{"id":34763,"date":"2005-08-01T10:00:11","date_gmt":"2005-08-01T10:00:11","guid":{"rendered":"https:\/\/blogs.msdn.microsoft.com\/oldnewthing\/2005\/08\/01\/rendering-standard-windows-elements\/"},"modified":"2005-08-01T10:00:11","modified_gmt":"2005-08-01T10:00:11","slug":"rendering-standard-windows-elements","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/oldnewthing\/20050801-11\/?p=34763","title":{"rendered":"Rendering standard Windows elements"},"content":{"rendered":"

\n\nThe DrawFrameControl<\/CODE> function<\/A>\nallows you to render standard Windows elements in your custom controls.\nLet’s start by simply rendering a selected radio button.\nStart with our\n\nnew scratch program<\/A>\nand make this very simple change:\n<\/P>\n

\nclass RootWindow : public Window\n{\n …\nprotected:\n void PaintContent(PAINTSTRUCT *pps);<\/FONT>\n …\n};<\/p>\n
void RootWindow::PaintContent(PAINTSTRUCT *pps)\n{\n RECT rc = { 0, 0, 32, 32 };\n DrawFrameControl(pps->hdc, &rc, DFC_BUTTON,\n                  DFCS_BUTTONRADIO | DFCS_CHECKED);<\/FONT>\n}\n<\/PRE>\n
\nWhen you run the program, you’ll see a little radio\nbutton in the corner.\nWoo-hoo.\n<\/P>\n
\nYou might also notice that it’s an unthemed radio button.\nTo get a themed radio button, you need to use the theme-drawing functions\ndefined in the uxtheme.h<\/CODE> header file.\nLet’s make the following further changes:\n<\/P>\n
\nclass RootWindow : public Window\n{\n …\nprotected:\n void OpenTheme() { m_htheme = OpenThemeData(m_hwnd, L”Button”); }\n void CloseTheme()\n {\n  if (m_htheme) { CloseThemeData(m_htheme); m_htheme = NULL; }\n }\n RootWindow() : m_htheme(NULL) { }\n ~RootWindow() { CloseTheme(); }<\/FONT>\n …\n};<\/p>\n
LRESULT RootWindow::OnCreate()\n{\n OpenTheme();<\/FONT>\n return 0;\n}<\/p>\n
void RootWindow::PaintContent(PAINTSTRUCT *pps)\n{\n RECT rc = { 0, 0, 32, 32 };\n if (m_htheme) {\n  DrawThemeBackground(m_htheme, pps->hdc,\n                      BP_RADIOBUTTON, RBS_CHECKEDNORMAL,\n                      &rc, NULL);\n } else {<\/FONT>\n  DrawFrameControl(pps->hdc, &rc, DFC_BUTTON,\n                   DFCS_BUTTONRADIO | DFCS_CHECKED);\n }<\/FONT>\n}<\/p>\n
LRESULT RootWindow::HandleMessage(…)\n{\n …\n  case WM_THEMECHANGED:\n   CloseTheme();\n   OpenTheme();\n   break;<\/FONT>\n …\n}\n<\/PRE>\n
\nThis new version attempts to open the “Button” theme for the window\nwhen the window is created.\nIf themes are not enabled, then this call will fail.\nWhen it comes time to draw, we see whether we have a theme\navailable.\nIf so, then we use\n\nthe DrawThemeBackground<\/CODE> function<\/A> to draw it;\notherwise, we draw it the unthemed way.\nOf course, we close the theme handle at destruction,\nand we also refresh the theme handle if the user changes the theme.\n<\/P>\n
\nIf you run this new program with themes enabled,\nthen you will get the pretty themed radio button\ninstead of the old-fashioned unthemed radio button.\n<\/P>\n
\nNext time, we’ll look at the trickier menu bitmaps.\n<\/P><\/p>\n","protected":false},"excerpt":{"rendered":"
The DrawFrameControl function allows you to render standard Windows elements in your custom controls. Let’s start by simply rendering a selected radio button. Start with our new scratch program and make this very simple change: class RootWindow : public Window { … protected: void PaintContent(PAINTSTRUCT *pps); … }; void RootWindow::PaintContent(PAINTSTRUCT *pps) { RECT rc = […]<\/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-34763","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldnewthing","tag-code"],"acf":[],"blog_post_summary":"
The DrawFrameControl function allows you to render standard Windows elements in your custom controls. Let’s start by simply rendering a selected radio button. Start with our new scratch program and make this very simple change: class RootWindow : public Window { … protected: void PaintContent(PAINTSTRUCT *pps); … }; void RootWindow::PaintContent(PAINTSTRUCT *pps) { RECT rc = […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/34763","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=34763"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/posts\/34763\/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=34763"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/categories?post=34763"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/oldnewthing\/wp-json\/wp\/v2\/tags?post=34763"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}