获取已由 EM_LIMITTEXT 设置的最大编辑器长度

Question

Text limit of an edit control could be set by sending EM_LIMITTEXT Windows message.

Is there some way to request this parameter from an edit control?

Answer 1

According to the EM_GETLIMITTEXT :

Parameters

wParam

Not used; must be zero.

lParam

Not used; must be zero.

Return value

The return value is the text limit.

So you can try the following code to get the Text limit:

DWORD size = SendMessage(he, EM_GETLIMITTEXT, 0, 0);