How to locate the "input cursor" in the Edit control to a given position and movement problem requires expert guidance

romanse

Edit control problem,
I want to make the Edit control like AutoCAD's command input line
For example: Command: Enter the center point =

As soon as I setFocus Edit, the input cursor will automatically jump to "Command: input dot =", it cannot be the first character of Edit
And, after jumping to “Command: Enter Dot =”, the cursor cannot be “returned” (that is, pressing the BackSpace key, you can only return to "=". You cannot return "Command: Enter Dot =" ),
You can't use "Left Arrow" to move "=" before, you can only move after "="


Please master how to implement this method, any ideas for my reference, thank you very much.

1. How to position the input cursor yourself
2. When the cursor moves to a given position, you cannot use "BackSpace" and "Left Arrow" to continue moving to the given position


Please master

firemars

TMaskEdit doesn't know if it works

romanse

Don't be able to TMaskEdit, more troublesome. Boss, you don't seem to have used AUTOCAD, so I don't know what I mean.

xietao405

MaskEdit should be able to set the Mask property to the prompt character, it seems to automatically skip the prompt character

Or SelStart SelLength SelText in the Edit control can set the cursor position
Then respond to keyboard input events, determine the corresponding keys of the keyboard to block

romanse

What SelStart SelLength SelText in the Edit control represents. . . . .

tekblade

SelStart SelLength SelText

romanse

What SelStart SelLength SelText in the Edit control represents. . . . . (Chinese meaning what function or attribute),

xietao405

SelStart Sets where the selection starts
SelLength sets the selected length
SelText selected

Call SelText after the first two properties are set

Set length to 0 start to the cursor position

Please take a look at BCB first ...