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 x$ I$ j; N% m7 k7 F Name = (WCHAR *) L"Poke";
5 H' {6 c* h+ W( h& E" N/ F
, k8 q2 T/ n; b: A+ o$ Z hr = m_pDisp->GetIDsOfNames (, b" i8 w4 b' ?$ u- j! W
IID_NULL, // reserved
. L) o7 X, { s: n2 V &Name, // Array of names to get IDs for- { Z" h# x( L
1, // # of names in the array$ ~- a2 c0 E" ~ X
LOCALE_SYSTEM_DEFAULT, // System locale0 r5 R" c0 F" z4 U% z- r- F7 a
&pokeID); // Array of IDs to fill on output
5 r- D1 |+ z: }; d
' O7 K6 ~ W2 o+ f) ^4 ] if (hr)' j9 m! y6 }. |& D; e1 R
{
& X+ P9 z5 v( z0 T MessageBox ("Get Poke Unsuccessful");& a# B( |' |6 o+ y
return;) n$ J2 y) |+ Z4 \: Q- b
}8 A& P' R4 a2 f- w
/ C+ m6 [0 u: e$ W8 d6 |/ G- c1 s /**************************传递数据给extend**************************************/
9 t* U; ?1 D/ P4 T8 H2 d h- x, I% ~( m pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
G3 A! H. d0 K9 }/ Y( Z: ?0 d
8 g; W- F1 ?) ^4 b1 M+ I$ j8 z valueStr = SysAllocString((WCHAR *) L"1232");5 c q$ d: M% C2 p0 {
VariantInit(&pokeVariant[0]);
) q8 k% \% X3 Z9 U" C/ J pokeVariant[0].vt = VT_BSTR;' N r9 t/ t% N# b
pokeVariant[0].bstrVal = valueStr;$ L. ^5 p. Z$ b2 s! R% x
& ]7 M- O& Y) R5 j& o' w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");7 `* D8 U$ g6 m9 e4 Y
VariantInit(&pokeVariant[1]); 3 H* V) s. h0 S$ t f8 j6 \
pokeVariant[1].vt = VT_BSTR;- P& r' {8 {( P- O8 S2 ~4 W" j
pokeVariant[1].bstrVal = itemStr;
$ ?. c$ k4 v. f
* f Y! M! r9 F) k! W' ]4 n e topicStr = SysAllocString((WCHAR *) L"system");3 E2 Y6 b7 e2 o7 n
VariantInit(&pokeVariant[2]);
" \( J9 P% T( Q1 @/ I& P0 u pokeVariant[2].vt = VT_BSTR;
) ~9 ~' ?' |/ r/ o: j- g+ I pokeVariant[2].bstrVal = topicStr;3 @' N9 n& q+ J! s% w
2 b5 R" q" s' Q5 _ B: Y // Set the DISPPARAMS structure that holds the variant.9 E; |- e/ M% ~" N/ b
9 R; H. w) g, w/ Z% B6 \! T$ c9 J. Q dp.rgvarg = pokeVariant;
. a5 D# P$ _# K" D8 P: n9 x& z dp.cArgs = 3;
# G1 O/ w9 }# _* W3 X3 I- s dp.rgdispidNamedArgs = NULL;! W& {, p' f/ a% p
dp.cNamedArgs = 0;
* j: r- m4 V6 s$ U
. F2 Q7 z4 s) [: z/ l // Call IDispatch::Invoke()
# y7 q( d; e* R( d4 j
) s2 b7 g4 x; _8 t+ ]0 o hr = m_pDisp->Invoke(! v2 Q' r8 H# r/ v, D: K; e3 t/ ~
pokeID,
" V; b7 C. j" C s& e7 w; i3 ?' F" d IID_NULL,
" A6 B: ]/ L1 J LOCALE_SYSTEM_DEFAULT,
$ U; z0 g7 U) W5 } DISPATCH_METHOD,
/ i& E2 u( s, v' Y8 i/ e3 v &dp,
/ n# O- s8 g3 r" x% I NULL,
9 F% D4 \$ t6 V% q, i" @ &ei, }: ?4 L3 D+ z4 m
&uiErr);
5 d( t x! W2 H0 e1 Y& B % [8 M9 i/ P- [8 D; b' Z+ m
SysFreeString(topicStr);
?- G7 q2 Q. v' q& f, R SysFreeString(itemStr);5 u6 ^9 j: d$ m6 H3 X- z
SysFreeString(valueStr);
; Q, g! H! ~3 }+ I q2 E$ F1 r; Y / v/ W) m# G: d* Q3 {2 ]; _
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???
- q" c- J: ^' G6 i: c( o( L 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????+ j& }% p& @- _3 ^! @
/ d4 w. N' P* z+ s0 H) M& A% J, B, h 7 J; V1 r# J; J, x
2.这是request的程序
- z$ {, N# \# X8 z) i9 B // Request a value from Extend
* y H2 ]9 N/ C- k6 M6 t- m) s G //' L1 a( g4 L, O, X( i
// Initialize the variant that will hold the BSTR. Set the variant's
: J# ?7 ^* ?8 D% ` // type flag to indicate the fact that this variant holds a BSTR. Place the
& s' F, A5 \5 t" I. s // BSTR into the variant structure.
0 k" N' f# k. R; g$ h5 X0 i
+ K! [5 F8 {' B requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ B! a( F. b* O
2 f+ G% e! n3 d/ R' ?
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
8 b/ `8 ~/ o% s1 D3 v VariantInit(&requestVariant[0]); , |; R1 z4 |6 \3 {' F! _# W
requestVariant[0].vt = VT_BSTR;4 o. r+ _- l% R$ J3 ?
requestVariant[0].bstrVal = itemStr; L: ^9 u" G" J9 y2 Z! s
/ {$ ]/ R& ~0 E5 z+ P6 r$ q. v topicStr = SysAllocString((WCHAR *) L"system");# j" F# X4 k3 C* r6 o
VariantInit(&requestVariant[1]); 5 s2 o) _" M7 p" ?
requestVariant[1].vt = VT_BSTR;
0 s3 x$ t1 C- J$ k requestVariant[1].bstrVal = topicStr;3 s$ n4 {. r3 ^! P0 j
5 i, g; N, H4 u2 s# P // Set the DISPPARAMS structure that holds the variant.
4 n# C: q: F6 { , S7 `0 n" d0 v5 \3 T+ w
dp2.rgvarg = requestVariant;
/ B/ X* R. C" M! N# | j; A! V dp2.cArgs = 2;
6 e0 w! v2 T6 E7 C+ S9 H dp2.rgdispidNamedArgs = NULL;4 z& t: `$ {5 V
dp2.cNamedArgs = 0;7 u0 A5 n3 |5 k. X& M# W w
) w4 B9 F& z7 A) z) Z8 h
var.vt = VT_EMPTY;9 N" ?! \+ Q2 M8 V
; P9 a) J! o' J/ i7 v
// Call IDispatch::Invoke()
/ Q0 z4 c+ S7 M8 ~+ p, m% J 1 d4 L8 M# a) _" H: o% ^
hr = m_pDisp->Invoke(
" s6 A! g/ T/ Y& \' f- Z3 C requestID,
7 l6 S. A5 I- [8 L7 l+ [ IID_NULL,# D# I* ^0 i3 g z8 ?
LOCALE_SYSTEM_DEFAULT,* S# q$ s! ]) p* r
DISPATCH_METHOD,
' Y2 b$ x4 [- h' ]8 g+ S &dp2,9 n& M, z+ S- I4 {- J0 g
&var,
+ J7 f7 C( s2 T& r6 i! g: z &ei,
: X1 V6 O4 v# h3 H2 L &uiErr);
. q. Q! F" p7 z' `& `
! X5 I% M& Q; v5 s H* ~: H SysFreeString(topicStr);
[5 u2 [" e# h8 R f `/ O$ _/ M SysFreeString(itemStr);
! T2 v) i# G, ^ 请问该程序是获得extend里面的哪个值?
F. B! k1 ^2 F8 u% j7 Y( k 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