PtVisible function (wingdi.h)

The PtVisible function determines whether the specified point is within the clipping region of a device context.

Syntax

BOOL PtVisible(
  [in] HDC hdc,
  [in] int x,
  [in] int y
);

[in] hdc

A handle to the device context.

[in] x

The x-coordinate, in logical units, of the point.

[in] y

The y-coordinate, in logical units, of the point.

If the specified point is within the clipping region of the device context, the return value is TRUE(1).

If the specified point is not within the clipping region of the device context, the return value is FALSE(0).

If the HDC is not valid, the return value is (BOOL)-1.

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	wingdi.h (include Windows.h)
Library	Gdi32.lib
DLL	Gdi32.dll