set_window_dcT_set_window_dcSetWindowDcSetWindowDcset_window_dc (算子名称)

名称

set_window_dcT_set_window_dcSetWindowDcSetWindowDcset_window_dc — Set the device context of a virtual graphics window (Windows NT).

参数签名

描述

set_window_dcset_window_dcSetWindowDcSetWindowDcSetWindowDcset_window_dc sets the device context of a window previously opened with new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window. All output (disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region, disp_imagedisp_imageDispImageDispImageDispImagedisp_image, etc.) is done in the window with this device context.

The parameter WINHDCWINHDCWINHDCWINHDCWINHDCwinhdc contains the device context of the window in which HALCON should output its data. This device context is used in all output routines of HALCON.

注意

The window WindowHandleWindowHandleWindowHandleWindowHandlewindowHandlewindow_handle has to be created with new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window beforehand.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 未经并行化处理。

参数表

结果

If the values of the specified parameters are correct, set_window_dcset_window_dcSetWindowDcSetWindowDcSetWindowDcset_window_dc returns 2 ( H_MSG_TRUE) . If necessary, an exception is raised.

可能的前置算子

new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window

可能的后置算子

disp_imagedisp_imageDispImageDispImageDispImagedisp_image, disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region

参考其它

new_extern_windownew_extern_windowNewExternWindowNewExternWindowNewExternWindownew_extern_window, disp_regiondisp_regionDispRegionDispRegionDispRegiondisp_region, disp_imagedisp_imageDispImageDispImageDispImagedisp_image, disp_colordisp_colorDispColorDispColorDispColordisp_color, set_lutset_lutSetLutSetLutSetLutset_lut, query_colorquery_colorQueryColorQueryColorQueryColorquery_color, set_colorset_colorSetColorSetColorSetColorset_color, set_rgbset_rgbSetRgbSetRgbSetRgbset_rgb, set_hsiset_hsiSetHsiSetHsiSetHsiset_hsi, set_pixelset_pixelSetPixelSetPixelSetPixelset_pixel, set_grayset_graySetGraySetGraySetGrayset_gray, set_partset_partSetPartSetPartSetPartset_part, set_part_styleset_part_styleSetPartStyleSetPartStyleSetPartStyleset_part_style, query_window_typequery_window_typeQueryWindowTypeQueryWindowTypeQueryWindowTypequery_window_type, get_window_typeget_window_typeGetWindowTypeGetWindowTypeGetWindowTypeget_window_type, set_window_typeset_window_typeSetWindowTypeSetWindowTypeSetWindowTypeset_window_type, get_mpositionget_mpositionGetMpositionGetMpositionGetMpositionget_mposition, set_tpositionset_tpositionSetTpositionSetTpositionSetTpositionset_tposition, set_window_extentsset_window_extentsSetWindowExtentsSetWindowExtentsSetWindowExtentsset_window_extents, get_window_extentsget_window_extentsGetWindowExtentsGetWindowExtentsGetWindowExtentsget_window_extents, set_window_attrset_window_attrSetWindowAttrSetWindowAttrSetWindowAttrset_window_attr, set_checkset_checkSetCheckSetCheckSetCheckset_check, set_systemset_systemSetSystemSetSystemSetSystemset_system

模块

Foundation