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:
/ Y. P( }, b3 e8 y Name = (WCHAR *) L"Poke";
- \* k( u2 `" H4 w2 \9 t6 \ " E \9 ^; T! T3 Y e
hr = m_pDisp->GetIDsOfNames (6 _: ^. m, M" q7 C- E
IID_NULL, // reserved
$ B5 h0 ^8 N! l3 V) M/ B &Name, // Array of names to get IDs for
* g# c6 u+ Q8 {: A+ d 1, // # of names in the array
! f4 D2 I1 H4 [1 p/ Z. \ LOCALE_SYSTEM_DEFAULT, // System locale
% i. n2 C$ R, U6 G3 T &pokeID); // Array of IDs to fill on output2 l; o7 m' _+ }: O2 R' z7 }9 m/ k
# V5 u: q" X1 l' X if (hr)
" E9 w: R% K$ @: H {, m1 F+ I) @; m* [# P
MessageBox ("Get Poke Unsuccessful");3 T8 M& E% j- }. `
return;
, x1 g% ^* A7 \# d$ Q }9 A, A5 V) \9 i( w6 e
@6 S& ?; h3 @- c5 g /**************************传递数据给extend**************************************/
7 x7 @, O* F1 J" b1 Z7 d& j" d pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& I" b- z+ X. K/ O" l* f+ w/ t
0 z0 D! D9 R2 D- l7 e/ u
valueStr = SysAllocString((WCHAR *) L"1232");
: ?! `& j# r7 D VariantInit(&pokeVariant[0]);
8 s% |# [0 X, g' s9 ^ pokeVariant[0].vt = VT_BSTR;
5 q# l/ ?6 z' D9 c8 ? pokeVariant[0].bstrVal = valueStr;; J3 H/ P2 ~; m% r$ A+ p
' `& A# u% T$ L. @$ c% y* g itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' M0 f; @$ |" I0 k' {8 G
VariantInit(&pokeVariant[1]);
" l3 F6 Z$ l7 e9 I0 _& v5 p pokeVariant[1].vt = VT_BSTR;
; N1 ~1 Z2 r/ W' |& a pokeVariant[1].bstrVal = itemStr;
' L4 C1 q% s g. }4 r& f$ J
! ~' Z1 k! B6 H. ] topicStr = SysAllocString((WCHAR *) L"system");
7 P/ u. T8 j+ y5 v VariantInit(&pokeVariant[2]); " c9 V* m) _" C6 u. G2 g0 k$ J
pokeVariant[2].vt = VT_BSTR;
I/ G7 n) R9 T. z' x+ c6 { pokeVariant[2].bstrVal = topicStr;2 Y$ p+ i9 B8 Y x! w+ B
1 {. X* L. L( T7 W
// Set the DISPPARAMS structure that holds the variant.
3 K% q5 {) `* X# d% W
2 ^( p9 p" _6 P$ @+ @: N dp.rgvarg = pokeVariant;6 P+ |$ z% U8 V0 F2 V7 {
dp.cArgs = 3;
. m# c( v, E% C# ^1 g dp.rgdispidNamedArgs = NULL;! o+ _. w3 T6 l# V+ x3 r) B; i
dp.cNamedArgs = 0;
* O$ z8 p0 T% N8 u) M 9 _; `# g4 x6 z, X+ W; l0 p
// Call IDispatch::Invoke()
: `1 C0 h* Y/ F$ x! Y* e8 |2 D
7 r- e4 y) C3 D* I0 _ hr = m_pDisp->Invoke(
1 _+ R9 I$ l' l pokeID,
# ^& ^8 y6 a9 [4 _8 ]) G IID_NULL,
5 a6 H& M1 o: Q$ G( e3 K LOCALE_SYSTEM_DEFAULT,
9 R, M* E& k3 L G DISPATCH_METHOD,0 z9 u7 _2 ]) g; I- Y3 w
&dp,
% O" o1 ]! R- S2 b NULL,: Q5 ~1 `/ d8 ]2 o7 @- X& j; u
&ei,9 p' l2 B4 s r1 v& a
&uiErr);7 x% n! t3 {/ f. p5 q
0 \; g1 I* v F: ]% b& D SysFreeString(topicStr);
% j8 J! ^% N) ^. b SysFreeString(itemStr);
% c) A% M5 `8 _& S SysFreeString(valueStr);
& i# y% c) N# [: S/ u& v d - i7 k3 h; u. X* h; M& o
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 u. h$ l& e: k* i) l2 v- l, w
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????1 `9 u2 ^2 p7 Y0 `+ |- {
+ b3 O W2 G) |5 E7 L
. ~4 T- s# }6 I: \* j9 K+ [ 2.这是request的程序7 b. s! ?" I6 `
// Request a value from Extend
8 `& y& {( y, i; F4 N0 T //
! L5 P# V5 ]8 S4 H- D7 v) B // Initialize the variant that will hold the BSTR. Set the variant's
" K5 `( j% K- {1 a // type flag to indicate the fact that this variant holds a BSTR. Place the& w5 j" ~* ]7 y+ z- I2 U
// BSTR into the variant structure.
4 u3 u- p& X$ J& X# T) `$ m/ l 8 n8 b9 R4 W7 z8 Q( @1 A
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);- `3 y7 w* |; X6 v2 _
* ^ t6 W3 L7 F4 J: _ h# R y. G
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");. T+ @( W8 N- R9 b
VariantInit(&requestVariant[0]); : U/ Z" p; a( H
requestVariant[0].vt = VT_BSTR;8 T& k9 j+ g. _; K
requestVariant[0].bstrVal = itemStr;% j, K3 }1 S4 r) ^2 C
" }+ J2 z, V7 i: Q8 A$ o topicStr = SysAllocString((WCHAR *) L"system");( E: c/ X* d+ U/ ]- P
VariantInit(&requestVariant[1]); / c, J1 m1 Y. e
requestVariant[1].vt = VT_BSTR;! L5 J) ?: a5 h. w0 p
requestVariant[1].bstrVal = topicStr;# l: H' m3 m$ f; J1 Y5 M
5 X+ `8 q# F ^- {) h8 o
// Set the DISPPARAMS structure that holds the variant.
}, ^! P' o7 c! F( Z % `' r/ ]' `* z, ~
dp2.rgvarg = requestVariant;4 `, Z& t% r& r4 V" ]6 \' Y
dp2.cArgs = 2;2 T) K! F) ]2 K" k, J
dp2.rgdispidNamedArgs = NULL;2 s/ d# x# C* s6 @
dp2.cNamedArgs = 0;7 I. N6 q+ F5 u$ O
% K+ u* f$ s& { {- s
var.vt = VT_EMPTY;# e* J; T7 e. |* @: `
2 q6 U% B4 y: z
// Call IDispatch::Invoke()
+ Q: _2 k7 x0 v + u8 }" F- N' j& f2 n/ P8 t
hr = m_pDisp->Invoke(
+ ]! q1 ]! _, C# J requestID,6 N9 ~/ }% V' v
IID_NULL,
% W6 b$ Z! a6 |2 c: P; j" A7 X8 l9 o LOCALE_SYSTEM_DEFAULT,
/ ~/ ?4 M4 u# w; R/ k8 Y DISPATCH_METHOD,( c9 R2 B m9 l- H1 M
&dp2,
5 K' h' S7 u0 O9 u# M &var,
4 f, e/ n, Y% J! u& N# N &ei,
1 h3 j6 T9 C2 e& [# J+ I x/ ^ &uiErr);
0 y4 o1 M* A5 ^- |9 g* A) b 6 e9 d- O. m4 x5 I' X% x5 B
SysFreeString(topicStr);
% Y# O/ t% P: h! s" {. [9 ? SysFreeString(itemStr);
4 B" p- O% v* D @2 S5 X7 } 请问该程序是获得extend里面的哪个值?
0 m( B+ H4 P* X7 ~& {1 O 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