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： ) @8 w6 ]+ i) V# x7 I+ tName = (WCHAR *) L"Poke"; : r; X5 P2 w7 f( z% I , }/ {' ~9 ?1 D5 K
hr = m_pDisp->GetIDsOfNames ( " D0 |' a# ]( l' l$ r, t5 }: z IID_NULL, // reserved4 E" d; g% T2 \5 I
&Name, // Array of names to get IDs for r: ]' u m, G' h3 L4 ?4 c
1, // # of names in the array - _ f! A" O/ i; z( S+ z1 y: \ LOCALE_SYSTEM_DEFAULT, // System locale # G, w! M b& j: R8 y3 @7 | &pokeID); // Array of IDs to fill on output2 p/ i0 o' x3 T n
+ `! s5 ?. u1 d- P7 ~& ^* e2 d if (hr)4 E f0 u" {# o- g; _8 B
{8 K5 x% U3 @1 @4 c' B' f5 E
MessageBox ("Get Poke Unsuccessful");' e% t d9 V. I- T+ k' L* x
return;, J- M2 _: U% O: M& p
} 5 d) d; v/ s4 i& d& x/ {) b+ y( g; Y% f
/**************************传递数据给extend**************************************/ * d9 t5 H' x# [5 d8 \ pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);& N# G' Y: C1 j: C2 U
. q9 n# H4 U! L$ E
valueStr = SysAllocString((WCHAR *) L"1232"); 9 j% U3 @4 H2 j- E$ t! e; x- A/ z VariantInit(&pokeVariant[0]); . y, v Q" x6 N( a" ]7 L! l pokeVariant[0].vt = VT_BSTR;& E( M( V# B- T1 W6 _8 y
pokeVariant[0].bstrVal = valueStr; 1 O5 }+ h6 @7 m1 \2 l5 }# m0 ?8 \, k' f0 U" I* a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");1 _6 g7 S( x+ I& \: _9 \
VariantInit(&pokeVariant[1]); % n1 E% O' C( p& I1 E pokeVariant[1].vt = VT_BSTR; , o( x: X9 j, i4 O6 ^" ^ pokeVariant[1].bstrVal = itemStr; $ ]% V( b$ `. l v0 [, A4 V$ r & ]3 e5 a, C: ^3 H( d topicStr = SysAllocString((WCHAR *) L"system"); S# X% Y) {5 [- F
VariantInit(&pokeVariant[2]); 6 Y2 {$ x0 J6 ?" r pokeVariant[2].vt = VT_BSTR; / S. R' M3 z# W' M" O" Z pokeVariant[2].bstrVal = topicStr;. L$ c" [3 K! d! P* @. q
' ~! g! u2 F6 U8 |$ |// Set the DISPPARAMS structure that holds the variant.8 f9 p0 J3 V. \; [4 {3 B3 ~
+ J: ^8 o3 x# P \4 e! \+ R! d z3 ] dp.rgvarg = pokeVariant; 6 n" s# [; |0 D; r0 N* S2 R, r dp.cArgs = 3; " @& F' T. {) m% y8 z dp.rgdispidNamedArgs = NULL; b/ z& B1 h" h$ _
dp.cNamedArgs = 0; : R2 l. C$ b# Y7 N) g) q ' ]1 y3 M1 H' d* i+ u* e// Call IDispatch::Invoke() 8 ?# O% _( \8 D! d5 }1 v \9 d6 P: \. E5 v hr = m_pDisp->Invoke(( ]% q7 l" D% g r; A* J) A+ ?
pokeID,6 z2 s2 m }% U' D3 j. w0 [2 [
IID_NULL,7 P9 ~ ?, X8 m' k3 z* {, \2 o
LOCALE_SYSTEM_DEFAULT,, L6 {$ c# H# H% ^
DISPATCH_METHOD,9 F) r0 Q9 H1 X- z
&dp,) f0 ^. f H# u$ w# a8 U. c
NULL,/ u$ _8 ^/ x' o! y% v% z5 E1 [
&ei,/ N& l0 V, i- `& W7 ]% L( H4 T7 e
&uiErr); + \1 p& t! W; z+ u2 L- F- J0 D5 U) K) P" k/ Y2 @* a g
SysFreeString(topicStr); " O2 d; `% N0 Y( e3 v% m SysFreeString(itemStr); 3 T4 A' a6 r( Z0 x& T SysFreeString(valueStr);5 a# M8 @' t/ j
" C. V5 Q% m5 A+ H5 t% X3 ?* V0 H+ V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# ^& L; x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？？？？ $ @$ m' Y( z" t3 [! X$ M$ L6 j ; W5 o- s4 E) D+ o; {9 ~8 ?8 g " D* t( ]( f2 @* V5 l0 u( P2.这是request的程序3 s9 t/ O. x. j4 E3 M
// Request a value from Extend , b* C9 L% E/ e) G% P- _// 7 \9 F4 e& ?8 ^, q( @// Initialize the variant that will hold the BSTR. Set the variant's4 w" b9 s8 n8 V) y' G
// type flag to indicate the fact that this variant holds a BSTR. Place the , c$ j& `4 I, q9 O9 t5 N// BSTR into the variant structure. 5 Y# ?! N" I& E( f5 \7 i2 \# {9 e+ Y- }) q* T$ j
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 7 t0 w) L B! l6 K 4 c1 I; U, v. S8 }7 I2 t
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); V1 T! E1 F5 |; m6 e6 Z- j5 R1 z
VariantInit(&requestVariant[0]); ' v# m5 o9 M5 t3 S; R requestVariant[0].vt = VT_BSTR; . I: e$ `; v% i& V2 b3 P requestVariant[0].bstrVal = itemStr; 4 K7 `( |6 d+ `% q9 p 2 A4 r; x0 w' h- B topicStr = SysAllocString((WCHAR *) L"system"); K+ }- V/ B3 e5 I2 q
VariantInit(&requestVariant[1]); 4 ]! `$ c+ M6 T, d7 T
requestVariant[1].vt = VT_BSTR;6 K+ W9 h0 t+ U: i% f/ `: `( ^5 ^
requestVariant[1].bstrVal = topicStr; 6 Q3 Y7 \) F/ y3 n- y0 X& D9 Z: b' Q M
// Set the DISPPARAMS structure that holds the variant. 9 J- @5 [0 [+ W" k0 _ - A, y+ O3 ?* I+ b8 E/ n3 a dp2.rgvarg = requestVariant; _' S: \- C! j9 t" Q j: X
dp2.cArgs = 2;6 b9 b& y1 t. y' w$ [" p
dp2.rgdispidNamedArgs = NULL;0 s3 ?* D* j2 {, K" ^% k
dp2.cNamedArgs = 0;$ B! P, U7 }1 e, q6 @: K8 m
- P [) X5 ^0 P var.vt = VT_EMPTY; ; {/ g2 ]) S- i( W$ s7 m) U! P! y0 k+ @6 p' A
// Call IDispatch::Invoke() , M# v( N0 P( p( P- F Z7 m* U/ V- J hr = m_pDisp->Invoke(0 P& V5 r' D, i0 T. O# t2 L
requestID, 0 q& d: h0 n9 ^8 E E IID_NULL,0 |# m; A+ ?6 W* B
LOCALE_SYSTEM_DEFAULT, 3 v$ v, D9 t/ i& } z DISPATCH_METHOD,0 j! N, {/ G c/ ?( q5 L! o9 f% v0 w
&dp2, # Y# L; y% V- c: F &var, " P ~1 B) p: W' s$ |3 G &ei,* E0 k0 ?2 I& `$ y. Y7 I* L
&uiErr);9 o, ?& m9 @, U9 ^
/ z; X2 ~2 `8 O. e+ Y/ N7 @ SysFreeString(topicStr);5 e7 s9 [7 N3 L& g w
SysFreeString(itemStr);0 n6 c5 {! z& M# ~% Q3 N$ q) v
请问该程序是获得extend里面的哪个值？ ! F/ ]- E( v* W4 ?* U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
