SelectObject

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4/8/2010

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

Syntax

HGDIOBJ SelectObject(
  HDC hdc, 
  HGDIOBJ hgdiobj
);

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

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.

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.

Header	windows.h
Library	coredll.lib
Windows Embedded CE	Windows CE 1.0 and later
Windows Mobile	Windows Mobile Version 5.0 and later