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:+ |6 F. q: J3 @2 \
Name = (WCHAR *) L"Poke";0 [/ p" o0 o" E6 Z! D
) R7 ^) N* m" ?2 `' J r hr = m_pDisp->GetIDsOfNames ( , u4 {, B+ }3 h0 E$ U4 J; Y6 g8 k4 S: ? IID_NULL, // reserved$ y a1 M7 K9 @' [
&Name, // Array of names to get IDs for4 G! S8 r8 X1 x' @4 h4 H% G
1, // # of names in the array # ?7 _9 |' {6 ^1 }( S LOCALE_SYSTEM_DEFAULT, // System locale / ?! i! ^, W$ _& l &pokeID); // Array of IDs to fill on output7 `2 L3 Z. ?3 l. n0 d
) O R( _5 \3 w y8 ~+ s* Q if (hr) 2 s) I/ @3 J3 W, X, e6 H% C {( N* f* F7 J0 }; x D( Y
MessageBox ("Get Poke Unsuccessful"); ; A% w" w0 G+ s8 R- A( R return; 4 G2 X3 r* j j+ z7 b: l$ t }( a1 _! x6 N' h+ M9 ~7 q) F& B& b. Q
8 S2 k C' j/ G+ G7 T' \/ {+ ~4 F
/**************************传递数据给extend**************************************/8 o- y. M! u% @ u! a
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); E; b; N3 h! G0 `, R# p0 w2 r! q2 O
: A# b7 V1 s) N& E6 v2 s: r
valueStr = SysAllocString((WCHAR *) L"1232");, ]) L' S; y8 T1 }5 S/ S2 U: b
VariantInit(&pokeVariant[0]); : X. h( T5 K( x7 [) p# T6 F9 R- d pokeVariant[0].vt = VT_BSTR;% ^/ {( o; O* C( U: |% J. `" ]
pokeVariant[0].bstrVal = valueStr;+ f i6 x/ n; V9 K4 N. L6 { g
+ o, t* V" r- k. x, n
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");$ t$ |7 Z* [6 ]
VariantInit(&pokeVariant[1]); . I/ g, [ v3 m& V2 R pokeVariant[1].vt = VT_BSTR;! O4 q h8 u# k7 q2 i+ p
pokeVariant[1].bstrVal = itemStr;; G0 y1 q* V! Q+ T; r# j
5 P1 d! F; L) m
topicStr = SysAllocString((WCHAR *) L"system"); 9 J: h" @* E! v# g4 A1 {7 u+ g4 c VariantInit(&pokeVariant[2]); , ~; v0 Q) G, v5 ^5 K+ `9 w pokeVariant[2].vt = VT_BSTR;8 y$ h9 x1 N" [! w; x' O
pokeVariant[2].bstrVal = topicStr; ( X5 f; o9 F: \' T5 e $ I ~ v% v$ w% }2 M// Set the DISPPARAMS structure that holds the variant. , H, s" x' {4 g7 V K8 M. f$ E5 D6 o' E/ S) a2 z dp.rgvarg = pokeVariant;% n4 a! T! [8 ?1 {; c( [, `9 F
dp.cArgs = 3;8 y5 S _/ ^& p7 Y( h- d6 V
dp.rgdispidNamedArgs = NULL;- A, S! y+ p7 u
dp.cNamedArgs = 0;1 @% U1 e3 B8 E
' r, E& I. f# z0 ^: f) ]; t0 ^+ C4 x$ A// Call IDispatch::Invoke() 5 ^6 \. U$ {! R* M& M# m- h$ n* ?* W% ]) e8 J
hr = m_pDisp->Invoke( 1 B) d* g; }- h, h pokeID, * ^) V. O- @5 p$ Q$ K. ] IID_NULL, . p: W7 ` \' S LOCALE_SYSTEM_DEFAULT,% F5 N/ p7 a0 y8 p
DISPATCH_METHOD,. j( z3 b4 H3 f0 P# q& w4 c
&dp, & q/ Q4 w7 ]& V6 G+ Z& o NULL,6 J. I7 E" V& j4 B- k" E
&ei, ! T ?2 s: w, n# x/ x" B. |. u &uiErr); 8 _, n l( k2 a. O. n/ z 5 M; E v* }1 j+ A SysFreeString(topicStr); * G. g' I' g5 U5 Q$ Y SysFreeString(itemStr); / Y2 i+ Q( t/ v( [& a SysFreeString(valueStr); q4 _6 d3 T/ U, c H3 T, P5 ^: }& l( o1 n. u9 E+ m
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 n9 E- B) t1 z; ]; j- G: c% J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????/ e7 G8 B* {* j5 t" l
0 g, T; a& d7 j0 v/ T# N. m1 o9 f4 s% {/ S4 N0 i" S8 `
2.这是request的程序 2 g/ k8 }8 c% W6 C8 Q5 Q- J$ y" q// Request a value from Extend: @3 J! l1 c' O
// : c! g& O& |3 p2 H+ {/ h// Initialize the variant that will hold the BSTR. Set the variant's0 K4 Y1 }5 e* S- n8 A9 J! X- G5 w
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 b( P! j* K) r& R/ N( }& Z" K// BSTR into the variant structure.) S$ y. w o+ U3 ]
: t) A m) P+ a& W. r
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);! [! |& b; J8 o; m+ O! C% p