{"id":4107,"date":"2018-05-21T00:30:47","date_gmt":"2018-05-20T16:30:47","guid":{"rendered":"http:\/\/www.bookcard.net\/wordpress\/?p=4107"},"modified":"2018-05-29T20:54:05","modified_gmt":"2018-05-29T12:54:05","slug":"directinput_keyboard","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/directinput_keyboard\/","title":{"rendered":"DirectInput\u4e4b\u67e5\u8a62\u9375\u76e4"},"content":{"rendered":"
\"\"<\/a>
DirectInput\u4e4b\u67e5\u8a62\u9375\u76e4<\/figcaption><\/figure>\n

DirectInput\u662fDirectX COM\u7d44\u4ef6\u4e4b\u4e00. \u5b83\u8b93\u4f60\u7121\u9700\u7406\u6703\u300e\u9375\u76e4\u300f\u786c\u4ef6\u9a45\u52d5\u7a0b\u5f0f. DirectInput\u70ba\u8f38\u5165\u8a2d\u5099\u63d0\u4f9b\u7d71\u4e00\u63a5\u53e3,\u7576\u7136\u8f38\u5165\u8a2d\u5099\u9700\u5df2\u5b89\u88dd\u786c\u4ef6\u9a45\u52d5.\u800c\u4e14\u4f60\u9700\u8981\u5b89\u88dd\u300eDirectX SDK\u300f\u4e26\u8a2d\u5b9ainclude\u548cLIB\u641c\u7d22\u8def\u5f91,\u6216\u8005\u52a0\u5165\u5de5\u7a0b\u9805\u76ee\u4e2d.\u82e5\u4f60\u60f3\u8b80\u53d6\u9375\u76e4\u72c0\u614b.\u7528\u6cd5\u8207GetAsyncKeyState()\u4f7f\u7528\u57fa\u672c\u76f8\u4f3c.\u4f46\u5b83\u7684KEY\u9375\u4e26\u975e\u662fASCII\u78bc.\u82e5\u4f60\u6709\u591a\u500b\u9375\u76e4.\u5247\u6240\u6709\u7684\u8f38\u5165\u5408\u4f75\u5230\u55ae\u4e00\u8a2d\u5099\u4e2d.<\/p>\n

\u6f14\u793a\u7a0b\u5f0f\u6309\u9375\u76e4\u5728\u5c4f\u5e55\u4e2d\u986f\u793a\u5c0d\u61c9\u5b57\u6bcd:\u4e0b\u8f09<\/a><\/p>\n

\u6f14\u793a\u4ee3\u78bc.\u5728Init()\u4e2d\u8abf\u7528\u7576\u7136\u4f60\u9700\u6aa2\u6e2c\u8fd4\u56de\u503cHRESULT<\/p>\n

1.\u8abf\u7528DirectInputCreate()\u751f\u6210IDirectInput\u63a5\u53e3<\/p>\n

IDirectInput * direct_input;<\/p>\n

DirectInputCreate(GetModuleHandle(NULL),DIRECTINPUT_VERSION, &direct_input,NULL);<\/p>\n

2.\u7372\u53d6\u9375\u76e4, GUID_SysKeyboard\u70ba\u5168\u57df\u4e3b\u9375\u76e4\u8a2d\u5099ID\u78bc<\/p>\n

IDirectInputDevice * direct_keyboard;<\/p>\n

direct_input->CreateDevice(GUID_SysKeyboard, &direct_keyboard, NULL);<\/p>\n

3.\u8a2d\u7f6e\u9375\u76e4\u5354\u4f5c\u7b49\u7d1a, \u975e\u7368\u5360\u8a2a\u554f,\u8a2a\u554f\u8a72\u8a2d\u5099\u6642\u4e0d\u6703\u5e72\u6d89\u5176\u5b83\u61c9\u7528\u7a0b\u5e8f\u8a2a\u554f\u8a72\u8a2d\u5099. \u4e26\u4e14\u7576\u61c9\u7528\u7a0b\u5e8f\u5728\u524d\u81fa\u548c\u5f8c\u81fa\u6642\u90fd\u80fd\u6642\u7528\u8a72\u8a2d\u5099.<\/p>\n

direct_keyboard->SetCooperativeLevel(hWnd, DISCL_NONEXCLUSIVE |DISCL_BACKGROUND);<\/p>\n

4.\u8a2d\u7f6e\u6578\u64da\u683c\u5f0f. c_dfDIKeyboard\u70baDirectInput\u901a\u7528\u9375\u76e4\u5168\u57df\u5e38\u91cf<\/p>\n

direct_keyboard->SetDataFormat(&c_dfDIKeyboard);<\/p>\n

5.\u5f9eDirectInput\u7372\u53d6\u9375\u76e4.<\/p>\n

direct_keyboard->Acquire();<\/p>\n

6.\u4f60\u73fe\u5728\u4ee5\u53ef\u4ee5\u5f9e\u9375\u76e4\u4e2d\u7372\u53d6\u8f38\u5165.\u5728\u4f60Update()\u66f4\u65b0\u4e2d\u7372\u53d6\u9375\u76e4\u72c0\u614b.\u82e5\u4f60\u5931\u53bb\u8a2d\u5099\u9375\u76e4,\u9700\u8981\u91cd\u65b0\u5f9eDirectInput\u7372\u53d6\u9375\u76e4<\/p>\n

while(direct_keyboard->GetDeviceState(sizeof(UCHAR) * 256, direct_keystate)== DIERR_INPUTLOST)<\/p>\n

{<\/p>\n

if(direct_keyboard->Acquire() != S_OK)<\/p>\n

return false;<\/p>\n

}<\/p>\n

7.\u7576\u4f60\u9000\u51fa\u904a\u6232\u6642.\u9700\u8981\u91cb\u653e\u9375\u76e4\u548cDirectInput\u5c0d\u50cf<\/p>\n

direct_keyboard->Release();<\/p>\n

direct_input->Release();<\/p>\n","protected":false},"excerpt":{"rendered":"

DirectInput\u662fDirectX COM\u7d44\u4ef6\u4e4b\u4e00. \u5b83\u8b93\u4f60\u7121\u9700\u7406\u6703\u300e\u9375\u76e4\u300f\u786c\u4ef6\u9a45\u52d5\u7a0b\u5f0f. DirectI … <\/p>\n

\u7e7c\u7e8c\u95b1\u8b80 DirectInput\u4e4b\u67e5\u8a62\u9375\u76e4<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[52],"class_list":["post-4107","post","type-post","status-publish","format-standard","hentry","category-windows","tag-directx","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4107","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/comments?post=4107"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4107\/revisions"}],"predecessor-version":[{"id":4110,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4107\/revisions\/4110"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=4107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=4107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=4107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}