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C++/MFC-Picture Control

热度:71   发布时间:2023-12-14 05:45:36.0

Picture Control属于Cstatic类

能显示三种类型的图片:

Bitmap:位图(.bmp)
Cursor:光标(.cur)
Icon:图标(.icon)

一、Picture Control 控件类

CStatic::

SetBitmap

Specifies a bitmap to be displayed in the static control.

GetBitmap

Retrieves the handle of the bitmap previously set with SetBitmap.

SetIcon

Specifies an icon to be displayed in the static control.

GetIcon

Retrieves the handle of the icon previously set with SetIcon.

SetCursor

Specifies a cursor image to be displayed in the static control.

GetCursor

Retrieves the handle of the cursor image previously set with SetCursor.

SetEnhMetaFile

Specifies an enhanced metafile to be displayed in the static control.

GetEnhMetaFile

Retrieves the handle of the enhanced metafile previously set with SetEnhMetaFile


二、加载图片

注意:加载不同类型的图片时,picture control 控件的type属性中应改为相应的类型

Type:Frame //框架
Type:Etched Horz水平蚀刻线条
Type:Etched Vert垂真蚀刻线条
Type:Rectangle实心矩形
Type:Bitmap位图
Type:Icon  图标
Type:Enhanced Metafile 增强图元 支持wmf格式图片
Type:Owner Draw   自绘图
Color:颜色
    Black:黑
    Gray:灰色
    White:白色
    Etched:蚀刻

2.1LoadImage函数

HANDLE LoadImage(HINSTANCE hinst,   // handle of the instance containing the imageLPCTSTR lpszName,  // name or identifier of imageUINT uType,         // type of imageint cxDesired,        // desired widthint cyDesired,        // desired heightUINT fuLoad        // load flags
);

2.2从文件中载入

//载入文件里(即通过CFileDialog打开)的图片   文件中的第一个参数一般为空,路径,类型,宽,高, 默认大小HBITMAP  hbp=(HBITMAP)LoadImage(    NULL,   fileName,  IMAGE_BITMAP,   0,  0,  LR_DEFAULTSIZE|LR_LOADFROMFILE) ;

2.3从资源中载入

具体的可以看:

VS2010/MFC编程入门之二十七(常用控件:图片控件Picture Control)

//载入资源里的图片hbp=(HBITMAP)LoadImage(AfxGetApp()->m_hInstance,MAKEINTRESOURCE(IDB_BITMAP2),IMAGE_BITMAP,0,0,LR_DEFAULTSIZE) ;

2.4图片缩放

//图片大小缩放hbp=(HBITMAP)LoadImage(AfxGetApp()->m_hInstance,MAKEINTRESOURCE(IDB_BITMAP2),IMAGE_BITMAP,33,221,0) ;

三、释放资源

Bitmap

DeleteObject

Cursor

DestroyCursor

Icon

DestroyIcon


例:

HCURSOR  hbp=(HCURSOR)LoadImage(    NULL,   fileName,  IMAGE_CURSOR,   0,  0,  LR_DEFAULTSIZE|LR_LOADFROMFILE) ;
DestroyCursor(hbp);



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