Win32 Default Height of Edit Control

Question

I'm using CreateWindowEx to create an Edit control (a textbox), but saying CW_DEFAULT doesn't help with getting the default height of the textbox -- it just makes a window with a height of zero.

How do I get the system-default size of a textbox, so I can turn Edit control into a normal-looking textbox?

Extrabold

That is the documented behavior: "if CW_USEDEFAULT is specified for a pop-up or child window, the nWidth and nHeight parameters are set to zero.". So CW_USEDEFAULT is definitely the wrong approach. – Omasum

Answer 1

The recommended size is 14 dialog units. Here is the reference

You can use MapDialogRect to convert dialog units into pixels.

Omasum

Is there any way to get this programmatically? Or do I need to hard-code it into my program? – Extrabold

You mean the 14 dialog units, or the number of pixels. Dialog units are defined in terms of the height of a line of text, so that number should be hard-coded. As I said, you then use MapDialogRect to convert to pixels, taking into account the user settings for font size and monitor DPI. – Omasum