\nToday’s Little program shows how to read mouse input from\na console program.\nYou might use this if you are writing a console-mode text\neditor with mouse support,\nor maybe you want to want to add mouse support to your\n\nroguelike game<\/A>.\n<\/P>\n \nBut I’m not going to implement the game itself.\nInstead, I’m just going to print mouse coordinates to the\nscreen.\n<\/P>\n int __cdecl _tmain(int argc, PTSTR argv[])\n{\n HANDLE hConsole = GetStdHandle(STD_INPUT_HANDLE);\n BOOL fContinue = TRUE;\n DWORD dwEvents;\n INPUT_RECORD input;\n while (fContinue &&\n ReadConsoleInput(hConsole, &input, 1, &dwEvents) &&\n dwEvents > 0) {\n switch (input.EventType) {\n case KEY_EVENT:\n if (input.Event.KeyEvent.wVirtualKeyCode == VK_ESCAPE) {\n fContinue = FALSE;\n }\n case MOUSE_EVENT:\n _tprintf(TEXT(“X=%d, Y=%d; buttons=%x, shift=%x, flags=%x\\n”),\n input.Event.MouseEvent.dwMousePosition.X,\n input.Event.MouseEvent.dwMousePosition.Y,\n input.Event.MouseEvent.dwButtonState,\n input.Event.MouseEvent.dwControlKeyState,\n input.Event.MouseEvent.dwEventFlags);\n break;\n }\n }\n return 0;\n}\n<\/PRE>\n \nOur program just loops around collecting input,\nand if it gets a mouse event, it just prints the coordinates.\n“Insert game here.”\nIf the user presses the\nEsc<\/KBD> key, then we exit.\n<\/P>\n \nRun this program,\nmove the mouse around the window, and… hey,\nnothing happened!\n<\/P>\n \nOh right, because we forgot to enable mouse input.\nLet’s try that again.\n<\/P>\n DWORD dwPreviousMode = 0;\n GetConsoleMode(hConsole, &dwPreviousMode);\n DWORD dwNewMode = dwPreviousMode | ENABLE_MOUSE_INPUT;\n SetConsoleMode(hConsole, dwNewMode);\n }<\/FONT><\/p>\n BOOL fContinue = TRUE;\n …\n }<\/p>\n SetConsoleMode(hConsole, dwPreviousMode);<\/FONT><\/p>\n return 0;\n}\n<\/PRE>\n \nRemember, this is just a Little Program,\nso there is little to no error checking.\n<\/P>\n \nOkay, now you can run the program,\nand as you move the mouse around the window, you get…\nWell, it depends.\nSome of you may get output,\nand others may get nothing.\n<\/P>\n \nThose of you who got nothing aren’t getting anything\nbecause you set Quick Edit<\/I> mode on your console.\nQuick Edit<\/I> mode commandeers the mouse and uses it\nfor copy\/paste operations rather than passing it through\nto the application.\nIt’s handy if you spend most of your time using programs\nthat don’t use the mouse,\nsince it saves you from having to go to the\nEdit<\/I> menu all the time.\n<\/P>\n \nIt’s not so handy if you’re running a program that actually\nwants to use the mouse.\n<\/P>\n \nAdd another line of code to the program to disable\nQuick-Edit mode:\n<\/P>\n \nOkay, now when you run the program and move the mouse around,\nyou get… still nothing.\n<\/P>\n \nAh, because\n …\n SetConsoleMode(hConsole, dwPreviousMode |\n ENABLE_EXTENDED_FLAGS<\/FONT>);\n<\/PRE>\n \nOkay, now you can run the program,\nand as you wave the mouse around,\nthe coordinates will be printed to the screen.\nWhew.\n<\/P>\n \nExercise<\/B>:\nDiscuss why there is the crazy\n Today’s Little program shows how to read mouse input from a console program. You might use this if you are writing a console-mode text editor with mouse support, or maybe you want to want to add mouse support to your roguelike game. But I’m not going to implement the game itself. Instead, I’m just going […]<\/p>\n","protected":false},"author":1069,"featured_media":111744,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[25],"class_list":["post-4453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldnewthing","tag-code"],"acf":[],"blog_post_summary":" Today’s Little program shows how to read mouse input from a console program. You might use this if you are writing a console-mode text editor with mouse support, or maybe you want to want to add mouse support to your roguelike game. But I’m not going to implement the game itself. Instead, I’m just going […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/4453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/users\/1069"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/comments?post=4453"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/4453\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/media\/111744"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/media?parent=4453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/categories?post=4453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/tags?post=4453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n#define UNICODE<\/A>\n#define _UNICODE\n#include <windows.h>\n#include <tchar.h>\n#include <stdio.h><\/p>\n
\n …\n HANDLE hConsole = GetStdHandle(STD_INPUT_HANDLE);<\/p>\n
\n DWORD dwNewMode = dwPreviousMode | ENABLE_MOUSE_INPUT;\n dwNewMode &= ~ENABLE_QUICK_EDIT_MODE;<\/FONT>\n SetConsoleMode(hConsole, dwNewMode);\n<\/PRE>\n
ENABLE_QUICK_EDIT_MODE<\/CODE> is an extended\nflag,\nand if you want to modify an extended flag, you also have to pass\nthe\nENABLE_EXTENDED_FLAGS<\/CODE> flag.\n(You can guess how I discovered this.)\n<\/P>\n\n dwNewMode &= ~ENABLE_QUICK_EDIT_MODE;\n SetConsoleMode(hConsole, dwNewMode |\n ENABLE_EXTENDED_FLAGS<\/FONT>);<\/p>\n
ENABLE_EXTENDED_FLAGS<\/CODE> flag.\nFor bonus points, come up with a way the flag could have\nbeen avoided while still solving the problem the flag was created for.\n<\/P><\/p>\n","protected":false},"excerpt":{"rendered":"