{"id":35953,"date":"2005-04-07T09:00:00","date_gmt":"2005-04-07T09:00:00","guid":{"rendered":"https:\/\/blogs.msdn.microsoft.com\/oldnewthing\/2005\/04\/07\/the-dialog-manager-part-8-custom-navigation-in-dialog-boxes\/"},"modified":"2005-04-07T09:00:00","modified_gmt":"2005-04-07T09:00:00","slug":"the-dialog-manager-part-8-custom-navigation-in-dialog-boxes","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/oldnewthing\/20050407-00\/?p=35953","title":{"rendered":"The dialog manager, part 8: Custom navigation in dialog boxes"},"content":{"rendered":"

\nSome dialog boxes\ncontain custom navigation that goes beyond\nwhat\n\nthe IsDialogMessage<\/code> function<\/a>\nprovides.\nFor example,\n\nproperty sheets<\/a>\nuse Ctrl+Tab and Ctrl+Shift+Tab to change pages within\nthe property sheet.\nRemember\n\nthe core of the dialog loop<\/a>:<\/p>\n

\nwhile (<dialog still active> &&\n       GetMessage(&msg, NULL, 0, 0, 0)) {\n if (!IsDialogMessage(hdlg, &msg)) {\n  TranslateMessage(&msg);\n  DispatchMessage(&msg);\n }\n}\n<\/pre>\n
\n(Or\n\nthe modified version we created in part 7<\/a>.)\n<\/p>\n
\nTo add custom navigation, just stick it in before\ncalling IsDialogMessage.\n<\/p>\n
\nwhile (<dialog still active> &&\n       GetMessage(&msg, NULL, 0, 0, 0)) {\n if (msg.message == WM_KEYDOWN &&\n     msg.wParam == VK_TAB &&\n     GetKeyState(VK_CONTROL) < 0) {\n  ... do custom navigation ...\n } else<\/font> if (!IsDialogMessage(hdlg, &msg)) {\n  TranslateMessage(&msg);\n  DispatchMessage(&msg);\n }\n}\n<\/pre>\n
\nAfter retrieving a message, we check whether it was Ctrl+Tab\nbefore dispatching it or indeed even before letting\nIsDialogMessage<\/code> see it.\nIf so, then treat it as a navigation key.\n<\/p>\n
\nNote that if you intend to have modeless dialogs controlled\nby this message loop, then your test needs to be a little\nmore focused, because you don’t want to pick off keyboard\nnavigation keys destined for the modeless dialog.\n<\/p>\n
\nwhile (<dialog still active> &&\n       GetMessage(&msg, NULL, 0, 0, 0)) {\n if ((hdlg == msg.hwnd || IsChild(hdlg, msg.hwnd)) &&<\/font>\n     msg.message == WM_KEYDOWN &&\n     msg.wParam == VK_TAB &&\n     GetKeyState(VK_CONTROL) < 0) {\n  ... do custom navigation ...\n } else if (!IsDialogMessage(hdlg, &msg)) {\n  TranslateMessage(&msg);\n  DispatchMessage(&msg);\n }\n}\n<\/pre>\n
\nNext time, we’ll see another way of accomplishing this same task.<\/p>\n","protected":false},"excerpt":{"rendered":"
Some dialog boxes contain custom navigation that goes beyond what the IsDialogMessage function provides. For example, property sheets use Ctrl+Tab and Ctrl+Shift+Tab to change pages within the property sheet. Remember the core of the dialog loop: while (<dialog still active> && GetMessage(&msg, NULL, 0, 0, 0)) { if (!IsDialogMessage(hdlg, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } […]<\/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-35953","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldnewthing","tag-code"],"acf":[],"blog_post_summary":"
Some dialog boxes contain custom navigation that goes beyond what the IsDialogMessage function provides. For example, property sheets use Ctrl+Tab and Ctrl+Shift+Tab to change pages within the property sheet. Remember the core of the dialog loop: while (<dialog still active> && GetMessage(&msg, NULL, 0, 0, 0)) { if (!IsDialogMessage(hdlg, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/35953","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=35953"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/35953\/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=35953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/categories?post=35953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/tags?post=35953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}