SelectObject

This function selects an object into a specified device context. The new object replaces the previous object of the same type.

HGDIOBJ SelectObject(
  HDC hdc, 
  HGDIOBJ hgdiobj
); 

Parameters

• hdc
  [in] Handle to the device context.
• hgdiobj
  [in] Handle to the object to be selected. The specified object must have been created by using one of the following functions.

  Object	Functions
  Bitmap	CreateBitmap, CreateCompatibleBitmap, CreateDIBSection (Bitmaps can be selected for memory device contexts only, and for only one device context at a time.)
  Brush	CreateDIBPatternBrushPt, CreatePatternBrush, CreateSolidBrush
  Font	CreateFontIndirect
  Pen	CreatePen, CreatePenIndirect
  Region	CombineRgn, CreateRectRgn, CreateRectRgnIndirect

Return Values

If the selected object is not a region, the handle of the object being replaced indicates success. If the selected object is a region, one of the following values indicates success.

Value	Description
SIMPLEREGION	Region consists of a single rectangle.
COMPLEXREGION	Region consists of more than one rectangle.
NULLREGION	Region is empty.

NULL indicates that an error occurred and the selected object is not a region. Otherwise, a GDI_ERROR value is returned.

Remarks

This function returns the previously selected object of the specified type. An application should always replace a new object with the original, default object after it has finished drawing with the new object.

An application cannot select a bitmap into more than one device context at a time.

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Windows.h.
Link Library: Coredll.lib.

See Also

CombineRgn | CreateBitmap | CreateCompatibleBitmap | CreateDIBPatternBrushPt | CreateDIBSection | CreateFontIndirect | CreatePatternBrush | CreatePen | CreatePenIndirect | CreateRectRgn | CreateRectRgnIndirect | CreateSolidBrush | SelectClipRgn | GDI Functions

Last updated on Wednesday, April 13, 2005

© 2005 Microsoft Corporation. All rights reserved.