\nalthough I explained in an earlier article how\nyou might use a custom dialog class<\/a>.\n<\/p>\nOkay, now we have the information necessary to create the window.\n<\/p>\n
\n HWND hdlg = CreateWindowEx(dwExStyle, pszClass,\n pszCaption, dwStyle & 0xFFFF0000, pt.x, pt.y,\n cxDlg, cyDlg, hwndParent, hmenu, hinst, NULL);\n<\/pre>\n\nNotice that we filter\nout all the low style bits (per-class) since we already\ntranslated the DS_*<\/code> styles into “real” styles.\n<\/p>\n\nThis is why your dialog procedure doesn’t get\nthe window creation messages like WM_CREATE<\/code>.\nAt the time the frame is created, the dialog procedure\nhasn’t yet entered the picture.\nOnly after the frame is created can the dialog manager\nattach the dialog procedure.\n<\/p>\n\n \/\/ Set the dialog procedure\n SetWindowLongPtr(hdlg, DWLP_DLGPROC, (LPARAM)lpDlgProc);\n<\/pre>\n\nThe dialog manager does some more fiddling at\nthis point, based on the dialog template styles.\nThe template may have asked for a window context help ID.\nAnd if the template did not specify window styles that\npermit resizing, maximizing or minimizing, the associated\nmenu items are removed from the dialog box’s system menu.\n<\/p>\n
\nAnd it sets the font.<\/p>\n
\n SetWindowFont(hdlg, hf, FALSE);\n<\/pre>\n\nThis is why the first message your dialog procedure\nreceives happens to be WM_SETFONT<\/code>: It is the first\nmessage sent after the DWLP_DLGPROC<\/code> has been set.\nOf course, this\nbehavior can change in the future; you shouldn’t\nrely on message ordering.\n<\/p>\n\nOkay, the dialog frame is now open for business.\nNext up: Creating the controls.<\/p>\n","protected":false},"excerpt":{"rendered":"
The dialog template describes what the dialog box should look like, so the dialog manager walks the template and follows the instructions therein. It’s pretty straightforward; there isn’t much room for decision-making. You just do what the template says. For simplicity, I’m going to assume that the dialog template is an extended dialog template. This […]<\/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-36023","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldnewthing","tag-code"],"acf":[],"blog_post_summary":"
The dialog template describes what the dialog box should look like, so the dialog manager walks the template and follows the instructions therein. It’s pretty straightforward; there isn’t much room for decision-making. You just do what the template says. For simplicity, I’m going to assume that the dialog template is an extended dialog template. This […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/36023","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=36023"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/36023\/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=36023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/categories?post=36023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/tags?post=36023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}