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 }0 k4 c% x2 l) c; V
Name = (WCHAR *) L"Poke"; ( L5 S: S M7 X- P 2 D+ i0 ?( ~$ \& j i
hr = m_pDisp->GetIDsOfNames (1 N" s0 S3 Q" e" C- s. N
IID_NULL, // reserved6 t O' Y1 b+ p4 [! L3 e. t, F
&Name, // Array of names to get IDs for6 C3 S, Z# e. Z0 G4 H- e8 |3 W
1, // # of names in the array , W' S w/ n: {2 H) I3 J g# r+ Y LOCALE_SYSTEM_DEFAULT, // System locale . Z/ T1 l# Z* n! |3 e5 k8 U7 k &pokeID); // Array of IDs to fill on output ' m, ?7 `1 o. _( t" [8 x ' |/ X) q z2 i0 a) L
if (hr)4 l; [1 A2 f- L3 P3 w
{ 2 I, `; P5 S; e1 f* k2 @6 R MessageBox ("Get Poke Unsuccessful");5 K- I1 Y" K; u: Q6 T/ S
return; 6 |* u6 Q) `( j% Q }, T! M0 ?. N2 E* {2 [ F+ f) t
% m9 d" n/ B6 q, D8 d" L) W, Y/**************************传递数据给extend**************************************/( {7 Q/ @' J1 [% z. z V
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); $ t$ H: s B/ T# F* R1 x) Y, l : e5 k. C* g4 F' m# Y valueStr = SysAllocString((WCHAR *) L"1232");8 n& E1 A H0 l0 v* L
VariantInit(&pokeVariant[0]); / a$ A* f' \( A; ^0 B. J pokeVariant[0].vt = VT_BSTR;8 C: j) | F2 @1 @" E
pokeVariant[0].bstrVal = valueStr;! r* ^( s/ {, {0 K- x4 V- f
& X: q7 c3 G% W" K$ z" K+ q itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& i% S9 }& U# C. m! m% U }
VariantInit(&pokeVariant[1]); ' h8 I6 c" U, ~. n y pokeVariant[1].vt = VT_BSTR; - q8 u- I: D/ M: J' w pokeVariant[1].bstrVal = itemStr; & \! e% ^8 n, P- u $ @5 }+ f3 ?0 E) g: ^- s topicStr = SysAllocString((WCHAR *) L"system");; i3 e$ u( H. l2 S9 Y
VariantInit(&pokeVariant[2]); + b( v5 y1 `4 O8 ~1 Z
pokeVariant[2].vt = VT_BSTR; ( t3 P1 b' p, j pokeVariant[2].bstrVal = topicStr; 4 x8 _4 o; `4 X) R4 A3 R) _; X6 n( u, {
// Set the DISPPARAMS structure that holds the variant.. | F5 m% W+ r( y
! D- G% h# } c' l. a; H' x# X( {
dp.rgvarg = pokeVariant; ( `& v: T- d! o3 S- i; D) ` dp.cArgs = 3;! B4 I6 m9 W4 h% V
dp.rgdispidNamedArgs = NULL; + C" C$ s3 n" E9 [: Q8 ? dp.cNamedArgs = 0;4 s S4 q6 ^( {