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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 }: {4 Q! b, t( H' [
Name = (WCHAR *) L"Poke";) M% `% ^2 f! o( B( `. Q: D. A; \
1 V+ y. t0 Y5 r; j" {
hr = m_pDisp->GetIDsOfNames (
+ X8 N1 d- F4 @$ N* d1 l% c IID_NULL, // reserved
/ A- G4 {& b' v5 Y& Q9 ] &Name, // Array of names to get IDs for4 d3 o+ {8 e. x' u+ M
1, // # of names in the array i$ X) t- V: J) ?# i7 {
LOCALE_SYSTEM_DEFAULT, // System locale6 t; w+ r4 V- l% w2 W9 E' L. Y
&pokeID); // Array of IDs to fill on output1 E7 P/ o: x) d$ _. ` j
2 h/ Y9 w# o1 \$ a# Q
if (hr)8 _5 Q- i/ L- Q& j6 W3 W
{
" n& v- ?# t% u7 ]7 h MessageBox ("Get Poke Unsuccessful");
- r- }$ m! ]! P" y o& F& | return;& Z! P5 ~9 K, j5 J* D
}9 _- W7 ]( v% N6 X+ t
2 ` e, n1 \- S( i& g9 a+ u- w0 P/**************************传递数据给extend**************************************/! z, |; }. I, t. a6 s6 @
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);8 ]& M. V+ ?+ h) U' Y' i. l, z0 I
1 `' f7 ]. x* b! o6 G8 t$ g
valueStr = SysAllocString((WCHAR *) L"1232");
, `7 K- I ?/ B# x& P4 | VariantInit(&pokeVariant[0]);
# ]8 ^ Z0 } q: J2 ]+ D( {/ F+ X pokeVariant[0].vt = VT_BSTR;
+ p- y( t1 {7 X: ? pokeVariant[0].bstrVal = valueStr;
) p5 a4 G& |% k. @- v8 u0 Z `5 \# t* V& R w. T- t C1 _
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, c P) `/ r% h
VariantInit(&pokeVariant[1]);
! u1 K# I" m# M pokeVariant[1].vt = VT_BSTR;/ R$ D& F3 ^8 u4 c" D
pokeVariant[1].bstrVal = itemStr;4 r/ p, _. O) I6 _5 i. H+ V7 R
6 y5 u, S$ j* _7 D( C5 o. m
topicStr = SysAllocString((WCHAR *) L"system");4 r# R( B- R& z% t9 V9 I
VariantInit(&pokeVariant[2]); 9 j2 f2 a" E+ n) Z
pokeVariant[2].vt = VT_BSTR;
+ A3 _5 j* t1 x, v8 Z pokeVariant[2].bstrVal = topicStr; |, `. `8 O& j
( [/ H6 c' L) B5 L! x1 N, G// Set the DISPPARAMS structure that holds the variant.7 u8 O& F# u% e! n
$ G. e5 z d. }7 X+ N dp.rgvarg = pokeVariant;; m& F$ q. V0 s) g- p& W
dp.cArgs = 3;
, }1 c: h4 T5 l8 c6 O1 ~' } dp.rgdispidNamedArgs = NULL;
' l8 b3 i+ @9 d6 ]- ~4 A dp.cNamedArgs = 0;5 K2 n; \/ n; B9 r, l" v ^
/ _. j, @9 z4 I// Call IDispatch::Invoke()6 [. O- K, w* f4 ?9 O: [
' A, c: n4 M R* g hr = m_pDisp->Invoke() E9 |+ ^7 Z' ^+ M: P6 d1 {+ I
pokeID,. D. d# } {% r: H5 \. r
IID_NULL,
2 {4 J! L$ h& Q( u) a$ Y LOCALE_SYSTEM_DEFAULT,
1 |/ K. T" O8 O DISPATCH_METHOD,
3 I7 B0 J' F4 @+ ~4 n2 x1 K+ b! R &dp,
: s$ w2 ?! Z! Q7 q NULL,8 J. u$ }, W. @9 K: `# M
&ei,
) N& Q9 T7 p9 I" S/ M &uiErr);
9 ^, U. z: G9 i9 S& ?2 B3 C+ _5 N6 {
0 G0 R, P/ {3 d1 _/ w SysFreeString(topicStr);& d+ K' C8 n* c3 h( p X8 ]
SysFreeString(itemStr);( P, a5 b# t4 ~8 j2 m) [
SysFreeString(valueStr);
# h1 N: c& H- u7 r( M' b
" I2 ?$ i. ?0 h% m, M/ V2 K: F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???
; O b7 L3 V0 h: 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????
& D- f5 v8 C' Q6 x2 {
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2 W0 A3 v2 w& p ~3 B, D. O$ A& y2.这是request的程序
1 S0 I, {! F* |! j3 a" Y! k L// Request a value from Extend
% g" R; [2 j9 G3 t% P8 C: O//' d% k/ d4 Q. H- I/ b9 B* x
// Initialize the variant that will hold the BSTR. Set the variant's7 U( b/ \" y* K! w5 X% k& u
// type flag to indicate the fact that this variant holds a BSTR. Place the2 _% _ ?* v! p) ] ]0 ^. f/ l9 I
// BSTR into the variant structure.8 _/ Y3 q. A# N0 s0 p
% ?8 ~$ N) ~& ?1 X requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);, `7 r# b8 K5 g) z, e
# ~* d, r P9 Y- I9 Z* Z
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) O# h7 P( F! c2 ^3 F. l" p7 ] VariantInit(&requestVariant[0]);
9 v3 [0 \/ _4 ^+ }8 i) R/ a" G4 ? requestVariant[0].vt = VT_BSTR;
6 y; ]: ?4 }$ @4 L6 e3 F requestVariant[0].bstrVal = itemStr;
: q; t7 f3 I7 ]: Z6 a
7 q3 e$ k- g7 A' @ d9 e* y topicStr = SysAllocString((WCHAR *) L"system");
+ {' z7 ]7 _' ? VariantInit(&requestVariant[1]);
" T- r2 u7 o5 X+ \& C2 a' @ requestVariant[1].vt = VT_BSTR;! [1 Q8 b8 X0 r% f" g+ O
requestVariant[1].bstrVal = topicStr;
3 \+ s( d* {: u! ]) }/ x6 G7 `1 P/ e ?
// Set the DISPPARAMS structure that holds the variant.8 ]+ B; d4 V, i5 Y e% }- v
. q+ t9 Q. h |# [: E" s
dp2.rgvarg = requestVariant;
( o" u4 Z; |, x: q dp2.cArgs = 2;4 Y2 w7 ]( ~' z- {# B
dp2.rgdispidNamedArgs = NULL;
+ @* L B9 A) m: } dp2.cNamedArgs = 0;+ f% |9 n {2 ~! r+ |0 |, |, L
7 o* F/ _2 U: {% }4 X$ V b var.vt = VT_EMPTY;! R+ f. V9 I5 ?% `
8 g# d9 {$ t( _/ d& E
// Call IDispatch::Invoke()- S! D1 U- v6 w z, \' H& A9 R
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hr = m_pDisp->Invoke(. P4 `, k- \1 F* F
requestID,
% N Q: A; I4 Y6 G IID_NULL,, @! y3 X- v" s! c$ |
LOCALE_SYSTEM_DEFAULT,2 Q" z7 u) M( s/ m
DISPATCH_METHOD,
. V- w5 @, E5 ]8 ?/ P &dp2,7 ]1 m, H4 s" i) @2 ]3 A2 K
&var,2 b1 X0 `$ R3 @
&ei,1 K" I+ u3 @& m' G% q' b0 _0 \; d
&uiErr);
5 c" _9 D2 `4 f% O
: j o, s6 p$ @1 @ SysFreeString(topicStr);% g+ W; m6 M2 G7 z
SysFreeString(itemStr);7 b% G4 d4 p P; d6 `2 j
请问该程序是获得extend里面的哪个值?
* Q6 C! y6 k1 X" Q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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