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：* H B( s' d f$ V H, S3 s @
Name = (WCHAR *) L"Poke"; $ ^0 Y' C* q: E6 E; M) }% g , I1 z( s1 B8 z" Z- x" g# Q. v
hr = m_pDisp->GetIDsOfNames (/ {7 f5 z+ k( X( U4 ?9 B1 m
IID_NULL, // reserved' G J4 j* d# B, |& L4 b
&Name, // Array of names to get IDs for 1 D0 l8 T7 I% P4 A, Y- J" `# b a 1, // # of names in the array ; I# f, s3 L+ A2 t LOCALE_SYSTEM_DEFAULT, // System locale ( o/ T/ S5 Z! i0 q% l, a! \/ _% F &pokeID); // Array of IDs to fill on output' e' r3 p! R0 g! v1 W+ k1 x- ~3 [
/ M. z, M+ r" ?/ d+ K9 j. j if (hr) 5 P; N0 a3 j* `$ Z7 Q {- d# [' ^) E( y( ~3 u
MessageBox ("Get Poke Unsuccessful");: ], W% }( Y7 O, |$ Y/ y
return;. D+ R* s! \9 O( I& N8 h
} # F7 ?8 [ U* I4 T " E0 }; i5 x* [$ e6 L5 u7 w% t# W: f/**************************传递数据给extend**************************************/; _# f7 R5 g' X/ T0 r4 H* u$ b. Z& k
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); # B+ x9 p) z1 p4 l& D3 a _' \ ' I5 p. t2 b3 b' r3 {: z. Q
valueStr = SysAllocString((WCHAR *) L"1232"); : P6 |9 C; X/ G# B$ A) b7 b: q VariantInit(&pokeVariant[0]); 1 h7 T) Q$ j! C
pokeVariant[0].vt = VT_BSTR;; A4 I: m% o8 |: \, h* h
pokeVariant[0].bstrVal = valueStr;1 Q$ O7 y; M8 V4 U9 p: E) Z1 J$ F
4 b; H+ }; f7 x( H
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");- i' J+ m3 R! ~1 N" w8 F: m: k
VariantInit(&pokeVariant[1]); 4 }( x2 o9 h& @1 O pokeVariant[1].vt = VT_BSTR; 6 ?6 }" I' G8 ?% ^) {# y$ U+ ? pokeVariant[1].bstrVal = itemStr; 0 G) e' ^& K8 N# _ D! R( y0 ~ % d8 a( n' J; s; [( B topicStr = SysAllocString((WCHAR *) L"system"); , d! D' D, s- [ _ VariantInit(&pokeVariant[2]); ( ^3 F! H3 ^2 V7 K
pokeVariant[2].vt = VT_BSTR; ! g* O: t. U% H0 U; ]8 d( w pokeVariant[2].bstrVal = topicStr; Z( ?. T9 d6 O+ ?( z& h" [
6 {3 C3 f+ I7 [8 b. G# l// Set the DISPPARAMS structure that holds the variant.9 X5 `4 }" ?0 I* X2 s' s: g
; Q9 u5 G9 B0 q. f( A& O
dp.rgvarg = pokeVariant; * H+ e$ L- g" E6 { dp.cArgs = 3;4 I) o" H( [1 f5 }$ A
dp.rgdispidNamedArgs = NULL;) Q& {4 I) m0 N" \& e
dp.cNamedArgs = 0;5 s2 V$ {, l: n" k* U
5 X0 u5 B7 z" \6 X// Call IDispatch::Invoke() : |' Y. b- i- \: u0 ?9 ] , \9 M6 d+ O6 ^, L: h0 h8 H hr = m_pDisp->Invoke(# Y; K+ M1 l$ j# J" l# k& e
pokeID,- n q3 Q) V' S+ k+ l
IID_NULL,1 b3 w: x# B6 P) i
LOCALE_SYSTEM_DEFAULT,* f0 m3 l! f) |: f
DISPATCH_METHOD,/ a! K$ m9 U& J/ Q5 @/ v" d" e/ D/ t
&dp,( u. _0 k% D# R$ R
NULL, - V1 M4 m0 D5 j- r9 B# X3 X &ei,( ~* D b9 ]! t% o
&uiErr);0 g% a' h) {3 M
0 H: O/ R- t! i4 l' {5 a1 {2 |& Z
SysFreeString(topicStr); , }2 i3 Q# y" c4 @ l. c$ F SysFreeString(itemStr); . u! G+ ?" E7 U( c SysFreeString(valueStr); ( y: ^2 C5 t m% }8 y8 d. c" O) g. D# M6 L
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？？？ , g, M9 l' ~$ N# }1 [0 T* t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？？？？9 s& S9 j4 r, P2 {' G* ?; a
. l' Z8 J6 h# b : \5 h; \: n8 N) x' f: w! `2.这是request的程序! C3 ]; s P8 V. V+ ? x
// Request a value from Extend 8 v" l8 g" x7 Z j& f// , J: n3 k6 }" W! B6 s" k- Q// Initialize the variant that will hold the BSTR. Set the variant's . F7 H4 ~ i% r8 J3 z/ Q// type flag to indicate the fact that this variant holds a BSTR. Place the/ d; M o& L4 C3 R, k$ f! w
// BSTR into the variant structure.( z/ D4 V f/ O3 F
1 {1 K# V2 u, r
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); 0 i$ h" k- ?2 K 7 c5 S5 |) X J itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); - s; P% N* y# w# S5 u VariantInit(&requestVariant[0]); $ d3 \+ I7 m" T1 J1 s, v
requestVariant[0].vt = VT_BSTR;9 S# ]: A+ v) R% s4 y, n. T6 ^
requestVariant[0].bstrVal = itemStr;4 T" U3 S `% Q# S$ I. G
# {( I: N5 H6 \5 B
topicStr = SysAllocString((WCHAR *) L"system"); 8 f& N0 m1 m" y0 O& K; P7 h VariantInit(&requestVariant[1]); 3 T# j; a/ f. @8 U( Z2 Q requestVariant[1].vt = VT_BSTR; & j! x: g c( ^- q6 ]- i requestVariant[1].bstrVal = topicStr; ' B# ]* H. v( } s, H' X( F' Z4 o' G! x5 P
// Set the DISPPARAMS structure that holds the variant.. L5 m0 ~$ R: O6 ~; c5 |
2 z1 A. P: b" Z
dp2.rgvarg = requestVariant; 6 F# W% H& R* V dp2.cArgs = 2;1 i4 y3 z; ?/ v V
dp2.rgdispidNamedArgs = NULL; / o1 R/ G' C' i/ q L dp2.cNamedArgs = 0; . h& o7 A2 N8 { `. i" `& Z4 Z$ l- X* H( o1 [; }
var.vt = VT_EMPTY;& j/ e. e; _# i) q( I' T+ f) Y( e
6 v9 k& m3 Z- Q6 A# S# i# t
// Call IDispatch::Invoke() # U0 [ K0 X. P" ]5 ]" `. R) ~' o2 i2 n2 F! \& N: I
hr = m_pDisp->Invoke(9 W+ {0 d. E8 H# ] H8 E k
requestID,) p0 N( I0 } M- l* { d! \
IID_NULL, `4 D" Z) {0 ]/ D LOCALE_SYSTEM_DEFAULT, 6 D, R5 B2 w' R; | N, X DISPATCH_METHOD,* g$ [( s6 z0 b- R1 n- \
&dp2, - u, n1 c4 q5 j9 b &var, ! j9 f: {; p6 L- f# D- j2 M &ei, ' M* X; \4 Z& L0 T# {1 K" ~2 f &uiErr); 7 E6 U& I. D. [3 i + L* N1 a# i( Q0 r SysFreeString(topicStr);& L" k, z6 c1 d. B0 R* e+ c
SysFreeString(itemStr); - [5 E$ ?6 } C0 x+ R2 M3 g4 o7 `请问该程序是获得extend里面的哪个值？ / `5 R! P' j8 V( k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
