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:- E% F) j% E3 C3 x' t
Name = (WCHAR *) L"Poke";
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! Y; w7 q1 Y6 @1 P W% E/ h hr = m_pDisp->GetIDsOfNames (
, g z, n5 T) }3 p( S' ^1 @ IID_NULL, // reserved6 s1 x5 X: W2 t. a% z5 t- \) t- o
&Name, // Array of names to get IDs for9 d3 U2 p5 {: \
1, // # of names in the array
' q3 D* j; L' [1 l& T9 a) ?% B LOCALE_SYSTEM_DEFAULT, // System locale; c: p! }. R1 f7 p
&pokeID); // Array of IDs to fill on output$ D, j `2 G- e5 h3 g0 g% T
* {0 D3 ?% k' \+ r# m1 h5 l if (hr)/ T+ i8 R$ B9 @1 Q( _! Q( ]# c/ C# x
{: m& B' y: ]- {+ y% e" h* a
MessageBox ("Get Poke Unsuccessful");
% G2 ^! B2 D: V' u3 s return;
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' S9 ^% f( V0 N, D) B /**************************传递数据给extend**************************************/9 \# @$ N' f) n8 G/ V$ O
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);% I! i: [, n* ~/ m
0 E8 e5 V" [" T! O valueStr = SysAllocString((WCHAR *) L"1232");
- u0 v8 ~6 j" g! x, x VariantInit(&pokeVariant[0]);
1 m8 j" ^* X) f+ Y2 a' ? pokeVariant[0].vt = VT_BSTR;' c& y' y3 E: O0 d8 |8 i6 u
pokeVariant[0].bstrVal = valueStr;$ z+ V5 c9 @$ E4 K" r% b# V
7 z1 l+ f+ X" R/ Z H% N. O itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
& q8 c2 [8 D2 R9 g7 H e VariantInit(&pokeVariant[1]); * y' e7 x2 m8 e: n* D
pokeVariant[1].vt = VT_BSTR;4 G( y, G6 G4 I4 ]) P: ^
pokeVariant[1].bstrVal = itemStr;8 y2 h# y& O6 b' `/ q% E% k/ n
% M8 u# m! Q( I3 u4 V topicStr = SysAllocString((WCHAR *) L"system");2 b2 _. I5 P( y( K
VariantInit(&pokeVariant[2]); : M, S" B5 Z# }% H( [$ G
pokeVariant[2].vt = VT_BSTR;7 O& Y; A( ~. m P& N& ~$ c1 g- X* S7 g
pokeVariant[2].bstrVal = topicStr;. H' O1 |" x( L
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// Set the DISPPARAMS structure that holds the variant.+ F. d. X+ |4 E( M+ J
# L8 j0 I" k. R$ F" O) _! s dp.rgvarg = pokeVariant; C) ^& C0 O. l
dp.cArgs = 3; B% n3 P. f8 O$ Z" h
dp.rgdispidNamedArgs = NULL;
; {3 ]; Z6 W6 N b+ a5 n dp.cNamedArgs = 0;
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$ K" b5 H1 f6 q0 H8 a& A7 ~ // Call IDispatch::Invoke()1 v$ q0 h( w7 J$ b, T
o* t+ X8 b$ T a. V3 k) S! e: _ hr = m_pDisp->Invoke(# U4 I# `8 r2 h, N) E% y
pokeID,
1 Z3 ~4 k7 V0 E& {6 F% f B- B IID_NULL,
$ d/ A2 i2 n# X+ ] LOCALE_SYSTEM_DEFAULT,
+ h7 R# D# \' o H8 q o DISPATCH_METHOD,7 _! q: a- l. F% N
&dp,
+ Q, J1 G- ? V# K) S/ x4 ^. }, T3 @' \ NULL,7 N+ M" V+ L9 v# Q9 P) ~
&ei,
) {6 C+ x4 J4 q9 ]! D) i- A &uiErr);
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/ X9 [$ L( L$ `" Q/ s SysFreeString(topicStr);/ R' k. ~( V- R% Q Z
SysFreeString(itemStr); S2 ~- D* z( R9 n
SysFreeString(valueStr);6 Y% Y, D2 F% a6 D' r
3 m8 g8 [ @: U1 B! t 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 c" `$ j! H9 @$ U4 f" s- P/ E 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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" u$ I1 u* H" ]/ ]8 e9 ~$ c 2.这是request的程序! y! H6 d; k$ a
// Request a value from Extend
3 L0 o# u" n0 s: ?6 n //" q5 y3 s$ e0 G
// Initialize the variant that will hold the BSTR. Set the variant's
0 ^$ D% ^) c$ W$ K, W // type flag to indicate the fact that this variant holds a BSTR. Place the3 }* P+ O$ ]4 ^
// BSTR into the variant structure.- F8 I0 m+ f) S! I4 n% f
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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' N7 i+ T6 P4 @8 P9 l- V+ G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");% m0 ] z, ~- [
VariantInit(&requestVariant[0]);
/ J/ E. S( c3 M8 W) F* H7 k4 M requestVariant[0].vt = VT_BSTR;
. S& H3 @; e' \0 ^: x( | requestVariant[0].bstrVal = itemStr;) a8 l" m& H* _2 a4 Q. ~, I
! _$ i- B: J {$ n' x
topicStr = SysAllocString((WCHAR *) L"system");, Q- M7 R! h9 T. t7 o [" Y
VariantInit(&requestVariant[1]); 9 ]5 Y' p) x5 q- }1 p
requestVariant[1].vt = VT_BSTR;3 @/ s0 r) J, {
requestVariant[1].bstrVal = topicStr;+ }& D& ~- W. P$ n/ d& d$ Z
@/ d! k" ~8 V8 L% t+ A
// Set the DISPPARAMS structure that holds the variant.% P0 \& ]& z1 a. l
# G, n( n% s" C! W6 ]( n# H6 ]; v dp2.rgvarg = requestVariant;
; t3 n- Y" Q# O3 V dp2.cArgs = 2;6 U8 E6 x' h* p" l5 U
dp2.rgdispidNamedArgs = NULL;
( A; e- a4 V2 N2 ^' G9 x# a dp2.cNamedArgs = 0;
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var.vt = VT_EMPTY;
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// Call IDispatch::Invoke()* J0 l/ J5 n& q
3 h5 K! x, G: T hr = m_pDisp->Invoke() y; B2 r& j0 |4 M
requestID,) F. R1 v0 t/ l
IID_NULL,
2 q$ i5 G( t6 g- a LOCALE_SYSTEM_DEFAULT,
# C5 ~: \ @7 L. e5 G% L8 X DISPATCH_METHOD,' a" h. u* K$ c% o: D* L. R
&dp2,
0 R- C3 o$ E" x( v# e! z &var,
i$ D3 i& C' E7 F2 v &ei,
* w; v- b" c5 }( `0 e* ^ &uiErr);0 j3 g+ p2 j+ L. t6 _2 b
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SysFreeString(topicStr);9 E8 z l% ~8 F# F" d( O
SysFreeString(itemStr);, T8 X$ F5 P# w# O, T( H
请问该程序是获得extend里面的哪个值?
) A- N' O2 F) `) ?2 }& D* W 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