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How can I handle the Return key in a CEdit control?

由 跟風遠走 提交于 2019-12-22 03:54:41
问题 How can I handle the Return key ( VK_RETURN ) in a CEdit control? The CEdit control is parented to a CDialog . 回答1: You could also filter for the key in your dialog's PreTranslateMessage. If you get WM_KEYDOWN for VK_RETURN , call GetFocus . If focus is on your edit control, call your handling for return pressed in the edit control. Note the order of clauses in the if relies on short-circuiting to be efficient. BOOL CMyDialog::PreTranslateMessage(MSG* pMsg) { if (pMsg->message == WM_KEYDOWN &

How to get text from CEdit control

由 五迷三道 提交于 2019-12-21 01:18:12
问题 I'm a new guy with ATL. So forgive me to ask this question. Problem description: One CEdit control is added into a ATL dialog class. It's attached in the dialog initialize function. //Define the edit control ATLControls::CEdit m_txtInput; //In the OnInitDialog function m_txtInput.Attach(GetDlgItem(IDC_INPUT_LINE)); m_txtInput.SetWindowText(_T("New directory")); //In the public memeber function of the dialog GetInput() //I have tried three kinds of method to get the text. But all of them are

CEdit control maximum length? (in characters it can display)

由 孤人 提交于 2019-12-18 04:44:28
问题 What is the maximum length for the text string contained in a CEdit control in MFC? I get a beep when trying to add a character after the character 30001 is this documented anywhere? Can I display longer texts in a CEdit? Should I use another control? As "Windows programmer" says down below, the text length limit is not the same when the user types as when we programatically set the text using SetWindowText. The limit for setting a text programatically is not mentioned anywhere. The default

How can I paint CEdit Control without uncovered area?

由 无人久伴 提交于 2019-12-13 21:50:22
问题 I have CDialg and CEdit Control on dialog. So, to paint CEdit control without sub-classing CEdit Class, I used CDialog::OnCtlColor like this. if( nCtlColor == CTLCOLOR_EDIT ) { pDC->SetBkColor(RGB(200, 255, 200)); } But as you can see, that it omits some margin area of edit control. How can I paint it whole window Rect of CEdit? 回答1: You also need to return a brush with the correct colour, so create a brush in the dialog constructor #define EDITCOLOR RGB(200, 255, 200) m_brEdit

Visual C++ get string from Cedit

由 爱⌒轻易说出口 提交于 2019-12-11 11:18:55
问题 This is probably a pretty basic question, but I can't seem to get it. I am working on a visualC++ project and I basically want to get a string from a GUI and then use that as a filename. I have written the following thus far, where IDC_FILE_NAME is the ID of the edit control box but I'm not sure if that is even the way to accomplish this. m_pFileName = (CEdit*)GetDlgItem( IDC_FILE_NAME ); CString fName =_T(" "); GetDlgItemTextA(IDC_FILE_NAME, fName); 回答1: but I'm not sure if that is even the

MFC CEdit control autocomplete

由 冷暖自知 提交于 2019-12-08 14:21:33
I want to implement the autocomplete capability for the MFC's CEdit control but I couldn't find anything on the web. I looked at the SHAutoComplete, but it seem like it's only useful for URL and file/folder path. I was thinking of manually implement the function by programmatically display a popup menu at the blinking i-bar, but I encountered 2 problems: I don't know how to get the xy coordinate of the blinking i-bar I can't type anything after the popup menu is displayed Can someone point me to an existing implementation that I can use? 来源： https://stackoverflow.com/questions/38855951/mfc

MFC CEdit control autocomplete

由 為{幸葍}努か 提交于 2019-12-08 05:00:37
问题 I want to implement the autocomplete capability for the MFC's CEdit control but I couldn't find anything on the web. I looked at the SHAutoComplete, but it seem like it's only useful for URL and file/folder path. I was thinking of manually implement the function by programmatically display a popup menu at the blinking i-bar, but I encountered 2 problems: I don't know how to get the xy coordinate of the blinking i-bar I can't type anything after the popup menu is displayed Can someone point me

CEdit numeric validation event C++ MFC

由 ≡放荡痞女 提交于 2019-12-07 10:57:01
问题 I have a CEdit text box which is a part of a property pane and only allows numeric values (positive integers). The box works fine when people enter non-numeric values, but when they delete the value in the box a dialog pops up saying: "Please enter a positive integer." Here is the situation: 1. I have a number (say 20) in the box. 2. I delete the number. 3. I get the error dialog. Could anybody tell me how I can intercept this event and put a default value in there? Here is what my property

CEdit numeric validation event C++ MFC

由 夙愿已清 提交于 2019-12-05 14:32:43
I have a CEdit text box which is a part of a property pane and only allows numeric values (positive integers). The box works fine when people enter non-numeric values, but when they delete the value in the box a dialog pops up saying: "Please enter a positive integer." Here is the situation: 1. I have a number (say 20) in the box. 2. I delete the number. 3. I get the error dialog. Could anybody tell me how I can intercept this event and put a default value in there? Here is what my property pane looks like: const int DEFAULT_VALUE = 20; class MyPropertyPane:public CPropertyPane { //....

How can I handle the Return key in a CEdit control?

由 青春壹個敷衍的年華 提交于 2019-12-05 01:46:42
How can I handle the Return key ( VK_RETURN ) in a CEdit control? The CEdit control is parented to a CDialog . Aidan Ryan You could also filter for the key in your dialog's PreTranslateMessage. If you get WM_KEYDOWN for VK_RETURN , call GetFocus . If focus is on your edit control, call your handling for return pressed in the edit control. Note the order of clauses in the if relies on short-circuiting to be efficient. BOOL CMyDialog::PreTranslateMessage(MSG* pMsg) { if (pMsg->message == WM_KEYDOWN && pMsg->wParam == VK_RETURN && GetFocus() == m_EditControl) { // handle return pressed in edit
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