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:; u0 r& r& C$ X: J' y8 t
Name = (WCHAR *) L"Poke"; : R& Q; `8 l* x7 x * Q$ v$ A0 w& ?- ?
hr = m_pDisp->GetIDsOfNames ( 2 }. Y$ ?' _) Q' j$ o+ q IID_NULL, // reserved" A" D7 q- _( w- B' j. d% c
&Name, // Array of names to get IDs for 2 H+ a Z6 }) p 1, // # of names in the array / n! D! j0 f4 P' A) s4 v LOCALE_SYSTEM_DEFAULT, // System locale1 V6 Z& W+ E9 @: g, x, s; i; G+ V
&pokeID); // Array of IDs to fill on output3 }# e" t& C, h; ?, w
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if (hr)2 W6 E& U2 j" E: N0 s* @6 \
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MessageBox ("Get Poke Unsuccessful");6 o7 W5 L( L' ^, X! D3 E
return; 4 s8 N+ @7 A* c5 ~, ^! a }* H, P. N! {0 N7 R, Q* t# |
: m% U- s' b. m; i" W/**************************传递数据给extend**************************************/" \" Y: m: Z2 m( k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); . q, p0 W) ?. `* U * t+ S/ |7 q$ U2 W: Z; _& ^ valueStr = SysAllocString((WCHAR *) L"1232"); , L. P1 R0 u: |9 `2 { VariantInit(&pokeVariant[0]); ; t& D3 N+ M, f& d) z pokeVariant[0].vt = VT_BSTR;: F! K# c. f- }% U2 e! e7 ^: G
pokeVariant[0].bstrVal = valueStr; . w5 f# G" w* ?& B* k3 g$ E e - Q+ v; t. h- M1 ` itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");, H& y3 k) R1 j- i) S5 f" m
VariantInit(&pokeVariant[1]); 4 f: W4 [) e6 }. _4 u pokeVariant[1].vt = VT_BSTR; 1 y) ~- u( c9 r/ R9 U pokeVariant[1].bstrVal = itemStr;& E/ O5 P+ u5 O2 x2 x6 m* e
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topicStr = SysAllocString((WCHAR *) L"system");* u! `: W- j6 c0 d
VariantInit(&pokeVariant[2]); 4 ^4 l( o( ?2 s) t pokeVariant[2].vt = VT_BSTR; 0 J* r, Y: @/ ~ pokeVariant[2].bstrVal = topicStr;8 n7 ]9 ]: Y9 g1 M! Q' R
: \5 \+ H& k) S3 B! } B Q// Set the DISPPARAMS structure that holds the variant.- Z7 b: P$ I H3 G
, x4 h$ a1 K; p | dp.rgvarg = pokeVariant;. Z9 p% v h; _5 f4 _) h
dp.cArgs = 3; 1 n8 C4 y4 ]# d/ j/ L& O5 ?$ Z w5 p dp.rgdispidNamedArgs = NULL; 4 s! r+ M( t( k4 W- {! [ dp.cNamedArgs = 0; 6 \3 @7 F9 E- n2 u6 E* r( B4 S8 I# A
// Call IDispatch::Invoke()* K+ j" ~) r( w: I' H
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hr = m_pDisp->Invoke( " z! J" X( w4 v5 f# d" Q pokeID, 0 j/ l9 y; I5 p8 y' L2 R* T2 y& T IID_NULL,+ B! M& t# H h' n' x1 J% z8 O
LOCALE_SYSTEM_DEFAULT,7 p9 C2 p1 x$ ?: f* o
DISPATCH_METHOD,4 z% ?4 j) X/ R* K6 M$ G' N& c3 k) a
&dp, 7 ^; l9 `5 ~! h NULL,5 l7 Y, z: {0 Z: c
&ei, 1 [+ \, ]0 m3 _) s1 n: G8 r &uiErr); 6 k: x: q' A; l- Y8 | % k8 j( T3 @$ n, ^ SysFreeString(topicStr); 9 q- V2 g' u! Z) J SysFreeString(itemStr); ! n R4 m/ b$ O" Z SysFreeString(valueStr); ( X5 b* v/ }7 z0 I& b; ^9 y7 u5 ~6 y9 |0 W+ b7 j2 h; 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??? , S( Y P. T, d8 I& s9 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????/ h7 ?2 T* f- \/ M y
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- ^( c1 d3 \( D( `* B2 R7 |2.这是request的程序* W6 _. q1 Z# l% v. H
// Request a value from Extend* u: s" M) C- @. }! w
//' A6 f: ^' K- L" [
// Initialize the variant that will hold the BSTR. Set the variant's 0 e# l' p: E5 ~: e3 d// type flag to indicate the fact that this variant holds a BSTR. Place the& _, T9 n9 S! a4 S
// BSTR into the variant structure.* Q8 C8 D: t/ w6 c5 J% u
6 _' \3 ^2 N4 V& Y3 B requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);( k3 `9 Y/ t, e# t8 _1 c* I
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");: H! U" x& Z( [4 r/ q& b* A
VariantInit(&requestVariant[0]); ! T( p& e! s; n
requestVariant[0].vt = VT_BSTR;; X- l. M4 s8 Y- z7 ~
requestVariant[0].bstrVal = itemStr;' u: [" T& t3 X& O- t
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topicStr = SysAllocString((WCHAR *) L"system"); * z4 S# j- \% N9 z& h VariantInit(&requestVariant[1]); 8 Y/ `+ [3 S" H& I. w
requestVariant[1].vt = VT_BSTR;- B: D6 S! y' E& g7 m2 |
requestVariant[1].bstrVal = topicStr;1 {5 p7 I$ Z9 \- R V0 L
+ e1 a5 |9 i9 H! C// Set the DISPPARAMS structure that holds the variant.& d/ a7 [6 D. L% q9 R# h