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:
* H9 g' y v* u Name = (WCHAR *) L"Poke";5 c; p; q% e2 I( E* I. N) u
$ U6 B7 Y- H7 m! J* T/ v hr = m_pDisp->GetIDsOfNames (
4 P% n) V( [0 d/ {+ |8 v IID_NULL, // reserved; N7 T" k2 F% V
&Name, // Array of names to get IDs for8 H) P' j1 r& P/ J2 j9 v
1, // # of names in the array8 f0 ?& C& q6 E8 X4 s; I- g
LOCALE_SYSTEM_DEFAULT, // System locale9 t! \! R) A& X6 p. N/ }
&pokeID); // Array of IDs to fill on output
8 s! T' @- @) i. ?+ _) f
( L* a8 S d8 A$ |" A ?8 \$ ] if (hr)( K6 f* A* X5 Y: M' H0 C
{ v. i# p- a: r/ D
MessageBox ("Get Poke Unsuccessful");
9 s3 z X- q0 a% e7 W1 i return;
! f3 a# v& c& L: Q- r }6 H: g# I+ X6 [) T
' ]7 k2 m& @. Y5 k$ v
/**************************传递数据给extend**************************************/* b/ W; _/ p8 v3 j) }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
0 C, ~. o9 c" `' ~+ Y
' U3 m, H. R$ H& J. J0 o. S2 j% ] M valueStr = SysAllocString((WCHAR *) L"1232");" g& R' Q" P2 }
VariantInit(&pokeVariant[0]);
8 g8 m8 O* k4 f6 l" @, ] pokeVariant[0].vt = VT_BSTR;0 ]/ H5 m9 T0 d
pokeVariant[0].bstrVal = valueStr;
, }! y4 a* E" ]4 l v, @% U
8 H2 m8 z2 d+ R; i1 U7 U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
1 @7 N( k0 n7 T% B8 c VariantInit(&pokeVariant[1]);
$ }: N% Y- O% m' W, G pokeVariant[1].vt = VT_BSTR;4 o+ a$ \; G# v, L1 i. ~& M; J
pokeVariant[1].bstrVal = itemStr;" A7 Y" @. Y' J6 ^4 d
8 u [! g8 H0 S" H/ S: o topicStr = SysAllocString((WCHAR *) L"system");7 K K& G1 R: B; J. ^
VariantInit(&pokeVariant[2]);
2 [" F; E& {( {/ P# a' F pokeVariant[2].vt = VT_BSTR;# U) T3 |/ ]4 z) y/ V3 `, ^
pokeVariant[2].bstrVal = topicStr;2 y$ z# Q) w$ Y% F5 ~0 l3 |
9 {9 X1 z8 U4 r0 a // Set the DISPPARAMS structure that holds the variant.6 N& @% U0 t+ {1 u5 R4 l# Q
; b, k3 `3 f9 w+ t, {" x2 c
dp.rgvarg = pokeVariant;- S) B/ K5 Y# t& [+ h# x
dp.cArgs = 3;- X4 b, J9 d( M4 A! O
dp.rgdispidNamedArgs = NULL;
1 j5 H6 a& w( k- \* [ dp.cNamedArgs = 0;: L [7 W0 l' p# G7 s( G6 y5 K
2 n# K. Z" D4 Z' V; R7 z // Call IDispatch::Invoke()# H9 B: a; D& V y
3 o3 N8 {( B7 d$ Z0 w9 Z
hr = m_pDisp->Invoke(
8 O( h9 k- x+ m pokeID,9 V7 m, R1 ?" E
IID_NULL,
1 g7 h- ^. {1 E- [ LOCALE_SYSTEM_DEFAULT,
2 G6 M! v. ]2 Q0 b' r4 b7 k1 y0 N DISPATCH_METHOD,, ]* `6 b) _9 n, J9 d
&dp,. A- t7 P7 e" u" b1 C& K$ n* E
NULL,) U4 A9 v* b) L! P1 }
&ei,$ |: B2 i |3 w+ ?
&uiErr);
: L6 d+ g/ S: D# F
) q" `+ Q. B# F. e; F+ M D SysFreeString(topicStr);
8 \. E' D p+ B9 M2 S; m SysFreeString(itemStr);
K, ^1 U/ J0 \. y4 s. W SysFreeString(valueStr);, u& S4 ]4 f8 |6 D0 v# f' I
7 _3 x2 d" C! ?9 x- ]& o" F 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???
' Z- [& @* I& F$ O9 Q! Q 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????( G$ j3 J" i9 \1 L
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% Y" F2 O0 \7 @4 `! e7 V5 K2 F 2.这是request的程序5 c: @+ R* }$ a7 [6 c! q$ Q
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's
: R% }+ F8 Q0 A% O) D // type flag to indicate the fact that this variant holds a BSTR. Place the
; U; J; E4 I+ E) c$ X( h // BSTR into the variant structure.
/ ]4 {& n8 e, t) _' K6 M
$ c# w# @( S& J% a7 R# \ requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);0 V9 A, ~% m% n: b4 o
" z( n- U5 q' Y1 u8 Y2 b2 q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
+ C% h( v1 [6 Z- A# ]7 j VariantInit(&requestVariant[0]);
- `4 I7 \* \4 e* S1 f" W requestVariant[0].vt = VT_BSTR;& I+ o; \+ T% d+ Q+ O% O/ H
requestVariant[0].bstrVal = itemStr;, g- r% R, k; ? w& C3 z
7 v0 C' [3 f h7 ~7 m topicStr = SysAllocString((WCHAR *) L"system");* r ~2 S4 T7 X* @
VariantInit(&requestVariant[1]); : p6 C* W! R/ S* Q I
requestVariant[1].vt = VT_BSTR;8 F: s+ i( }" c" i
requestVariant[1].bstrVal = topicStr;
& D1 b: k2 h4 U1 n% C; f
! T( g1 W. }% |# j // Set the DISPPARAMS structure that holds the variant.- f A# ^8 {: }- b/ y
% ~6 b$ e/ S* t3 H( d% k# Y8 E dp2.rgvarg = requestVariant;
* I/ v5 n, ^+ p! d; ~8 G dp2.cArgs = 2;# l6 Y3 T$ h0 e/ X6 f# ?/ A
dp2.rgdispidNamedArgs = NULL;
- ~& }+ H5 U9 h. ?* n( q/ n dp2.cNamedArgs = 0;9 V% u5 T- U; U3 w* x
% x2 t; A8 d+ h" V$ N& ^ var.vt = VT_EMPTY;
`8 G ~% M% j4 b0 m7 H4 I
3 p' j+ z; ?% K4 ?3 |# y! W // Call IDispatch::Invoke()4 r# b) W: h, T# I7 Z: ]
8 P4 k! c+ k) G" | hr = m_pDisp->Invoke(* @: a/ N, M& p! c
requestID,
' C( o4 t3 |/ `; G0 Y IID_NULL,
: f% K- A5 l% k) s" w LOCALE_SYSTEM_DEFAULT,
- G! o! D" z9 ?/ ~1 @ DISPATCH_METHOD,
) N$ A- A; z$ P3 S8 A; o &dp2,
# ^. ~2 d* a# [/ f" u! [ &var,3 O/ K. A( y( j# F X- U
&ei,& ~6 J9 o8 l% H
&uiErr);: R4 C$ n. Q9 ^# v7 M% H
7 S+ a% v) `' l1 X9 y% n SysFreeString(topicStr);
! Z4 Q1 a/ a' Q7 a SysFreeString(itemStr);
: l. {# x) s+ c& M2 T 请问该程序是获得extend里面的哪个值?0 ]1 e* Q) s* {& l+ {* S
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