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:
; m/ e5 Z1 p& R+ s5 z" o6 J( p Name = (WCHAR *) L"Poke";' C: n( p% }$ e# A. u
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hr = m_pDisp->GetIDsOfNames (
/ E) Y7 t' h6 H- l IID_NULL, // reserved5 \+ Q2 F& p# g) m' ` J9 k
&Name, // Array of names to get IDs for0 x* P. V4 _ G# U
1, // # of names in the array
: P* d; h0 I/ r LOCALE_SYSTEM_DEFAULT, // System locale
, c" L- j8 @0 S/ N2 E &pokeID); // Array of IDs to fill on output) z( n1 H3 v3 N! C( b
. S. P+ M- p% A if (hr)
) u) n9 |6 \6 N0 L {
& H% m) w0 P% [% h: c: p: g MessageBox ("Get Poke Unsuccessful");
! Q8 J+ e/ u6 _6 @- F return;
0 A9 e A7 y8 w' m( c }
& t, P9 ?8 {; ` , i2 t4 f' D0 [) V2 T
/**************************传递数据给extend**************************************/- ?+ F0 @6 A# H$ Y4 Q, g' Q( h L" y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
# A2 }1 ^* G0 r' {2 p8 f3 s + _! b# K2 v/ @% a# P5 J
valueStr = SysAllocString((WCHAR *) L"1232");+ u9 @1 w6 R- w. ?' U |$ R; A5 `
VariantInit(&pokeVariant[0]); ! k$ {' j& N8 C# n. L2 y1 v* w) K
pokeVariant[0].vt = VT_BSTR;) q* c. X% b# r6 H* z: e0 S( `
pokeVariant[0].bstrVal = valueStr; a8 N$ ^, o6 ^; A6 o4 Q2 x1 W
6 Q2 ~6 m) [" V# g0 f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");2 O% K p5 t0 ~1 r
VariantInit(&pokeVariant[1]);
1 `) `: Q, E H) H* ]+ r) O: G pokeVariant[1].vt = VT_BSTR;* X, u5 d, l4 k7 a" v* P
pokeVariant[1].bstrVal = itemStr;% ^; F# g0 c. L" u
" S) o0 A# |1 H0 v; W topicStr = SysAllocString((WCHAR *) L"system");
9 K, J* S) r# M% X+ N) V VariantInit(&pokeVariant[2]);
2 l9 c1 z; j r8 }# g5 V pokeVariant[2].vt = VT_BSTR;5 m& ]- f4 |% J/ t8 T# n. ?& P9 y
pokeVariant[2].bstrVal = topicStr;" A% E) o+ x) y) H; c8 j2 D
/ |- ]6 A4 G/ J' e8 k9 _. W // Set the DISPPARAMS structure that holds the variant.! U1 R- b5 ?2 a2 ^& d8 q. I
! U1 X3 m+ h3 ^+ H
dp.rgvarg = pokeVariant;
" P' ^ y- }: K! }2 \ dp.cArgs = 3;! P3 i% H" z5 `! [7 y- n# S3 ?) }
dp.rgdispidNamedArgs = NULL;
T V% f( C- X a# H. X6 g dp.cNamedArgs = 0;0 ^$ q0 {& ~' M) T
! e( T# `( [8 a1 }1 H' p
// Call IDispatch::Invoke()1 I1 r* g0 i0 k1 `2 [$ x9 ^" u& V
0 w. _* @+ a" ]2 N, O i X hr = m_pDisp->Invoke(2 q5 _' [$ Q- w& H+ q1 z
pokeID,
' }9 W; m6 w& S& U1 g- M IID_NULL,0 S- L$ [- D, v
LOCALE_SYSTEM_DEFAULT,8 a2 X+ }" `( p) H2 K/ J' E
DISPATCH_METHOD,
1 E& U- L: i% r7 G3 o8 ? &dp,1 b, Q" z# B! K' G! Z
NULL,
2 Q# @4 x7 o& m4 V9 I &ei,
1 d1 P+ A1 u0 F7 F3 ] &uiErr);; _0 T* |" T2 e$ h( p4 G+ [) t
. S2 S6 A* @* i$ H6 h
SysFreeString(topicStr);% v) _: D0 I0 G, q. B7 S4 W
SysFreeString(itemStr);
( F, y5 o8 ^5 ~5 _) \ SysFreeString(valueStr);$ Z$ F4 z0 [) `
- B* |5 S& E% @' r& C 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???0 i" V! t9 X1 U* s
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????/ l# k% L2 `$ \$ a: U! B, T
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2.这是request的程序
9 U" H+ p. w2 Z, N& K // Request a value from Extend
7 M. Z" Y9 b s5 ?' E //
% U( V1 G- B; H& [4 x2 T! ^ // Initialize the variant that will hold the BSTR. Set the variant's
9 b4 C& Q1 k7 s; S9 T8 V. | // type flag to indicate the fact that this variant holds a BSTR. Place the
) { u, c, Z ^2 K' ~ // BSTR into the variant structure.
3 G R0 @9 I# X
' W/ N3 s5 g8 `1 Y requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);+ H1 ]% L. i( V
/ a$ u3 ^0 [/ `3 R itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
' R5 n5 }! ]6 v, y/ M' g9 c4 v VariantInit(&requestVariant[0]); : l- K0 _* W0 Z, B8 f& q& O
requestVariant[0].vt = VT_BSTR;
4 O: d5 V/ V2 Z& [ requestVariant[0].bstrVal = itemStr; F6 u/ v: J% q+ X6 R' d
( x* S$ B+ x" @) }( u! p9 n; {6 L topicStr = SysAllocString((WCHAR *) L"system");
- A( Q/ j/ L- Y6 @6 m+ M- N VariantInit(&requestVariant[1]); $ |0 q L+ l' _. J* i
requestVariant[1].vt = VT_BSTR;
( _% H! {' D) v% v requestVariant[1].bstrVal = topicStr;) }: W# x6 D8 l e
+ G' T- J+ @! P // Set the DISPPARAMS structure that holds the variant.
2 d4 r! l; ]# ]1 q) W3 A+ q 2 K5 M( C6 _- b
dp2.rgvarg = requestVariant;
- Y" r4 [8 q# ~( D dp2.cArgs = 2;' e3 Q0 ` }# o4 ?. ~
dp2.rgdispidNamedArgs = NULL;
9 o0 u8 f: B! n( O6 t4 n# H dp2.cNamedArgs = 0;
# W1 H7 A Z0 S3 Y2 g7 M8 v
9 S5 F/ a) v; _; p* r% @ var.vt = VT_EMPTY;8 }, Z5 c7 W) |0 `6 ~3 O7 ^
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// Call IDispatch::Invoke()
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- U% g5 j9 L& A/ |0 @/ K+ D hr = m_pDisp->Invoke(2 D8 x% M" Q8 N* L* s1 H
requestID,8 q& I/ d1 d5 f& s6 W
IID_NULL,
# u6 \+ q/ r. j3 x- c LOCALE_SYSTEM_DEFAULT,
- o9 `% X+ b; h; `5 r DISPATCH_METHOD,
3 A( Z/ a% i7 e1 F# I' r &dp2,7 b( ~+ _. h/ B( [* x% g: r4 |7 a
&var,
' r8 Y+ S3 X* v; c$ Z$ C J1 u &ei,
z: ]- B4 [5 }' t& Q' h1 k &uiErr);; J" P3 X( a2 p. L; A, K
# h! m \+ R% p' z SysFreeString(topicStr);9 |& t3 [2 y1 j
SysFreeString(itemStr);
$ g5 h/ K8 `9 | 请问该程序是获得extend里面的哪个值?
8 w, I% [$ U. b% A 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