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：& _+ G) n: E* I6 h* C; p1 B1 B
Name = (WCHAR *) L"Poke"; 5 N. w9 c4 u7 M 8 i- d% o2 l& p3 ` I hr = m_pDisp->GetIDsOfNames ( % f: o& V* K6 m IID_NULL, // reserved9 E9 N0 K3 C; k6 W
&Name, // Array of names to get IDs for / E3 z) ?, @$ e0 p2 c: d 1, // # of names in the array9 S$ D9 ^; V& J5 H
LOCALE_SYSTEM_DEFAULT, // System locale7 `8 n; l% A8 v+ _5 M" e2 X
&pokeID); // Array of IDs to fill on output! T7 Z7 c9 L8 [/ p0 L3 D
) `; Y- R2 h ~2 W if (hr)" m# B, x# M5 ~# J7 u2 ]: R/ K1 o
{1 Z& S9 n3 [0 }
MessageBox ("Get Poke Unsuccessful"); ) x, y4 D" N' P8 D" }, w return;; `. m* v6 e3 R
} 7 [! S8 n; \1 z/ j9 F9 d+ g; R 8 Y! U. t \. ~; { L4 A* j& D/**************************传递数据给extend**************************************/ # Z4 g, W6 N9 a( Q- I pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); : O8 w; m4 D- w$ N0 q5 e' ] 6 M. S# [* P3 B9 `' ? L valueStr = SysAllocString((WCHAR *) L"1232"); $ u6 j4 G/ X; q5 a' J1 v& `8 K VariantInit(&pokeVariant[0]); ( a- Z( X8 Q% B0 U3 G4 X pokeVariant[0].vt = VT_BSTR;% o) U- ~3 p4 f% ? V" T
pokeVariant[0].bstrVal = valueStr; U1 s- @- V9 P8 B. {8 w 0 e8 N2 t% @6 ?& c4 f- T itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");# G: _! y% Q7 Y" g
VariantInit(&pokeVariant[1]); ( ~* W- e/ F" i m/ e1 @
pokeVariant[1].vt = VT_BSTR; ( |7 ?6 ?5 I N1 l pokeVariant[1].bstrVal = itemStr;7 }. w: J7 d- V9 ]4 u
; K8 l. ?3 ~5 G2 W- c: G topicStr = SysAllocString((WCHAR *) L"system"); . {- r" g2 W, `* u* H& C VariantInit(&pokeVariant[2]); / U5 K* y) Z0 S+ ?1 I) h pokeVariant[2].vt = VT_BSTR;; G$ I+ X; E) V9 ]5 F
pokeVariant[2].bstrVal = topicStr;7 a( R/ ^, E; X; p' | o. i
6 z% Z4 F$ t/ {// Set the DISPPARAMS structure that holds the variant.' E5 O5 p+ d% y* c' Y
. b+ e6 z Z7 S& `
dp.rgvarg = pokeVariant;4 r; p; l1 z' [
dp.cArgs = 3; / H7 w. o& x. t/ @9 P1 c dp.rgdispidNamedArgs = NULL;/ Y1 Y6 U' ?/ o
dp.cNamedArgs = 0; - \, n7 x) b) A3 S9 ^5 b* o " R# R- B4 a1 f u" q$ m2 `// Call IDispatch::Invoke() + j" ^( b4 d* U1 A. H 2 y, l5 X' d! s/ k; \% o hr = m_pDisp->Invoke(& a/ R2 Q9 B+ I) |
pokeID, 5 D2 K: J; u9 p) y0 J Z' Y2 v IID_NULL, 3 s: A9 ^6 s. q- n# W x, N% P3 v LOCALE_SYSTEM_DEFAULT,% r* H, f) g6 ~8 F
DISPATCH_METHOD,5 g4 x0 L9 A5 `9 e( N7 P
&dp, 6 g9 l+ r" O6 c5 D9 M8 T/ M NULL, $ A5 _: P7 ~! J2 r4 _ &ei, * K- e3 S" f/ |% E) @; g &uiErr);0 P% |0 ~9 Y0 \6 b% O2 R# b# B1 L$ {
4 g3 w+ d/ _& c/ `
SysFreeString(topicStr); : J" @, y' B9 X/ ^" R! `/ O2 u% } SysFreeString(itemStr);1 g; N. }; f8 z3 r
SysFreeString(valueStr);/ H( Z2 a3 U2 k* ]7 y: I
& L t7 {4 O1 ^; T' Z5 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？？？& A9 Z' V" Q3 ^) D! C
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 I o5 Y6 v( r; L7 w
9 ~' v F1 X1 _$ a P$ r
/ M$ ^" A- z" F! P8 K
2.这是request的程序 $ c( i- I) j. w. p0 O( ]3 ]// Request a value from Extend ! E0 f, t$ B2 J+ B8 o4 X// . U5 |* _2 r! W// Initialize the variant that will hold the BSTR. Set the variant's$ Z0 {3 t) H2 C) [$ }& `% }
// type flag to indicate the fact that this variant holds a BSTR. Place the( a( y5 H% Q. W; P8 a4 Z/ `2 K
// BSTR into the variant structure. + [ A4 U. B2 d2 z/ B6 d7 m* C' K% }- q" M
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 6 k. e& p' ~4 x, _6 n0 P$ O( n2 f M3 U( C* X7 S itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");5 b& H' H4 m. G* v) X- G8 ]8 g
VariantInit(&requestVariant[0]); # F& j/ m/ `$ f' C) E) e requestVariant[0].vt = VT_BSTR;. f+ Q8 m- J) P. s6 L
requestVariant[0].bstrVal = itemStr; & |: A6 V& A" y6 @ & K; D0 H5 T. K, N% i6 u topicStr = SysAllocString((WCHAR *) L"system"); * v5 w! b2 ?! ?, J VariantInit(&requestVariant[1]); : O# y. i! ?+ h- S: h% }% A requestVariant[1].vt = VT_BSTR;0 u% G2 x5 p' R4 P8 n3 d7 c
requestVariant[1].bstrVal = topicStr;1 f( J9 S4 v0 D9 A1 G$ V0 [0 U
3 A# d" e6 d! g( `// Set the DISPPARAMS structure that holds the variant.' I7 M# ^- |9 C2 m6 l
+ p0 `+ t! h$ l# \$ A dp2.rgvarg = requestVariant; ; K4 {' Y# d% K; y4 C dp2.cArgs = 2; 5 T# j4 I, Z6 n# A dp2.rgdispidNamedArgs = NULL; - z+ \3 A3 h- a7 u( ^5 R dp2.cNamedArgs = 0; % M7 o. S0 Z* u; _: ]' N! ?! a G( s+ o3 g$ I7 a- M a5 I5 B* E
var.vt = VT_EMPTY; $ A$ r( I7 b. H3 z! i; `" m1 t) e - \& a4 ` P3 D- ~( ?7 F// Call IDispatch::Invoke() ! |, C2 S9 p/ T% P7 T S2 I- I2 x5 x: w( J. w
hr = m_pDisp->Invoke(" s, @% {# ?3 O& E
requestID, % k8 O' ~! A3 ~- C& `. i, d IID_NULL,0 `5 G( Z8 A6 G' r' \( l( l* z
LOCALE_SYSTEM_DEFAULT, b0 S `1 Q" T DISPATCH_METHOD, 7 R' s$ h) L* q &dp2,% ]6 ~, H( B% _+ {6 r- n! j, B
&var,' `) ?$ C6 E6 v5 R* a
&ei,0 G& }! m8 {7 I! v
&uiErr); ( g v z* p( M9 a. |6 ? L6 y! j8 u) i6 W' B5 B7 E1 {: |& [ SysFreeString(topicStr); $ n& {( Y) r: r/ ]# T2 S* V SysFreeString(itemStr);" D1 y9 s5 u& n; `, z; w! b
请问该程序是获得extend里面的哪个值？4 O7 E- k5 \2 n
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
