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: 9 ^( R- l% r) f/ o; c dName = (WCHAR *) L"Poke";" R. a9 b" g/ K$ |
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hr = m_pDisp->GetIDsOfNames ( L& L* j: ^! s" T% R IID_NULL, // reserved0 T4 s1 K) x* T. z7 _
&Name, // Array of names to get IDs for! C( l% V0 C" { D8 I
1, // # of names in the array 8 |8 w# m8 _4 s. `+ c6 ^9 Z LOCALE_SYSTEM_DEFAULT, // System locale2 K* T1 T) n1 q: I# F
&pokeID); // Array of IDs to fill on output ( C' P. M; j$ ~, d- @, F1 p ; O! m* V9 ]7 t4 _& d4 R( a$ Z if (hr) ! m4 T: P/ d) L Y2 B% F7 d { : e4 W: y. j3 O' s" O! X MessageBox ("Get Poke Unsuccessful"); : c4 M5 _+ e) {8 y9 t2 O X! u* c return;! H% E- |$ b/ x/ }0 q
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7 b. ?6 w3 ?1 I: b/**************************传递数据给extend**************************************/ ( F9 ^% {5 b) W& J F% T pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);4 C) l \7 E# j/ | [, l) p
* r( E7 `+ N) v0 b, X4 E, Z2 Z. { valueStr = SysAllocString((WCHAR *) L"1232"); # W( e1 n3 f$ `" [5 C1 e VariantInit(&pokeVariant[0]); i2 u# i- z9 y, ]$ w
pokeVariant[0].vt = VT_BSTR; 7 {, F. e2 |4 N( V$ l* Z pokeVariant[0].bstrVal = valueStr;+ e. C& H# m5 |$ M% z
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itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); 7 L6 k7 ?- }! z9 O/ G; Z- U5 _ VariantInit(&pokeVariant[1]); 0 B* g1 v' |* U n
pokeVariant[1].vt = VT_BSTR;# Q/ \# H2 M: r8 U/ @; T0 X2 |6 L
pokeVariant[1].bstrVal = itemStr; 0 Z( D f9 Y( q1 D( j - D u' G4 f* N" m2 Z- u topicStr = SysAllocString((WCHAR *) L"system"); : L& W2 P) U/ E; ~$ y) e( z VariantInit(&pokeVariant[2]); 1 ]/ x( O! I; ]/ n k& W U: i3 X; Q pokeVariant[2].vt = VT_BSTR;1 q) b: X- |9 h' a: }' O0 Z
pokeVariant[2].bstrVal = topicStr;$ S# a& `2 L% `8 h1 Z' @! r% T1 y
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// Set the DISPPARAMS structure that holds the variant. 7 @# h4 _# g$ G4 X3 ~& u; C% ?; I+ c0 T- w
dp.rgvarg = pokeVariant; 7 m8 b2 o' f6 |+ k! Q0 ] dp.cArgs = 3;, h% Y" \8 P& b5 ]% X0 ?
dp.rgdispidNamedArgs = NULL;& x. N1 K, e. L) S% [/ B' v
dp.cNamedArgs = 0;' N7 l5 E& \# w. z
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// Call IDispatch::Invoke() 7 H: K* _9 [8 v, x! p* P4 C7 ?
hr = m_pDisp->Invoke(8 g- k$ J8 U7 O( {) t3 X% v$ i9 x
pokeID,& u, p) W$ U( R
IID_NULL, 0 y+ ~+ l+ g3 {* J( S f# L9 ] LOCALE_SYSTEM_DEFAULT,4 i# V* C& X+ D! r0 I! E
DISPATCH_METHOD,! ~" m) l: r8 F. n$ ]. {# F$ Y
&dp,# Q) m; L) d% C6 P' B( C
NULL,( F, f+ s" O- i n% X# i0 N
&ei,$ n7 Y8 j0 e; J o1 F
&uiErr);( o0 x$ o4 b9 P
- [3 _: Y7 c' }* G! h: o- E SysFreeString(topicStr); 9 ~% c5 p& I" [& Q+ y5 O8 f SysFreeString(itemStr); , e4 D( {- K- {7 F4 r# @ SysFreeString(valueStr); ) \4 [2 x/ _0 z2 S2 { ) }6 S" b/ G W$ Q+ u4 Z7 w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??? Q' I+ G3 a. j3 D, @
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???? 5 ~( L) d% z/ w g; J/ ?. y7 e6 Z8 w+ F0 M; G- L1 O
9 T$ N; `$ G* c" }" U( H5 C2.这是request的程序4 x: t3 \/ L5 T2 c# U8 o
// Request a value from Extend0 @0 G# X% `" h& K2 N% C* u B
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// Initialize the variant that will hold the BSTR. Set the variant's) L' X& B9 r( ~5 h4 T9 [) E% e
// type flag to indicate the fact that this variant holds a BSTR. Place the 5 n, d8 d9 W& p8 h# q// BSTR into the variant structure.5 r# X8 C1 h+ [5 F
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requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); H2 i' _- ~) z5 m i/ M4 S: U
5 O U/ E8 N# H* Y6 v/ y2 l itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" B d/ {8 V s" T
VariantInit(&requestVariant[0]); 1 u$ b4 O( X, @& N/ D
requestVariant[0].vt = VT_BSTR; 6 o0 \! O# t5 {. l& Z requestVariant[0].bstrVal = itemStr; O" l6 g' E- U: B