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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：4 X0 G. x8 E3 t5 p! I1 E& v% |& S
Name = (WCHAR *) L"Poke";) y* m Y) f3 A* y# X$ v& U
/ }3 t2 F, k2 }
hr = m_pDisp->GetIDsOfNames (
3 R6 ~/ ^& {/ B IID_NULL, // reserved% V. {! x: C; o
&Name, // Array of names to get IDs for
% ?4 a" [: f9 J4 ?: f9 N' e 1, // # of names in the array3 ^" T2 {: z J. v# a9 s% _
LOCALE_SYSTEM_DEFAULT, // System locale% R2 V$ N+ B0 h, F9 Z7 L
&pokeID); // Array of IDs to fill on output
3 g5 L; C- `6 P2 \/ \
7 D9 P9 p' G1 f* g if (hr)0 S5 [9 C% X- c: M" [+ M
{) c3 _5 Y4 Q# U4 V
MessageBox ("Get Poke Unsuccessful");. x; y8 ~% `8 l' M: {" i
return;
/ ]" H4 q" V2 S4 b+ S }
: @2 @. ?! F$ t
- H( U. t# m+ J- w- T( h6 S/**************************传递数据给extend**************************************/
& C! ?' g M* x+ ?. t pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
D) n$ T9 l: L7 E' ?2 v
( Y" ]% C" O+ E5 {. B! q% z, t valueStr = SysAllocString((WCHAR *) L"1232");
* V# a# R3 \! U( N9 _ VariantInit(&pokeVariant[0]);
& A- u! c: U: Y0 w' r8 c, T' c8 O pokeVariant[0].vt = VT_BSTR;
! Y0 o1 y% h$ @0 G pokeVariant[0].bstrVal = valueStr;# Z9 g5 ]/ s1 v
( x9 g. J* M- g
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
/ z- h4 t8 v8 t7 _ VariantInit(&pokeVariant[1]);
: w& O. c& U* g2 m" w. k& @3 {; ? pokeVariant[1].vt = VT_BSTR;
- d+ ~; l( J) v; e8 {1 K9 S; V pokeVariant[1].bstrVal = itemStr;% M2 Y) F, m. b, l
; a' V, M) _- Z, @; e- [
topicStr = SysAllocString((WCHAR *) L"system");
" F" S1 O9 F& l+ B! e VariantInit(&pokeVariant[2]);
' ?8 `( B9 z5 d3 P pokeVariant[2].vt = VT_BSTR;8 X& r2 G' }1 ^: y2 K/ A
pokeVariant[2].bstrVal = topicStr;
( w7 Y' J. W5 O* r
" }$ X: y+ v1 v* N// Set the DISPPARAMS structure that holds the variant.
2 e3 E Q( Y/ I+ c( S) B8 J9 D/ Y8 C* H2 {1 |
dp.rgvarg = pokeVariant;
}5 t: Y9 i7 n5 u7 A) m dp.cArgs = 3;* @9 }$ \ }5 h+ N
dp.rgdispidNamedArgs = NULL;
! H/ G: J7 _) F. Q dp.cNamedArgs = 0;) j0 Q: r# R% C8 {4 t6 H# \0 `; u
5 I ^5 E5 [' a- \0 E
// Call IDispatch::Invoke()
' X% L. _; O V1 H( J. \
" @. N+ v) |" B2 w5 t hr = m_pDisp->Invoke(3 i5 _$ Y" J. D1 d
pokeID,- G; A) F( @4 G) l: m
IID_NULL,# I, Q. x0 T$ S2 T! _1 Y) `
LOCALE_SYSTEM_DEFAULT,1 A5 Z7 V4 f; }# n; ~6 T
DISPATCH_METHOD,
L) |+ b3 ~/ |: H6 a8 N* _( O: A &dp,
1 N4 R ^* S( W7 c, f NULL,
- \! y2 A! J4 ^ &ei,
" Y) T" N9 w; |5 q* i &uiErr);4 m4 u& P: U0 v; e' \2 q; ]" d: X
# K# [* X. [. S" _9 y Y: V, w
SysFreeString(topicStr);* i2 [ X c1 Z
SysFreeString(itemStr);
, J/ d8 p0 t. @# }6 Y1 @ SysFreeString(valueStr);/ L" O; }; z4 J
( o! Q2 b0 {6 e1 V7 ^8 n& }1 O9 J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？？？
1 t1 e' G. ?. s% ?& O# j2 W( F/ A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？？？？
/ ?+ c/ |4 n' b0 E
0 s. m) a6 {/ P: w3 l: s
. L. W! u/ n& Y* b: j2.这是request的程序% L& O" m5 ^! O/ A
// Request a value from Extend8 e5 [4 E9 O8 k" M5 R3 Z" m
//
" b$ {" c5 H; G0 @2 L// Initialize the variant that will hold the BSTR. Set the variant's
8 H' c) F7 f+ R4 X3 L# r3 X// type flag to indicate the fact that this variant holds a BSTR. Place the
, y: H0 n% H: g# r) h// BSTR into the variant structure.
: G( b0 P5 p7 {3 P0 d6 |9 h
* o. a& H# Z; h0 D& ~ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
5 ]3 L2 H: I. T6 E9 s 9 u# t2 F5 a' _ Q9 l' V. u
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( \1 Q5 J. B* G
VariantInit(&requestVariant[0]); " T) i1 T/ o' K4 C" b; H" z/ T* U
requestVariant[0].vt = VT_BSTR;
i2 N( ~0 Q: p8 L0 h requestVariant[0].bstrVal = itemStr;4 k8 C" P# P H: @, O
9 d' M6 H1 |. V, e
topicStr = SysAllocString((WCHAR *) L"system");$ K" ^3 W; c6 Z1 D/ }
VariantInit(&requestVariant[1]); " C+ B$ Y { s n2 ~
requestVariant[1].vt = VT_BSTR;
8 Q0 @9 Z2 M# o4 u z$ r' V# \ requestVariant[1].bstrVal = topicStr;
8 s0 {5 u7 r i6 i# j$ R, p4 M7 p- g1 ?; w% R; m
// Set the DISPPARAMS structure that holds the variant.
6 `, ~9 `; U( A/ N* ?$ ?+ j2 m! ?3 {! K$ Q# d
dp2.rgvarg = requestVariant;0 }) B+ F9 W4 T6 I* _( L/ }* ^
dp2.cArgs = 2;
* j5 b5 v4 C5 o dp2.rgdispidNamedArgs = NULL;" x+ q" d, J- V
dp2.cNamedArgs = 0;6 u* J# h, d$ N, E+ U3 F* o
! M/ }* X# g/ ~* M" H var.vt = VT_EMPTY;2 B, n2 b* j& g9 Q: `
0 R; }$ n5 T2 i) k( d$ M; Q* S// Call IDispatch::Invoke()# Q9 q1 V- S, u5 J5 h
7 a% [( }* l1 {3 L' E hr = m_pDisp->Invoke(
5 I7 Z( N' D" @ p% z5 d requestID,
" g1 t5 d& w" R% L9 S IID_NULL,
8 O4 Y2 _: a2 o- m9 l( i; r LOCALE_SYSTEM_DEFAULT,( z, R+ y p" j1 x
DISPATCH_METHOD,8 P) A! s2 O" c; B" D0 g2 T
&dp2,
* Q$ a# e! F' G7 @$ j& M- ? &var,: n; \# ? S0 H+ T9 g
&ei,$ I# ?7 x1 d8 F ?
&uiErr);
% |/ ?+ c8 I, \) a+ k } b$ p; i( @6 L
SysFreeString(topicStr);) D! q4 m. L, ]
SysFreeString(itemStr);
+ ` s% j3 @3 { W1 ^请问该程序是获得extend里面的哪个值？
2 t6 N R6 N0 d8 N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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发表于 2008-11-25 19:37:03
