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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：
/ a3 ? D2 m+ {, u( k* I/ XName = (WCHAR *) L"Poke";
8 s5 x9 J+ M" T! F' t$ r1 I& t2 G 9 H/ i1 ?1 H8 {6 |4 ^
hr = m_pDisp->GetIDsOfNames (9 A, @, X1 c/ S8 D) d" D2 P+ Q
IID_NULL, // reserved! i L& [. y# Y2 a6 A6 K
&Name, // Array of names to get IDs for: B3 Y; ?$ B: C; T1 r# x
1, // # of names in the array/ S& y( V2 F. e% o, [2 V6 r
LOCALE_SYSTEM_DEFAULT, // System locale7 n% t. _7 I" g7 w) s) U/ l3 O
&pokeID); // Array of IDs to fill on output
9 Q& I# J7 N! [/ b
6 A- `# @5 V9 h6 U. b if (hr)
. X# b4 S' z2 n/ p, S5 J {. y N/ x7 h$ G& ?
MessageBox ("Get Poke Unsuccessful");
, C- n7 a+ D. K. S' Y/ ^ return;
7 }* z8 d: s3 e' b+ |6 M }" [" @, c7 v8 Y- Q' ]" y5 y( X, n
" X) a. V; P0 a/**************************传递数据给extend**************************************/5 ]( i, `0 {! L, f7 I; ~1 P3 }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);
* ^" `' E$ O/ C1 s5 n4 a2 s* i: ]
8 z) D. H* p; x- u valueStr = SysAllocString((WCHAR *) L"1232");5 t, u2 ^) w" ~% ~# V
VariantInit(&pokeVariant[0]);
0 K" P1 r! E, G2 U: [ pokeVariant[0].vt = VT_BSTR;
2 x' l6 N) v( P' O+ K/ c1 d pokeVariant[0].bstrVal = valueStr;7 I4 {% |+ D% N* d2 A, H/ e9 l* Y
4 L! s& |5 M# k1 U. q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
; ^9 p( {" @( S1 l, w" D$ } VariantInit(&pokeVariant[1]); 2 }! y% ?* V+ J+ @! y; T3 E
pokeVariant[1].vt = VT_BSTR;
( K! e( `1 T$ m f- t pokeVariant[1].bstrVal = itemStr;6 o- i2 P# s. p9 {
- B7 p- R) |3 H) { topicStr = SysAllocString((WCHAR *) L"system");% }4 I. R6 N- ?
VariantInit(&pokeVariant[2]); 8 ]$ u; T5 u" D) v& A
pokeVariant[2].vt = VT_BSTR;! u7 i5 @2 V2 ~; B# Y
pokeVariant[2].bstrVal = topicStr;( C- g7 _1 P" H6 D) ]5 q. }
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// Set the DISPPARAMS structure that holds the variant.
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dp.rgvarg = pokeVariant;
: |. Y( V% u5 C$ I2 D& q dp.cArgs = 3;
% F! i6 n5 q; s8 z( o dp.rgdispidNamedArgs = NULL;8 h+ |" h$ e. L) F
dp.cNamedArgs = 0;7 @9 m2 w1 g% h' G: U3 {' O
! V+ P; u* o6 I- J; Y9 m- H// Call IDispatch::Invoke()( a* a" c+ _1 @2 {0 l( R8 }* m
7 I3 c6 p) B7 t. v. H hr = m_pDisp->Invoke(
6 D: q3 v" c, O, t% q5 t7 o+ H6 Z9 L pokeID,
& v, D& l7 [3 x; }8 x IID_NULL,5 m8 b9 m4 T1 n( Y; y: T% ~; u
LOCALE_SYSTEM_DEFAULT,
7 {. G+ i+ a5 D2 r( H3 e DISPATCH_METHOD,
0 T0 r: c; Z& l; ?+ b: O. T+ N &dp,
/ ~. @7 B' g) t. M! ^: @+ f NULL,6 f v" W9 I0 m
&ei,
0 g5 C# G8 a* _% W9 [ &uiErr);
: _& d" Y* v3 F1 v
( ^$ H% p5 @# L9 J& O8 G SysFreeString(topicStr);- Z4 g& G- @# a" ?
SysFreeString(itemStr);5 _: h% i. z' @8 ^7 g5 E o& h
SysFreeString(valueStr);
6 H! N1 ^/ B% @8 C! `1 L9 {
* ?! Y. f7 O; \3 q7 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？？？( z* o$ p. x' e6 d
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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* u$ ~0 D7 }3 @ O/ H7 u2.这是request的程序 F; M8 z D. ?$ ]9 A9 c
// Request a value from Extend
" h7 p( B/ B9 U: ~+ ]0 |% q//
6 ~$ A- K( {( }! ] c, y' i6 L9 n// Initialize the variant that will hold the BSTR. Set the variant's
- Y/ ^ j2 q1 ], |% F# V// type flag to indicate the fact that this variant holds a BSTR. Place the$ g! P4 j4 `0 a- A
// BSTR into the variant structure.2 e4 @& K. M2 u5 Z
* [; v5 x% I, G
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);
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/ i8 Q, w# D) x" `# g; d" i; G itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");
9 Q0 C+ z6 I; e6 C- l VariantInit(&requestVariant[0]); 5 A8 w% I& }2 A) j, x
requestVariant[0].vt = VT_BSTR;8 \$ |& e! T, @7 ?7 r: y) I
requestVariant[0].bstrVal = itemStr;
: L6 q0 j8 J; N* i8 K
) e2 o9 f/ ], O4 R) m% c& z* x5 Z topicStr = SysAllocString((WCHAR *) L"system");' I( X8 ` n/ d( U4 G1 ~
VariantInit(&requestVariant[1]);
; ~8 {. T5 z4 V7 ~' U1 k# k requestVariant[1].vt = VT_BSTR;( o2 E, s" p& G' N$ k9 o3 O) N0 i
requestVariant[1].bstrVal = topicStr;
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5 j5 b9 ?1 U3 F8 E B// Set the DISPPARAMS structure that holds the variant.
& x" T6 D2 o& p1 k# V
" \# A' O6 |' `' c. U! p dp2.rgvarg = requestVariant;% l! [, E5 ~8 X* ^+ O( a
dp2.cArgs = 2;
0 ^+ W! q- U+ k% r5 ?2 t, `' ] dp2.rgdispidNamedArgs = NULL;# u- k- b8 E# M/ I$ [% W# O
dp2.cNamedArgs = 0;
3 S& M6 T G1 E: {- |4 ?4 G3 W, L! ^% b5 B% g r$ y. ~7 g* E i) i
var.vt = VT_EMPTY;( L6 V; a0 U# c0 |- w: ~5 @
3 E7 Y, e& i& P// Call IDispatch::Invoke()1 H* _, S; [5 p: l. o
% G- h4 K. X0 K9 K! F. r hr = m_pDisp->Invoke(
& v# B/ l8 L$ {. {" E3 W5 x$ } requestID,
) r+ _# `0 M8 ]# K IID_NULL,. _& p' O: E6 k; q. X
LOCALE_SYSTEM_DEFAULT,
# m) D9 j2 a; y" u b& O DISPATCH_METHOD,. a4 @) k% V4 e' O; E1 Y: L* d
&dp2,
0 `9 z- y2 y8 ` &var,
! Y; y* }1 v, h0 I6 t &ei,8 Y+ G$ k, g- D" D! }5 o
&uiErr);8 U B0 N' p" M+ _
9 |# `8 ~8 O1 R1 w4 s1 x
SysFreeString(topicStr);
% {/ P$ f- M7 @: t6 E SysFreeString(itemStr);
" G% j# I6 T$ @请问该程序是获得extend里面的哪个值？
/ E d ?( \4 R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
