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: ' J' W/ s6 g. d9 Z( f5 @9 s( mName = (WCHAR *) L"Poke"; 5 T, n/ s1 c5 z, h4 w% Y 3 b3 R8 @. H' }2 n hr = m_pDisp->GetIDsOfNames (+ ~) k7 O7 n9 U( n( j9 Y
IID_NULL, // reserved+ q, G( I1 P; A* s+ b
&Name, // Array of names to get IDs for % O; d) }1 d% ?* x+ n# S/ z 1, // # of names in the array 9 L% }2 h" i( }& n% N' w) L4 N7 G& X LOCALE_SYSTEM_DEFAULT, // System locale 6 \/ C+ Q. H( w. k; D. E &pokeID); // Array of IDs to fill on output& d# |" a3 s# F7 q$ ?) m- E$ B' s
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if (hr) 4 w' l& ?% _) N* @! f( P. _5 t {6 ^( u. N( {+ f: [5 o
MessageBox ("Get Poke Unsuccessful"); * |& G0 U. f [0 }, { return;( T1 r- j( ^( O6 H& W6 ~4 W
}; @1 u7 u% }4 z
k5 N } v7 u/**************************传递数据给extend**************************************/ 2 `% Y% _. ]3 g |1 ~ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);5 u+ y) Z: Y: \7 e Z
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valueStr = SysAllocString((WCHAR *) L"1232");4 Y5 B( H7 u. \# {9 w- z
VariantInit(&pokeVariant[0]); . ?9 ]4 L9 X4 w. L
pokeVariant[0].vt = VT_BSTR; 0 Z' h& p/ k! W M2 Y" v pokeVariant[0].bstrVal = valueStr; ' J z. A# _( a4 G3 q " [* Y: Q+ R& ]2 T% U! b' b1 b itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- J; s& a7 T9 U9 K+ h$ |
VariantInit(&pokeVariant[1]); & u5 t; D) F# ^4 u pokeVariant[1].vt = VT_BSTR;9 l7 d N6 P" N: r& `% T
pokeVariant[1].bstrVal = itemStr;+ `" v( H$ j( J1 _* C
6 J! f3 B0 t/ S( |, P topicStr = SysAllocString((WCHAR *) L"system");% T% j ]6 I+ |
VariantInit(&pokeVariant[2]); % y$ V4 M% I* f pokeVariant[2].vt = VT_BSTR; 7 t$ i1 H/ y0 g' G- M pokeVariant[2].bstrVal = topicStr;/ i4 @) t3 p( l P( Y" T- v
8 D; e S; L' Y: w' F) d// Set the DISPPARAMS structure that holds the variant.4 _& _2 l1 J! U2 N9 m0 C
8 W- J2 l) k9 f4 w dp.rgvarg = pokeVariant;0 O2 W' z: ^1 J1 Z4 j
dp.cArgs = 3;: M: {0 G1 W. p5 X( ]+ J: e
dp.rgdispidNamedArgs = NULL; . B( q7 `1 ]- b0 `+ Z dp.cNamedArgs = 0;' M0 f) n8 S! E1 n9 F7 q3 m
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// Call IDispatch::Invoke()9 e/ ~' E v- B% H* m5 ?- w# W
. R. W* _- \! ]3 K! ^ hr = m_pDisp->Invoke( ; c: @3 H* n$ y pokeID, : h/ j/ t0 D C IID_NULL, 7 {" W$ r) ^8 @" V LOCALE_SYSTEM_DEFAULT,. o" b7 r) M0 Z2 A) E
DISPATCH_METHOD,: H7 M Z* |6 l
&dp, : i' k0 ?+ r& j. K NULL, ; H, y6 q( O& z4 q% b &ei, ! j4 Z' y& I" E: }, d0 \; o &uiErr); 0 T6 A" A6 \$ j! u: w# b3 y8 b* z' q7 T: ?; T$ f! i8 t
SysFreeString(topicStr); ; a" P& Q2 T+ W) H. F3 @! Q SysFreeString(itemStr);1 r0 @+ W3 C* R) d% T4 [
SysFreeString(valueStr); " ^( Q+ }) J: t6 r- R / f" n' C- e' Y2 J8 y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???% V: O9 p: z- O0 |3 {8 H6 Q' F
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 I- L( u. h* v8 x
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2.这是request的程序 ! E/ L/ L e( W0 w) K: \7 G// Request a value from Extend1 ]5 v/ F& e- N. O
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// Initialize the variant that will hold the BSTR. Set the variant's# E* X( e1 J+ e8 E) @) w
// type flag to indicate the fact that this variant holds a BSTR. Place the " o% j$ z! y* O) P# }9 ?$ G6 Q// BSTR into the variant structure. $ z y% u2 I6 j0 A/ K5 m3 P8 X+ Y' L+ l! z
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); # k! X+ m+ e/ m5 h4 w6 |+ r' v5 c W * m W9 l$ c/ K0 Y5 H; Y% D$ V3 N
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");' M z4 `# w" m9 u% f6 k1 q6 E
VariantInit(&requestVariant[0]); * N0 c* p, w9 Z requestVariant[0].vt = VT_BSTR; ]5 O# X- \2 J5 S8 L
requestVariant[0].bstrVal = itemStr;/ q, Z5 e; P) |3 X' i
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topicStr = SysAllocString((WCHAR *) L"system");6 N2 [6 R6 B* Y8 P9 i1 J( @, G( l8 U
VariantInit(&requestVariant[1]); : o W1 L5 x8 ]. R& J requestVariant[1].vt = VT_BSTR;0 B; Q1 `7 _$ \( l+ ]
requestVariant[1].bstrVal = topicStr; 7 R5 a* s1 e& s! j- ?& R3 ?& d( W8 l4 {
// Set the DISPPARAMS structure that holds the variant. 3 a$ z: u+ N1 Z4 \5 I' |. M( Z7 F; G1 ]( U" s; ^
dp2.rgvarg = requestVariant;3 Q! O$ L) |: W
dp2.cArgs = 2; ' b. L* }( s: C' I- x$ S# a' C3 g dp2.rgdispidNamedArgs = NULL;3 a6 H6 d' G, W" E+ u) O
dp2.cNamedArgs = 0;# |! R, n- r4 i