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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:0 C$ J4 J+ q; O% R
Name = (WCHAR *) L"Poke";
4 P0 h+ O2 Y: I0 ~ $ q" O: Y2 [1 l9 e2 S7 Q6 ]
hr = m_pDisp->GetIDsOfNames (
3 u+ n2 |7 [; e1 y4 \1 P _ G& q7 t IID_NULL, // reserved
" O! l% i, |! F/ w% _( n, _ &Name, // Array of names to get IDs for
# x3 Y+ l' I: D9 u( j C- a 1, // # of names in the array R+ K9 `, y' f6 O& M& m' N
LOCALE_SYSTEM_DEFAULT, // System locale
F, W3 }5 p: H &pokeID); // Array of IDs to fill on output3 O8 l5 O4 a5 l+ L/ w
5 m+ f- x& ~% b: N; ^( A; g if (hr)& R/ F5 r- R% o0 L; n, y/ d
{
. V8 Y1 B1 s! M; S% i MessageBox ("Get Poke Unsuccessful");
1 f( ^- e% i: h# Z# L1 C {( Z return;
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/ d+ |$ N2 I8 @* A7 \5 ~* L& \$ j& t/**************************传递数据给extend**************************************/
7 @5 T4 C0 ]4 j. y pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
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0 |: O% n! P6 Q valueStr = SysAllocString((WCHAR *) L"1232");7 _! I' l. {* D& k, \
VariantInit(&pokeVariant[0]);
1 b* [: w* [7 s/ M$ s pokeVariant[0].vt = VT_BSTR; l1 S5 M8 X3 R; T: m
pokeVariant[0].bstrVal = valueStr;- s5 M. Q6 S4 C& ^. n6 g
! u2 e8 d2 a" z Y5 S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
% c& j3 d2 u' V5 i( s! U* q VariantInit(&pokeVariant[1]); ! r8 j) c4 s- i) R* ?
pokeVariant[1].vt = VT_BSTR;
/ J, Y1 T/ j2 B3 e2 z% ]- |! c pokeVariant[1].bstrVal = itemStr;3 q( {- G$ R! T0 J& @. F
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topicStr = SysAllocString((WCHAR *) L"system");
; d( H) E' I7 X3 t. Y3 p. Q p" J VariantInit(&pokeVariant[2]);
* J0 } i: V# ~( l7 X* a# t pokeVariant[2].vt = VT_BSTR;: ]4 `3 J" n3 }1 m$ o! ]0 T
pokeVariant[2].bstrVal = topicStr;3 c0 D7 F) ~- l: J4 T( O; v! D3 u0 X4 }: I
6 T* [5 ]5 Z- F* A' L; {8 S// Set the DISPPARAMS structure that holds the variant.
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5 z5 e. W( p& K" k& Q- L dp.rgvarg = pokeVariant;7 E/ d. i; S, P: f& x" O" W) H
dp.cArgs = 3;7 t. f* W" p$ j" Q$ c5 A
dp.rgdispidNamedArgs = NULL;
( V# ]/ ~5 D* n4 e3 k* g8 W dp.cNamedArgs = 0;
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// Call IDispatch::Invoke()' W1 {5 R4 X+ S" u0 z
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hr = m_pDisp->Invoke(
4 g( z1 ^. K# N m* j pokeID,0 Y2 I- w% p/ X. Q! `
IID_NULL,
+ d( ]. r; r9 c8 ~9 e4 o. X B3 z LOCALE_SYSTEM_DEFAULT,$ i9 X2 q9 \- w/ _& W, P: C# Z9 S
DISPATCH_METHOD,3 x& \8 V' f" U+ C2 t: E2 T0 J6 a
&dp,
( u3 _' l( C1 E8 } NULL,
0 r( T' Y1 t, V" X# ^8 I( [ &ei,
Z# f+ U1 T9 Y0 t, B% J o &uiErr);% d0 p' f. ~* M) g
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SysFreeString(topicStr);6 u3 n+ h6 C/ d( i1 K
SysFreeString(itemStr);
6 f0 n* l3 y# U) i) ?" c! F" L$ A SysFreeString(valueStr);/ s0 ~4 A2 f1 h2 R8 j
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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???8 A" }% _/ q- [( V& ~
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* T2 K [2 M# F; S: Z3 |* ?7 B- n4 C
// Request a value from Extend. c* }$ Q) M2 @3 h$ F
//
/ `7 L, p1 }* Z" l5 E. Q0 M4 q// Initialize the variant that will hold the BSTR. Set the variant's
9 z6 H, N# J( S I7 J3 X/ t# e// type flag to indicate the fact that this variant holds a BSTR. Place the- L- {3 D; H B0 ]+ g# X
// BSTR into the variant structure.
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$ `+ P* _; M: ~ e6 G requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
- c, y; \0 F& N3 c& r
7 m7 ^; Z& ?9 T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
8 \" Z& H7 E8 t VariantInit(&requestVariant[0]); 6 {8 B6 R1 f1 ]7 v
requestVariant[0].vt = VT_BSTR;
9 ?6 o+ R1 u; I, l- l requestVariant[0].bstrVal = itemStr;
; `: ?0 i7 R& T- w( C
4 y! h: ~" U/ w2 a: D topicStr = SysAllocString((WCHAR *) L"system");
, k( K P& ?2 n VariantInit(&requestVariant[1]); 1 v0 V: A& T1 s* V" C/ S& [; g
requestVariant[1].vt = VT_BSTR;
$ L0 L; F6 p+ n& b requestVariant[1].bstrVal = topicStr;* V |8 \1 T- X4 `3 I( W: v
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// Set the DISPPARAMS structure that holds the variant.
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! g& {- Q1 E5 D. d0 L" G dp2.rgvarg = requestVariant;. T& a, B |- e) G* k4 D
dp2.cArgs = 2;
8 I7 T! [3 y% S& P, _' K. m dp2.rgdispidNamedArgs = NULL;2 J1 x7 T, L9 R( x$ Z
dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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' @3 O& u7 [/ N$ F0 ~7 J// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
4 @2 j: E* ]$ {5 K/ i( b# k* Q5 } requestID,. q3 r- a% m" M) I' C; F
IID_NULL,
3 R7 o1 L" U, q w7 b LOCALE_SYSTEM_DEFAULT,
0 u4 y8 T0 K/ [7 O4 P9 i DISPATCH_METHOD,% ~* H. W! D% J% b6 I
&dp2,4 E" s0 s/ h% L9 f+ y9 h5 j
&var,
+ j# v; X6 p( `' d9 j* c &ei,' i$ M8 S& y9 V' i" N7 z
&uiErr);
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SysFreeString(topicStr);7 m9 }6 r$ k4 Y# L3 e) |/ r! E, D B
SysFreeString(itemStr);
' X' q5 x6 g: X4 E a请问该程序是获得extend里面的哪个值?
1 i, `* S5 r* r) ~1 ]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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