{"id":11282,"date":"2024-03-14T13:44:47","date_gmt":"2024-03-14T13:44:47","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-pass-messages-between-two-dialog-boxes-in-mfc\/"},"modified":"2025-08-04T09:50:13","modified_gmt":"2025-08-04T09:50:13","slug":"how-to-pass-messages-between-two-dialog-boxes-in-mfc","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-pass-messages-between-two-dialog-boxes-in-mfc\/","title":{"rendered":"MFC Dialog Box Message Passing"},"content":{"rendered":"

In MFC, messages can be passed between two dialog boxes using the following methods:<\/p>\n

    \n
  1. Utilize global variables: Define a global variable in one dialog box so that it can be accessed directly in another dialog box to pass messages.<\/li>\n
  2. Use message mapping: send a custom message in one dialog box, and have another dialog box receive the message by processing it in the message mapping table.<\/li>\n
  3. By using messaging mechanism, messages can be passed through sending custom messages or WM_COPYDATA messages.<\/li>\n
  4. Utilize shared memory: Use shared memory to facilitate communication between two dialog boxes.<\/li>\n
  5. Using Windows message queue: Communication between two dialog boxes can be achieved by sending messages through functions such as PostMessage and SendMessage.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    In MFC, messages can be passed between two dialog boxes using the following methods: Utilize global variables: Define a global variable in one dialog box so that it can be accessed directly in another dialog box to pass messages. Use message mapping: send a custom message in one dialog box, and have another dialog box […]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[274,14499,14500,8569,9861],"class_list":["post-11282","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-c","tag-dialog-boxes","tag-message-passing","tag-mfc","tag-windows-programming"],"yoast_head":"\nMFC Dialog Box Message Passing - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn effective methods for passing messages between MFC dialog boxes using global variables, message mapping, and custom messages. 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