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: ( j9 j+ { q; O) @- AName = (WCHAR *) L"Poke";; i3 \; ?+ ^9 J8 Y3 Z D9 @( F- Y
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hr = m_pDisp->GetIDsOfNames ( ' V9 p5 E& d" c' d IID_NULL, // reserved 8 Q, M% N X! l$ F( j# ` &Name, // Array of names to get IDs for+ R8 E( ^1 Q% Z) Y+ a
1, // # of names in the array 9 ] s$ j5 m6 {0 e( D LOCALE_SYSTEM_DEFAULT, // System locale7 i! M2 b L2 h4 I
&pokeID); // Array of IDs to fill on output3 Z4 C; b: k; r8 ] V
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if (hr) , B1 z4 o) G6 k$ I$ p- ?7 d {! T" N, n' [% I& \; y/ V2 |
MessageBox ("Get Poke Unsuccessful");* r- i& {+ B+ x: @1 S
return; - Q5 ^9 K; z8 z } V4 M+ E2 y: q; b3 }/ ]
( W* y0 b7 b) `1 b% G( S3 ?/**************************传递数据给extend**************************************/* ]! m. S2 Z8 Y
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); 2 l1 B. w" N4 b! O" D6 U* l1 j - K: l+ }% K1 \
valueStr = SysAllocString((WCHAR *) L"1232");& b: b+ M9 w4 J
VariantInit(&pokeVariant[0]); ) X0 m1 H9 P9 K3 c pokeVariant[0].vt = VT_BSTR; 6 a# B) s' R; r: b) B- q, r' ^ pokeVariant[0].bstrVal = valueStr; - F( R2 o! s6 Z1 E; a9 O! `; S$ ]% j0 r' V" n0 c3 X
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 G; I5 B2 t1 v+ \
VariantInit(&pokeVariant[1]); , A4 P/ g/ ]9 V9 f4 d pokeVariant[1].vt = VT_BSTR;, x& m% k9 e, j& D: m( y- o
pokeVariant[1].bstrVal = itemStr;4 {# J Q+ s0 g# U; ~
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topicStr = SysAllocString((WCHAR *) L"system"); 6 k$ x! r7 G8 @/ O VariantInit(&pokeVariant[2]); 1 |& ^1 j( e) [' t2 z6 y& I
pokeVariant[2].vt = VT_BSTR; 8 }7 f$ \; {+ P& C+ @! [ pokeVariant[2].bstrVal = topicStr; 4 B: o+ U9 T" P8 N5 f$ b, F$ j; x% }' c0 [: D. {+ f
// Set the DISPPARAMS structure that holds the variant.9 Y) f) F$ I/ G7 @
7 L8 [6 ]8 N( ~ dp.rgvarg = pokeVariant; ; a5 x$ C) q+ T1 k! W dp.cArgs = 3;- G# ]: V8 A9 E% {% a6 x( G
dp.rgdispidNamedArgs = NULL;0 D) L& B& \, r
dp.cNamedArgs = 0; ) }/ s, `' z0 c9 D! M# g+ u8 K4 f8 {- g 0 z) w6 }# W! W( h4 O' D8 [// Call IDispatch::Invoke() 3 v( u, A. y4 z$ u$ e2 w# M5 G7 }. J7 r: \# [1 I# p
hr = m_pDisp->Invoke(& ~2 g/ N5 `/ B* L0 E# M0 R
pokeID, 4 i& {, p. ]2 ]& n IID_NULL, 9 d7 y# ?) }8 ]: @+ r+ G LOCALE_SYSTEM_DEFAULT,3 m- X! }/ a2 H6 E1 f5 Q; U6 l
DISPATCH_METHOD,& v7 E: |9 L. z$ @
&dp,# V2 S0 A. L5 Q/ l) ]- ]
NULL, 5 @3 O; q6 E( t &ei, 5 ?4 u- t( }$ ~- Y! U; t; `+ u &uiErr);; M: `/ ~! ]4 M g5 k2 v! Y
$ n$ D# { E6 O( C- \ SysFreeString(topicStr);6 `( s, t8 G1 M0 o
SysFreeString(itemStr);3 z) K1 `9 G' v
SysFreeString(valueStr);! q9 w( c) Q; } w. i
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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??? 9 `- B3 B8 @, v: B' S: A( J) r* v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???? % g4 P- ~( G6 Z! r1 D. g* z# Q" E5 y* n ]# [: {: H Z0 H1 S
1 d! j x' K2 v2.这是request的程序% G5 H9 {; A- m6 P) Z
// Request a value from Extend . @0 y( K0 p& D b+ i. @! ^//3 w8 h8 I8 a* G+ p- @/ J7 v
// Initialize the variant that will hold the BSTR. Set the variant's/ C; A5 A3 Z2 c% L8 d) @9 x
// type flag to indicate the fact that this variant holds a BSTR. Place the ! b* @+ J0 p( Z8 j3 _: D% W! |// BSTR into the variant structure.. @. F5 b- f8 l7 Z6 E