\nOne of the features added to\nversion 6 of the shell common controls\nis a warning balloon that appears if CapsLock is on in a password control.\nLet’s demonstrate.\nTake the\n\nscratch program<\/A>,\nadd a manifest that requests version 6 of the common controls\n(perhaps by using\n\na Visual C++ extension<\/a>),\nand add the following:\n<\/P>\n return TRUE;\n}\n<\/PRE>\n \nRun this program and hit the CapsLock key.\nThe warning balloon should appear.\n(If it doesn’t, then your manifest is probably not working.)\n<\/P>\n \nSuppose you want to suppress this warning balloon.\nWhy? I don’t know. Maybe you want to confuse your user.\nMaybe you think it looks ugly.\nWhatever the reason, you can suppress the balloon by\nsubclassing the edit control and swallowing the\n LRESULT CALLBACK NoBalloonWndProc(HWND hwnd, UINT uMsg,\n WPARAM wParam, LPARAM lParam)\n{\n switch (uMsg) {\n case EM_SHOWBALLOONTIP: return FALSE;\n }\n return CallWindowProc(g_wpEdit, hwnd, uMsg, wParam, lParam);\n}<\/p>\n BOOL\nOnCreate(HWND hwnd, LPCREATESTRUCT lpcs)\n{\n g_hwndChild = CreateWindow(TEXT(“edit”), NULL,\n ES_PASSWORD | WS_CHILD | WS_VISIBLE, 0, 0,\n 0, 0, hwnd, NULL, g_hinst, 0);\n if (!g_hwndChild) return FALSE;<\/p>\n g_wpEdit = SubclassWindow(g_hwndChild, NoBalloonWndProc);<\/FONT><\/p>\n return TRUE;\n}\n<\/PRE>\n \nWhen you run this modified program,\nyou’ll see that the balloon tip no longer appears\nbecause the subclass procedure intercepts all the\nballoon tips before the default edit control window\nprocedure can see them.\n<\/P>\n \n[Raymond is currently away; this message was pre-recorded.]\n<\/P><\/p>\n","protected":false},"excerpt":{"rendered":" One of the features added to version 6 of the shell common controls is a warning balloon that appears if CapsLock is on in a password control. Let’s demonstrate. Take the scratch program, add a manifest that requests version 6 of the common controls (perhaps by using a Visual C++ extension), and add the following: BOOL OnCreate(HWND […]<\/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-20603","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldnewthing","tag-code"],"acf":[],"blog_post_summary":" One of the features added to version 6 of the shell common controls is a warning balloon that appears if CapsLock is on in a password control. Let’s demonstrate. Take the scratch program, add a manifest that requests version 6 of the common controls (perhaps by using a Visual C++ extension), and add the following: BOOL OnCreate(HWND […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/20603","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=20603"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/20603\/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=20603"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/categories?post=20603"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/tags?post=20603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\nBOOL\nOnCreate(HWND hwnd, LPCREATESTRUCT lpcs)\n{\n g_hwndChild = CreateWindow(TEXT(“edit”), NULL,\n ES_PASSWORD | WS_CHILD | WS_VISIBLE, 0, 0,\n 0, 0, hwnd, NULL, g_hinst, 0);\n if (!g_hwndChild) return FALSE;<\/FONT><\/p>\nEM_SHOWBALLOONTIP<\/CODE> message.\n<\/P>\n\nWNDPROC g_wpEdit;<\/p>\n