fill on output
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if (hr)
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MessageBox ("Get Poke Unsuccessful");3 ]4 F5 q' H6 M6 Z/ i3 Q) n0 j3 t
return;
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7 \2 f$ C( x2 ? /**************************传递数据给extend**************************************/6 j5 W: p8 t8 M( [9 u) G7 q
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");) t$ l/ e( C. f
VariantInit(&pokeVariant[0]);
7 j9 [7 ^+ Q0 C/ b" s- y' H6 n; o pokeVariant[0].vt = VT_BSTR;, v: D ]8 n) ]
pokeVariant[0].bstrVal = valueStr;. E8 I2 _ G0 I! @) m: a* Q
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");/ K" d5 {# J" R& x/ d/ Q7 ]( `
VariantInit(&pokeVariant[1]);
l0 B: ^* s& P0 D( l" h pokeVariant[1].vt = VT_BSTR;" g7 T! O9 s; ` ?9 z/ z: y
pokeVariant[1].bstrVal = itemStr;' F. t! S% I8 T5 r2 J
& q* C1 a( u5 e) {& p9 b topicStr = SysAllocString((WCHAR *) L"system");/ l& n7 {. R. a( l+ L) p5 E7 O$ N$ Y
VariantInit(&pokeVariant[2]); / I# B0 g4 R1 s
pokeVariant[2].vt = VT_BSTR;
$ ^8 W# Y( S" } pokeVariant[2].bstrVal = topicStr;" n/ f) n, {; V& C/ X
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// Set the DISPPARAMS structure that holds the variant.- v$ ^/ }- X, [ g" o, O' f
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dp.rgvarg = pokeVariant;! r. T0 J2 C. _7 _, F2 ~' @ C
dp.cArgs = 3;3 Y3 {+ n! q' N* z! J
dp.rgdispidNamedArgs = NULL;, s/ K# ] _. j. I- d/ r# n
dp.cNamedArgs = 0;5 y) w. H, X6 ^, }' s9 q
% X/ w& s: @$ |" y7 `& T // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
3 m( Y/ @: m3 x pokeID,
1 ~8 n/ r2 I7 Q! u2 x IID_NULL,
$ B v$ `. ]0 u. S2 p7 p# d LOCALE_SYSTEM_DEFAULT,. \1 K, \1 |3 `8 R3 b
DISPATCH_METHOD," r& c3 z/ i. D* \/ b% f1 e
&dp,
$ M: Z& l. C e+ f7 [ NULL,
' q7 G' g+ ^: q &ei,0 }) ~* C0 I5 L" H
&uiErr);
+ R( s! k. H+ c5 `9 k, F" i; f / d F2 [ U. S: W/ Q% u; v
SysFreeString(topicStr);
3 V1 ]8 d2 z+ {- F7 Q. x SysFreeString(itemStr); @/ @6 [. ]4 |3 [$ p* C2 t) A
SysFreeString(valueStr);
* f* Y3 i6 B+ ?% l
# V0 `7 G: e7 Y9 y 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???
$ s$ ^& _- M" T, G9 T* m 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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( Z5 B. m6 f( ? 2.这是request的程序4 h) l( a) E, a8 R% j) M
// Request a value from Extend
! g9 y1 L" ^0 E2 Z3 N" s1 T //
8 p _0 v" Y4 s) n7 G$ n2 u/ W9 q& Y // Initialize the variant that will hold the BSTR. Set the variant's
2 Q: K/ S+ [3 X& C5 P // type flag to indicate the fact that this variant holds a BSTR. Place the
& a+ a5 D) {5 L/ Q // BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% s; ^" Z: B9 @: [ U
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");+ m% A. }; }0 L1 j6 d; n! @3 B
VariantInit(&requestVariant[0]); ! M& P% ]4 n8 o, x2 t) e' V X8 g
requestVariant[0].vt = VT_BSTR;4 [; g( X" O# A7 a/ C" d3 K/ }/ u4 U
requestVariant[0].bstrVal = itemStr;
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. ?7 N- }; o9 | T# W9 X topicStr = SysAllocString((WCHAR *) L"system");( l) B) l- }4 `: `
VariantInit(&requestVariant[1]); : L: S& W: z% f# r8 y/ b& ]
requestVariant[1].vt = VT_BSTR;* c- Z- p% \& p7 N; F$ q, ?! j; Q
requestVariant[1].bstrVal = topicStr;
+ [# z5 c( n# _+ E; g& Q
9 i/ g$ v5 V0 [2 @5 i) ~. b // Set the DISPPARAMS structure that holds the variant.
2 T: x. Y( A n7 ^/ _
4 X; b( R% g/ s x9 ] dp2.rgvarg = requestVariant;
, p2 q( T6 O; m/ x$ c dp2.cArgs = 2;$ y3 f4 Z2 \4 S' ~3 d$ c
dp2.rgdispidNamedArgs = NULL;
1 P# D6 W- t* P4 c dp2.cNamedArgs = 0;" I/ T. ~0 J6 l! B+ j: E
& _( O$ ]: }+ Q" K$ L var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()6 U6 e( y8 ]2 u1 G( r
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hr = m_pDisp->Invoke(
7 r% q# m1 l- ?" q' F requestID, ?; W" I4 T* X/ ?
IID_NULL,, D I5 t; F$ Z: ^8 x7 j% E/ s
LOCALE_SYSTEM_DEFAULT,
* _- g6 t) T- B" R8 t. m0 T DISPATCH_METHOD,9 y- l" S; n: n* Q+ h
&dp2,
6 I, W$ u5 H; r% _! g! i; K1 A &var,
5 E; [4 Q6 b) `6 q" q& L- u5 { &ei,) C( u, w* }& y2 `* N9 O# a
&uiErr);
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1 H0 B0 j; ?/ T: f) }$ p* r4 G SysFreeString(topicStr);
; n) }, w* Q% s7 ^: ^ q/ s6 s SysFreeString(itemStr);
( E, u) Y' `5 a8 W( J$ O 请问该程序是获得extend里面的哪个值?
L9 s# t0 ?7 U0 \) X 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????
我来回答