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 {9 a" E/ \+ J" I: b
Name = (WCHAR *) L"Poke"; & l; u# z" w. ]2 P) j - ]1 W! |6 N' M* {. p8 @" ~ hr = m_pDisp->GetIDsOfNames ( ) _% S4 r. _! y IID_NULL, // reserved( n' y/ X9 N7 e9 B8 l8 A
&Name, // Array of names to get IDs for" F. \* F: e0 R' e" P
1, // # of names in the array & T Z4 u# i1 @- ]( F LOCALE_SYSTEM_DEFAULT, // System locale . T7 H# F. A# j: Y+ z &pokeID); // Array of IDs to fill on output / w. d5 i1 ?9 v* s2 j R* t * D7 y' ?& X1 c% d* W if (hr)9 q; j/ |& O% n; i, n4 N6 ?
{ + q% D. }7 F$ H) Z* u7 X MessageBox ("Get Poke Unsuccessful");& f/ {! o9 I3 d/ T
return; 0 v7 q: X; [( X6 ^2 P/ B) k" V# H }# Q. m4 u( ^+ U6 B, |3 R
- F) k7 g5 s5 |/**************************传递数据给extend**************************************/ 5 x% [# ~5 M' O* a0 g: U' A' l pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);* r# ?0 u0 |8 |+ f9 A7 z3 ^
. P1 P5 k9 P6 H) S
valueStr = SysAllocString((WCHAR *) L"1232"); " m+ |. K0 Q9 t VariantInit(&pokeVariant[0]); / q) Y* }9 P. e! O
pokeVariant[0].vt = VT_BSTR; 7 n# v% i. A [. k2 b pokeVariant[0].bstrVal = valueStr; 0 I. m$ `( u# B( w& b" S - l& F j& @7 ?( q0 K1 O- P0 Y itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); o& b6 R! ?6 x+ h5 F' @1 U
VariantInit(&pokeVariant[1]); 6 F4 Z9 |" P0 g$ f( k# u pokeVariant[1].vt = VT_BSTR; # f9 P4 V+ r3 n. M/ N pokeVariant[1].bstrVal = itemStr;2 j3 Z. J+ t) a0 r0 G
/ d1 J4 o7 T" r5 a topicStr = SysAllocString((WCHAR *) L"system");: I8 t1 L( p, T+ o x
VariantInit(&pokeVariant[2]); & U; G) B- r# R+ u' X @9 @6 D% L3 C
pokeVariant[2].vt = VT_BSTR;3 X3 k! E" K$ i- x% T$ i
pokeVariant[2].bstrVal = topicStr;& s1 g; z8 E, ` R* {
/ q5 W0 n5 _2 [9 ?* V+ g
// Set the DISPPARAMS structure that holds the variant.+ }! X3 A; B x/ G' t% @% a
" F) _6 {! @- D$ x4 \0 P& E dp.rgvarg = pokeVariant;- `" } w1 h2 s' A& w
dp.cArgs = 3; 2 Q& c6 T/ b1 g0 x dp.rgdispidNamedArgs = NULL; 6 E* r: {4 I0 M) \ dp.cNamedArgs = 0; " T! Y* ^5 Y9 r3 z) E, Q3 H4 p4 m: ^* E! o5 {% z
// Call IDispatch::Invoke()0 L u1 n9 }7 \! E; v$ p9 A
) G1 ~5 w$ x5 n) f0 V; c7 P# ^ hr = m_pDisp->Invoke(3 v0 }! y7 k; S
pokeID,, N% S9 M% o6 { h/ L" K& H' V
IID_NULL,6 l* P" a- H/ z3 ^$ @1 D0 w
LOCALE_SYSTEM_DEFAULT, 4 Q7 ~1 R: q7 w) g( `6 f DISPATCH_METHOD,1 r% z8 F: o& T f
&dp, $ h* i2 p9 _4 q! |! v. P5 G NULL, $ }2 q+ n$ W! D2 A& z+ K &ei," M+ l* N8 A+ |0 n; H
&uiErr);9 ?3 r! G- ]6 u5 W; N3 O& U
; }) L- w9 ^; @5 @- l4 d& k
SysFreeString(topicStr);3 h2 Y( H& n0 i: `
SysFreeString(itemStr);* o' K+ R) Z9 L, f' J6 X
SysFreeString(valueStr);! u. q8 ` f: @
( j4 w. _( `9 E! X7 E! }) `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？？？5 N" \3 z ]6 W( [' ~
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？？？？ 7 ?3 h0 _7 ]& m * h0 U: I5 q* p5 _ ' ^/ a& e5 p: v8 D& v% Q2.这是request的程序: Y1 `# r8 M' i' t5 a1 ?& n
// Request a value from Extend $ ?# S3 ^% G+ X, s: w5 P. G//; J0 s* X$ Q# g" U
// Initialize the variant that will hold the BSTR. Set the variant's 8 b; ~, G0 n/ {+ O. p0 c7 O$ l// type flag to indicate the fact that this variant holds a BSTR. Place the + d3 @8 @+ t. C) C- g- D' [ f5 `// BSTR into the variant structure. " N, f& d: o" u/ \2 d2 x& M" n- X& ]6 h
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); + G3 V1 a- O5 x* B+ n* |; R" r $ u, S; m' g! |4 w1 s itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");; l/ u# n+ C1 E
VariantInit(&requestVariant[0]); ! {7 t9 ^& p* z9 T% k
requestVariant[0].vt = VT_BSTR;8 H; Z5 t; c( x1 }! k5 F4 i
requestVariant[0].bstrVal = itemStr; 3 p' m S+ t, a4 R* r* ~* Z$ ^( i# t# e+ Z( Y5 [
topicStr = SysAllocString((WCHAR *) L"system"); ) T/ y8 Z; \0 ^; I2 E VariantInit(&requestVariant[1]); / `. A" z& E0 r6 M requestVariant[1].vt = VT_BSTR;9 W8 ]+ s. v* J3 C8 e" \# M" N
requestVariant[1].bstrVal = topicStr;1 j% U1 s% \- B9 e0 Z" g
7 A3 \8 j* Z0 x" w% C// Set the DISPPARAMS structure that holds the variant." i" c( ~: I9 A7 q
. Y: n- L c; j" U2 c5 Y dp2.rgvarg = requestVariant; + X4 |6 X: Q2 v+ F. u( _ dp2.cArgs = 2; $ G" O1 l: {- G5 u+ i dp2.rgdispidNamedArgs = NULL; & `4 Y8 M. {( v" T; D, v$ G dp2.cNamedArgs = 0; , T8 F: \5 S: | 2 N: H: i M | var.vt = VT_EMPTY; $ t( {, ^, `8 t" @7 G7 Z# \ + l; Y1 r& ~" X- d' I' S8 [// Call IDispatch::Invoke() 8 J9 M6 q' d7 C8 p/ _& C2 }7 u. k) M/ [
hr = m_pDisp->Invoke( & `2 j3 ?. [4 E( W) x requestID, ' J( P/ ~% N( q" l IID_NULL,% p) [: x: P* K1 V/ X2 B
LOCALE_SYSTEM_DEFAULT, ( W6 d; t, @* P DISPATCH_METHOD, 4 M5 N7 z8 k. J" O E3 O/ X5 r) V! u &dp2,& E$ x' `0 y$ |" P) ^! }* e I5 o+ y
&var,! v- v1 D" A1 s- Z
&ei,$ F j0 L# ^! Y" _4 G
&uiErr); 5 z8 D# i! o4 ~1 z. L7 N: r% {- G" U
SysFreeString(topicStr);( n" H, Y$ ], C
SysFreeString(itemStr);& H4 k- w& }! l& e# I$ D: J
请问该程序是获得extend里面的哪个值？ 6 L/ S' o# k4 \+ Y. `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
