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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：
2 x& D6 D6 m4 ^( S" oName = (WCHAR *) L"Poke";
: [( {6 `- ^: {6 o) _ 4 e8 A; b0 r$ w! Y ?+ H9 A* x) ?
hr = m_pDisp->GetIDsOfNames (, B: n2 w# ], S2 H
IID_NULL, // reserved [ g3 ]! s8 x$ o+ ?
&Name, // Array of names to get IDs for
. p, T: d: Y' Z4 _* s, F) d 1, // # of names in the array
* d4 l# i [- Q5 H# ` LOCALE_SYSTEM_DEFAULT, // System locale5 `5 a* W7 w m8 }. r) K
&pokeID); // Array of IDs to fill on output4 I' e$ N7 H" ^ |4 s- b
) x9 q* ^$ E9 M5 i# A% D7 R if (hr)
l# ~& t$ ]3 ]' w0 F {
% ]1 t& T. p7 i! r- H5 X8 ` MessageBox ("Get Poke Unsuccessful");
6 ?* K: r" \% g* K return;. X; |7 {2 A4 h* n
}
r( B7 C* _3 }9 U0 `0 m
: k0 r" [. \% s8 d0 _/**************************传递数据给extend**************************************/- H/ R; z% m7 w, n1 e" u
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);" v, I" i$ w! R- ~3 k R
4 ^: g/ q4 R: K* g5 B valueStr = SysAllocString((WCHAR *) L"1232");! h0 u0 m" N# p
VariantInit(&pokeVariant[0]);
( V9 m5 X: @ ?3 [: Q) q pokeVariant[0].vt = VT_BSTR;
" E4 ?& s7 z- l5 X" K pokeVariant[0].bstrVal = valueStr;; F6 D6 }3 O. ~5 K
. j5 F7 o6 b7 j' _4 G, S. B4 @( r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; W$ Q" f5 G+ V VariantInit(&pokeVariant[1]);
" {6 v2 H" ] X4 q0 X* ~ pokeVariant[1].vt = VT_BSTR;* F, u d/ G: f2 h
pokeVariant[1].bstrVal = itemStr;
2 s, s5 X& T) B
( x! T. J* u; `" ^7 r; c$ w! m topicStr = SysAllocString((WCHAR *) L"system");8 c2 J" M8 v# g5 p( e2 |* H- d" \
VariantInit(&pokeVariant[2]);
4 Q; J* ]. j* t- L1 t1 h pokeVariant[2].vt = VT_BSTR;
* B+ J& ^. i4 R/ y, I" [2 ~ pokeVariant[2].bstrVal = topicStr;$ ?6 I5 R( ?$ a. s2 z1 e8 Z$ E
$ S- z, i; b! b4 a% r% N
// Set the DISPPARAMS structure that holds the variant.
/ ~' X4 V' M+ k9 z0 L
' Z9 h9 Q5 _% W2 Z$ \ dp.rgvarg = pokeVariant;
5 j# O+ m n* f' ?/ W dp.cArgs = 3;
/ w& g! D( {& O6 K. d/ Y* h& s dp.rgdispidNamedArgs = NULL;
: H# x0 x b( `: W dp.cNamedArgs = 0;
$ ]; L8 T) p- R8 G% k Q. ]/ y9 c+ f9 d+ F; S% }0 R
// Call IDispatch::Invoke()2 C; T. o/ C! z5 I% J4 k
3 h8 _6 s" U' `6 ^2 O1 K
hr = m_pDisp->Invoke(% s% V& T' _3 [( w& i
pokeID,9 e" Q. g$ [5 ]3 ^8 }' z
IID_NULL,7 A* w9 Q2 g# T
LOCALE_SYSTEM_DEFAULT,
; W; M; w6 `% I# S. U DISPATCH_METHOD,4 _; Y1 U/ F+ }3 [( ?5 l) t8 V
&dp,8 r8 i1 p+ } ?6 l2 F7 b
NULL,# X' q2 X+ y: j% L W
&ei,+ m" f" X, _" F& Z2 G
&uiErr);
! |% ?$ {9 C! i- t$ w1 D1 _! H) y8 @, J; X% E6 K8 N2 t
SysFreeString(topicStr);6 E' f' ?+ d& b) q
SysFreeString(itemStr);# R6 U# n# e$ i5 L) s/ b+ G7 M1 v: c
SysFreeString(valueStr);% f) h$ @# o, m1 T+ l
1 E: W; c' ~ y1 v' s1 T& b
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？？？% f3 {. e7 `! i' k2 `3 _0 `/ |
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？？？？
( i2 ~3 F7 f5 E; E) m0 N0 c- h1 `, ~; G2 w9 q
; I' A8 C) I" N, U$ k3 M H2 `
2.这是request的程序7 e: v* e4 R9 l+ i; Y2 l: J* s; p+ w
// Request a value from Extend$ d4 z- E; S, Y7 }0 I
//
% t3 r: l1 r" P" F// Initialize the variant that will hold the BSTR. Set the variant's; \; d. h4 m4 \" E+ A4 ?
// type flag to indicate the fact that this variant holds a BSTR. Place the
+ g2 V0 d. ]$ m" Y+ @/ ] S// BSTR into the variant structure.6 P6 r1 p1 g! @, ^# ?" N+ n
) N5 D l1 s) B; }5 p requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);4 r+ y3 w R* y
+ b' [! C" r: x' `, r itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( u. [# m( {/ L+ t
VariantInit(&requestVariant[0]);
" z* H! |& L8 ^+ G# [1 j2 M requestVariant[0].vt = VT_BSTR;
. P7 x; \$ Q# M% a- P6 \" }: h requestVariant[0].bstrVal = itemStr;8 L( I$ P+ f [3 u" U
. Y Z- B( H; P0 V$ e; H topicStr = SysAllocString((WCHAR *) L"system"); k4 y5 c5 k6 Y8 \
VariantInit(&requestVariant[1]); 6 Y1 @1 h: k1 d: b/ q9 |7 |
requestVariant[1].vt = VT_BSTR;. v. b' H- z6 A* W8 U+ G. R
requestVariant[1].bstrVal = topicStr;5 N4 u) ]8 B) m6 h8 Y" Q
2 z3 g' f! d) n// Set the DISPPARAMS structure that holds the variant.& S: ^" ^/ e2 w" C% D4 a7 `* b
* y# m9 |. |" F4 n* ~( j: e; S4 K$ x dp2.rgvarg = requestVariant;
: k' ?% N/ G& X7 G2 P9 n dp2.cArgs = 2;& z* g# M6 f) Y, k7 Q- x
dp2.rgdispidNamedArgs = NULL;
. F# B' t6 \0 Q1 X; c dp2.cNamedArgs = 0;1 h$ F+ ~: r& k! |4 [! {/ i( i% W# z2 ^
3 a. V% D. c, o; e9 H var.vt = VT_EMPTY;
( G1 a& o9 ` O# F
+ V1 _# z+ f$ L3 n// Call IDispatch::Invoke()
7 ]; J2 r `# X$ z5 ?" `* W U2 R* {0 U0 o; f+ j1 t$ \
hr = m_pDisp->Invoke(6 j; ^2 M+ G3 ^. B6 V& \, G
requestID,
" a- c8 A# N' S& q' G IID_NULL,
7 M! ]2 o) L; v3 F4 }* | LOCALE_SYSTEM_DEFAULT,, [; V8 ^0 M1 [, P2 U3 {& t
DISPATCH_METHOD,
+ W; X) e0 i. O, Y" R1 _ &dp2,: d( G+ A% {, i( S' {
&var, K$ h* E b% }$ ]! H) ] \! |
&ei,4 o) j7 v0 k$ @: \3 ], u' x
&uiErr);
1 o! P7 M' z# k' q! ^0 A* u9 t$ O% ]. Z9 U P
SysFreeString(topicStr);$ [. ?& j" {' k
SysFreeString(itemStr);
' V+ h* T! C! D. U请问该程序是获得extend里面的哪个值？) |( D; N z% a6 J: d) P. H& 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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发表于 2008-11-25 19:37:03
