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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：+ U F) x& ]: \
Name = (WCHAR *) L"Poke";
! d) Y5 q/ Y+ {8 O* n
, p4 M8 v" _* i Z( U hr = m_pDisp->GetIDsOfNames (
- w4 ?+ M2 ?* Q7 Y! d IID_NULL, // reserved
2 F1 d! L; \* z& k: r &Name, // Array of names to get IDs for
' J* {+ J2 T$ M7 M! y0 y& k9 c 1, // # of names in the array
; u0 y" @& `$ m0 D; u R LOCALE_SYSTEM_DEFAULT, // System locale# _: c. w% v: v' Z
&pokeID); // Array of IDs to fill on output
* B i; V7 @; I
$ Z" B: q3 F; p: N4 T! ^2 J8 j if (hr)' }, e6 x: s; T/ o2 `
{
( P# J# c0 X# e# P. U% s% b MessageBox ("Get Poke Unsuccessful");
- P& K2 C9 H( P3 | return;
/ Y/ z( g* y+ r1 J }
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/**************************传递数据给extend**************************************/
0 b# T/ q8 G; h/ F pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
5 R! a: `# J/ o/ b6 A. G # h0 M2 P! ~& K+ B$ K
valueStr = SysAllocString((WCHAR *) L"1232");
; b: x0 f v! k+ o8 ?# R. A$ ~ VariantInit(&pokeVariant[0]); * v& Z( V8 O- L" k2 r: O
pokeVariant[0].vt = VT_BSTR;
, A; M) B4 g6 t0 J pokeVariant[0].bstrVal = valueStr;
- b7 S7 S9 W* V2 F- [2 z7 I K( n! b% E+ z8 Q# Q
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
) }' G# \. H4 W" O$ F3 m& q f VariantInit(&pokeVariant[1]); - y. _7 K7 i T1 f9 D. O Q
pokeVariant[1].vt = VT_BSTR;
4 g' ?$ E* [ e5 T pokeVariant[1].bstrVal = itemStr;2 f3 w9 v8 L: Y5 i
5 t0 t( K/ y/ `: A/ m topicStr = SysAllocString((WCHAR *) L"system");
2 f) e' _2 [$ s7 W. | VariantInit(&pokeVariant[2]);
; i7 @5 A) D4 y, @( k2 O pokeVariant[2].vt = VT_BSTR;
; J$ R/ f1 l2 d3 K* V pokeVariant[2].bstrVal = topicStr;
/ N9 q S, \3 f8 Y1 x$ Y
6 v' E4 y1 u3 R/ E8 ^, B// Set the DISPPARAMS structure that holds the variant.+ W) M: P) N: I0 ~. w6 m
. f3 K9 X7 I W$ l9 C( I$ ?3 Y! f dp.rgvarg = pokeVariant;
2 H7 i# B$ j; X: _ dp.cArgs = 3;3 f6 B. Q7 D( B; Y z
dp.rgdispidNamedArgs = NULL;5 W% V- ^8 M7 n) r/ d" R
dp.cNamedArgs = 0;
5 G+ Y; C2 V1 l5 T( N& e7 V3 v V" Y& Y8 s8 h. U
// Call IDispatch::Invoke()0 |# r4 l! f8 B9 ~0 O: f4 Q( n
E* N5 [" a$ Q0 t% c; v hr = m_pDisp->Invoke(+ o. o2 n% y- ]
pokeID,
" v. x6 m: c4 l; D% x+ ^ IID_NULL,
1 _/ n% s% a3 O: l4 c LOCALE_SYSTEM_DEFAULT,1 y" Q; G1 A( F2 {# @0 H
DISPATCH_METHOD,
% L- v S; k' N$ \ &dp,; ~" d6 r/ k$ g$ t; Z+ j x- f
NULL,
. z$ n4 q4 o* u' `. |. a: ~' d &ei,
4 h7 P- {" i) m5 h6 ? D( \ &uiErr);
4 T* x7 ^/ _$ P- z8 e* @. }% [2 k
SysFreeString(topicStr);" f; [# I% f4 z ~/ Y
SysFreeString(itemStr);! f% ]* T% |. g, t5 f4 D% s
SysFreeString(valueStr);
; x6 K, k; ^4 u3 l a
, i. H( m" ^% l) i% z1 \# M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？？？# J* l9 p( j8 Y4 }* G" {
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？？？？7 G0 C: I8 P/ K- a+ R$ P) d
8 }/ y" {" K/ |* z
2 i, v- F. I5 v/ g5 _: k' V4 k2.这是request的程序4 x: ]) I3 e/ X1 B3 J4 Z8 o
// Request a value from Extend
) T! Q$ U; Q# g1 ?) o//
. c, X0 ?7 ~6 y- i4 a// Initialize the variant that will hold the BSTR. Set the variant's
6 g# S' B! M3 y- V% s( Z1 A// type flag to indicate the fact that this variant holds a BSTR. Place the
# V5 h; _$ A) M' A// BSTR into the variant structure.
$ ~& C9 F% \2 R. n3 ~
0 Q0 [. a* k( A! r0 G: Q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
2 j2 J4 R" Y0 E1 z3 `; o& k - m, ~5 n* W% `
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");* R! f2 B4 B T
VariantInit(&requestVariant[0]); ) Q. |7 ^0 h( y- S* R' s1 L3 C% w
requestVariant[0].vt = VT_BSTR;+ C! P6 ~ \0 \. o
requestVariant[0].bstrVal = itemStr;
0 h( D+ Z. U" `% t" P# X, r9 T* p; [- y+ `' m- s0 \9 x0 `
topicStr = SysAllocString((WCHAR *) L"system");
( a9 h( L4 w6 Q Q$ T6 D VariantInit(&requestVariant[1]); % ]2 v# W! x. T* I
requestVariant[1].vt = VT_BSTR;
1 t3 b7 \9 i0 ~3 K requestVariant[1].bstrVal = topicStr;
* l% E3 N1 P, q/ Y6 S) z7 k! T2 ~8 k7 h! ~
// Set the DISPPARAMS structure that holds the variant.( s. V0 M% A4 G) }/ W
! j- v( A* P: H6 O8 @/ G3 C6 M' U
dp2.rgvarg = requestVariant; ]- K% Q4 p( i6 T
dp2.cArgs = 2;
6 F1 k1 _( ^ R; ?* e; A dp2.rgdispidNamedArgs = NULL;
' H" Z) f; B. `" O! U+ Q4 X! a dp2.cNamedArgs = 0;
) O/ H8 c9 x2 Y. U* X- s( M$ {$ S3 n7 b+ L2 f: B
var.vt = VT_EMPTY;8 r- A/ o9 K& \. `' J
9 |1 |* W( r" O+ |) ~9 _2 V4 h7 e// Call IDispatch::Invoke()
) d5 i4 |& X( V0 g" j7 H
/ T: e4 e) \7 z8 E5 n hr = m_pDisp->Invoke(3 y. k6 O5 ]; Q: l
requestID,
6 H$ _3 ]3 w7 f! O6 I1 e9 M1 t9 } IID_NULL,! t% Q, E, l, A" x5 ^2 T$ |
LOCALE_SYSTEM_DEFAULT,5 T+ B, i# \& Z" j' q
DISPATCH_METHOD,
: C# S3 y9 r9 k8 [- z &dp2,
1 a) s. D A0 J6 e" c; ^- l4 Z &var,& R, b2 C* j$ F$ K
&ei,4 f- `" v2 C% k
&uiErr);) u& V/ C. R% p
1 H) K: k, O* B" G
SysFreeString(topicStr);% V E' x U/ o+ i
SysFreeString(itemStr);
) d |' L1 f. z0 H8 R+ \6 f请问该程序是获得extend里面的哪个值？. V' ^( J. m7 e/ ^( U8 M/ o" g7 `
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
