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:
x, H# Z% T; N Name = (WCHAR *) L"Poke";* }0 @" T" d. R
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hr = m_pDisp->GetIDsOfNames (
, {& Z! ~0 g& I6 m v0 C IID_NULL, // reserved
7 o% b6 j7 z2 M" h6 ^ &Name, // Array of names to get IDs for p' l3 H* c1 a3 ^, D: z
1, // # of names in the array& A9 d C$ }. e* p
LOCALE_SYSTEM_DEFAULT, // System locale
/ i |+ X# F2 E* x5 ?5 d &pokeID); // Array of IDs to fill on output
% [. x2 [ g5 t2 W
; E/ b' Y6 t2 A if (hr)- D' ^2 B6 X- |5 T Z* t
{
/ X; K; }2 ?) y4 P3 w5 n; Z4 U! D( H+ v MessageBox ("Get Poke Unsuccessful");
" P& i6 P8 A: F return;* H9 g8 Y6 A! r' m* w
}
+ m# B. ]: o% g 2 V+ T; R- B& K% }; W) i2 o
/**************************传递数据给extend**************************************/
! b) F$ ?, h! u! U) e. q pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);- ^9 C4 L! \1 N5 h, ?9 u. v5 A
. {+ F$ C4 I$ o# X: X9 ^2 o/ N
valueStr = SysAllocString((WCHAR *) L"1232");1 D( L5 }$ Q/ D1 r
VariantInit(&pokeVariant[0]);
5 m, Y- z/ S; A8 V! k pokeVariant[0].vt = VT_BSTR;4 c- j; M/ c% A; L& n8 O8 q, t
pokeVariant[0].bstrVal = valueStr; z. l, z" m' I: q
: l6 U) A- [* N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");9 Z( q+ z3 ^7 ^7 Y2 Z
VariantInit(&pokeVariant[1]); " _( C% P/ w$ P4 x
pokeVariant[1].vt = VT_BSTR;
; Q5 ^; |# m' R i: J" T pokeVariant[1].bstrVal = itemStr; q9 z) Y* G1 Y) \% k
6 T! t$ m& K% X topicStr = SysAllocString((WCHAR *) L"system");2 ~$ l }7 ~$ Q& L4 ]
VariantInit(&pokeVariant[2]);
" B) {% M q& x ` pokeVariant[2].vt = VT_BSTR;( |3 K# g! _6 a* j% [7 u
pokeVariant[2].bstrVal = topicStr;
" K6 q$ D, N& h* h4 u
o3 |) b+ t/ `! n T& h0 d // Set the DISPPARAMS structure that holds the variant.* Y0 y1 Q1 w% p
2 p0 M- e6 E. D2 S dp.rgvarg = pokeVariant;# t+ t/ p9 d: J( N( t) d
dp.cArgs = 3;
, H" b6 C! T- Q u dp.rgdispidNamedArgs = NULL;8 N) V9 q% W2 ]2 m3 i
dp.cNamedArgs = 0;& y6 [' [- e2 g9 _
p0 M" H; m! [+ h) I8 \
// Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(
' {6 _7 I' |( D! {9 J pokeID,$ G. |8 e9 _' Y, P" p8 N3 `
IID_NULL,
1 B" N9 w c/ m! u4 D LOCALE_SYSTEM_DEFAULT,
: \+ y9 k% r& W# @& Q5 u DISPATCH_METHOD,
3 g+ }& D+ _# J" X- X: @5 T: M &dp,) q" M# a! w4 ~1 n1 w* _# r+ C: F
NULL,
. F& D( y: v+ c) T9 m& N- g' P &ei,9 |! U* o( H) ]5 i
&uiErr);: o# Y3 h; ^) h, O9 \
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SysFreeString(topicStr);6 ^& p7 V( q% g, l% l8 M
SysFreeString(itemStr);
$ d; U( K9 J& k/ G7 W! d SysFreeString(valueStr);) U7 t5 J4 [( k4 V% o
8 v E% B! i; T 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???
. k1 v. h/ T6 e) o0 [5 M 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????
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4 q7 J8 L# h& | 2.这是request的程序! P+ v M9 _8 e* Z. ~9 w
// Request a value from Extend
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// Initialize the variant that will hold the BSTR. Set the variant's" l; v( |& Z5 m1 y
// type flag to indicate the fact that this variant holds a BSTR. Place the
0 e# m) n3 L( p // BSTR into the variant structure.
9 K! w+ G6 \) j" S" d
1 S+ P! E" H' q requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);$ |' ~( h; Y7 }4 h1 C" {
- Q) C% c0 G* @8 M0 z) c6 ~6 ^ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
( @ r6 |. V: b+ @ T- N VariantInit(&requestVariant[0]); 7 A8 q) J0 G) J* ]) S2 C
requestVariant[0].vt = VT_BSTR;
2 b! K2 g4 w$ r6 f& k0 H requestVariant[0].bstrVal = itemStr;) V3 n2 @7 q8 ~& s3 g' O1 a
3 V3 f+ ]$ |3 w* m; J( `1 l topicStr = SysAllocString((WCHAR *) L"system");
7 b% O/ _% N+ ^. k) E; N) m VariantInit(&requestVariant[1]); $ X' P7 J2 \/ L* h! W& F& n+ V
requestVariant[1].vt = VT_BSTR;
# y. G& V# v. A8 L requestVariant[1].bstrVal = topicStr;* ^; [% T: s7 V: @- w
. v7 h3 c$ H3 c$ L1 O
// Set the DISPPARAMS structure that holds the variant.. H3 T/ i8 o6 D- r7 F
! H9 I) O# D7 U- N9 i, f# H: [
dp2.rgvarg = requestVariant;* n9 j L9 ]+ T# ]% u; u! G8 B
dp2.cArgs = 2;
& f+ H. D# T' ~8 @4 @" g! _ dp2.rgdispidNamedArgs = NULL;
8 w( x/ Z3 w9 S3 Z- v! ? dp2.cNamedArgs = 0;
$ [( p- K7 A$ D' J/ `( J) p
1 G( v) a1 Q' @) Y& b0 [3 u: z var.vt = VT_EMPTY;
' [" K9 r" Q* K- k' G& A5 H, }
3 t6 P( p# s% o) ^ // Call IDispatch::Invoke()
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hr = m_pDisp->Invoke(. x% P+ A# s8 W
requestID,
) E0 c9 U, \/ f0 z9 u* W3 N+ B& i4 X IID_NULL,! e; o+ s3 k5 _! S
LOCALE_SYSTEM_DEFAULT,
5 M) P" o! F. @; M- @$ s( }5 n8 ? DISPATCH_METHOD,
" C4 M" m: @" o' c4 w0 S3 R &dp2,
+ }. f! Q3 m2 [. u &var,* _, \* a3 q9 @6 F5 ~3 w
&ei,; `! u" g6 T% {4 n' g# U! C
&uiErr);
/ E, m0 H9 W/ Z) w% G3 q
- S3 u7 c- I5 z) Q SysFreeString(topicStr);9 T- [0 c- Z1 M4 p7 C- F5 L
SysFreeString(itemStr);0 {) A) N- B. M' u' T
请问该程序是获得extend里面的哪个值?! @( h- l& O/ n, e7 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????
我来回答