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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:8 q% y( F# m# `/ c1 C" v
Name = (WCHAR *) L"Poke";
* p8 E) G$ g& J3 H- u+ Y* @$ \$ g
0 ~ o# I: [5 |) |- @- D hr = m_pDisp->GetIDsOfNames (
; Z1 s2 D: E( B7 b" N" c W IID_NULL, // reserved0 Z# }0 y- l1 c/ T% [ k
&Name, // Array of names to get IDs for
0 `. K) P6 b- N+ A- t( q0 G 1, // # of names in the array% `9 g9 l/ Y" h' E$ @$ e
LOCALE_SYSTEM_DEFAULT, // System locale
9 X8 W3 \3 u( A. B &pokeID); // Array of IDs to fill on output
& b8 H4 E- A5 u0 `2 ? ) Y. R7 L; X5 `+ g% F- T: ]7 {- H4 z
if (hr)0 K7 D0 F1 L* n5 g7 z
{
( r2 C; I9 d! \ MessageBox ("Get Poke Unsuccessful");
& S7 y3 a9 ^2 t- o return;
* X1 W# D. |5 G5 n2 b# ~ }
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1 P7 N, P1 D3 [4 i7 {. ?/**************************传递数据给extend**************************************/
! j3 ^/ H7 T8 S1 k$ L g2 t3 w; l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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valueStr = SysAllocString((WCHAR *) L"1232");5 m1 `% f" X; l2 R8 x
VariantInit(&pokeVariant[0]); 9 }# x1 j4 B& ~# F: g7 v
pokeVariant[0].vt = VT_BSTR;$ X+ I* n* h8 M3 X! E
pokeVariant[0].bstrVal = valueStr;5 ^/ s4 Q1 R% w& Y) u1 a8 ?( i2 v! J# n
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% A4 M& h1 K: q5 k' K& w VariantInit(&pokeVariant[1]); % w9 e5 E8 X$ U
pokeVariant[1].vt = VT_BSTR;
8 R$ g+ y4 ?: J) D3 A' C pokeVariant[1].bstrVal = itemStr;4 [, H/ b, j. m8 N8 ]
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topicStr = SysAllocString((WCHAR *) L"system");8 {; _- t- {' Z( q0 m
VariantInit(&pokeVariant[2]); $ H0 S4 D$ Z% R+ h4 L8 H, t
pokeVariant[2].vt = VT_BSTR;3 h' K# e% p, w4 U$ s( n
pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.
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( p& a7 l& f a dp.rgvarg = pokeVariant;3 L9 J( J# A0 y
dp.cArgs = 3;8 G$ M; i! l6 U ^3 n+ O9 R
dp.rgdispidNamedArgs = NULL; X0 z9 R: u r
dp.cNamedArgs = 0;$ T9 M# {- ~$ i: Z% |, k
$ w ^3 q- u4 ~1 T# R& ~// Call IDispatch::Invoke()
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$ g0 b8 R9 Y* j w; P; l: o# L& F hr = m_pDisp->Invoke(
0 J% C. b3 x# V# Z+ D T1 _, [ pokeID,
: r+ u9 ~: W7 L8 K+ J# M L IID_NULL,
2 W' F& d; Q& s( x- _( j" c LOCALE_SYSTEM_DEFAULT,; C% Z! {! C: n) I1 J# a6 b5 @
DISPATCH_METHOD,
4 A5 V. D* z: d$ ^ &dp,
; }3 S2 u; g4 X% L8 X4 \" C NULL,! ]5 Y5 K6 M3 D8 K2 v) L
&ei,
! K4 s$ ?' c$ f. O, B) o &uiErr);
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SysFreeString(topicStr);
0 U9 D' v P# I, }; i5 o- r7 P SysFreeString(itemStr);
1 G' k( @) k" O: | SysFreeString(valueStr);
- V7 ?; `$ @" B2 i; Q
/ @" o) x! Z. r4 D' p) ?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???
4 \: e/ Z: N# o r- b( L) c/ Y- L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 R p; Q; Y! d1 S* x$ q; d2 [' \% n6 C% D. U& ?0 U
9 ]% `% }6 x' D, `2.这是request的程序
, l2 n# K1 g& o& C8 B2 n9 \$ A// Request a value from Extend" L% _# ]$ R! n
//' z2 G3 G% N; [7 O$ x1 v
// Initialize the variant that will hold the BSTR. Set the variant's
( z2 R& p) X; k# @& } S% N// type flag to indicate the fact that this variant holds a BSTR. Place the
+ n; m/ ^( N( [$ l( }. f// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 r$ S* h R; O* F
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% f* D2 |8 N l5 m- t3 H VariantInit(&requestVariant[0]); 4 L* P# F; p3 }' `
requestVariant[0].vt = VT_BSTR;! v! y2 O' W' l. K2 s
requestVariant[0].bstrVal = itemStr;* N% |1 v5 G' x% X5 l9 ^6 [. D7 [
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topicStr = SysAllocString((WCHAR *) L"system");9 M" O( V, C. O! a3 u, a- {
VariantInit(&requestVariant[1]);
$ w2 K2 |, {3 J) V requestVariant[1].vt = VT_BSTR;
9 y& d: _' o* m3 b7 @$ v. U/ C requestVariant[1].bstrVal = topicStr;/ \2 m# k d6 u7 K
+ z$ [% V2 ]0 ^
// Set the DISPPARAMS structure that holds the variant.' B2 c/ y2 J; a& T; J- e* W+ I# q
! K$ V0 S) {8 Z6 } i% \ dp2.rgvarg = requestVariant;1 q6 E) c5 ^+ z& u! Z' |" p, A
dp2.cArgs = 2;9 C7 p9 z& ^$ U1 r
dp2.rgdispidNamedArgs = NULL;
; H: b, \4 |8 {7 ^% G1 Z dp2.cNamedArgs = 0;: v+ c% k- A: b( V4 u" B4 h( }
) W/ |4 i j0 |0 c# }; p3 { H var.vt = VT_EMPTY;1 l" |# b) t# x6 y! _% f
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// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke( a, ? O- T* l& b* T
requestID," }& N" z3 X( _) l! N- O" _7 \
IID_NULL,
& N! d' h6 R" F" C' f LOCALE_SYSTEM_DEFAULT,- \6 }; E5 ~5 x* @# S y4 Y0 j
DISPATCH_METHOD,
2 Y5 q4 ?, J) A6 U; N &dp2,0 {& I; i* ], `9 o6 g( Q" V
&var,
* @" O) ?* m: T" i, `) f) c( \ &ei,
$ h/ d Z; Y' Q I" u6 V &uiErr);" O- Y+ u: M9 I& s- Y' K0 @
8 Z4 W. \$ y2 O/ n
SysFreeString(topicStr);
& o! G7 T. p) l SysFreeString(itemStr);
* a3 K( k3 k- m5 H0 a. q请问该程序是获得extend里面的哪个值?: T. ~! W3 v# 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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