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 A6 ^: a3 B9 p& z+ |+ M* b. v& SName = (WCHAR *) L"Poke";- a+ C2 L- d: u7 m, `5 z
0 a# N5 ?; A* o6 `6 z: T9 A, C6 U7 K
hr = m_pDisp->GetIDsOfNames ( ! d' k, n& R+ n; c IID_NULL, // reserved: T6 n( S" ^5 s0 s ~; l% W; D
&Name, // Array of names to get IDs for & ~- L% D4 F S/ p 1, // # of names in the array* M8 Y( t% ]- L V
LOCALE_SYSTEM_DEFAULT, // System locale9 c" a1 c$ `. e4 ]( A4 q+ H
&pokeID); // Array of IDs to fill on output' ?' T6 I, n& o$ }! f( r# V
# v& ^' z0 z+ m9 ]0 v if (hr) , `3 U+ b$ @+ i& N& s5 ]9 n {0 s8 h; Q+ b% Z& E5 ^5 O
MessageBox ("Get Poke Unsuccessful"); 1 x% s3 d" O' F8 y5 @ return; * |/ L( h3 N \0 g. Q7 k o8 V' w1 A } : I1 [0 W S8 d2 [& @) C, O6 v7 q" | a" U8 J
/**************************传递数据给extend**************************************/ ; U0 C; E8 S3 J) Z1 ^/ u pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! G2 V* z0 [8 t$ P 3 b0 G5 N8 k2 N9 S1 I+ @( }$ R+ _* N8 w valueStr = SysAllocString((WCHAR *) L"1232");! k; d& W+ {* \3 @
VariantInit(&pokeVariant[0]); 0 p. O8 v& M6 s* F* I/ [. I pokeVariant[0].vt = VT_BSTR;" I' Z$ H3 Y5 G. G8 `
pokeVariant[0].bstrVal = valueStr; 6 `5 Q# e+ W V2 A3 k + a5 }# l: l' e! ~ itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); . X+ L0 j/ i' P" P5 z1 e VariantInit(&pokeVariant[1]); ; x# k$ j6 o* E1 p pokeVariant[1].vt = VT_BSTR; ( I5 h) T( }( B- M pokeVariant[1].bstrVal = itemStr; : B! y# y/ r' b( M6 A) n; w " u P6 B# o* w8 A2 G topicStr = SysAllocString((WCHAR *) L"system"); " u, b' D( I/ V7 k+ k8 q$ U% x, I VariantInit(&pokeVariant[2]); ) P) E) \& F# |$ g6 b9 |
pokeVariant[2].vt = VT_BSTR; ; b; i0 t% m5 q5 r. l$ R2 z/ ?0 | pokeVariant[2].bstrVal = topicStr;+ h C; K1 h/ P2 `5 v" t1 I$ H7 U
# ?. Q: B- y' \0 k! X
// Set the DISPPARAMS structure that holds the variant.2 ?3 R7 u# e! U9 M
1 j/ Z( w8 T4 p4 U/ O9 g
dp.rgvarg = pokeVariant; 4 h, i, q2 x. `) S2 v ~ dp.cArgs = 3; $ t2 q( n4 N4 b+ ~ dp.rgdispidNamedArgs = NULL;- F k$ \) i/ y: @7 w/ k- e
dp.cNamedArgs = 0; $ {# C# _" J4 z5 _ Q * P' R3 \3 d7 ^, V4 a// Call IDispatch::Invoke() ( B3 Y. J7 C/ `* \$ f7 H F/ t 1 W( X) D: ?" b1 O hr = m_pDisp->Invoke(( S2 d( N3 M! n$ K4 o
pokeID,0 o' W* r* g* u! p
IID_NULL,8 X! F" J' i% d) g7 Y! v
LOCALE_SYSTEM_DEFAULT, " v4 W7 H+ d4 p DISPATCH_METHOD, j9 u, V: o5 g! j; [
&dp, 0 X$ s) z# v9 M4 `" ] NULL, 2 K% K1 I( x2 ?8 k &ei,& t! i: Q' O+ r5 P8 Z4 V a
&uiErr); 8 s) K! g8 Y8 H1 T# ?4 | 6 U; A- `" z) w& o" W! S SysFreeString(topicStr); 9 n" W8 s; Q3 d1 @% P SysFreeString(itemStr);2 d; w5 g& Y2 K# ^
SysFreeString(valueStr); U S6 \+ g5 g
8 `2 A% A$ g9 d6 P& w0 D, N: [
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/ c- a9 [% Z" l- ]
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????' L: g( C( X% V) q1 x9 c8 L
8 R+ q& M9 G* k * `( `8 S/ i! Y: E% l" e( c8 Z3 |2.这是request的程序3 W/ C2 X i- B+ R. ~5 Y
// Request a value from Extend- D& _& l# B. k- H7 l/ H2 {) [1 a
//; I9 U! h' p+ k" t, C
// Initialize the variant that will hold the BSTR. Set the variant's . I, I# ]9 P! A8 o# J9 Z// type flag to indicate the fact that this variant holds a BSTR. Place the % x. B e# l' |, s// BSTR into the variant structure. $ a9 x+ g4 n# _2 l; e! R( F6 |0 L6 E- B |2 V$ A1 q! J
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ( l' } v$ V' V+ q , {7 r. J) T# o$ n( Q1 l
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : e; D; s; a8 k1 }% @1 W3 z VariantInit(&requestVariant[0]); 8 T1 }# Y5 r a. y% S( j* D. v
requestVariant[0].vt = VT_BSTR;! o5 Z0 |" ?8 F& D
requestVariant[0].bstrVal = itemStr; ) A7 x/ C' m1 [4 q7 g2 F8 |5 e& V) \) Y/ Z# w7 l
topicStr = SysAllocString((WCHAR *) L"system"); : a4 F0 K% }% ~, S VariantInit(&requestVariant[1]); ) A2 X' D. L/ r- e requestVariant[1].vt = VT_BSTR;8 y; v, m: }6 k3 i# n% i
requestVariant[1].bstrVal = topicStr;7 H n: B8 J0 M$ n, E) V: \5 m6 D
$ V1 Q" B/ a- K7 g; X! T' s// Set the DISPPARAMS structure that holds the variant.: W! H: y' O0 `8 u
8 U: t1 F a7 r; p' u8 u5 j9 O
dp2.rgvarg = requestVariant;$ C- N+ P0 \- J& j; \4 _
dp2.cArgs = 2;) w- S/ Y3 o1 Z4 h2 a
dp2.rgdispidNamedArgs = NULL;1 @) Q' Z7 y$ V
dp2.cNamedArgs = 0;! S1 e+ Y9 J- z. i
: l& `2 p' |- y& \ }: `* N) l var.vt = VT_EMPTY; 6 c2 Y1 q9 \! s! a3 g7 X: H$ ~4 Q4 e- u) x, ?3 \4 N
// Call IDispatch::Invoke()* w# X" X4 K. a- n# {' l* D! ?
& `6 L' T2 g3 D ~6 t
hr = m_pDisp->Invoke(2 j' i& H+ T# D1 s+ s4 n+ O
requestID, 5 L: ?: ^! S t0 g0 {" L( P( q IID_NULL,, t- ?# J+ Y x
LOCALE_SYSTEM_DEFAULT, 6 v- X7 x. ?$ v4 b1 @. a1 U5 T2 m DISPATCH_METHOD, # J5 `( d8 P4 n- [; n &dp2,, N0 g9 g8 e9 ]) p1 l
&var,& D F0 e/ Z0 @* F7 G+ |
&ei,; u, X4 ]. b7 m' a. w
&uiErr); 8 Q. M$ k1 Z( i# w ]- m6 r3 X5 a, ?* } ! ?& I: {; K* a/ u6 r SysFreeString(topicStr); , C' @1 K. H \ SysFreeString(itemStr); - ~2 D5 h7 M1 Y. {请问该程序是获得extend里面的哪个值?& [. q: M5 E" F7 h- K$ K$ Q& 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????