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:- E5 _# `; W" y& x
Name = (WCHAR *) L"Poke"; 6 U: M& L6 [2 [* s # r, a) t1 }: A4 P
hr = m_pDisp->GetIDsOfNames ($ {9 j4 r, a8 C8 g& v, p8 j2 P5 {
IID_NULL, // reserved9 e% R$ K" \2 C( k& g# m; V
&Name, // Array of names to get IDs for $ O0 x |( X# y 1, // # of names in the array 3 H; n/ d7 C$ @0 d0 w0 b LOCALE_SYSTEM_DEFAULT, // System locale. f8 }9 @: K5 P' n& W
&pokeID); // Array of IDs to fill on output, G! E- L, l1 w1 w
2 P* [3 b$ v% a1 M; {
if (hr)* M* Z4 S$ y" }3 c, ]& \
{' o5 V9 R& {/ V H% f7 u9 H
MessageBox ("Get Poke Unsuccessful"); ' ~8 Q8 Z9 ?8 x return;5 I- h+ V' A# S& ]
} & y% [) y( N. p" D: ^/ h, a* e& A $ ~, ^* {6 y1 R" ?& l! w& n( [/**************************传递数据给extend**************************************/" f! @$ y# `# O3 y1 v6 X3 m
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);1 `% C4 Y* w; X5 l7 L* W
6 h k- d9 n" R6 O' l3 f1 z8 L0 l" R/ w valueStr = SysAllocString((WCHAR *) L"1232");2 a) g. d& i' }
VariantInit(&pokeVariant[0]); ) v( s4 Z) \6 _, D, D- F pokeVariant[0].vt = VT_BSTR;* m. u4 J' J: n, K
pokeVariant[0].bstrVal = valueStr; 4 `. y, o; i/ P# R- { : v) }5 ~# {$ S. S/ D* U itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : f; r8 X. c4 C; A' {- K8 f VariantInit(&pokeVariant[1]); ' z0 u+ t9 F$ w6 f) ` pokeVariant[1].vt = VT_BSTR; ! o5 L i. p9 s! w h pokeVariant[1].bstrVal = itemStr; , h- t3 e ?* z, @0 I* G+ U! T% ?
topicStr = SysAllocString((WCHAR *) L"system");- L% s6 w' ?8 U3 V
VariantInit(&pokeVariant[2]); / E( i$ S2 M7 F+ @/ J4 }- _" @$ y
pokeVariant[2].vt = VT_BSTR;% X: ^4 S( a8 k; [! A" u
pokeVariant[2].bstrVal = topicStr;, @3 {3 I0 R4 I3 U5 h" Y- _
8 C. `0 x1 T. \% H2 K" x
// Set the DISPPARAMS structure that holds the variant.7 c2 g5 m! F5 A5 R0 ^0 K
; l: w% }0 @. C) Y dp.rgvarg = pokeVariant; , H& V" D( w; T) [( m, p dp.cArgs = 3; 7 M3 X7 a# x K4 ?4 ~" G: t2 V dp.rgdispidNamedArgs = NULL;9 n' `: `0 F/ ^ T- E" ?2 E
dp.cNamedArgs = 0; r$ k1 {$ \ H# K: b# F( \ u8 N" L' B# h
// Call IDispatch::Invoke()# V( M, f9 W! p1 I
# S" L! ^4 x Y* N2 f( i, d. A2 n$ n
hr = m_pDisp->Invoke(# I: F3 d* h! t) k
pokeID,' C3 d: n4 W* I- _: `
IID_NULL,# L- q0 B0 d& g# Y& \) _
LOCALE_SYSTEM_DEFAULT,& K# v8 U2 l0 u* p8 h
DISPATCH_METHOD,) a5 j- w9 \0 w$ m+ H
&dp, , z# V" j+ c4 h7 K3 D7 O9 w' x0 j, ? NULL, 1 E6 a, ^% U, k# P, ^$ j &ei,) f+ c3 Y1 e0 h+ t
&uiErr); - g3 b+ t( R8 l9 u& z% `' W$ w4 F: [0 Z. Q) T) ^3 d
SysFreeString(topicStr);0 m4 ?4 Y2 v1 I; g o' [/ m' K
SysFreeString(itemStr); ' m3 h2 z1 c4 [! H" A SysFreeString(valueStr);. `% B+ g. Q/ M0 K* e( P
4 d( j' V8 t, d3 q& X( U; E! w
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???- Z. S1 W/ u0 G7 u2 W! 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???? ) Y w! _7 q4 O! I2 d2 n7 P( H4 N) T& [7 q4 I2 a4 a
; z5 c6 ~( }% I* J5 \5 T2.这是request的程序- |3 u. y3 M- ?
// Request a value from Extend7 V2 m2 Q, T* c5 |
// 6 {- k) E& F2 U \9 L3 P B" f0 G& C// Initialize the variant that will hold the BSTR. Set the variant's* P( E, ]0 ^) v4 `. j1 l5 \
// type flag to indicate the fact that this variant holds a BSTR. Place the : x& O3 G4 ~& L( c2 P+ I$ A// BSTR into the variant structure. ) f Q* z F) N ) B2 z' A+ n8 U. t, `( P0 J. k requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2); ; X/ S- n- l# _3 }& W , A" _/ f" H( D; M- H$ K- ?) ^$ y
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); , s* B+ h8 y# u3 F( W VariantInit(&requestVariant[0]); ! |6 O( o# M; k5 r
requestVariant[0].vt = VT_BSTR; ' M. j; }7 x& D. D requestVariant[0].bstrVal = itemStr;! L/ u5 G* E% s3 h( [# j* r
8 R8 a* Q7 W o/ Y$ N4 I
topicStr = SysAllocString((WCHAR *) L"system");& O8 Q0 j, g. j/ x# B& t. A9 n
VariantInit(&requestVariant[1]); / t0 c9 ]' U6 A' V! j% o. e requestVariant[1].vt = VT_BSTR;) l+ }! f1 @5 v9 {; E* {/ U; ~
requestVariant[1].bstrVal = topicStr; ' v5 M0 B+ J, a5 C |, T) k8 M& H; t
// Set the DISPPARAMS structure that holds the variant.9 H/ Z/ X5 |' Z9 m: m