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

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 th...

MFC: Changing the colour of CEdit

Guys, can someone give me a brief run through of how to change the background colour of a CEdit control at runtime? I want to be able to change the background to red if the field is zero length and the normal white otherwise. ...

Handling Return key in CEdit control

How to handle return key (VK_RETURN) in a CEdit control? CEdit is lying in a CDialog. ...

CEdit numeric validation event C++ MFC

Hi, 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. ...

validating CEdit without subclassing

Is there any way to validate the contents of a CEdit box without subclassing? I want to check for invalid filename characters in a CEdit box and not allow the user to input it at all (keypress should not be recorded, if pasted in the box, the invalid characters should just not make it to the edit box).. Is there any easy way to do this...

MFC CEdit Ctrl Question

I have a CEdit control that I want to be able to take time input from. Now I want this input to come in the form hh:mm:ss. Currently I am using a separate CEdit control for hour, mins, & secs. I know I could require the user enter in colons to separate hours, mins, secs, but this I believe will get confusing for my users. I actually...

How to get CEdit to scroll properly?

I have a CEdit control that's used to display a diagnostics output. Sometimes the data overflows the screen size, so naturally I set the Vertical Scroll property to true (MFC dialog editor). But then, when I tried to scroll the text that was in the window before isn't cleared and the new text is written over it. The result is a big m...

CEdit selects everything when getting focus

When I move to a CEdit control on my dialog using the tab key or the arrow keys all the text in the control is selected. This behaviour is causing me problems and I would prefer it if the control just put the cursor at the start (or end) of the text and didn't select anything. Is there a simple way to do this (e.g. a property of the cont...

Placing a image inside an CEdit control in Win32

I'm trying to achieve an effect where there's a visible logo inside an edit control and the logo becomes hidden when the user places the focus on the edit control. What's the best way to approach this? Would it be better to place an image control on top of the edit control or paint the background of the edit control transparent and pos...

Write formatted text(printf style) to a MFC CEdit control, which would display the formatted text in a EditControl?

I need to display text along with values of variables in a CEdit controlled Edit Control Box. How do I do it ? Currently I'm using SetWindowText(), but that only takes a string...how do I get a formatted string to display in the edit control? Example: printf("The answer is %d\n",ans) -> how do i print the same message in a Edit Control...

MFC CEdit does not process messages

Hi I'm dealing with a really annoying bug here... Basically I have an MFC application, that has a CEdit used to display some text in read-only mode(CStatic is not used, because CEdit provides the scrolling feature). After some set of actions is performed, the CEdit quits processing WM_SETTEXT messages. It does receive them - I can clear...

How to change the text color in a disabled edit box using MFC?

Hello all, I have a dialog in which the edit box is disabled but the text should be displayed in red instead of the default grey. I tried the following: void CMyEdit::OnEnable(BOOL bEnable) { CEdit::OnEnable(bEnable); if (bEnable) { m_BackGroundColor = kRGBWhite; } else { m_BackGroundColor = kRGBDefaultGray; } ...

DDV_MinMaxUInt : Custom Validation Message

I am using MFC, to develop a Mobile App. For one of the CEdit controls, in the dialog box, I declared a variable as long int as follows. DDV_MinMaxUInt(pDX, m_txtCurrentValue, 1, 2000); So whenever, I try to close the dialog box with invalid values (integers that is not in the range specified or which are alphabetic characters.) it th...

ON_EN_KILLFOCUS called multiple times

I am using a CEdit control. And I have assigned an event handler for ON_EN_KILLFOCUS message. It gets called correctly. But the problem is that, when ever, I close the dialog box, this event handler gets called four times. How can I prevent this? ...

changing font color of text in a disabled CEdit control

I want to change the font color of text in a disabled CEdit control which is currently system gray. As I use a gray background, I wish to change the font color of text ( currently set to rgb value of COLOR_GRAYTEXT) in order to make it easier to read. There is a solution by using SetSysColors() but that has an ill effect of changing ...