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:# A- n" p4 g1 M
Name = (WCHAR *) L"Poke"; " e$ B1 C( @: I) h$ h+ e m + Y! s. Q1 x+ B7 e2 G5 c+ Y9 E hr = m_pDisp->GetIDsOfNames ( 5 V5 i9 L" e! B V6 } IID_NULL, // reserved& ?& X! D8 r3 {( ^# r% s. |
&Name, // Array of names to get IDs for ) [$ p( E, H5 e 1, // # of names in the array ! X5 ?! {9 d: n LOCALE_SYSTEM_DEFAULT, // System locale : g$ {! j4 o- v' H; {. y0 }' d& ] &pokeID); // Array of IDs to fill on output ! T+ x% o: h! q- m3 F$ f x! {8 q2 F 5 ` s$ w5 [; K+ I2 T5 T% S! [6 T7 A if (hr)7 a7 [1 b9 |' X# T
{8 N2 b9 [0 S. e* X# M2 |
MessageBox ("Get Poke Unsuccessful");5 ]- Q9 v; ~% J* e/ C, L m. q
return;5 ^) v' T1 g$ B' |4 W5 j$ |
} 2 a; I$ G' f( i/ _. Y % @# I9 U, m5 `& v) S) L, S/**************************传递数据给extend**************************************/: E% V V- @6 |2 z
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3);: R* Q1 T( K# m1 x
6 p2 w, L" b. h$ a0 w9 F/ i+ H x: n valueStr = SysAllocString((WCHAR *) L"1232");5 a/ {% @. F/ n9 L- a/ a
VariantInit(&pokeVariant[0]); d* I; j0 x( U5 b# ^ pokeVariant[0].vt = VT_BSTR; 7 Q. a+ ]7 u# I' ^. n) E( U3 S+ M pokeVariant[0].bstrVal = valueStr;$ X. ~; X" y' n z: [( R
5 g) r# L: ~8 W1 D/ D9 N3 h. w itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); : ` K2 ]; `0 o VariantInit(&pokeVariant[1]); 6 P+ l8 @" V) q9 O1 j4 K, b \. @
pokeVariant[1].vt = VT_BSTR;+ r9 m. F7 D [
pokeVariant[1].bstrVal = itemStr;* B0 M1 n0 w9 `% R9 Y3 N) J( w4 A Q
% w/ w0 A( p4 ^" M
topicStr = SysAllocString((WCHAR *) L"system"); 6 C6 X8 N- S9 c9 p VariantInit(&pokeVariant[2]); / ^& C; H" S$ X6 U( A5 o+ B0 U4 q7 N
pokeVariant[2].vt = VT_BSTR;" r9 D* {' ^- c& G# F3 G) B$ P
pokeVariant[2].bstrVal = topicStr;3 U+ Y" A4 i. s: g
: x, V* ]7 L' [& C$ g) u// Set the DISPPARAMS structure that holds the variant.5 I2 z. P6 x4 F+ W
. ? A- f P0 x" t1 X8 N dp.rgvarg = pokeVariant;7 \) N/ ^ U' }" T6 Z8 J
dp.cArgs = 3; 0 F8 A3 J# l" X# i1 T! S7 P dp.rgdispidNamedArgs = NULL;# L, l: e3 f0 ` b3 y# V3 V
dp.cNamedArgs = 0; ; n9 Z' G) Y# [/ l$ o3 ~ & L2 f5 f5 h: p! S2 T0 P* |% }% [// Call IDispatch::Invoke() # I& j3 u( ]! d9 S! z& t * z1 A7 r' l/ _+ t$ G b hr = m_pDisp->Invoke(: }5 H1 ~4 q& V2 e" M
pokeID, ; G+ N4 G/ S; ], T8 h IID_NULL, 4 l$ F* m+ y1 K' U LOCALE_SYSTEM_DEFAULT,. M% F% z) ~8 X# @
DISPATCH_METHOD, ! z, _) [. y; ~ &dp, $ ^5 Y+ p( x- U* [: ? NULL,& s! X5 ? V& R9 j2 j! k
&ei, ; a) {. M1 G/ i/ t& s( I, \ B A &uiErr); R8 x. ?8 n/ o; Z+ U. T
5 C& t7 [5 u1 o
SysFreeString(topicStr); , e I/ |9 X4 e% ]1 _ SysFreeString(itemStr);" A( p' }4 _4 H4 t
SysFreeString(valueStr);" a+ z4 R# Q0 X+ b
$ H L' ], ?% q) ^2 V, i! b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??? ; V* U3 H% g6 t# b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 i) S0 ?$ u' X2 l! g& s
2 {/ v& W4 W$ a$ Y6 b2 T, n7 |/ w$ Q g3 ~
2.这是request的程序 : s; C2 B: X M$ Q2 ]7 l# w$ a// Request a value from Extend 3 a0 A9 F7 m8 U1 ?- O0 l//; e! s3 J Q: p' T2 n4 `+ k7 `
// Initialize the variant that will hold the BSTR. Set the variant's ! L( n. R; c3 I% ]// type flag to indicate the fact that this variant holds a BSTR. Place the6 |$ X U0 H8 v& y0 R: Y8 `" [- h
// BSTR into the variant structure.5 _/ R0 z0 i' j5 `1 [: M
/ N, j1 Y- h7 W! h requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);# y, Y1 @# i* `3 ~4 w' e) ?
/ H) h- _$ ]8 G9 T! a
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");& c6 U9 E" F! f8 m4 a, B8 M
VariantInit(&requestVariant[0]); 5 z V2 k+ F3 y4 k requestVariant[0].vt = VT_BSTR; 4 w* F& o! J, V1 P requestVariant[0].bstrVal = itemStr;2 K* G& ~, g- ?! n5 l
+ F3 J, @0 a: Q, s topicStr = SysAllocString((WCHAR *) L"system"); . K" K' G: @" n' A2 W VariantInit(&requestVariant[1]); L e- ?& P6 [. D9 i requestVariant[1].vt = VT_BSTR;4 Q7 S' u0 }+ l; q7 K% V V4 ^
requestVariant[1].bstrVal = topicStr;, S* _5 z: {+ o1 y2 x" r
1 O6 U Y; l4 k* M b& H/ b; o
// Set the DISPPARAMS structure that holds the variant. 3 Z8 \: F1 C6 a5 b& L6 }3 v- e: d) Z9 X7 J! F
dp2.rgvarg = requestVariant;& A' m0 B( o- ?- Z, g/ C: i* W
dp2.cArgs = 2;& P: S6 _4 o# @2 T! s" U
dp2.rgdispidNamedArgs = NULL; 1 s. i% V$ W, D! D7 i dp2.cNamedArgs = 0; 4 n# a+ z! N1 O" k$ H7 R" P# r9 Q5 @
var.vt = VT_EMPTY;% Y9 M% {* ~/ D
8 g- e% }' c9 G
// Call IDispatch::Invoke()/ G$ A0 t) J' Y