EM_SETRECTNP top-level constant Null safety
Sets the formatting rectangle of a multiline edit control.
The EM_SETRECTNP message is identical to the EM_SETRECT message, except that EM_SETRECTNP does not redraw the edit control window.
The formatting rectangle is the limiting rectangle into which the control draws the text. The limiting rectangle is independent of the size of the edit control window.
This message is processed only by multiline edit controls. You can send this message to either an edit control or a rich edit control.
const EM_SETRECTNP = 0x00B4;