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 E# f- ^' ?8 b; J. P# E, X6 `
Name = (WCHAR *) L"Poke";+ q: r, o6 d: n: |4 B3 [( D
6 g$ G% n3 `0 D- E _# u hr = m_pDisp->GetIDsOfNames (/ `" U2 H4 A& k1 x, @
IID_NULL, // reserved
, Q( Y7 |9 a( c6 T$ X. c &Name, // Array of names to get IDs for
' k" i8 R3 X- M! `$ Z0 w 1, // # of names in the array
2 N0 V. q( e, Z5 T& `6 d LOCALE_SYSTEM_DEFAULT, // System locale" I+ o! y* D7 k, h) R$ G
&pokeID); // Array of IDs to fill on output3 H: g* \, j9 B$ s9 [- O
( T5 x& f9 O: I1 p" x$ d5 I if (hr)
" r' ?# o6 T1 _4 m. k8 q: g {! G# |+ u4 O2 D& G- R# ?
MessageBox ("Get Poke Unsuccessful");
7 K m1 w) i1 M" J! d return;
- Z; l1 z- y' ?) s }; ^; Y4 s5 C {
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/**************************传递数据给extend**************************************/) g+ L" A+ @! k( u1 y. k) H! X
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);0 D3 q/ `7 B; r, m5 N
q- W! J- t0 e4 l valueStr = SysAllocString((WCHAR *) L"1232");$ J( a( w7 u7 \5 A6 |% T
VariantInit(&pokeVariant[0]); & O# z2 T1 D0 ^, e4 e0 ]0 X
pokeVariant[0].vt = VT_BSTR;9 S0 Z( X3 S7 J
pokeVariant[0].bstrVal = valueStr;
/ A& q' [ {) X+ p1 p" l9 j
c/ q# n+ X8 ?, \+ l0 i itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 O% G, C/ a: e, v8 u& v- ^, ^ VariantInit(&pokeVariant[1]);
/ k4 \1 s+ e5 |& w. Q pokeVariant[1].vt = VT_BSTR;! \5 p' A! Q: i: V& E
pokeVariant[1].bstrVal = itemStr;2 `1 u, J9 c5 ^ p4 R; o) v
. q# C3 `7 O3 S5 W topicStr = SysAllocString((WCHAR *) L"system");- K% D p4 a+ M: ^' _
VariantInit(&pokeVariant[2]); ?% L% }8 f6 c( j- R
pokeVariant[2].vt = VT_BSTR;
* A" k) g: w( L pokeVariant[2].bstrVal = topicStr;
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// Set the DISPPARAMS structure that holds the variant.# s" v/ A3 m1 ?; }4 W" L+ E" r# j
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dp.rgvarg = pokeVariant;0 ?! x5 I& o) ?
dp.cArgs = 3;- e5 J! M) ~8 s5 e8 m U; Y6 ~
dp.rgdispidNamedArgs = NULL;
% V8 [% ?( {! S3 t dp.cNamedArgs = 0;$ x) Q$ ^ v8 I
4 k- J$ o& ^) `6 s' |: _* g // Call IDispatch::Invoke()
, J) @, b( u7 o- [- n8 n# f1 e1 |6 ] . f/ h% M9 K5 w- P. m+ A" m/ I
hr = m_pDisp->Invoke(
" W! W# l" h% D pokeID,+ f7 ]$ |. g1 [ _# ?
IID_NULL,
% o) Z& t8 T( }; x9 V% r- l LOCALE_SYSTEM_DEFAULT,
" r; n6 M; p/ o/ R0 d! F6 h DISPATCH_METHOD,
5 h, [! l& a- |4 `- @ &dp,
8 K1 z, V t) |! Z: a" X1 Y NULL,1 k2 ?3 T. M8 a+ ^5 l6 S2 l
&ei,4 S. x" q% ^3 I: T( [2 ^2 a
&uiErr);+ L7 d% v, w, P$ S* S& ?
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SysFreeString(topicStr);
, I& B! B% Q4 r* W( }2 t+ |( g T SysFreeString(itemStr);
V" W v6 J3 o \8 }/ z; | SysFreeString(valueStr);
! @+ P" ^9 p4 v: y% I, @) x 9 ^$ T+ L2 w+ n- t$ h
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???
. ^/ l% |; h/ C( ]6 Q5 F6 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????$ m. |* j6 M0 Q( z1 x+ u1 E5 I* F
( w6 t3 l3 m# k
7 | G4 Z$ n# M8 U) \# y/ E1 d 2.这是request的程序+ h/ |6 u6 F% H
// Request a value from Extend
+ x( v3 T; `3 z5 A8 D- C( { //- a& A5 [% e8 ?
// Initialize the variant that will hold the BSTR. Set the variant's' z# s5 ^6 z& a2 h2 ]% R
// type flag to indicate the fact that this variant holds a BSTR. Place the/ @" M# M1 t5 f6 ]
// BSTR into the variant structure.
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
3 y3 H/ d- b& P# h VariantInit(&requestVariant[0]);
; _% `" x5 k9 A requestVariant[0].vt = VT_BSTR;9 p+ S7 n; N4 c5 T/ G
requestVariant[0].bstrVal = itemStr;( L! b9 @! E0 k* T# W+ ]6 e' d
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topicStr = SysAllocString((WCHAR *) L"system");& N$ N$ O7 @( C) F" S# T' s
VariantInit(&requestVariant[1]); Q# |7 S3 \' m' K
requestVariant[1].vt = VT_BSTR;/ B8 N: x' c5 a$ l+ @" ` k* k: ]
requestVariant[1].bstrVal = topicStr;
* {$ L0 }5 _ {5 U2 r, l, S
7 V" a( d) Z p/ u // Set the DISPPARAMS structure that holds the variant.; f6 j! H8 A: ]" W7 @1 k* [
& Q) u$ y5 X: q; g* M) ?$ X6 z
dp2.rgvarg = requestVariant;
5 ?, A; z( \1 N3 N dp2.cArgs = 2;0 n& V! [5 Z% R) H# z. O }
dp2.rgdispidNamedArgs = NULL;" Z6 h# }, a/ w, \
dp2.cNamedArgs = 0;" C* O- X) Q5 H, k
# r' `6 v* e3 _3 I& l6 T var.vt = VT_EMPTY;! x( y& w7 ]8 u3 E8 c
8 Q# G8 j$ G/ D0 ^+ C // Call IDispatch::Invoke()- Q8 g6 U2 w" I4 s
& g& `1 c) w- a0 t& z7 M hr = m_pDisp->Invoke(9 F$ U) A# \" T
requestID, |$ _4 F" @# u6 I+ ^" w
IID_NULL,# p) X$ a0 a& a$ t9 Z
LOCALE_SYSTEM_DEFAULT,
. u. N; S9 a+ W$ w4 @0 }# q DISPATCH_METHOD,$ P8 X' }: @ R1 B) q( q) w# S
&dp2,
" q. c) J+ d& R &var,
3 L9 X5 d1 P$ s &ei,
( p- t8 O5 U- \" @- ^ &uiErr);
4 P2 }# t6 B2 A
4 Q, _7 F/ ?# T3 N a4 h8 L3 _. K0 I SysFreeString(topicStr);
! Q' \( F% b$ P2 e! [ SysFreeString(itemStr);
) q( O: }/ G3 A* r4 ^ 请问该程序是获得extend里面的哪个值?& j8 u+ F& } Y3 h$ J4 Z0 H
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