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:. z5 B, j" M% m: t& ]( a
Name = (WCHAR *) L"Poke"; ^% N4 a: C. P+ o# Y P1 r
" ?4 f6 L! X, E# k. O hr = m_pDisp->GetIDsOfNames ( " l+ f+ X } C6 O3 B0 l0 ^ IID_NULL, // reserved 6 j8 @, s# ]3 d8 ?% u5 T Z" o8 S &Name, // Array of names to get IDs for : R1 e7 ^1 m1 t+ K+ i; S& u) i 1, // # of names in the array6 L$ v0 t2 f1 F4 f/ h; E& v1 z( X- K" X
LOCALE_SYSTEM_DEFAULT, // System locale6 @- i8 x! J: A; {# H) u- ]
&pokeID); // Array of IDs to fill on output+ L' I, C( G0 z5 ], g: p! V4 F0 h
8 B) R1 l4 G( u8 } if (hr) / [/ z& \* u/ D/ w! n) W9 g { ' _6 V! ^ b' p MessageBox ("Get Poke Unsuccessful"); ' v0 S) U9 M, d return; ( m3 t/ }9 o' r2 z7 V, @ }5 F0 }, L/ x: d& Q. F* }
; A2 Y5 }! `6 ^8 P2 F0 t7 T valueStr = SysAllocString((WCHAR *) L"1232"); b5 k) J. i& U
VariantInit(&pokeVariant[0]); 3 f2 T3 k/ C8 `
pokeVariant[0].vt = VT_BSTR; \* g: b. o9 ]( q% j% S; S
pokeVariant[0].bstrVal = valueStr;/ g, l4 o, A" ?- S3 |5 m
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");( Q% @4 n3 [% `, d' s% N9 Z; }
VariantInit(&pokeVariant[1]); + _- }0 q; |) _' [% t5 `8 s pokeVariant[1].vt = VT_BSTR;. h$ K J( e. ^" o: e& q
pokeVariant[1].bstrVal = itemStr; `( g# ]3 g# c" o/ Q# P ) J' k- A& s. \ topicStr = SysAllocString((WCHAR *) L"system");. `3 `' M! j+ N6 Q
VariantInit(&pokeVariant[2]); $ U5 u, b, f) \& M* j
pokeVariant[2].vt = VT_BSTR; % Y8 D/ G; j( f pokeVariant[2].bstrVal = topicStr;( J; _! P" ]. Z' t6 K7 t6 L8 i
0 u, P; b" H5 w0 q// Set the DISPPARAMS structure that holds the variant., n. h" Y* a; r7 b1 D: V: M. B: O( U9 l
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dp.rgvarg = pokeVariant; 3 O! i { f1 }$ o) j+ I8 Y* A dp.cArgs = 3; 9 d8 V; b3 e$ W6 c: ^& @ dp.rgdispidNamedArgs = NULL;4 a- q8 _& A. m5 m
dp.cNamedArgs = 0;1 v. J7 Z7 x! r2 I6 S
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// Call IDispatch::Invoke(). \$ P. Y* g8 v5 _/ `- i, ~5 V
4 O! `1 ^$ X8 A- P3 W8 W3 g hr = m_pDisp->Invoke(1 }6 K x/ {$ g8 N) e
pokeID,: G2 g* T) k! j2 q1 A! U& |
IID_NULL, 6 Z4 C3 s% i+ K! F7 n LOCALE_SYSTEM_DEFAULT,! O' o! b' e# v+ ~
DISPATCH_METHOD," n8 t& C& k! t, q8 x
&dp, 4 G7 Y9 e: K- u1 n! W* h& {3 Q- z NULL,/ }5 R" z' }$ \. s0 u+ F5 D/ Q
&ei,6 ? _6 r* n# B, J/ J3 W
&uiErr);, d' M# f+ m7 f1 |- c( G
6 }" C' U% N* [6 q }2 P! J SysFreeString(topicStr); 5 [' m$ H% x5 t SysFreeString(itemStr);3 Y. \, N2 f0 z6 O- ^' J
SysFreeString(valueStr);& Y8 D* ^9 v# { Y/ I/ o
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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???7 b4 x$ Q6 J: X0 K6 I7 p
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???? + q+ f# C5 _7 ~, e) o( q& H" x6 | + c' L) e/ a) J3 F/ X+ Y1 i; T% |$ o6 l6 R4 s
2.这是request的程序 + H% l' N0 \+ f) m) r- A+ c// Request a value from Extend 0 h& ~* K. b8 w9 U( K& P% \" ~' @//' Q- Z) k, i: T( S
// Initialize the variant that will hold the BSTR. Set the variant's ) \ X& g( q$ x1 F) B: g// type flag to indicate the fact that this variant holds a BSTR. Place the ! O$ c8 C) o8 x8 U// BSTR into the variant structure.; K b1 w7 G/ @( e
0 K& e- g) ?4 S/ E1 l( { j requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 3 q1 K u. U- B e9 h + i& a7 j& d1 { | itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& n- H& o' r' O! K! m+ K% Y
VariantInit(&requestVariant[0]); 8 a5 v! F F$ O8 {5 }
requestVariant[0].vt = VT_BSTR;; L3 F$ U2 k# u' j; X
requestVariant[0].bstrVal = itemStr;9 }9 s- F M4 B# Q Q
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topicStr = SysAllocString((WCHAR *) L"system"); ! `- V& Q3 E6 d9 Q6 { VariantInit(&requestVariant[1]); + i6 m* o7 L! c/ [0 Y2 X: Z( Z* H' j
requestVariant[1].vt = VT_BSTR;& J% P3 B7 }3 O3 q' c) J: h u$ i
requestVariant[1].bstrVal = topicStr; * m3 `! m! Z- I: U. a$ }6 d2 C( | }* n1 y: |
// Set the DISPPARAMS structure that holds the variant." h& l2 M5 ~9 F/ M
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dp2.rgvarg = requestVariant; 2 T+ ~( L" l/ O: `& I dp2.cArgs = 2; g- `0 L& l! C. h
dp2.rgdispidNamedArgs = NULL;2 L2 ~7 E; f/ n/ \- y- B* S
dp2.cNamedArgs = 0;( P4 ^! I. C" r; Y" {5 Y: s