{"id":4112,"date":"2018-05-23T22:30:01","date_gmt":"2018-05-23T14:30:01","guid":{"rendered":"http:\/\/www.bookcard.net\/wordpress\/?p=4112"},"modified":"2018-05-29T20:53:53","modified_gmt":"2018-05-29T12:53:53","slug":"directinput_mouse","status":"publish","type":"post","link":"https:\/\/www.bookcard.net\/wordpress\/directinput_mouse\/","title":{"rendered":"DirectInput\u4e4b\u67e5\u8a62\u6ed1\u9f20"},"content":{"rendered":"
\"\"<\/a>
DirectInput\u4e4b\u67e5\u8a62\u6ed1\u9f20<\/figcaption><\/figure>\n

\u5728windows\u4f60\u53ef\u4ee5\u901a\u904eWM_MOUSEMOVE\u88ab\u52d5(\u6d88\u606f\u9a45\u52d5)\u63a5\u53d7\u6ed1\u9f20\u7576\u524d\u4f4d\u7f6e.\u4f46\u82e5\u5728\u904a\u6232\u4e2d\u82e5\u60f3\u5f97\u5230\u6ed1\u9f20\u300e\u504f\u79fb\u91cf\u300f\u548c\u300e\u6309\u626d\u300f\uff08\u662f\u5426\u6309\u4e0b\uff09DirectInput\u5247\u53ef\u4ee5\u5e6b\u52a9\u4f60\u4f60\u91cd\u65b0\u7372\u5f97\u6ed1\u9f20\u6bcf\u6b21\u300e\u504f\u79fb\u91cf\u300f\u548c\u300e\u6309\u626d\u300f\u4fe1\u606f(\u4e3b\u52d5\u8b80\u53d6).\u7136\u5f8c\u8b93\u4f60\u53ef\u4ee5\u91cd\u65b0\u7e6a\u756b\u65b0\u300e\u6307\u6a19\u300f. \u800c\u7121\u9700Windows\u81ea\u5e36\u300e\u6307\u6a19\u300f.\u82e5\u4f60\u6709\u591a\u500b\u6ed1\u9f20.\u5247\u6240\u6709\u300e\u504f\u79fb\u91cf\u300f\u5408\u4f75\u5230\u55ae\u4e00\u8a2d\u5099\u4e2d.<\/p>\n

\u6ed1\u9f20\u79fb\u52d5\u6f14\u793a\u7a0b\u5f0f:\u4e0b\u8f09<\/a><\/p>\n

\u6f14\u793a\u4ee3\u78bc.\u5728Init()\u4e2d\u8abf\u7528<\/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\u6ed1\u9f20GUID_SysMouse\u70ba\u5168\u57df\u4e3b\u6ed1\u9f20\u8a2d\u5099ID\u78bc<\/p>\n

direct_input->CreateDevice(GUID_SysMouse, &direct_mouse, NULL);<\/p>\n

3.\u8a2d\u7f6e\u6ed1\u9f20\u5354\u4f5c\u7b49\u7d1a(\u524d\u81fa) \u975e\u7368\u5360\u8a2a\u554f,\u8a2a\u554f\u6ed1\u9f20\u6642\u4e0d\u6703\u5e72\u6d89\u5176\u5b83\u61c9\u7528\u7a0b\u5e8f\u8a2a\u554f\u8a72\u6ed1\u9f20.\u7576\u61c9\u7528\u7a0b\u5e8f\u5728\u524d\u81fa\u548c\u5f8c\u81fa\u6642\u90fd\u80fd\u6642\u7528\u8a72\u6ed1\u9f20.<\/p>\n

direct_mouse->SetCooperativeLevel(hWnd, DISCL_NONEXCLUSIVE |\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 DISCL_BACKGROUND);<\/p>\n

4.\u8a2d\u7f6e\u6578\u64da\u683c\u5f0f. c_dfDIMouse\u70baDirectInput\u901a\u7528\u6ed1\u9f20\u5168\u57df\u5e38\u91cf<\/p>\n

direct_mouse->SetDataFormat(&c_dfDIMouse);<\/p>\n

5.\u5f9eDirectInput\u7372\u53d6\u6ed1\u9f20<\/p>\n

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

6.\u8f09\u5165\u6ed1\u9f20\u7d0b\u7406,\u4e26\u4e14\u80cc\u666f\u900f\u660e<\/p>\n

mouse->texture.IsAlpha = true;<\/p>\n

Load_File_Texture<\/a>(&mouse->texture, hInstance, filename);<\/p>\n

7.\u7d81\u5b9a\u7d0b\u7406<\/p>\n

Bind_Image_Texture<\/a>(&mouse->texture,GL_REPEAT, GL_REPEAT,GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR,GL_REPLACE);<\/p>\n

8.\u6ed1\u9f20\u5c3a\u5bf8<\/p>\n

mouse_size = 20;<\/p>\n

9.\u73fe\u5728\u4f60\u53ef\u4ee5\u5f9e\u6ed1\u9f20\u4e2d\u7372\u53d6\u8f38\u5165.\u5728\u4f60Update()\u66f4\u65b0\u4e2d\u7372\u53d6\u6ed1\u9f20\u72c0\u614b.\u82e5\u4f60\u5931\u53bb\u8a2d\u5099\u9375\u76e4,\u9700\u8981\u91cd\u65b0\u5f9eDirectInput\u7372\u53d6\u9375\u76e4.<\/p>\n

DIMOUSESTATE\u00a0 state;<\/p>\n

while (direct_mouse->GetDeviceState(sizeof(DIMOUSESTATE), &state) == DIERR_INPUTLOST)\/\/<\/p>\n

{\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ \u5df2\u5931\u53bb\u8a2d\u5099,\u91cd\u65b0\u5f9eDirectInput\u7372\u53d6\u9375\u76e4<\/p>\n

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

return false;<\/p>\n

}<\/p>\n

10.\u5b9a\u7fa9\u9f20\u6a19\u7d50\u69cb<\/p>\n

typedef struct DIMOUSE_TYP{<\/p>\n

int x, y;\/\/ \u6ed1\u9f20\u5ea7\u6a19<\/p>\n

int screen_width, screen_height;\/\/ \u7a97\u53e3\u5bec\u548c\u9ad8<\/p>\n

float size;\/\/ \u9f20\u6a19\u5c3a\u5bf8<\/p>\n

bool button_left, button_right, button_middle; \/\/ \u6ed1\u9f20\u6309\u9215,\u82e5true\u5247\u70ba\u6309\u4e0b<\/p>\n

TEXTURE texture;\/\/ \u6307\u6a19\u7d0b\u7406<\/p>\n

}DIMOUSE, *DIMOUSE_PTR;<\/p>\n

DIMOUSE mouse;<\/p>\n

11.\u91cd\u65b0\u8a08\u7b97\u6ed1\u9f20\u4f4d\u7f6e<\/p>\n

mouse->x = mouse->x + state.lX;<\/p>\n

mouse->y = mouse->y + state.lY;<\/p>\n

12.\u5224\u65b7\u662f\u5426\u8d85\u51fa\u7a97\u53e3\u908a\u754c<\/p>\n

if (mouse->x < 0)<\/p>\n

mouse->x = 0;<\/p>\n

if (mouse->x >= screen_width)<\/p>\n

mouse->x = screen_width-1;<\/p>\n

if (mouse->y < 0)<\/p>\n

mouse->y = 0;<\/p>\n

if (mouse->y >= screen_height)<\/p>\n

mouse->y = screen_height – 1;<\/p>\n

13.\u63d0\u53d6\u6ed1\u9f20\u6309\u9215<\/p>\n

mouse->button_left = state.rgbButtons[0] & 0x80; \/\/\u6ed1\u9f20\u5de6\u9375<\/p>\n

mouse->button_right = state.rgbButtons[1] & 0x80; \/\/ \u6ed1\u9f20\u53f3\u9375<\/p>\n

mouse->button_middle = state.rgbButtons[2] & 0x80;\/\/ \u6ed1\u9f20\u4e2d\u9375<\/p>\n

14.\u7576\u4f60\u9000\u51fa\u904a\u6232\u6642.\u9700\u8981\u91cb\u653e\u6ed1\u9f20\u548cDirectInput\u5c0d\u50cf<\/p>\n

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

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

 <\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728windows\u4f60\u53ef\u4ee5\u901a\u904eWM_MOUSEMOVE\u88ab\u52d5(\u6d88\u606f\u9a45\u52d5)\u63a5\u53d7\u6ed1\u9f20\u7576\u524d\u4f4d\u7f6e.\u4f46\u82e5\u5728\u904a\u6232\u4e2d\u82e5\u60f3\u5f97\u5230\u6ed1\u9f20\u300e … <\/p>\n

\u7e7c\u7e8c\u95b1\u8b80 DirectInput\u4e4b\u67e5\u8a62\u6ed1\u9f20<\/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-4112","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\/4112","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=4112"}],"version-history":[{"count":1,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4112\/revisions"}],"predecessor-version":[{"id":4115,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/posts\/4112\/revisions\/4115"}],"wp:attachment":[{"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/media?parent=4112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/categories?post=4112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bookcard.net\/wordpress\/wp-json\/wp\/v2\/tags?post=4112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}