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RectInRegion function (wingdi.h)

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The RectInRegion function determines whether any part of the specified rectangle is within the boundaries of a region.

Syntax

BOOL RectInRegion(
  [in] HRGN       hrgn,
  [in] const RECT *lprect
);

Parameters

[in] hrgn

Handle to the region.

[in] lprect

Pointer to a RECT structure containing the coordinates of the rectangle in logical units. The lower and right edges of the rectangle are not included.

Return value

If any part of the specified rectangle lies within the boundaries of the region, the return value is nonzero.

If no part of the specified rectangle lies within the boundaries of the region, the return value is zero.

Requirements

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

See also

PtInRegion

RECT

Region Functions

Regions Overview