ITextHost::TxInvalidateRect method (textserv.h)

Specifies a rectangle for the text host to add to the update region of the text host window.

Syntax

void TxInvalidateRect(
  [in] LPCRECT prc,
  [in] BOOL    fMode
);

Parameters

[in] prc

Type: LPCRECT

The invalid rectangle.

[in] fMode

Type: BOOL

Specifies whether the background within the update region is to be erased when the update region is processed. If this parameter is TRUE, the background is erased when the BeginPaint function is called. If this parameter is FALSE, the background remains unchanged.

Return value

None

Remarks

This function may be called while inactive; however, the host implementation is free to invalidate an area greater than the requested RECT.

Requirements

See also

ITextHost

Windowless Rich Edit Controls Overview