GetStockObject Function

最新推荐文章于 2025-03-21 14:10:36 发布
转载 最新推荐文章于 2025-03-21 14:10:36 发布 · 622 阅读 · 0
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#function #system #windows #microsoft #dialog #colors

本文详细介绍了GetStockObject函数，该函数用于检索系统预定义的标准画笔、画笔、字体和调色板的对象句柄。文章列举了各种可用的标准对象类型，并提供了使用建议。

 

GetStockObject Function

The GetStockObject function retrieves a handle to one of the stock pens, brushes, fonts, or palettes.

Syntax

HGDIOBJ GetStockObject(
  __in  int fnObject
);

Parameters

fnObject [in]

The type of stock object. This parameter can be one of the following values.

ValueMeaning
BLACK_BRUSH

Black brush.

DKGRAY_BRUSH

Dark gray brush.

DC_BRUSH

Solid color brush. The default color is white. The color can be changed by using the SetDCBrushColor function. For more information, see the Remarks section.

GRAY_BRUSH

Gray brush.

HOLLOW_BRUSH

Hollow brush (equivalent to NULL_BRUSH).

LTGRAY_BRUSH

Light gray brush.

NULL_BRUSH

Null brush (equivalent to HOLLOW_BRUSH).

WHITE_BRUSH

White brush.

BLACK_PEN

Black pen.

DC_PEN

Solid pen color. The default color is white. The color can be changed by using the SetDCPenColor function. For more information, see the Remarks section.

NULL_PEN

NULL pen. The null pen draws nothing.

WHITE_PEN

White pen.

ANSI_FIXED_FONT

Windows fixed-pitch (monospace) system font.

ANSI_VAR_FONT

Windows variable-pitch (proportional space) system font.

DEVICE_DEFAULT_FONT

Device-dependent font.

DEFAULT_GUI_FONT

Default font for user interface objects such as menus and dialog boxes. It is not recommended that you use DEFAULT_GUI_FONT or SYSTEM_FONT to obtain the font used by dialogs and windows; for more information, see the remarks section.

The default font is Tahoma.

OEM_FIXED_FONT

Original equipment manufacturer (OEM) dependent fixed-pitch (monospace) font.

SYSTEM_FONT

System font. By default, the system uses the system font to draw menus, dialog box controls, and text. It is not recommended that you use DEFAULT_GUI_FONT or SYSTEM_FONT to obtain the font used by dialogs and windows; for more information, see the remarks section.

The default system font is Tahoma.

SYSTEM_FIXED_FONT

Fixed-pitch (monospace) system font. This stock object is provided only for compatibility with 16-bit Windows versions earlier than 3.0.

DEFAULT_PALETTE

Default palette. This palette consists of the static colors in the system palette.

 

Return Value

If the function succeeds, the return value is a handle to the requested logical object.

If the function fails, the return value is NULL.

Remarks

It is not recommended that you employ this method to obtain the current font used by dialogs and windows. Instead, use the SystemParametersInfo function with the SPI_GETNONCLIENTMETRICS parameter to retrieve the current font. SystemParametersInfo will take into account the current theme and provides font information for captions, menus, and message dialogs.

Use the DKGRAY_BRUSH, GRAY_BRUSH, and LTGRAY_BRUSH stock objects only in windows with the CS_HREDRAW and CS_VREDRAW styles. Using a gray stock brush in any other style of window can lead to misalignment of brush patterns after a window is moved or sized. The origins of stock brushes cannot be adjusted.

The HOLLOW_BRUSH and NULL_BRUSH stock objects are equivalent.

It is not necessary (but it is not harmful) to delete stock objects by calling DeleteObject.

Both DC_BRUSH and DC_PEN can be used interchangeably with other stock objects like BLACK_BRUSH and BLACK_PEN. For information on retrieving the current pen or brush color, see GetDCBrushColor and GetDCPenColor. See Setting the Pen or Brush Color for an example of setting colors. The GetStockObject function with an argument of DC_BRUSH or DC_PEN can be used interchangeably with the SetDCPenColor and SetDCBrushColor functions.

Examples

For an example, see Setting the Pen or Brush Color.

Requirements

Minimum supported clientWindows 2000 Professional
Minimum supported serverWindows 2000 Server
HeaderWingdi.h (include Windows.h)
LibraryGdi32.lib
DLLGdi32.dll

See Also

Device Contexts Overview Device Context Functions DeleteObject SelectObject

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