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:+ c- a$ B h) {7 |7 H
Name = (WCHAR *) L"Poke";+ W, e) v* X4 f ^
4 \" o Q) g* {
hr = m_pDisp->GetIDsOfNames (* ^4 B- q6 N2 |; g2 n* ~" x
IID_NULL, // reserved / |9 k9 Q% G, q4 d, m3 s6 F &Name, // Array of names to get IDs for6 M3 w+ K$ a" @' u* `) r4 L
1, // # of names in the array* O& K! e" Z, V, C! P% ~
LOCALE_SYSTEM_DEFAULT, // System locale 1 C5 p( @6 @! a &pokeID); // Array of IDs to fill on output - I3 y. L; p1 G5 _2 }' `% m) A! j % v l" a9 A4 n: u7 i# y$ I" P if (hr) ; s4 f; U* Z4 a l; ?% O {7 n2 }. V0 ]3 ]9 L7 e# H; ~' E
MessageBox ("Get Poke Unsuccessful");1 |* `6 S5 l9 R; Z# D
return; / q# T" o5 U/ U7 y M6 t* m" M } * @* G0 p0 J4 p# H % \# [3 }) Z( Y: ^0 M/**************************传递数据给extend**************************************/; ^; y& j/ y3 o' P* _8 n8 `) ?/ O
pokeVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *3); ! A, i# [5 Q$ |- Z ( V d' v& y4 o
valueStr = SysAllocString((WCHAR *) L"1232"); # j! C, l% i# E2 o2 {& \ VariantInit(&pokeVariant[0]); $ ~; s' g/ q& p+ k" G+ _! t6 m pokeVariant[0].vt = VT_BSTR; 4 }: M, H. w8 R$ c pokeVariant[0].bstrVal = valueStr; % @& c( v+ i9 j v7 \0 j. G$ \ ; ^: A5 h$ L4 X) f itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0");" x: [+ l. {: `7 z' t' b
VariantInit(&pokeVariant[1]); , {9 B2 b2 m1 T1 w' D( s
pokeVariant[1].vt = VT_BSTR;% V) _0 F" H/ T6 y' d
pokeVariant[1].bstrVal = itemStr; ( f. D. l4 G( f! a; { 8 \2 C4 f8 r8 r$ G! X& B$ I topicStr = SysAllocString((WCHAR *) L"system");% A7 i9 M5 F- N$ u
VariantInit(&pokeVariant[2]); ' u5 D7 C6 X6 ~
pokeVariant[2].vt = VT_BSTR; : F4 T. [: F$ t3 d( b3 |: {+ g pokeVariant[2].bstrVal = topicStr; V2 a4 ~5 E5 h% f8 g& B2 K; f4 G
// Set the DISPPARAMS structure that holds the variant.9 v$ P' R! t9 `- {9 r1 y! H8 H; w: S
1 }1 y( v9 i& Y# l dp.rgvarg = pokeVariant; . y/ B, P _9 Y, S2 o dp.cArgs = 3; ( H5 ?( x* c( y" W3 W dp.rgdispidNamedArgs = NULL;4 w9 e) G! `: n$ `! r6 M: E
dp.cNamedArgs = 0;4 e- J! y: }- H1 f
# P! d6 S2 m: L1 O
// Call IDispatch::Invoke() 3 m% v- E( ^$ d) s9 V/ ^ , }1 n7 @# i: @+ s. S( B hr = m_pDisp->Invoke(' e, M$ W" [( U N7 g3 l
pokeID, + X, b* W# m0 k0 _0 j IID_NULL, . y( S3 F( h' V+ m: E LOCALE_SYSTEM_DEFAULT,+ X; m! @3 m; g8 ~$ ?. S& m
DISPATCH_METHOD, 1 @' }3 e; l; F) P9 t &dp, ; y' r7 `; w) H" J4 J8 V NULL, ]2 j. Z5 P% J, Z+ R+ a" _1 [$ f# d &ei,% r2 n! s) {' c$ a
&uiErr);$ s4 E- |1 V4 g9 B
- g# K) N5 s6 ?% Q/ q SysFreeString(topicStr);; M& X2 A1 ^9 ?+ n- G
SysFreeString(itemStr);( F% h' `8 r* N7 w/ D
SysFreeString(valueStr); p5 D$ y- t. Y% Y' y( w ! D6 x+ c6 c, O. D) g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???- f5 r. e' Q$ k0 C! y
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????( U: V( Q9 l+ X1 Q7 L0 K
9 e) u3 R1 j0 Q% p @6 j* H- O " o+ S# R- A* u: `3 p3 y2.这是request的程序; U- l' C9 w" G) x9 U, I* N$ q
// Request a value from Extend 7 L+ H. \( }7 H* B3 w* |1 |$ v9 c// ' f0 V+ A) H8 r# R4 H" c// Initialize the variant that will hold the BSTR. Set the variant's, @' T" ~2 b; Q! a- |9 J3 l$ R
// type flag to indicate the fact that this variant holds a BSTR. Place the3 S( t& ] j; R; t: `( o; x
// BSTR into the variant structure. z8 H+ t* e6 o' v+ f4 a! p9 D
( }! O! P- T, R- s
requestVariant = (VARIANTARG *)malloc(sizeof(VARIANTARG) *2);% R. \$ d7 r: Y& [9 L1 n
/ e1 c% [( [- U, M- q! f" O: s
itemStr = SysAllocString((WCHAR *) L"global0:#0:0:0:0:0"); s, j9 o4 {2 V, T n, Y VariantInit(&requestVariant[0]); 4 n# I* L/ F1 b1 O C requestVariant[0].vt = VT_BSTR;2 ?, S6 W' e4 v9 R
requestVariant[0].bstrVal = itemStr; / L9 B: j. ]4 H( Y* l7 l ; G1 B7 n. O$ `0 y: Y topicStr = SysAllocString((WCHAR *) L"system"); k( h5 T) u" x$ o: K
VariantInit(&requestVariant[1]); 6 p9 z+ v, }1 H& _* Q8 v
requestVariant[1].vt = VT_BSTR;( G& ?2 w6 c3 {9 v) @3 S
requestVariant[1].bstrVal = topicStr;2 W1 f5 {8 v! a) w R
/ S: i6 P. {/ e7 D// Set the DISPPARAMS structure that holds the variant." y0 ?/ g; D+ \4 j0 y. C