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：, i+ B8 V* L- Z) j* h
Name = (WCHAR *) L"Poke"; 9 Q5 D$ u( ^' r- e. l! x3 w 7 I4 W7 c K# E$ L- F' a/ H hr = m_pDisp->GetIDsOfNames (8 R/ [" T8 m5 ]0 m
IID_NULL, // reserved ; Y, t$ g+ p) y( k) q3 Z &Name, // Array of names to get IDs for 1 L$ b' c5 r' q- M 1, // # of names in the array# n8 _ F9 L1 |0 }) T
LOCALE_SYSTEM_DEFAULT, // System locale 5 D% s8 V; y9 s& S( C1 j &pokeID); // Array of IDs to fill on output ! t( T0 G: I! W + H7 @2 ^9 R$ Y4 U+ U if (hr) : Q4 S' w+ _$ Z4 h) B$ R/ L6 M; V {9 ?3 s5 G* E2 F8 O3 W
MessageBox ("Get Poke Unsuccessful"); 1 r% I9 P; f6 R) ?0 F$ @) A- ~4 \ return; 4 b" e. h9 S8 g3 ^ }- A1 h0 I- p/ W$ H6 v
8 J- v* z& `7 v+ @6 ~8 d9 R/**************************传递数据给extend**************************************/ K4 [" T9 J: l- S- }
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); i& r, l/ g6 C1 ` 5 i% |# s& d* \& p. U7 Z valueStr = SysAllocString((WCHAR *) L"1232");7 p c6 D$ ~! `
VariantInit(&pokeVariant[0]); 4 c! d( }! ~- B! O pokeVariant[0].vt = VT_BSTR; 8 _# i' X* r& U pokeVariant[0].bstrVal = valueStr; . C- Y/ e" ~& ~2 U6 E& T P- @1 p1 T3 Z; P! Y! x3 Q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 6 [7 @4 H& M8 H$ f8 B m7 z VariantInit(&pokeVariant[1]); ! F$ K* F) f" p8 a% \* q
pokeVariant[1].vt = VT_BSTR;4 Y/ m" r% [, B4 b. g. Y b k
pokeVariant[1].bstrVal = itemStr;+ ?. k+ \/ B6 G' [8 H- h% m
2 ?+ i+ _1 [6 w topicStr = SysAllocString((WCHAR *) L"system"); 5 P0 K$ H! w% g( W3 K1 t& v2 E VariantInit(&pokeVariant[2]); 9 ~! M2 E; c4 S pokeVariant[2].vt = VT_BSTR; % w; c# V0 i/ \. c( ^) V pokeVariant[2].bstrVal = topicStr;( b% \; T1 J+ w9 ?* U+ V
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// Set the DISPPARAMS structure that holds the variant.+ W5 s$ {& b) k
. T+ e6 H# ^( u3 f& g0 O! J dp.rgvarg = pokeVariant;$ l. b+ ~4 u5 e
dp.cArgs = 3; 3 l: \8 Z t: b dp.rgdispidNamedArgs = NULL;# k' g2 k% X; g5 C1 T$ J
dp.cNamedArgs = 0; ?2 i; K# f$ {# V6 o5 [1 k; u & d+ {7 k3 i+ Y3 K2 b// Call IDispatch::Invoke() 1 T! \8 F& n2 f/ j& q: v5 E2 }# l, m/ n! c% J6 N L
hr = m_pDisp->Invoke(8 l' ]- F; J- ]5 `4 `
pokeID, , B# H, o" {. m. k3 c IID_NULL,3 E# b( a. @+ C# \* J8 W+ h
LOCALE_SYSTEM_DEFAULT, . y! d' O# S: t1 H# ` DISPATCH_METHOD, , D* S g e! A &dp, # W$ S5 a% l: N% C' B NULL, ) J4 f5 i: D& H& A &ei, : {: n$ z B$ Z" y+ |- J) n1 | &uiErr);) a% Y, F. v: }
+ ~4 J8 k3 d4 F; i2 q% \( v; } SysFreeString(topicStr); % B: S3 R$ H' U8 m0 L SysFreeString(itemStr);1 h6 n8 Z. Z+ r$ X: a& S( ~
SysFreeString(valueStr); # c2 A1 T# ]3 Y" `( M$ X k! O; \- K9 x; ]
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？？？4 C3 m# [4 \0 I4 n, i! ^1 T. \$ T5 W
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？？？？ `, l7 j9 m; @* B4 _3 e6 Y6 \; X ) e1 D( @; M) I) N5 C4 n0 R1 l7 s V% K( a6 m7 a
2.这是request的程序 $ O# F8 I5 H* _# d4 x* E) q4 \// Request a value from Extend + \6 t9 X( p! }2 C; b- z// & p. I. @+ `* [, w( Y. w; g// Initialize the variant that will hold the BSTR. Set the variant's 1 E H8 f: K/ T# q5 Q& [6 i// type flag to indicate the fact that this variant holds a BSTR. Place the " ?: k" {, ^) f( F* u# ]5 W// BSTR into the variant structure.3 Q7 v! p- g) C! K$ }: r$ U5 i. N
7 P, X5 \1 w/ P, l) i0 a requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); & N% p" u! U* g* w- p 7 c4 K5 C+ U! Z$ K
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");6 a/ @- i1 i: I2 Y0 N
VariantInit(&requestVariant[0]); X% i- D7 x4 q8 G, V5 h
requestVariant[0].vt = VT_BSTR;4 Z" S9 ^9 L) Q8 m7 N0 p" e
requestVariant[0].bstrVal = itemStr;! ~' a# i r7 r( D2 t# e
8 R- ~' D0 t- |7 V) f1 ]0 Z x topicStr = SysAllocString((WCHAR *) L"system"); 3 c3 \. u" [) f( O VariantInit(&requestVariant[1]); 4 K5 {$ _8 m3 a, h
requestVariant[1].vt = VT_BSTR;1 T* D( b4 Z; N, U) Q
requestVariant[1].bstrVal = topicStr; % R8 ]3 v8 u5 A; [1 x- q& h! O! K* @% w, b n& M# V
// Set the DISPPARAMS structure that holds the variant. 7 R# N3 I# q1 l/ f' } . {# G4 z: }) ?9 s3 d& c. V, E8 k( \ dp2.rgvarg = requestVariant;, o4 d) i7 ?2 ?" \6 \$ a
dp2.cArgs = 2;2 P% A I. _; n
dp2.rgdispidNamedArgs = NULL;- A+ S1 ?' l- c( B1 z2 c/ R2 g
dp2.cNamedArgs = 0; i7 Q. u% N/ k' }4 L" ?. }
2 D5 w+ n. B- z: y6 i" Y var.vt = VT_EMPTY;( H6 d* Q3 a% z7 d, Q& P; }2 g, c" j
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// Call IDispatch::Invoke()) \9 A0 J% X* J4 `' q5 [( S) w1 G
- i+ I6 u6 s' w! x% g4 k( s hr = m_pDisp->Invoke(* p1 z* R8 ?6 s# |0 _
requestID, K9 o0 I4 r& P0 E$ F
IID_NULL, Y0 X9 A+ v% p+ i& e, l+ G LOCALE_SYSTEM_DEFAULT,) h$ B8 b, r. X8 _; I
DISPATCH_METHOD,& n% W6 S2 V6 \: y
&dp2, / S# [+ o# u ?6 B: n &var,7 ~ h; U1 s- e$ G! D
&ei,- `& T8 ^! D* ?( K) E4 u" M
&uiErr); % _4 J! t. [/ `' c p6 }' J 3 \, r% m9 d u( i8 I: H SysFreeString(topicStr);+ `9 H6 k4 E0 }" |% D. D. N
SysFreeString(itemStr);) b6 F) w |; M' _1 y( y
请问该程序是获得extend里面的哪个值？5 m; e; ]; ?) z, h6 |% O; u" u7 _* q
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？？？？
发表于 2008-11-25 19:37:03
