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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：
) p4 f% Q+ h& w$ u6 a- |" K2 rName = (WCHAR *) L"Poke";
, z9 J9 N! f' T; ?' u$ ^" Q8 K 9 C, K0 G) u3 ?& c
hr = m_pDisp->GetIDsOfNames (
1 c% c2 V" L/ _ d; b5 _ IID_NULL, // reserved
; I; E, O* R2 z: ?+ X4 S &Name, // Array of names to get IDs for$ B1 g2 n' \6 C8 P
1, // # of names in the array
5 E7 d" |; F6 {; @/ A" A LOCALE_SYSTEM_DEFAULT, // System locale
+ m$ m* B0 f: t* `/ X &pokeID); // Array of IDs to fill on output
: K7 q5 H0 M) a1 z! j" n# w
/ d9 }/ d8 T0 l if (hr)
( A, I7 Z9 S. r% T {
' m9 I! M; Y8 f; z MessageBox ("Get Poke Unsuccessful");5 ~$ A8 V) E+ g
return;
, N; O7 W# F) e x. {! N }- D7 C4 }* B% ~2 I( }5 q. V/ Y# J
" N/ E( @! }' X/**************************传递数据给extend**************************************/
! C: D( L( Q* `- x2 q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
4 ~, W& E2 u# q- v1 Y2 D f
4 E \' q0 `0 s$ [" ?+ H% ^ valueStr = SysAllocString((WCHAR *) L"1232");3 p) ]$ {1 Z+ u5 ~% `; s
VariantInit(&pokeVariant[0]);
) U. K5 Y$ y) L. ?1 D5 h( k pokeVariant[0].vt = VT_BSTR; o% Z; p6 b) E! g) K4 k3 K6 l
pokeVariant[0].bstrVal = valueStr;
2 Q9 k4 \, H& L/ Z4 G
7 Q( n: e; h* G1 X7 L* s/ B itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); y" h3 m7 C" f+ A! Y: U
VariantInit(&pokeVariant[1]); " n5 E9 W. F9 Z: x) |, @: E9 `
pokeVariant[1].vt = VT_BSTR;. N1 Q7 I. t# T
pokeVariant[1].bstrVal = itemStr;- x4 s0 U1 s$ l8 ]6 |3 }2 s% ~
& P' g- {6 Y/ x! y- G1 T0 F topicStr = SysAllocString((WCHAR *) L"system");! p! p1 C9 _9 h: N9 @+ b m( {
VariantInit(&pokeVariant[2]); 4 P' R7 _9 I% e; g. ~7 r+ h. s9 j+ V
pokeVariant[2].vt = VT_BSTR;
2 D" J! X7 J$ [8 t5 t! U pokeVariant[2].bstrVal = topicStr;2 F+ H- ^3 M4 b: i) S) R) N9 l0 P
" B7 R" \2 Q/ j// Set the DISPPARAMS structure that holds the variant.2 n$ e* l* B4 ]- _( h* P
5 H0 Q* m8 r$ o1 [ dp.rgvarg = pokeVariant;3 _6 s5 ?! G* o4 O
dp.cArgs = 3;* r7 @/ d4 j# m- H( n' ?: A `
dp.rgdispidNamedArgs = NULL;
. S! D8 e+ d+ [ dp.cNamedArgs = 0;7 H& j% j" M+ A, F' o
: _! G5 H: ^9 C4 Z
// Call IDispatch::Invoke()% \3 x' W/ s! l. U
& b! r+ ?/ i7 z* w4 i hr = m_pDisp->Invoke(9 K O4 X7 K2 ?1 _' Z
pokeID,
# ^$ B, @+ D6 T& D( O IID_NULL,
$ v+ P* v0 B+ a q6 x7 j. W4 g3 W3 a LOCALE_SYSTEM_DEFAULT,
8 P% d6 W% K: Y5 [5 f, i1 A DISPATCH_METHOD,
& o! u6 a) x7 [ &dp,! C) b1 a) q, g
NULL,. @4 W4 C0 h0 ]2 v/ f; I
&ei,
% `3 k6 @6 Q6 S' L: H {) Q1 e &uiErr);' D' f: c" M2 \2 Z
5 w c" p! j0 Y
SysFreeString(topicStr); r t4 R6 t# u3 y4 Z
SysFreeString(itemStr);* x% v- X; s) j3 j9 \5 L. j
SysFreeString(valueStr);9 ~+ ~* _' z* F2 W: p2 J+ Y2 A! N8 b
^ C' `0 L( @5 o: X5 f7 k% d4 s
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？？？
5 K6 h- R4 E, Q/ y! e3 ^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？？？？ `3 x* Q$ y8 C. \
/ L, o! X7 e7 x
8 e3 Q8 J+ |7 ^" o# J2 w+ y2.这是request的程序, |( a! T7 D. t5 n6 H- G
// Request a value from Extend
! H2 V W! R. q0 B& {' |7 ]// e+ u% L4 y# t
// Initialize the variant that will hold the BSTR. Set the variant's1 Q3 r8 n) h" i' W
// type flag to indicate the fact that this variant holds a BSTR. Place the
% u; ]1 v6 H0 H8 M% O1 N( t4 Z8 P7 ^// BSTR into the variant structure.
- C( {/ o1 S0 W6 C8 ?; b6 w" N7 E. ^+ f9 s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);1 v6 J2 u. Y* o \4 m. Z2 x
2 H0 e6 G5 a, R+ R' @8 ~$ E
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
2 d v# p+ F. C4 y0 I; D VariantInit(&requestVariant[0]);
/ k" u' T4 K7 i7 F8 M: l: i0 { requestVariant[0].vt = VT_BSTR;, g! Y+ H" M3 D8 R0 c
requestVariant[0].bstrVal = itemStr;
, X" K; Y! a6 ]0 J _
) |( L. q! F% C, ~ topicStr = SysAllocString((WCHAR *) L"system");
% {" v8 S- `0 e; b3 H- D6 n VariantInit(&requestVariant[1]); 8 T8 {* V( B" x2 c5 n- |$ G F2 P
requestVariant[1].vt = VT_BSTR;5 A) T; X0 M$ R' F2 g x
requestVariant[1].bstrVal = topicStr;
' [& Q% P+ F# N* }& n* X& T2 y4 E( q; w* ^4 B! t
// Set the DISPPARAMS structure that holds the variant.
! a" o# F3 q8 \/ o) |$ A' B5 N1 O+ c6 v+ ~. M
dp2.rgvarg = requestVariant;
Z- }6 {+ @. g1 r dp2.cArgs = 2;4 Z5 N- Y& ^8 r. X- i9 I& M
dp2.rgdispidNamedArgs = NULL;
0 C/ V, ^$ d) P9 i+ i% _+ f dp2.cNamedArgs = 0;
4 m% n5 M% v# O& R; l% P
" e' U) g# _+ I6 L. k* X var.vt = VT_EMPTY;
" H3 x- \6 K* G2 x" |
. I: h) ^7 `6 Z* f$ l// Call IDispatch::Invoke()
& s. |3 l7 z7 i* x+ D3 _
( f% A' x% F" J% z$ ] hr = m_pDisp->Invoke(! n V) x) s3 r
requestID,# N3 D4 ?3 J4 Z) W
IID_NULL,
: w4 D0 P2 n9 ~4 @ LOCALE_SYSTEM_DEFAULT,
5 _& b& ^. U O: v DISPATCH_METHOD,9 c2 l4 ^3 _1 A+ |
&dp2,
9 J) A+ I& w' a; U: g, k. z &var,: [7 i# h7 M$ O
&ei,. y- ^! E9 U" f) a
&uiErr);
) d, e1 d, n' f- \% b6 b6 y2 g" k( @; E @7 }% J( l
SysFreeString(topicStr);8 V; Q) Q: a1 }$ }0 X
SysFreeString(itemStr);! i* e, a9 g% v+ U: j5 Q2 P- j% t
请问该程序是获得extend里面的哪个值？3 i5 e6 I S/ W# m
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
